Service Experts technicians

Frequently Asked Questions

Heating

  • Homeowners should have their furnace or boiler system serviced at least once a year. This will help prolong the heater system’s life span and lower repairs and utility costs.

  • Heating maintenance is a lot like car maintenance. Routine furnace maintenance is the key to helping your heating system perform as long as possible.

  • Here are a couple steps you can take to keep your family protected from carbon monoxide:

    • Warm up your car outside of your garage. Cars are a significant source of carbon monoxide poisoning, so do not leave yours going in the restricted space of a garage. The same is true for gas equipment such as lawn mowers or snowmobiles.
    • Don’t run ovens or grills as heaters. These appliances are safe when used right but can make carbon monoxide when used for an extended period of time in small spaces.
    • Don’t turn on a gas generator indoors because it produces fumes.
    • Have your chimney inspected by a specialist. This ensures chimneys and vents aren’t blocked and are connected appropriately.
    • Confirm gas appliances are operating correctly, particularly your heater. You can ensure efficient, safe operation by booking routine furnace maintenance with Donelson Air Service Experts.
  • Ensuring your systems are maintained will help bring costs down. Check our helpful in-depth information about keeping your systems healthy. This will tell you about proper maintenance and why it’s important.

  • We service and install all popular brands, makes and models. As a more robust HVAC company, we have prompt access to components and systems for prompt replacements.

  • Yes. Our Experts are just a short way away, whether it calls for a furnace repair in the dark of a cold winter night or an AC replacement in the middle of a heat wave.

  • It’s often less expensive to replace your furnace and air conditioner at the same time. Plus, you’ll also enjoy greater energy efficiency all year-round. Here’s when you should replace both systems at the same time:

    • Your heater and air conditioner are more than 15 years old.
    • You want to install a high-efficiency air conditioner soon, which might not be compatible with an older model.
    • You want to improve your energy savings with a smart thermostat, which often don’t work with older heating and cooling equipment.
    • Installation is difficult.
    • You don’t want to have to worry about heating and cooling repairs in the next few years.

    Knowing when to schedule furnace installation can be tough and stressful. Our Experts at Donelson Air Service Experts have an A+ in home comfort, so you can count on them to help you with making the right decision. Get started by calling us at 615-953-9885 to request your free home comfort assessment today.

  • We service various types of heating systems, including gas furnaces and heat pumps.

  • We’ll do an in-home consultation, work with you to find the best heating system for your needs, execute the installation and also check that the system is working before leaving.

  • We provide financing so homeowners can get the systems they need for an affordable cost.

    We also offer the HVAC Advantage Program, which covers just about everything. You’ll receive an updated heating and cooling system but won’t have the hassle of tune-ups. You’ll have a new, high-efficiency system—plus maintenance, repairs and more at no extra cost—for merely one small monthly price.

  • Your house’s air filter should be changed routinely, usually every 30 to 60 days.

  • Regular heating maintenance fees can vary, so please view our Maintenance+ membership page to see detailed tune-up costs.

  • Routine maintenance plans are definitely worth the cost for several reasons. Benefits of furnace maintenance plans include automated check-ins, no trip charge fees, priority service and others.

  • If you want to include heating tune-ups with other important services, consider signing up for our Advantage Program™, which can help keep your warranty in good standing.

  • A popping disturbance is a common sign of an insufficient duct design. This takes place when there’s more airflow than your ductwork can manage.

    Troubles with your ductwork can lead to other ventilation and air quality problems, such as:

    • Significant noise
    • Greater energy needs
    • Early system malfunction
    • Irregular heating and cooling
    • Broken AC compressor in the summer
    • Too hot furnace or heat pump in the winter
    • Mold growth inside ducts

    Call a qualified company in Nashville like Donelson Air Service Experts to examine your home’s ventilation system. We can offer suggestions for duct repair or installation.

  • It’s common for your heating and cooling system to make a little noise. However, hearing odd or loud noises could mean there’s an electrical problem or trouble with the blower fan or capacitor. If not fixed, there can be serious (or expensive) consequences later on.

  • This could be because of improper thermostat settings. Check that the fan blower is set to “auto” and not “on.” Other causes include a damaged pilot light, restricted air flow due to dirty or clogged furnace filters, or blocked condensate lines. If issues persist, call Donelson Air Service Experts for prompt repair.

  • Most companies will suggest furnace replacement when the cost to repair your system is more than half the cost of a new system. At times, a repair won’t restore the heating system to a minimally effective level. The lifetime for most furnaces is 15-20 years, and so replacement is generally recommended during that time frame. For more considerations, visit our blog covering more details on when to repair or replace your furnace.

  • It’s often less expensive to replace your furnace and air conditioner at the same time. Plus, you’ll also enjoy greater energy efficiency year-round. Here’s when you should replace both systems at the same time:

    • Your furnace and air conditioner are more than 15 years old.
    • You want to install a high-efficiency air conditioner soon, which possibly might not be compatible with an older model.
    • You want to boost your energy savings with a smart thermostat, which often don’t work with older heating and cooling equipment.
    • Installation is difficult.
    • You don’t want to have to worry about heating and cooling repairs in the next few years.

    Knowing when to schedule furnace installation may be tough and stressful. Our Experts at Donelson Air Service Experts have an A+ in home comfort, so you can count on them to help you make the right decision. Get started by calling us at 615-953-9885 to request your free home comfort assessment today.

  • We’ll do an in-home consultation, work with you to find the best HVAC system for your needs, perform the installation and also check that the system is operating correctly before leaving.

Cooling

  • Small tasks like replacing the air filter and keeping your equipment maintained can go a long way in increasing energy efficiency. visit our full guide for savings you can earn by keeping your HVAC system healthy.

  • Central AC systems are ducted HVAC units that draw out heat from your home. There are also heat pump air conditioners, which draw out heat with a reversible flow of coolant, as well as ductless mini-split AC units.

  • The right sized air conditioner depends on the size of your home, the local climate and many other factors. You need to properly size the AC system to ensure maximum energy efficiency.

  • British thermal units are a kind of measurement used in cooling to illustrate how much energy your AC unit needs to absorb heat. If it says 10,000 BTUs, the model is capable of absorbing that much heat each hour.

  • Routine maintenance is extremely beneficial for your air conditioner. While it’s not strictly required, it’s an excellent investment in the energy efficiency and overall performance of your HVAC system. In most cases, having regular maintenance and service also keeps the manufacturer’s warranty valid.

  • Ductless air conditioning doesn’t use air ducts to transport cool air through a building. Instead, indoor air units blow the conditioned air directly into the room or area they’re installed in.

  • SEER represents Seasonal Energy Efficiency Ratio, which determines how effectively your air conditioner is cooling over its busiest season.

  • Heat pumps are extremely energy efficient, but may start to lose efficiency in seriously cold weather. Check out our guide for figuring out if a heat pump or air conditioner is right for cooling your home.

  • The cost of a/c services depends on the make and model, the seriousness of the problem and other factors. For lots of common repairs, you might expect to pay a few hundred for parts and labor.

  • The cost for AC installation largely depends on the size of the home and the replacement air conditioner unit the homeowner chooses. The installation amount can be well over $12,000, depending on the size of the home and the replacement AC that is chosen for the home. Our Advantage Program helps homeowners get access to the AC systems they need for one low monthly payment.

  • It’s often less pricey to replace your furnace and air conditioner at the same time. Plus, you’ll also take pleasure in greater energy efficiency year-round. If your units are older than 15 years or you need a high-efficiency model or smart thermostat, you should have a new AC and furnace installed together.

  • We install all types of air conditioning systems, including central AC systems, geothermal, heat pumps and ductless mini-splits. Schedule a quote to find the best fit for your home by calling Donelson Air Service Experts at 615-953-9885.

  • We offer HVAC financing options as well as the HVAC Advantage Program, which covers everything from new units to repairs* and maintenance for a low monthly price.

  • Some of the work during an ac tune-up includes a standard AC maintenance checklist:

    • Tightening electrical connections. This ensures your system is running safely.
    • Lubricating parts. When your system isn’t oiled, friction from moving parts can cause it to break down more regularly.
    • Cleaning the condensate drain line. Cleaning this line takes care of mold and clogs, which can cause leaks.
    • Cleaning the condenser coil and evaporator coil. These coils become dirty with time, reducing airflow and its potential to absorb heat.
    • Straightening coil fins. Aluminum fins on the coils can bend and decrease airflow.
    • Examining system controls. This makes sure your system is starting, running and shutting down properly.
  • There are usually many kinds of maintenance plans and pricing. Take a look at our memberships page to learn about our tiered maintenance memberships.

  • Seasonal air conditioner maintenance is important to keeping your equipment operating efficiently, and it can decrease the need for unexpected replacements.

  • Some key tells that you need AC maintenance service on your unit is if your home has poor airflow or hot and cold spots, leaks, unusual noises or warm air coming from the vents.

  • Check this full guide to AC maintenance for various things you can do. One of the main things homeowners can do to help maintain their system, other than having annual yearly or seasonal maintenance done, is to change your AC unit’s air filter every 60-90 days, or 30 days if you have family pets. Changing your filter on a routine basis can prolong the life span of your system by reducing wear and tear on the unit, preventing clogs and improving airflow. Using a higher quality HEPA filter can also help maintain the AC unit’s efficiency and reduce instances of sickness in your home.

  • A trip cost is the expense for the time and travel for a Service Experts professional coming to your home. Look at our offers for printable discounts for your future air conditioner service.

  • Yes. Our technicians are just a quick trip away to aid with an AC repair or replacement during an emergency.

    • AC leaking water. This is usually the PVC pipe going out of the AC unit. Leaking refrigerant can cause ice to collect on the coils and drip water. AC repair is necessary when this happens and should be treated as an AC emergency.
    • Air conditioner won’t start up. Homeowners can first check the thermostat settings and look for a tripped breaker on the electrical panel. If the breaker is tripped, it may not require a repair call.
    • AC not blowing cold air. Double check the thermostat settings are on the correct temperature and that your thermostat has power. Then replace the filter. You can also ensure the AC unit isn’t obstructed with debris, and that it isn’t leaking refrigerant. If you find a leak or your AC is still blowing hot air, call us at 615-953-9885 for emergency AC repair.
    • AC making strange noise. Screeching, banging or clicking sounds coming from your AC could indicate a serious problem. If you’re noticing unusual air conditioner noises, shut off your AC and call Donelson Air Service Experts for prompt AC repair at 615-953-9885.
  • Most companies will advise an AC replacement when the cost to repair your system is more than half the cost of a new system. For more factors to consider, visit our blog covering more details on whether to repair or replace your AC.

  • We service and install all types, including central AC, ductless mini-splits and central heat pumps. (Conditional content: As an effort to promote sustainability practices, we also install geothermal and solar HVAC.)

  • Heat pumps differ from other HVAC equipment because they move heat in or out of the building rather than creating it. Pumping heat into the building also works backward, allowing heat pumps to provide both heating and cooling.

  • Homeowners should have their heat pump system serviced at least once a year. This will help prolong the system’s life span and help to reduce repair and utility costs.

  • Keeping your systems maintained will help bring costs down. Check our helpful in-depth information about keeping your systems healthy. This will tell you about proper maintenance and why it’s important.

  • Yes. Professional service is just a short ways away, whether you’re in need of a heat pump repair or replacement on a weekend day or in the middle of the night. Get in touch by phone at 615-953-9885 for prompt service.

  • Heat pumps can deliver both heating and cooling, and air-source heat pumps tend to be ideal in mild climates where temps don’t dip below 10 degrees Fahrenheit.

  • A heat pump system can replace a heating system in areas where the climate is moderate. Check our more in-depth guide on different heat pump uses in the U.S. Generally, the answer is yes. Because heat pumps shift hot air rather than making it from a fuel source, they provide more efficiency than furnaces in most cases, and homeowners can expect 30-40% savings on utility costs when switching.

  • This depends on varying issues that are causing the need for repairs, which our ACE-certified technicians can help determine.

  • We install all different kinds of heat pumps systems, including air-source heat pumps that use central ductwork, ductless mini-split systems and ground-source heat pumps–also known as geothermal heat pumps).

  • Heat pump maintenance is important for the system to execute efficiently and have a long life span. A heat pump should go through routine maintenance at least once a year. Trust the Experts to assist with this with a maintenance membership.

  • Your home’s air filter should be changed regularly, which is usually every 30 to 60 days.

  • Seasonal maintenance plans are worth the financial investment for several reasons. Constant maintenance keeps everything working as seamlessly as possible, which helps lower energy bills while extending your equipment’s life span.

  • HVAC tune-ups can often be covered in most cases under a labor warranty if your system is still under warranty, but we can check to see if tune-ups are covered. Through the Advantage Program™, key services such as heat pump maintenance are included! It’s one of the most thorough HVAC services around.

  • Many customers pay between $250 and $600 for a heat pump repair, but this is based on what the problem is when the HVAC technician comes out to determine the issue.

  • Heat pumps have a slightly reduced life span than furnaces do since they’re used year-round, but with adequate, many heat pump systems last about 10-15 years.

  • Yes. Our Experts are just a short trip away to assist with a heat pump repair or replacement during an emergency.

  • Packaged HVAC units are combination HVAC systems that house an air handler and unit components in one metal cabinet system. This is used to maximize space in a basement or garage, or on rooftops in multifamily buildings.

  • We install all kinds of packaged HVAC systems, including packaged air conditioners, packaged gas/electric systems, packaged heat pumps and duel-fueled packaged systems. Give Donelson Air Service Experts a call to find the right one for your home.

Alternative Energy

  • Green energy HVAC focuses on reducing energy consumption and increasing the efficiency of existing HVAC systems in homes not set up for renewable energy options. Properly sized green installations reduce waste and increase output.

  • Some of the most energy-efficient HVAC systems available now are geothermal heat pumps and solar HVAC systems. Call 615-953-9885 today to have a conversation about system replacement if you’re interested.

  • High-efficiency HVAC systems use less energy than a standard HVAC system while providing the same (or better) output. This can save energy and money, and with regular tune-ups and maintenance, the life span of your system can increase. The longer a system is performing efficiently, the better impact we can have for sustainability.

  • There are rebates and incentive programs for certain new system installations in 2023. Donelson Air Service Experts can help you navigate discounts and payment for system replacements. We also offer payment options like financing as well as HVAC lease options with our Advantage Program™.

  • Geothermal systems use energy from below ground to provide heating and cooling. They use a “loop” system by moving and delivering from either the ground or a water source in heating mode. In cooling mode, this process works in reverse by extracting heat from inside the home to the ground or a water source. The cold air in cooling mode is the result of the process of removing heat and humidity as air is recirculated.

  • Geothermal HVAC can be more cost efficient over time due to operational savings on utility bills, despite the up-front costs. And they’re more efficient than traditional central heating and cooling systems. There are also federal rebates and incentives that we can help you navigate during the installation process.

  • Geothermal systems don’t generate heat, instead using the Earth’s natural ambient temperature for heating and cooling. You end up reducing your monthly utility bills, and geothermal systems can also last a lot longer. So long as you provide it with preventative maintenance, you can get 20 years from a geothermal heat pump and as much as 50+ years for an underground loop system.

  • Yes! Geothermal heat pumps are similar to traditional central heat pumps in that they are 2-in-1 systems capable of providing both heating and cooling. Even with this potentially confusing name, geothermal heat pumps are just as effective at cooling homes in different types of climates. In fact, they’re often the most efficient type of system available!

  • Solar technology converts sunlight to electrical energy through either PV (photovoltaic) panels or with mirrors designed to focus solar radiation. PV is used in solar panels, which are the most common solar energy system. The energy from the sunlight is absorbed by PV cells, which excites the cells’ electrons and produces electrical energy. When paired with battery storage, the process can even generate backup power for use at night and during outages.

  • Pros:

    • Renewable energy source
    • Reduced monthly electric bills
    • Simpler maintenance needs
    • Incentive programs like state and federal tax credits

    Cons:

    • Upfront installation costs
    • Weather-dependent efficiency, making climate/region something to consider
  • Solar energy systems can be a significant investment, but a large portion of these costs can be recouped as soon as the equipment has been in service for a few years. Batteries without panels can range from $12,000 to $22,000 depending on energy storage capacity, while full installation can run as much as $35,000. Schedule a quote with our Experts to find out what you need for a solar energy system.

  • Solar energy is ideal for solar HVAC systems on top of other appropriate equipment such as solar-powered water heaters.

  • The ultimate efficiency of adding solar panels to your home depends on the regional climate of where you live. Feel free to give us a call to schedule a quote and start the conversation for a solar energy installation.

  • Our solar Experts can assist in providing information. It’s worthwhile to research if there are other programs in your state aside from the 30% federal tax credit. Finally, it’s wise to have a trusted company like Donelson Air Service Experts complete a home energy audit. An in-depth audit helps you determine how much you could save through solar panel installation when compared to local utility costs.

  • Sustainable HVAC design is providing HVAC systems to homeowners and building owners while focusing on high-efficiency systems, reaching higher performance, while decreasing consumption and energy loss.

  • The most common sustainable HVAC systems are geothermal heat pumps, also known as ground source heat pumps or water source heat pumps.

  • High-efficiency HVAC units reach high performance (heating and cooling output) while using less energy than what was needed from older, less efficient models.

  • Green HVAC installation focuses on installing energy-efficient HVAC models and properly sizing systems for the home’s requirements to ensure maximum comfort and efficient energy use.

  • Geothermal and solar HVAC are the latest sustainable HVAC developments in heating and cooling.

  • Scheduling frequent tune-ups on your HVAC systems can help extend your system’s life span, which is a big step for personal sustainability. Smart thermostats also control the daily temperature of your home and help with zoning, which reduces impact on your systems by not having major temperature changes. Using energy-efficient HVAC systems can also be a big step in making your HVAC eco-friendly. High-efficiency HVAC systems are usually ENERGY STAR certified, which lowers carbon emissions by reaching high performance for less energy.

  • There are rebates and incentives in 2023 for adding energy-efficient HVAC models, like high-efficiency heat pumps. The Department of Energy goes over HVAC efficiency standards and changes the minimum efficiency ratings on models, like SEER rating, AFUE rating and HSPF rating, based on the newest research. This requires manufacturers to match the minimum efficiency ratings in all new models.

Ductwork and Insulation

  • Popping sounds are common if there’s a defect or damage in your ductwork. The actual sounds appear when there’s more airflow than your ductwork can regulate. Trouble with your ductwork can lead to other ventilation and air quality concerns, such as:

    • Frequent or undesirable noise
    • Greater energy waste
    • Premature equipment failure
    • Inconsistent heating and cooling
    • Damage to the AC’s compressor
    • Overheating
    • Mold and mildew growth
  • A whole-home zoning system helps you fine tune where heating and cooling is directed. With additional thermostats and dampers installed in the ductwork, each zone’s temperature can be individually adjusted.

  • The concentration of indoor pollutants average 3-5 times higher than outdoor air. In fact, EPA studies have found that exposure to contaminants can be 100 times higher indoors compared to outdoors. Allergens, microorganisms and even household cleaners can contribute to contamination and lower your indoor air quality. You can receive a comprehensive Home Health® Report Card by contacting the air quality specialists at Donelson Air Service Experts.

Electrical Services

  • A licensed electrician can perform an electrical load calculation to determine the right size of service needed for a home or business. This calculation takes into account the electrical needs of appliances, lighting, and other electrical devices.

  • Some important safety precautions include shutting off the power supply before performing work on any electrical component, using insulated tools, wearing appropriate personal protective equipment (PPE) and following electrical codes and legal guidelines.

  • It’s strongly recommended that electrical service be inspected at the very least every 10 years to ensure that it is safe and up to code.

  • Signs and symptoms of electrical service issues include flickering lights, frequent circuit breaker trips, hot or discolored electrical outlets or switches, buzzing sounds from outlets or switches and burning smells. Another issue is improper outlets in the kitchen or bathroom – which should be GFCI (ground fault circuit interrupter) outlets. This is a shock-resistant outlet that provides a safety measure and helps avoid fire hazards because water is a great conductor of electricity.

  • Efficiency could be improved through using energy-efficient appliances and light bulbs, adding insulation to walls and attics and also sealing air leaks.

Indoor Air Quality

  • Indoor air quality refers to pollution in your Nashville home or business. The concentration of airborne pollutants can be 2–5 times greater than in the open air. Since most people spend 90% of their time inside and breathe an estimated 3,000 gallons of air daily (according to the American Lung Association), this can eventually lead to problems.

    Depending on your specific air quality concerns, solutions include:

  • Some of the typical sources of pollutants include Volatile Organic Chemicals (VOCs) such as cleaning or personal care products, fuel-burning utilities and appliances, and particulate matter like dust, pollen and smoke.

  • Without A Doubt. Pollutants and particulate matter can expose you to illnesses and worsen respiratory conditions, especially for children and the elderly. For certain contaminants like CO, the effects may even be fatal.

  • Resolving indoor air quality concerns can produce a host of benefits to your health and well-being, such as:

    • Lower risk of illness
    • Fewer or less-intense asthma/allergy symptoms
    • Relieve sinus irritation or sore throats
    • Healthier, moisturized skin
  • If you find yourself cleaning every day or coughing constantly, your indoor air may not be as healthy as you would think. According to EPA studies, indoor pollutants can reach concentrations as much as 100 times higher than the air outdoors. You can determine your indoor air quality by arranging a Home Health® Report consultation with Donelson Air Service Experts.

  • Each home has differing comfort needs, especially if someone in your Nashville home has allergies, asthma or a weak immune system. You may need a single product like a high-performance air filtration system, or multiple. Donelson Air Service Experts can help you find the right combination of equipment.

  • No. HVAC air filters differ in quality and design, and several have exclusive features. We generally advise using the filter your HVAC manufacturer recommends pairing with your system. All filters are assigned MERV ratings on a scale from 1–20. MERV stands for Minimum Efficiency Reporting Value and can aid you to identify high-efficiency filters. For most residential needs, a MERV rating of 11 or lower will be sufficient.

  • The ideal schedule for cleaning or replacing your air filter relies upon multiple factors, like the filter design and MERV rating as well as the current indoor air quality. For standard 1”-3” filters, most brands recommend replacement every 30-90 days. Pets, health conditions and even nearby pollution sources can encourage replacing the filter more often.

    • A 1″ pleated air filter must be replaced every 30-60 days.
    • A 2″ pleated air filter should be swapped out every 3 months.
    • A 3” pleated air filter should be changed every 120 days.
    • A 4″ pleated air filter should be exchanged every 6 months.
    • A 5” or 6″ pleated air filter ought to be replaced every 9-12 months.
  • Assuming the issue is not your body’s hydration, very dry air can irritate your throat and sinuses. Consider installing a whole-home humidifier if you persistently struggle with a dry, itchy throat.

  • Your HVAC system extracts moisture as it functions, leading to situations where humidity levels fall out of balance. Portable humidifiers can resolve humidity concerns in a single room or small area, but a central humidifier assures balanced humidity throughout the entire building.

  • For most people, comfortable humidity levels are between 30-60%. These levels are especially hard to maintain in the winter, as cold air does not hold onto moisture as well as warm air. What’s more, your furnace displaces moisture by generating hot, dry heat.

  • The smartest way to determine an appropriate whole-house humidifier is multiplying the total square footage by the height of the ceiling. This will help determine how many gallons of water each hour is needed to balance humidity.

    You should also consider your available budget, as a humidifier needs maintenance just like any other mechanical equipment.

  • That depends entirely on the equipment purchased, but usually whole-house humidifiers average between 1.5 to 12 gallons per day. As you can imagine, arid climates will use more water to keep humidity in check.

  • Routine preventive maintenance is often crucial for lasting equipment efficiency, and your humidifier is no different. The humidifier’s reservoir should be regularly drained and cleaned to prevent mold.

  • Carbon monoxide (CO) is a colorless, odorless and tasteless gas produced by partial fuel combustion, which experts claim is frequently caused by insufficient access to oxygen. Appliances relying on natural gas, charcoal, wood or kerosene are common sources of CO gas, especially if they are not running correctly or have been installed wrong. CO is poisonous to the body and is lethal at high levels or long exposure.

  • Initial indicators such as nausea and fatigue are often mistaken as a result of the flu. But CO gas exposure can progress, potentially leading to confusion, organ damage or even death. Other symptoms include:

    • Headaches
    • Dizziness
    • Chest pain
    • Vomiting
  • Yes. Eliminating carbon monoxide should be a priority because of the jeopardy it poses to your health and well-being. CO gas can be found in any Nashville home or commercial property, making safe ventilation and prevention practices universally beneficial.

  • Prevention is the best place to start. A few safety precautions to take include:

    • Don’t let your car idle in the garage. Cars are a significant source of carbon monoxide poisoning, so do not leave yours going in the restricted space of a closed garage. The same is true for gas equipment such as lawn mowers or snowmobiles.
    • Don’t use ovens or grills as sources of heat. These appliances are safe when used correctly but can make carbon monoxide when used for an extended period in small spaces.
    • Never operate a gas generator indoors. The fumes will have a much harder time dissipating.
    • Have your chimney checked by a specialist. This ensures chimneys and vents aren’t blocked and are connected appropriately.
    • Verify gas appliances are operating correctly, especially your heater. You can ensure efficient, safe operation by scheduling routine furnace maintenance with Donelson Air Service Experts.

    If carbon monoxide has been detected, you should immediately vacate the building and alert the fire department and utility provider. If a leak is discovered, you should then contact a trusted HVAC company for repairs.

  • Because carbon monoxide is colorless, odorless and deadly in significant concentrations, installing carbon monoxide detectors in central locations is the most effective way to alert you to its presence.

    A carbon monoxide detector is like a smoke alarm, monitoring the air and notifying you if carbon monoxide levels are too high. If possible, we encourage you to have at least one detector near every bedroom on all floors in your home. Additional detectors can be placed near the kitchen, living areas or near combustion appliances. These detectors are ideally used in combination with our HVAC maintenance memberships, which keep your product in good shape and may help you prevent carbon monoxide.

  • If an air freshener isn’t doing the trick, there may be microbes or contaminants nearby producing the unpleasant odor. Bacteria and mold are frequent sources, but they can be solved with the sanitation properties of a germicidal UV light. They are really effective against odor-producing microorganisms.

Plumbing

  • If you notice the supply of hot water isn’t lasting as long as it should, it could be a problem with your tank water heater. The heating element may be covered in grime or mineral buildup.

  • A toilet that’s running constantly could be dealing with any number of issues, including a broken flapper seal, flush valve or flapper chain. In some cases it’s the handle itself that’s been damaged and separated from the chain. A running toilet wastes a lot of water, so it’s important to call Expert plumbers promptly at 615-953-9885.

  • One of the most common reasons your dishwasher isn’t draining fully is because the drain line is clogged. The line, also known as a drain hose, removes water from the dishwasher tub at the end of a cycle. If the drain line is clogged, water may not be able to flow properly. Contact our local plumbing Experts for troubleshooting and repairs.

  • A fast response is important if you’re dealing with a burst pipe as a result of freezing. Expert plumbers have the tools and experience for quality pipe repairs, but there are several things you can do on your own to keep the pipes from freezing in the first place:

    • Open kitchen and bathroom cabinet doors to enable warmer air to circulate around the plumbing. Be sure to move any harmful cleaners and household chemicals up out of the reach of children.
    • Let the cold water drip from faucets served by exposed pipes. Running water through the pipe—even at a trickle—helps prevent ice from forming and freezing.
    • Minimize changes to the thermostat and keep your home at least 50 degrees, even after you’re not home.
    • Check out our full guide for dealing with frozen pipes.
  • Grind up food scraps right away with cold water and leave the disposal on for about 30 seconds to avoid a clog forming. You should also avoid dumping coffee grounds, eggshells, potato peels and other large food waste into the disposal, because they produce drainage issues and bad smells.

  • Backflow and the subsequent cross connection can happen wherever your nonpotable plumbing system meets the water lines. As such, many different types of fixtures and appliances are at risk, including:

    • Sprinklers
    • Washing machines
    • Kitchen and bathroom faucets
    • Bathtubs and showers
    • Toilets
    • And more

    For commercial properties like industrial facilities, equipment such as boilers, chemical mixing tanks and laboratory equipment are vulnerable to backflow, etc.

  • Backflow preventers stop contaminants from entering the public water supply and posing a health risk to the community. Backflow prevention is vital because it helps to ensure that the municipal water supply remains safe and free of contaminants.

  • There are several types of backflow preventers, including:

    • Reduced pressure zone (RPZ) valves
    • Double check valves
    • Pressure vacuum breaker valves

    The type of backflow preventer you need depends on your building’s plumbing system and the most common contaminants the plumbing is susceptible to. Professional backflow prevention services should always help determine the most appropriate make and model for your needs.

  • Your home may have an RPZ or Reduced Pressure Zone. The zone’s consistent pressure serves as a backflow prevention device to prevent contaminants from flowing backward. At Donelson Air Service Experts, our certified testers concentrate on:

    • Annual backflow RPZ testing
    • RPZ inspections
    • Backflow prevention device installation and maintenance

    Since preventing trouble is almost always easier than repairing it, you should try to have your RPZ valve inspected every year as recommended.

  • Backflow preventers typically need to be tested yearly to ensure that they are functioning correctly, although the ultimate maintenance needs depend on the type of backflow preventer you have and its current condition.

  • Backflow preventers are complex technical devices, meaning installation is best left to a professional with the right tools and experience. Our backflow prevention specialists will ensure that the device is installed correctly and meets all relevant regulations and standards.

  • Costs depend on several factors. You should take into consideration the type of backflow preventer you need and the complexity of your property’s plumbing system as well as the cost of any needed parts and labor. Call today at 615-953-9885 for a free quote.

  • There are several signs that may indicate that your backflow preventer is not working correctly including:

    • Leaks
    • A large, sudden change in water pressure.
    • Unusual sounds coming from the prevention device.

    If you notice any of these signs, it is important to contact a professional backflow prevention service provider as soon as possible.

  • Without having a backflow prevention device, the backflow may contaminate your supply of potable water. This contamination could also enter the public water supply, posing a risk to the entire community. This could leave you open to health or legal consequences depending on the severity of the situation.

  • The regulations and codes that require backflow prevention systems vary by jurisdiction. In some areas, they are required by law for certain types of plumbing systems or for plumbing designed to handle specific contaminants. A professional backflow prevention service provider can help check out any applicable regulations for your plumbing system.

  • Our faucet repair and installation in Nashville involves a suite of services designed to locate, diagnose and resolve whatever problem is plaguing your faucets. We have years of experience repairing faucets and can also provide seamless new or replacement installation. If you don’t know what to choose, your plumber can recommend the right faucet for the job.

  • Yes! We work with veteran installers that are happy to put in other plumbing fixtures like a bathtub or new showerhead.

  • To eliminate the risk of your garbage disposal smelling, food scraps should always be ground up right away with cold water. Thirty seconds should be more than enough time. Avoid dumping coffee grounds, eggshells, potato peels and banana peels into your disposal, because they frequently cause drainage issues and unpleasant smells. While bleach can seem like a good idea for cleaning your garbage disposal, it hardens grease and other food residue in your pipes, producing clogs.

    Our plumbing Experts suggest using these cleaning solutions each week to keep your disposal smelling brand-new:

    • Hot water and baking soda
    • Hot water and dish soap
    • Hot water and vinegar

    You can also buy garbage disposal pods or grind up citrus peels to help clear out odors. If your garbage disposal still smells, you might be dealing with a leak (especially if the smell resembles a sewer). Contact us at for Expert plumbing service.

  • When performing services like leak detection in Nashville, our plumbers set out to steadily check every part of your plumbing system for signs of a leak. Whether they’re under the kitchen sink or right at the water main, every leak we find will be fully repaired.

  • Yes! If there’s an emergency plumbing problem, we can respond promptly and make any repairs needed.

  • If you believe you have a leak but can’t see the signs, check your water meter:

    • Verify no water is being used inside or outside your home.
    • Check the leak indicator on your water meter. The indicator is commonly a triangular dial or miniature silver wheel. If the dial is spinning, you probably have a leak.

    We can find the origin of the leak and get it repaired before you spend more money or potentially damage your home.

  • With all the locations water is used in your home, there are a lot of areas you could uncover a leak.

    Leaks can be triggered by a variety of plumbing issues. They are usually spotted:

    • On water supply lines and connections underneath a sink
    • In washing machines, namely old, inefficient units
    • In hot- and cold-water hoses linked to your washing machine

    If you notice the signs of a leak, we can help. We back all of our work with a 100% Satisfaction Guarantee for a year.*

  • The cost to repair a leak is dependent on where the leak is in your home in addition to the severity of any damage. A minor, dripping leak is more easily resolved than severe damage to the water main.

  • You can’t always avoid leaks entirely, but you do have options for minimizing risk. Seals and valves are more likely to leak, so performing routine maintenance can minimize the risk. Letting professional plumbers handle projects like repair and repiping will help keep your plumbing as tightly sealed as possible.

  • Yes! If you have an emergency plumbing problem, we can respond promptly and make any repairs needed.

  • A water line allows fresh water into the home, while a sewer line carries waste water away from the home.

  • Signs of a leak in a water line include low water pressure, higher water bills, and damp or mushy areas around the house. Signs of a leak in a sewer line may be slow drains, sewage backups and rotten odors.

  • Water line clogs are often a result of mineral buildup, rust or debris. Clogs in sewer lines can be caused by grease, hair or other debris.

  • Water line replacement may be necessary if they’re severely corroded, leak constantly or are made of older materials.

  • Signs of a sewer line backup could be slower drains, sewage backups and foul odors.

  • For a quick diagnosis of what happened to your water or sewer lines, you should contact our Expert plumbers at 615-953-9885 right away.

  • Repairing and replacing water or sewer lines depends on the extent of the damage and the required materials. Your technician can review repair or replacement costs once we’ve finished the initial diagnostic visit.

  • In the right circumstances, your technician will be able to repair water lines or sewer lines with trenchless technology, minimizing digging and subsequent yard damage.

  • One of the most important things you can do is stay mindful of what you flush or pour down drains, avoiding tree roots near sewer lines, and having your lines inspected and cleaned regularly.

  • If a water line or sewer line issue is not fixed, it can lead to costly repairs, water damage and potential health hazards.