Furnace Installation Company in Nashville, TN
Reliable Furnace Help When Your Home Needs Heat
When your furnace is old, unreliable, or has stopped working altogether, you need clear answers and a trusted furnace installation company you can count on. Donelson Air Service Experts installs, replaces, maintains, and repairs furnaces for homes across the Nashville area, with a careful focus on safety and long term comfort.
We know a heating problem is more than an inconvenience. A cold home can be especially hard on children, older adults, and anyone working from home. Our team works to explain what is going on with your system, walk you through your options in plain language, and help you choose the right solution for your budget and your home.
From the first call to the final safety check, we focus on doing the job the right way. That means following local codes, testing your equipment thoroughly, and treating your home with respect so you can feel confident turning the heat back on.
To schedule furnace service or talk with our team about your heating options in Nashville, call (615) 913-4936.
Your Local Team for Furnace Installation, Replacement & Repair in Nashville
Choosing someone to work on your heating system is a big decision. You want a local furnace company that understands how Nashville homes are built and what our winters actually feel like. Our team works with gas furnaces and heating systems in older homes, townhomes, and newer builds, and we tailor our recommendations to the way each home is set up.
We handle the full life cycle of your furnace. That includes installing new systems, replacing units that are at the end of their life, completing detailed maintenance visits, and troubleshooting repair issues when something goes wrong. You do not have to juggle multiple contractors or wonder who to call. You have one team you can return to for any furnace question.
Every visit is built around clear communication. Our technicians arrive in uniform, explain what they plan to check, and review their findings with you before any work begins. You see the options, understand the pricing, and choose the path that feels right for your home.
Furnace Installation That Puts Safety & Comfort First
Right Sizing & Careful Planning
A new furnace is a major investment, and proper installation has a direct impact on how well it runs for years to come. When Donelson Air Service Experts installs a new heating system, we look at more than just swapping out equipment. We evaluate how your home is laid out, how much space needs to be heated, and how your existing ductwork is performing so your new unit is sized correctly.
Correct sizing helps reduce noise, uneven temperatures, and unnecessary strain on the equipment. It also supports better efficiency, which can make your home more comfortable while using energy more wisely.
Careful Installation & Thorough Testing
During installation, our team removes the old furnace carefully, protects nearby surfaces, and prepares gas, electrical, and venting connections for the new system. We follow manufacturer instructions and local code requirements for gas line connections, flue routing, and condensate drainage.
Once the new furnace is in place, we do not simply flip a switch and leave. We test ignition, airflow, safety shutoffs, and thermostat communication. We also check for gas leaks and verify that exhaust is venting correctly outside the home. Before we finish, we walk you through the basics of your new system and answer questions so you feel comfortable controlling your heat.
Honest Guidance on Furnace Repair Versus Replacement
How We Evaluate Your Furnace
Not every heating issue means you need a new system. Many problems can be resolved with a targeted repair. When you call Donelson Air Service Experts for help, our goal is to understand what is happening and then explain whether repair or replacement is the smarter choice based on your situation.
During a diagnostic visit, our technicians check key components such as the ignitor, burners, blower motor, control board, and thermostat, along with safety devices and filters. We also look at the age of your furnace, its repair history, and signs of wear, such as rust or cracks in the heat exchanger. These details help us give you a realistic picture of how much useful life may be left.
When Repair or Replacement Makes Sense
Sometimes a relatively new furnace with its first breakdown only needs a straightforward repair. In other cases, an older unit that has had repeated issues or has a serious safety concern may be a better candidate for replacement. We explain the pros and cons of each option, including likely future repair needs and differences in efficiency, so you can decide what feels right rather than feeling pushed toward a particular choice.
Preventive Furnace Maintenance & Tune Ups
Why Regular Maintenance Matters
Regular maintenance is one of the most effective ways to keep your furnace running safely and to reduce the chance of a surprise breakdown in the middle of a cold week. As a furnace maintenance company, Donelson Air Service Experts offers detailed tune ups that go far beyond a quick visual check.
This kind of preventive care supports more consistent temperatures throughout your home, helps your furnace use energy more efficiently, and can reduce the stress on key components. Many homeowners in Nashville find that scheduling maintenance ahead of the colder months gives them peace of mind that their system has been carefully checked before it has to work its hardest.
What Our Technicians Check During a Tune Up
During a typical maintenance visit, our technicians focus on several key areas:
- Burner and flame performance: Cleaning and checking burners to help ensure proper combustion.
- Heat exchanger condition: Inspecting for signs of damage or wear that could affect safety.
- Gas valve and fuel supply: Verifying connections and fuel delivery for safe, steady operation.
- Electrical components: Checking wiring, controls, and connections for secure, reliable performance.
- Blower and airflow: Evaluating the blower assembly, filter condition, and airflow through the system.
If we notice early signs of wear or performance issues, we explain them to you and discuss options before they turn into bigger problems.
Fast Furnace Repair When Your Heat Goes Out
When To Call for Furnace Repair
When your furnace stops working, every hour can feel long, especially overnight or during a cold snap in Nashville. Our team responds to furnace repair calls with the goal of diagnosing the issue quickly and giving you clear choices for what to do next.
Common signs that it is time to call for repair include loud or unusual noises from the furnace, short cycling where the system turns on and off frequently, air that is blowing but not warm, or strange odors when the heat comes on. If you notice these symptoms, shutting the system off and calling for service is often the safest choice.
What To Expect From a Service Visit
When our technicians arrive, they listen to your description of the problem, inspect the system, and use testing equipment where needed. Once they pinpoint the cause, they explain what they found and what repair options are available. You see the estimated cost and timing for each option so you can decide how to proceed. In many cases, straightforward issues can be resolved in the same visit, although more complex problems may require ordering specific parts.
How Our Team Serves Homeowners Across the Area
Adapting to Different Homes & Layouts
Heating needs are not the same for every home in Nashville. Older houses closer to the city center may have limited attic space and older ductwork. Newer homes on the edges of the area may have larger open floor plans and different insulation levels. Our team takes these details into account when recommending equipment and tuning systems.
The local climate also shapes how we plan your system. While winters here may not match the coldest parts of the country, we do see stretches of low temperatures that put real demand on furnaces. We work to match furnace capacity to your home so it can keep up without excessive cycling, which can increase wear and energy use.
Respectful Work in Every Home
In every home, we are careful to protect floors and work areas, keep tools organized, and clean up any debris before we leave. We want you to feel that your heating work was handled by a professional team that respects your time and your space, and that you can call us again whenever you have a question about your system.
To schedule furnace service or talk with our team about your heating options in Nashville, call (615) 913-4936.
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10% Off Any Product or Service for Active Duty, Retired, and Veteran Military Personnel
It’s our way of thanking you for your courage, dedication, and sacrifice to protect our freedom. All work is performed by licensed experts and backed by our Service Experts Guarantee.
Offer not valid on prior purchases and may not be combined with other offers. -
Save $90 on an HVAC Precision Tune-Up. Regularly $189, now only $99
A well-maintained system operates more efficiently, reducing energy consumption and lowering heating and cooling bills
Offer not valid on prior purchases and may not be combined with other offers. Excludes oil furnaces; call for pricing. **Potential savings may vary depending on age and condition of equipment, personal lifestyle, system settings, equipment maintenance, and installation of equipment and duct system. -
No Payments for 60 Days with Our Advantage Program
Get brand-new, high-efficiency equipment installed for one fixed, convenient monthly payment, with NO PAYMENT DUE for the first two months! NO money down; Installation, regular preventative maintenance, all repairs (parts & labor), and air filters INCLUDED
Some exclusions apply. See the terms and conditions within the Service Experts Advantage Program Lease Agreement for additional information. -
$99 Drain Cleaning Special. Regularly $375, Now Only $99
Reduce buildup on your pipes, Help avoid major plumbing repairs, Maintain a clean home.
Offer not valid on prior purchases and may not be combined with other offers. *Valid for one drain only. Accessible ground level clean. Call for more details. -
LimitedTimeOffer!NEW HVAC SYSTEM as low as $142/month - PLUS, YOU PAY NOTHING FOR 60 DAYS!
NO money down; Brand new, high-efficiency equipment; Installation, regular preventative maintenance, all repairs (parts & labor), and air filters INCLUDED.
Offer not valid on prior purchases and may not be combined with other offers. Advantage pricing applies to specific equipment only: Lennox 2-ton ML14 80% system. Some exclusions apply. See the terms and conditions within the Service Experts Advantage Program Lease Agreement for additional information. -
LimitedTimeOffer!Up to $500 OFF a New Water Heater
$500 off Tankless water heater or $250 off tank water heater. Now through January 31, 2026.
Valid on all qualifying water heater systems. If leasing under the Advantage Program, EZ-Pay enrollment is required for promotional pricing. Offer not valid on prior water heater purchases. Nov 28, 2025 - Jan 31, 2026
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Advantage Program Lease a New Top-Tier System with No Upfront CostsAdvantage Program Details -
Maintenance Plus Receive Seasonal Tune-ups, 15% Discount on Services, and More!See Membership Benefits -
Financing Options Convenient Options and Payment Plans AvailableAvailable with approved creditFinancing Options
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Most companies will recommend 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.
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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 airflow due to dirty or clogged furnace filters, or blocked condensate lines. If issues persist, call Donelson Air Service Experts for prompt repair.
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Your home’s air filter should be changed routinely, typically every 30 to 60 days.
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We service many types of heating systems, including gas furnaces and heat pumps.
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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.
Our Nashville team is ready to take care of your home service needs—with fast service and expert services that you can always rely on.