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TRUSTED BY KARNS, TN HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon465
    Verified heating and air conditioning services reviews

Top-Rated Heating and air conditioning pros in Karns - Updated Nov 2026

Avatar for Smith Mechanical Heating & Air Conditioning, LLC
Smith Mechanical Heating & Air Conditioning, LLC
4.9(
61
)
Central A/C - InstallHeat Pump - Install or Replace

Serving Karns, TN and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"Jack and team came out on a less than 1 day notice as they were wrapping up the day. 5 other companies told me I had to wait until the morning. Jack explained each troubleshooting step, found the root cause quickly. Repaired on the spot and charged a very reasonable price. I will definitely hire again. As a matter of fact, I signed up for the maintenance program."
Maintenance new client
Maintenance new client
Is your AC unit a Fire Hazard?
Is your A/C unit a Fire Hazard?
Cleaned up and ready to go

+3

Response time4 hrs
Response rate87%
24 neighbors recently requested a quote
Avatar for CM Walter Heating & Air LLC
CM Walter Heating & Air LLC
5.0(
24
)
Gas Furnace / Forced Air Heating System - RepairCentral A/C - Service or RepairDuctless Mini-split Heating System - Install or Replace+1 more

Serving Karns, TN and surrounding areas

Approved

Free estimates

Offers commercial services

"Martin was very knowledgeable, an incredible experience with a total air conditioning replacement. He worked with me and my needs and was very professional; I cannot say enough about this guy. I would definitely rate him the highest regard in this area and will definitely be retaining him as my service HVAC technician. Just wow, he saved me thousands of dollars."
1 neighbors recently requested a quote
Avatar for Air Specialities LLC
Air Specialities LLC
5.0(
25
)
Air Ducts & Vents - Clean

Serving Karns, TN and surrounding areas

Approved

In business since 1988

Free estimates

Warranties offered

"It went great! Kevin and his crew went above and beyond my expectations. From the initial call, to the complete walkthrough free estimate, to the cleaning, Kevin kept us informed throughout the entire process. I asked for a thorough inspection and cleaning, and that is exactly what we got. They thoroughly cleaned and sanitized our complete HVAC system, including all supply lines, registers, and returns. They even removed and thoroughly cleaned the grills. They opened up the trunk lines and cleaned and sanitized them then sanitized with Foster’s 40:80 antimicrobial product. They sent me videos of their work as they were working throughout the house, and I was shocked to see mold growing in the attic unit. They cleaned and treated it, so hopefully our allergy problems will go away. Because they are mold specialists, I asked about a problem we were having with a leaking window. Kevin and his guys caulked the window and treated the interior wall and didn’t even charge me for the extra work. They were not the cheapest quote, but it was so much better than the last time we had vent cleaning, so the extra cost was so worth it! I highly recommend them and look forward to referring them to others and using them in the future."
Response time1 day
1 neighbors recently requested a quote
Recommended by91%of homeowners
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Heating and Air Conditioning FAQs, answered by experts

You should plan to change your AC unit's filter every one to three months, depending on the manufacturer's recommendations. You should also clean the coils at least once per year, but if you have pets or someone in your household has allergies, you might need to clean them more often. Fortunately, many pros will clean the coils and change the filter for you during an inspection, which you should schedule once or twice per year.

Some AC filters, known as reusable filters, can be cleaned and reinserted. Most AC filters, however, are disposable and cannot be cleaned. 

No. Evaporator coils are designed to work with specific refrigerant types, and they are rated by what kinds of refrigerant they use. It’s indicated with an “R” code. It’s important to match your evaporator coil and refrigerant or your system will not work properly. An AC technician can tell you what type of refrigerant your system needs and what evaporator coils will work with it.

After a while, dust, dirt, and other debris accumulates on an AC unit's coils and filters, making it less efficient and spreading allergens and other air pollutants throughout your home. Cleaning your AC unit will keep it running efficiently, minimizing future breakdowns and improving your indoor air quality.

In most cases, homeowners insurance will cover an AC replacement if it was damaged due to a covered peril—such as theft, fire, or storms. So, if your air conditioner needs replacing due to regular wear and tear, your insurance company probably won’t pay for a new one. However, home warranties often cover HVAC repairs and replacements.

The Karns, TN homeowners’ guide to heating and air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.