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  • 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 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 AC's Heating & Air
AC's Heating & Air
5.0(
13
)
Central A/C - Service or RepairDucts & Vents - Install or ReplaceElectric Furnace / Forced Air Heating System - Repair+2 more

Serving Karns, TN and surrounding areas

Approved

In business since 2022

Free estimates

Credit card accepted

"Adam and gracie with ACâ s Heating and air were amazing! They installed new ductwork and vents along with running new 240v wire to an oven for us. They did great work, did it fast and were very affordable. We highly recommend and will use them again!"
Adam Installing Ductwork
A Couple Finished Runs
Adam Installing Fresh Air Vent
Gracie Wiring Indoor unit
Trunk and Runs Installed by Adam and Gracie

+1

Response time5 hrs
Response rate97%
Recommended by100%of homeowners
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
Avatar for Ducts Air Duct Cleaning, Inc.
Ducts Air Duct Cleaning, Inc.
4.8(
105
)
Air Ducts & Vents - Clean

Serving Karns, TN and surrounding areas

Approved

Super Service Award Winner

In business since 1998

Free estimates

Emergency services offered

"I was first impressed when the owner, Mr Rankin , answered the phone within 2 rings. After explaining what i was looking for , Mr Rankin explained in detail what his company could do as far as duct cleaning of my HVAC system. He was forthright and knowledgeable and answered all my questions regarding his company's reputation and experience. Immediately after our conversation he emailed me a very detailed quite and his company insurance documentation. My appointment was made., and he texted me the names of the technicians. They arrived on time, equipped with booties to wear thru out the house. The work performed took about 4 hours from start to finish. Mr Rankin's techs were extremely polite and very respectful . They also took their tome cleaning up after themselves. We have noticed an immediate improvement, so much so i was considering replacing HVAC unit before i met Mr Rankin. Now the unit is working as it should and my entire hone is very comfotable. I am so happy with the results and if you are considering getting your HVAC ductwork cleaned and sealed , I would highly recommend this company. Good to see great customer service. Thankyou to Mr Rankin and his team of professional technicians"
Response time7 hrs
Response rate100%
Recommended by81%of homeowners
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Heating and Air Conditioning FAQs, answered by experts

Signs that your A/C system needs professional service include increased energy bills, uneven or poor cooling, loud or unusual noises, and frequent cycling.

While an air conditioner can temporarily run with a dirty filter, it is not recommended as it will not work efficiently. A dirty filter forces the system to work harder to circulate cool air, leading to reduced airflow, increased wear and tear, and higher energy bills. This added strain can cause the air conditioner to overheat or fail prematurely. Furthermore, a clogged filter may allow dust and dirt to accumulate in your ductwork, negatively impacting air quality. It is more cost-effective to clean or replace filters regularly than to pay higher utility bills and risk needing to replace the entire AC unit.

Many HVAC companies offer free quotes and free estimates for repairs and new HVAC systems. Others offer low-cost quotes or apply the cost of the estimates or diagnostics to your final bill if you hire them. Be aware that some companies advertise free HVAC quotes and recoup the costs by charging more for their services. Free HVAC quotes are never truly free—they cost the company time and effort—so be a good customer. Also understand that you may end up paying for free quotes in another way if you don’t hire a reputable company.

Yes, through thorough cleaning and inspection, optimizing functionality, and reducing energy use.

Yes, HVAC zoning systems offer energy savings by allowing precise temperature control in different zones in your home. Rather than conditioning the whole house uniformly, these systems direct airflow where needed, preventing energy waste. Tailoring comfort to specific areas reduces energy consumption and lowers utility costs, making HVAC zoning an energy-efficient choice.

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.