Top-rated air conditioning pros.

Get matched with top air conditioning pros in Decatur, TN

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Top-Rated Air conditioning pros in Decatur - Updated Nov 2026

Avatar for Tri-Star Home Repair Heating and Air
Tri-Star Home Repair Heating and Air
5.0(
21
)
Central A/C - Service or RepairDuctless Mini-split A/C - Install or ReplaceSwamp Cooler - Install or Replace+1 more

Serving Decatur, TN and surrounding areas

Approved

In business since 2023

Free estimates

Small jobs welcome

"Scott Tinkham is very professional & courteous! I'm recommending him to several people who, like myself, have been taken advantage of in the past. This gentleman answers your question in the manner that I appreciate! Thank you Mr. Tinkham, I'll definitely be using your service again."
Photos
Photos
Photos
Photos
Response time5 hrs
3 neighbors recently requested a quote
Recommended by44%of homeowners
Avatar for Worley Heating and Cooling LLC
Worley Heating and Cooling LLC
5.0(
9
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace

Serving Decatur, TN and surrounding areas

Approved

Free estimates

Emergency services offered

Small jobs welcome

"I found Worley H&C from Angi website. He reached out within minutes and repair was completed SAME DAY. This was for one of the rental properties i own. I was out of state. I will MOST DEFINITELY keep this number for future! Absolutely no regrets and Absolutely no negative issues with this company. Its a challenge to get ethical, honest repairs with companies these days. This company was a blessing for me."
Mini split install
Mini split install
Mini split install
Mini split install
Install photos

+18

21 neighbors recently requested a quote
Avatar for 9-Line HVAC & Electric, LLC
9-Line HVAC & Electric, LLC
5.0(
9
)
Central A/C - Service or Repair

Serving Decatur, TN and surrounding areas

Approved

In business since 2024

Emergency services offered

Warranties offered

"First to call after I inquired on Angi for recommendations. Promptly made an appointment and provided an estimate. Very pleased with the price, arrived on time, completed the HVAC duct replacement the same day. Also replaced the moisture barrier in the crawl space. Will highly recommend to friends and family."
Response time6 hrs
3 neighbors recently requested a quote
Recommended by71%of homeowners
Avatar for Sanchez heating and cooling
Sanchez heating and cooling
5.0(
5
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace

Serving Decatur, TN and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"I hired Sanchez Heating and Cooling a year ago. I am 110% satisfied with my heat and my air! Everything works perfectly and they also redid the duct work! It looks and works great. I had a question and called Johnny and he was here to fix it, immediately. They are quick, neat and professional. The price was great I can't recommend them enough."
HVAC
HVAC
HVAC
HVAC
HVAC

+2

9 neighbors recently requested a quote
Devon Frazier
New to Angi
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace+2 more

Serving Decatur, TN and surrounding areas

Approved

Hello, My name is Devon Frazier, I live in Crossville TN, I'm a soldier with the Tennessee Army National Guard. I'm also a Father and a Husband. I'm looking to make some extra money. I work Full time as a Commercial HVAC Forman. With a background in Residential HVAC. I am very adept in everything from \nPlumbing \nElectrical \nLight Carpentry \nMetal working\nProject planning \nCost coordination \nHVAC\nConcrete \nGeneral construction\nAnd roof Penetrations and sealing\nJust to name a few

Avatar for DS Tech Services
DS Tech Services
New to Angi
Window A/C Unit - InstallWindow A/C Unit - Install - For Business

Serving Decatur, TN and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

DS Tech Services has been in business for over 15 years. We are proud to report we have had 0 negative reviews in the time we have been in business. We are dedicated to get every job done right the first time, every time. We do this through honest communication with our customers through every part of the job.

Audio Video Installes
Audio Video Installation
Audio Video Installes
Audio Video Installes
Custom outdoor spaces

+12

Avatar for AAA HVAC Pros
AAA HVAC Pros
4.2(
298
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+12 more

Serving Decatur, TN and surrounding areas

In business since 1988

Emergency services offered

Credit card accepted

"They replaced our air handler in a mobile home and put new freon in the system are old evaporator coil was plugged up and dirty and they saved us a ton of money they were on time and honest and did great work we will use you guys from now on thank you so much"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+5

Recommended by83%of homeowners
...
Showing 1-10 of 114

FAQs for air conditioning projects in Decatur, TN

Most professional HVAC technicians require two to three hours to complete an expansion valve replacement. The timeframe depends on your unit's accessibility and whether additional repairs are needed. The process involves recovering refrigerant, removing the old valve, installing the new component, and recharging the system. Scheduling during less busy seasons may result in more convenient appointment times.

Operating your air conditioner with a malfunctioning expansion valve isn't advisable. Continuing to run the system could potentially damage other components, particularly your compressor, which is significantly more expensive to replace. If you notice performance issues like inconsistent cooling or unusual noises, it's best to have your system inspected before continuing regular use.

Expansion valves don't have a standard replacement schedule, as their longevity depends on system usage, maintenance frequency, and environmental factors. Regular professional maintenance helps identify potential valve issues before they cause system failure. Having your HVAC system serviced annually allows technicians to monitor component condition and recommend preventative replacements when necessary.

Refrigerant leaks require prompt professional attention. If your expansion valve is leaking, you'll likely notice reduced cooling performance and possibly hear hissing sounds near the unit. Addressing leaks quickly prevents further system inefficiency and avoids the environmental impact of released refrigerant. Your HVAC technician will need to repair the leak and recharge the system with the proper refrigerant type and amount.

Because many AC issues present similar symptoms, professional diagnosis is recommended. Problems like inadequate cooling, inconsistent temperatures, or strange noises could indicate expansion valve issues, but might also stem from refrigerant leaks, electrical problems, or airflow restrictions. A qualified HVAC technician has the tools and expertise to accurately identify the root cause and recommend appropriate repairs.

The Decatur, TN homeowners’ guide to air conditioning services

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