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TRUSTED BY FOREST HILL, TX HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon596
    Verified heating and air conditioning services reviews

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

Avatar for AirCo Air Conditioning Heating & Plumbing
AirCo Air Conditioning Heating & Plumbing
4.7(
188
)
Central A/C - InstallElectric Furnace / Forced Air Heating System - InstallBoiler or Radiator Heating System - Install or Replace+47 more

Serving Forest Hill, TX and surrounding areas

Approved

Super Service Award Winner

In business since 1990

Emergency services offered

Warranties offered

"Excellent Service. Ricardo was a knowledgeable technician. Evaluated and repaired the HVAC efficiently and effectively. Extremely satisfied with the work performed. Based on my experience with all the staff I came into contact with, I would recommend AirCo. A very satisfying experience."
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+2

Response time10 hrs
7 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Southern Air Mechanical
Southern Air Mechanical
5.0(
21
)
Central A/C - InstallElectric Furnace / Forced Air Heating System - InstallBoiler or Radiator Heating System - Install or Replace+47 more

Serving Forest Hill, TX and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"Excellent. I can't say enough about how pleased I am with Southern Air Mechancial LLC for my Air conditioning service needs. Out of habit, I had been using another vendor who recently told me in the last 10 days that my unit was oversized for my duct work, that it was going to take 6 hours to fix it, and was about to sell me a part with installation and labor that would have cost $1400. The tech said it would break in a year and the owner basically tried to sell me a new AC unit. Got a little suspicious after asking if my unit could be adjusted since it was a variable speed down to a 3 ton and the owner said, "well, let me send my tech again". I called Southern Air and spoke to Clint, the owner. I had purchased the unit 7 years ago and without hesitation, Clint visited with his technician, and replaced the part that was a known problem with my manufacturer. He warrantied the part and was back out in two days and had the system cooling within 2 hours. I will only use Southern Air Mechanical and now know how trustworthy they are and what excellent service they provide. You can't and will not go wrong by choosing Southern Air Mechanical for your AC needs."
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+1

Response time1 day
7 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Aire Serv of Fort Worth
Aire Serv of Fort Worth
4.6(
672
)
Central A/C - Service or Repair

Serving Forest Hill, TX and surrounding areas

Approved

In business since 1990

Free estimates

Emergency services offered

"Aire Serve Lake Worth TX did a phenomenal job servicing our gas furnace during the freeze 1/26/26. I called at 9am Monday and scheduled an appointment for between 10am and 2pm. They notified me when tech was in route and arrived at 10am. Tech Chandler Smith was professional, knowledgeable, and a pleasure to deal with. After some troubleshooting, he was able to restore the system and get us the much-needed heat turned back on. I absolutely recommend their service. From my initial call to their office to the closing of the service call was impressive."
Outdoor
TitleAir Handler
Insulation
Condenser
Maintenance

+5

1 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Dr. Air & Heat Services, LLC
Dr. Air & Heat Services, LLC
4.9(
161
)
Central A/C - Service or RepairThermostat - Install or ReplaceHeat Pump - Repair or Service+6 more

Serving Forest Hill, TX and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"Not only is David highly skilled in resolving HVAC issues, but he was a pleasure to work with and taught me a lot! He was punctual, communicative and patient, taking the time to explain what the issues were (in plain English), and in the end solved my A/C problems much faster AND cheaper than the so called “best in town” HVAC company I was working with. Highly recommend, and will be calling him back again!"
Closet upflow airhandler
4 TON GOODMAN AIRHANDLER
Savana
Response time4 hrs
Response rate94%
332 neighbors recently requested a quote
Avatar for Fresh Air Duct Cleaning
Fresh Air Duct Cleaning
4.7(
1,078
)
Air Ducts & Vents - Clean

Serving Forest Hill, TX and surrounding areas

Approved

Super Service Award Winner

In business since 2002

Free estimates

Credit card accepted

"They visited my home and supplied me with a comprehensive report on my existing HVAC system, as well as several pricing options. When it came to carrying out the task, they were quite skilled, performed it quickly, and left the area clean. From customer assistance to installation, it was a positive experience throughout."
Chimney Rebuild
Chimney Rebuild
Chimney Services
Chimney Services
Air Duct - Before & After

+40

Response time9 hrs
Response rate100%
31 neighbors recently requested a quote
Avatar for Divergent HVAC, LLC
Divergent HVAC, LLC
5.0(
7
)
Central A/C - Service or RepairElectric Boiler or Radiator Heating System - RepairElectric Boiler or Radiator Heating System - Repair - For Business+9 more

Serving Forest Hill, TX and surrounding areas

Approved

In business since 2021

Warranties offered

Small jobs welcome

"Highly recommend Divergent HVAC! Our AC went down right as the heat hit, and Divergent HVAC came the same day, fixed the issue, and thoroughly cleaned our condenser coils (which were caked in mud from all the nearby dirt work and constant dust). They were very knowledgeable, professional, fast, and didn’t break the bank. Great service all around, reliable and trustworthy. If you need HVAC help, call them! You won’t be disappointed."
Response time2 hrs
Recommended by71%of homeowners
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Heating and Air Conditioning FAQs, answered by experts

When a compressor gets overheated in central air systems or heat pumps, it can still cool your home for a while until it eventually gives out. If the compressor is chronically overheated and no one addresses the root cause, it will create an incredibly expensive problem when your entire HVAC system breaks down and stops working altogether.

It’s critical to use the right size AC for your space and not go too small or too big. If you purchase an undersized unit, it won’t properly cool your house, and it has to work harder to reach the optimal temperature. This will eventually wear your unit out. An oversized unit can spell trouble because it will turn off and on more frequently, which also wears out your AC unit. An oversized unit also causes humidity in the home.

As mentioned above, not all HVAC Schrader valves are necessarily the same. While the valve core and pin or spring size on Schrader valves used for HVAC are generally similar, the valves are not all universal and interchangeable. The size of Schrader valves varies depending on whether it's used in an air conditioner, bicycle tire, or motor vehicle tire.

If your home has an existing forced-air heat system, you can add a central air conditioner to it. An HVAC technician can retrofit your forced-air heating system by installing an evaporator coil onto the furnace plenum, the box next to the furnace that draws in air. Once installed, the air conditioning coils use the furnace’s blower to circulate the air.

A common HVAC rule is that for every 500 to 600 square feet of living space, you need 1 ton of heating or cooling capacity. Now that you know this common rule, you also need to know that it isn’t very accurate, and a dedicated pro wouldn’t use it for your home. If you talk to a pro who won’t or can’t perform a proper Manual J calculation, consider hiring someone more thorough.

The Forest Hill, TX 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.