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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 RepairElectric Furnace / Forced Air Heating System - RepairGas Furnace / Forced Air Heating System - Repair+1 more

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 ReplaceGas Furnace / Forced Air Heating System - Repair+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%
312 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

"Air duct cleaning and dryer duct cleaning were requested. Very professional and detailed. Their workers did an excellent job cleaning my hvac units, and he was also very informative about the safety of my units. Excellent service."
Chimney Rebuild
Chimney Rebuild
Chimney Services
Chimney Services
Air Duct - Before & After

+40

Response time9 hrs
Response rate100%
28 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

To extend your HVAC system’s lifespan, it’s crucial to keep up with maintenance. This includes changing filters and thermostat batteries, keeping the outside unit clean and clear of clutter, and lubricating moving parts. Watch out for leaks, mold buildup, and blockages to ensure your unit stays in good working order. Spotting these issues early can be the difference between a simple, wallet-friendly repair and an expensive replacement.

To diagnose a bad HVAC or AC damper, assess the airflow from your vents. For a manual damper, close it, run your system, and check for airflow. If air is still coming through the vents, the damper is likely faulty and needs repair or replacement. For an automatic damper, turn on your HVAC system and monitor the airflow and room temperature. Signs of a problem include low airflow, a room that won't maintain its set temperature, or a drafty feeling. If you suspect a faulty automatic damper, you may need to hire a professional for repairs.

Replacing an HVAC system does not always include new ductwork. The decision depends on the condition of your existing ducts. If they are in good shape, correctly sized for the new unit, and meet current standards, they can often be reused. However, if the ducts are damaged, poorly designed, or improperly sized, they will likely need to be replaced or upgraded to ensure the new system operates efficiently. An HVAC contractor will assess your ductwork and recommend the best course of action. Typically, ductwork is purchased separately, and a full replacement will add to the overall project cost.

One of the fastest ways to unfreeze an AC unit is to turn off the unit and, if it’s warm outside, use the fan-only mode to help blow warmer air through the unit to speed up the defrosting process. While it may be tempting to use a hair dryer to defrost the air conditioner, that high heat can damage the coils.

After defrosting, if you can safely solve the issue with a fix like changing the filter, go ahead and do so. Otherwise, call in a pro before turning your AC back on.

Setting your AC unit to 78 degrees can, indeed, help you save energy. In fact, according to experts, every degree you turn the unit up could save you between 1% and 3% on your energy bills. That said, turning your unit off entirely while you’re out might actually be less efficient than keeping it on at a higher temperature. Why? The unit will need to work extra hard to cool the house back off again after all those hot hours. 

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.