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

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

Avatar for Select Air Conditioning
Select Air Conditioning
4.9(
54
)
Central A/C - InstallDuctless Mini-split A/C - Install or ReplaceGas Furnace / Forced Air Heating System - Install+47 more

Serving Keller, TX and surrounding areas

Approved

In business since 2008

Emergency services offered

Warranties offered

"We had three quotes for a new HVAC system since ours was original to the house (22 years old) and was failing.   They were middle of the road in price but were by far the most honest, fair and knowledgeable.   He could have easily recommended us replacing our evaporator coils that are 4 years old but he said we might as well save $2500 by keeping the ones we have since they are fine and use the new refrigerant.   He took the time to explain each system and what he would recommend for our house based on the readings he took.   He was the only one who actually measured our house and looked at our vents vs the others who just quoted based on what we previously had.   On the day of installation, they were on time and finished the job in 5 hours.   They were clean, efficient and professional.   We had used them previously for spring and fall maintenance and we will continue to do so...and will recommend them to anyone."
Generations of Help
Meet Bill Grote
Select 2015 Team Members
Truck
Old equipment

+2

Response time6 hrs
Response rate100%
6 neighbors recently requested a quote
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 Keller, 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."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+1

Response time1 day
7 neighbors recently requested a quote
Recommended by100%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 Keller, TX and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"David and team came in and installed a new HVAC system. He went over and beyond to finish in a timely manner and did not shortcut any of the necessary steps to finish our install. The final product is a new HVAC system that will blow the hair back!!!!!!"
Closet upflow airhandler
4 TON GOODMAN AIRHANDLER
Savana
Response time4 hrs
Response rate94%
333 neighbors recently requested a quote
Avatar for Prime AC and Heat, LLC
Prime AC and Heat, LLC
4.8(
37
)
Central A/C - Service or RepairDucts & Vents - Install or ReplaceElectric Furnace / Forced Air Heating System - Repair+3 more

Serving Keller, TX and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"Everything went great. They were professional. They sent a video introducing who would be doing the work. They assessed the problems, gave me a fair quote & I had the whole HVAC system replaced! Excellent job. Tomorrow the owner will come and explain everything to me again & I will download the thermostat app and complete the transaction $$"
Prime AC and Heat
Response time12 hrs
Response rate86%
39 neighbors recently requested a quote
Avatar for Rescue Air, LLC
Rescue Air, LLC
4.8(
262
)
Air Ducts & Vents - CleanCentral A/C - InstallCentral A/C - Service or Repair+12 more

Serving Keller, TX and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"Just when I thought I had already received a train of perfection HVAC services from Rescue Air Heating Cooling (and Plumbing), yes they raised the bar even higher. Today, repair expert, consultant, and general impresario Mr. Roman Arnold diagnosed, repaired, and rescued my older but wiser and otherwise excellent HVAC system from a state of non-function and he did this in only a few minutes, getting right to the heart of the matter fast. This did not surprise me only because my experiences with TEAM Rescue Air consistently demonstrated highest technical expertise, experience, sound practical judgement, kindness, consideration, listening skill sets, and representing clientâ s best interests. Thank you so very much Rescue Air for sending Mr. Roman Arnold for todayâ s â Rescue.â He is so experienced and expert, it is like he invented air conditioning. It was a good thing for me when I selected my new HVAC company that I landed at Rescue Air Heating and Cooling. I am a client/customer situated in North Dallas."
Dean 2015
Joe 2016
Sign installation
Sign
Night!

+19

Response time2 days
Recommended by96%of homeowners
Avatar for Frontline AC & Heating LLC
Frontline AC & Heating LLC
5.0(
10
)
Central A/C - InstallCentral A/C - Service or Repair

Serving Keller, TX and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"They did a great job. Very reasonable priced and did the job very promptly. Great customer service and knowledgable. They gave us the option of repairing or a new unit. No pressure at all. We decided on a new unit due to the age of our HVAC. Would highly recommend."
Air handler
Heatpump
Air handler Overview
Smart Nick Tstat
Roto Brush

+7

33 neighbors recently requested a quote
Avatar for Airbear Heating and Cooling
Airbear Heating and Cooling
5.0(
16
)
Central A/C - InstallCentral A/C - Service or RepairHeat Pump - Install or Replace

Serving Keller, TX and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"I had a terrible experience with a previous contractor who charged me $2,700 and didn’t even fix my AC. Luckily, Mr. David from Air Bear came out, located the issue immediately, and explained everything thoroughly. Air Bear is a very dependable and honest company. If you want to support a fantastic Veteran-owned business that does top-notch work, look no further. I cannot recommend them enough!"
Logo
New System
New system
Commercial unit
Make repairs

+27

4 neighbors recently requested a quote
Avatar for Climate Doctors
Climate Doctors
4.8(
3,290
)
Air Ducts & Vents - Clean

Serving Keller, TX and surrounding areas

Approved

Super Service Award Winner

In business since 2007

Free estimates

Credit card accepted

"Strongly recommend getting an energy audit completed on your home, especially when it's complimentary, thank you, Paul! There were quite a few items that needed attention in our home. The technicians Justin and Fernando were solid. They arrived on time, did a great job, were polite, and were very clean. They took before and after pictures, which shows how much I needed the work done. We went with the insulation to ensure it was at least 18 inches, the duct sealing of the junction boxes and HVAC unit, and we had to reroute the bathroom vent. We even did the optional UV-C light, which makes us feel much safer and takes a load off, especially in this current environment of being conscious of germs and all. Great technicians, great company, and solid work. Highly recommend Justin and Fernando :) The email and text reminder game is on point."
Response time1 day
Response rate100%
10 neighbors recently requested a quote
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Heating and Air Conditioning FAQs, answered by experts

Yes, running your air conditioning unit too cold can cause condensation in the air ducts and built up moisture on the air filter, resulting in a breeding ground for mold and mildew. Mold and mildew growth can irritate those with respiratory issues, so it’s best to keep your AC running at a normal temperature.

Many HVAC manufacturers provide warranties that encompass the cost of a new compressor, with durations ranging from 5 to 10 years, depending on the brand. These warranties cover critical components such as the compressor, condenser, connecting tubing, evaporator, and refrigerant charge. Moreover, they often include the necessary labor for replacement or repairs. Keep in mind that premium-brand compressors may offer lifetime warranty options. It's essential to note that these warranties rarely cover labor costs.

Running an air conditioner with mold is not safe because it can spread harmful mold spores throughout your home. Exposure to these spores can trigger various health problems, including respiratory issues, allergies, coughing, wheezing, sneezing, itchy eyes, and a sore throat. It may also aggravate asthma in household members. Continued exposure can increase the risk of more serious illnesses like sinus infections, pneumonia, and bronchitis. If you suspect mold in your air conditioner, you should stop using the system until it has been properly cleaned to avoid health risks and further contamination.

You might notice that your air conditioner isn’t running as effectively as it once did. Specifically, your AC unit could take longer to cool your home, or it might struggle to remove humidity from the air. Higher utility bills and hissing sounds coming out of your AC could also indicate a leak.

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.

The Keller, 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.