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TRUSTED BY WEBSTER GROVES, MO HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon1.7k+
    Verified heating and air conditioning services reviews

Verified Reviews for Heating And Air Conditioning Service pros in Webster Groves, MO

*The Angi rating for Heating And Air Conditioning Service companies in Webster Groves, MO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.

*The HomeAdvisor rating for Heating And Air Conditioning Service companies in Webster Groves, MO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.

Last update on July 10, 2026

Find Heating and air conditioning pros in Webster Groves

Avatar for SmartHouse Heating & Cooling
SmartHouse Heating & Cooling
4.7(
593
)
Central A/C - InstallBoiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For Business+47 more

Serving Webster Groves, MO and surrounding areas

Approved

In business since 1947

Free estimates

Emergency services offered

"The technicians are so nice and helpful, professional, and punctual. They've maintained my hvac for the three years I've lived in this house and all runs smoothly."
Old boiler being removed
A Manual-J load calculation is performed to determine the precise amount of heating and cooling needed for each space.
Installing a Mitsubishi Hyper Heat Mini Split System to Heat and Cool this Sunroom Addition.
Mitsubishi outdoor unit installed on rooftop to heat and cool 3rd floor of this St. Louis City home.
Daikin FIT Heat Pump Installed in University City Home

+106

Response time2 days
3 neighbors recently requested a quote
Recommended by91%of homeowners
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Avatar for Fresh Air Heating & Cooling
Fresh Air Heating & Cooling
4.8(
277
)
Central A/C - InstallCentral A/C - Service or RepairElectric Furnace / Forced Air Heating System - Install+47 more

Serving Webster Groves, MO and surrounding areas

Approved

In business since 1947

Free estimates

Emergency services offered

"The person who handled my call was friendly and professional. She told me a technician would be at my house in 4 hours and called me when he was on his way. The technician was outstanding, on time, professional, friendly, and quickly diagnosed and fixed the problem...best of all, he didn't try to sell parts/service that I didn't need! Best experience with an HVAC company I've ever had."
Fresh Air Van
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+2

12 neighbors recently requested a quote
Recommended by92%of homeowners
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Avatar for Dunn Heating Air Conditioning and Plumbing
Dunn Heating Air Conditioning and Plumbing
4.7(
274
)
Central A/C - InstallCentral A/C - Service or RepairElectric Furnace / Forced Air Heating System - Install+11 more

Serving Webster Groves, MO and surrounding areas

Approved

In business since 2003

Free estimates

Emergency services offered

"A-ok! Dunn OneHour HVAC is always top notch!"
Additional Photos
Response time2 days
31 neighbors recently requested a quote
Recommended by89%of homeowners
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Avatar for Anton's Plumbing, Heating/Cooling & Energy Experts
Anton's Plumbing, Heating/Cooling & Energy Experts
4.7(
515
)
Central A/C - InstallElectric Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - Install+38 more

Serving Webster Groves, MO and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1979

Free estimates

Emergency services offered

"I always recommend Anton's to family and friends who need HVAC services. Their prices are reasonable, and their service is top notch! All of their technicians are very professional and considerate and they don't try to sell you things you don't need. Ronan just came out this morning to do our annual A/C inspection. The service was excellent as always. He took the time to explain everything and made recommendations. I never felt pressured, and I trust this company to take care of my HVAC needs. They've got a customer for life!"
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+18

Response time12 hrs
Response rate100%
19 neighbors recently requested a quote
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Avatar for Rhymes Heating & Cooling
Rhymes Heating & Cooling
4.8(
193
)
Central A/C - InstallDuctless Mini-split A/C - Install or ReplaceBoiler or Radiator Heating System - Install or Replace+47 more

Serving Webster Groves, MO and surrounding areas

Approved

In business since 1993

Free estimates

Emergency services offered

"Extremely fast replacement heating and cooling installation. Exceptionally nice people. Zero problems after the installation of 2 Furnaces and 2 Air Conditioners in our zoned HVAC home."
Response time12 hrs
7 neighbors recently requested a quote
Recommended by98%of homeowners
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Avatar for Liberty Heating & Cooling
Liberty Heating & Cooling
4.8(
46
)
Central A/C - InstallCentral A/C - Service or RepairBoiler or Radiator Heating System - Install or Replace+25 more

Serving Webster Groves, MO and surrounding areas

Approved

Super Service Award Winner

In business since 2017

Emergency services offered

Warranties offered

"Liberty did a fantastic job identifying and rectifying airflow problems with our existing Hvac system that was installed less than two years ago by another company. They were punctual, responsive and incredibly knowledgeable. I highly recommend them."
A/C replacement
Additional Photos
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+10

4 neighbors recently requested a quote
Recommended by93%of homeowners
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Avatar for Hosack Plumbing Heating & Cooling
Hosack Plumbing Heating & Cooling
4.8(
344
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallCentral A/C - Service or Repair+47 more

Serving Webster Groves, MO and surrounding areas

Approved

In business since 2009

Warranties offered

Credit card accepted

"They were professional from the phone call to the installation. He had everything he needed to replace the hot water heater and proceeded. I would definitely recommend Hosack Plumbing."
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+2

Response time8 hrs
13 neighbors recently requested a quote
Recommended by93%of homeowners
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Avatar for Mechanical Climate Solutions, LLC
Mechanical Climate Solutions, LLC
4.9(
66
)
Central A/C - Service or RepairElectric Boiler or Radiator Heating System - RepairElectric Boiler or Radiator Heating System - Repair - For Business+11 more

Serving Webster Groves, MO and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"Customer service was very helpful, tech was able to quickly diagnose the problem and solve it. We signed up for their preventative service HVAC."
17 Seer 2 stage condensing unit.
Response time11 hrs
3 neighbors recently requested a quote
Recommended by98%of homeowners
Request Quote
Avatar for American Society of Heating & Cooling Specialists LLC
American Society of Heating & Cooling Specialists LLC
4.4(
17
)
Central A/C - Service or RepairCentral Air Cleaner - Repair or ServiceDucts & Vents - Install or Replace+19 more

Serving Webster Groves, MO and surrounding areas

Approved

In business since 1995

Free estimates

Emergency services offered

"Seems I was spending a ridiculous amount of money on electricity because my central unit was not operating correctly. I now have flowing cold air."
DOLLAR TREE COMMODE
DOLLAR TREE
DOLOLAR TREE
Patriot Club Member
Patriot Club Member

+9

6 neighbors recently requested a quote
Recommended by47%of homeowners
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Belking
5.0(
27
)
Central A/C - Service or RepairGas Furnace / Forced Air Heating System - RepairGas Furnace / Forced Air Heating System - Repair - For Business

Serving Webster Groves, MO and surrounding areas

Approved

In business since 1993

Free estimates

Emergency services offered

"Bernie went above and beyond to help us get our HVAC back up and running after a lightning strike damaged it. He saved us a ton of money and provided excellent service. He is also a excellent communicator and educator on all things heating and cooling."
Response time9 hrs
Recommended by80%of homeowners
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Heating and Air Conditioning questions, answered by experts

While most air conditioners can last between 10 and 20 years, they will only last this long (or longer) if properly taken care of. Routine maintenance and inspections help keep your AC unit running in tip-top shape but understanding what factors will decrease its lifespan will also help keep your unit running cool.

Some things that shorten your AC’s lifespan include:

  • Extreme outdoor conditions, like high humidity or extensive salt spray 

  • Improper installation

  • Extended run times, either by the unit being too small or the thermostat setting too low

  • Not performing required maintenance

It depends on the size of the space you’re cooling down. If you’re looking for the most affordable way to cool an entire house over a long period of time, then central air will be more cost-effective. But when it comes to cooling down a couple of rooms or one floor, a window unit may be the cheaper option, with both a lower cost to install and less energy used to run.

Yes, having mismatched evaporator and condenser coils in your AC system can lead to serious issues. For instance, it can result in higher monthly energy costs as the system runs longer to compensate for the mismatch. This mismatch can also put extra stress on the system, compromising its efficiency and longevity. 

Along with that, mismatched coils can lead to higher temperatures and humidity levels in the home. What’s more, using coils of different sizes may violate the manufacturer's warranty, as they are designed to work synergistically, and any mismatch could lead to repairs and system failure.

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 make the most out of your AC, consider implementing the following best practices: 

  • Choose the right size AC for your home to ensure your unit runs as efficiently as possible.

  • Choose a window with shade, as direct sunlight can cause your AC unit to overheat. 

  • Clean or replace the filter at least every two months. 

  • Inspect the AC’s fan and straighten it if necessary. 

  • Discontinue use immediately if you suspect a malfunction, as running the AC while broken can lead to significant issues. 

  • Turn off (or adjust the temperature) when you leave the house.

The Webster Groves, MO 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.

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