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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

"Yearly check up on my HVAC system. Found n fixed a problem. Applied senior discount. Prompt n courteous."
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
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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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Showing 1-10 of 411
Heating and Air Conditioning questions, answered by experts

The best way to compare HVAC quotes is getting a few detailed quotes from local companies with good reputations. Then, go over the quotes line by line. Protect yourself by insisting on in-person estimates that include equipment manufacturer names, model numbers, SEER ratings, amounts and numbers of materials, details of warranties on equipment and labor, and other specifics. 

Knowing the exact equipment and materials is the only way that you can fairly compare quotes. Quotes that are much lower than others can be a sign that the company isn’t providing the best quality service or materials.

If there’s a freon leak in your home’s AC unit, it will cause the system to work overtime to cool the house. That issue will result in higher energy bills and it will take much longer for cool air to disperse throughout the home. If your system has a freon leak during the summer, it can make hot days miserable. That’s why it’s important to hire an HVAC professional to resolve a freon leak as quickly as possible.

You will enjoy greater energy efficiency and save on your annual energy bills, with new, modern HVAC systems using 30% to 50% less energy than older models. Upgrading your HVAC system is also a great way to embrace new technology, such as smart thermostats, lighting, fan speed, and humidity from your phone or tablet.

While many states do not have specific licensing requirements for HVAC companies, your local city or county might. It's always a good idea to check local requirements online and use a tool like Angi’s contractor license lookup to confirm that the company you’re considering is licensed. Regardless of licensing, you should always ensure the company you hire is fully insured to avoid potential lawsuits if a technician is injured on your property. Additionally, it is recommended to check if the company holds third-party certifications, such as North American Technician Excellence (NATE) certification or R-410A certification, which qualifies them to work with HVAC refrigerants.

The cost of R32 refrigerant is about the same as the cost of R410A refrigerant, the most widely available type of refrigerant today. However, R32 systems use about 20% less refrigerant than R410A systems, making the refrigerant less expensive overall.

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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