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TRUSTED BY FESTUS, MO HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon65
    Verified heating and air conditioning services reviews

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

*The Angi rating for Heating And Air Conditioning Service companies in Festus, 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 Festus, 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 January 16, 2026

Find Heating and air conditioning pros in Festus

Avatar for Mechanical Climate Solutions, LLC
Mechanical Climate Solutions, LLC
4.9(
66
)

Serving Festus, MO and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"MCS techs were very courteous. New HVAC system install went well. They explained all their work professionally. Also found a crack in the flue and replaced which was overlooked by a previous contractor. They are very thorough and reasonable. I highly recommend MCS."
17 Seer 2 stage condensing unit.
Response time11 hrs
2 neighbors recently requested a quote
Recommended by98%of homeowners
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Avatar for Liberty Heating & Cooling
Liberty Heating & Cooling
4.8(
46
)

Serving Festus, MO and surrounding areas

Approved

Super Service Award Winner

In business since 2017

Emergency services offered

Warranties offered

"Installed a new gas water heater. Was very knowledgeable and got it done. Great job, thank you Sam."
A/C replacement
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+10

6 neighbors recently requested a quote
Recommended by93%of homeowners
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Avatar for Comfortable Carla's, LLC
Comfortable Carla's, LLC
5.0(
18
)

Serving Festus, MO and surrounding areas

Approved

In business since 1954

Free estimates

Emergency services offered

"Really helped me out in a bind, even came and installed on a Saturday to make sure i had air!!!! Awesome company"
Double System Install
Double System Install
Double System Install
Furnace Replacement
Furnace Replacement

+1

Response time4 hrs
Response rate100%
16 neighbors recently requested a quote
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Avatar for RDI CONTRACTORS LLC
RDI CONTRACTORS LLC
5.0(
7
)

Serving Festus, MO and surrounding areas

Approved

In business since 2025

Emergency services offered

Credit card accepted

"Austin was on time, had the unit running in no time, and was able to fix an issue when other companies told me I needed to replace my unit. Great service!"
Response time4 hrs
1 neighbors recently requested a quote
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Avatar for Willys Handyman Service
Willys Handyman Service
4.5(
17
)

Serving Festus, MO and surrounding areas

Approved

Super Service Award Winner

In business since 1985

Customers say: True professional

"I was completely happy with all the work done. Willy replaced locksets, repaired door plumbs, painted, and replaced a toilet."
Handymen Project
Handicap ramp
Handymen Project
Handicap ramp
Additional Photos

+2

Response time2 days
Response rate86%
4 neighbors recently requested a quote
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Avatar for VMK Remodeling
VMK Remodeling
4.3(
18
)

Serving Festus, MO and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Warranties offered

"Vinc and his crew at VMK did and excellent job and I highly recommend there services ! Dave Caputo"
Response time2 days
Response rate90%
75 neighbors recently requested a quote
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Heating and Air Conditioning questions, answered by experts

You may be able to clean mold from your air conditioner in some cases. If the mold growth only takes up a small area, you can use either vinegar or bleach mixed with water to remove it. Larger areas of mold should be left to the professionals, though. It's also a good idea to leave mold removal to the pros if you are sensitive to mold or have asthma. 

The $5,000 rule for HVAC systems helps homeowners decide whether to repair or replace an AC or furnace. Take the quote for the HVAC repair cost and multiply that by the age of the HVAC system. If the total is higher than $5,000, it’s more cost-effective to replace the system. If the total is lower than $5,000, consider repairing the system.

A 3-ton AC unit is probably too big for a home that’s 1,200 square feet. If you have a 1,200-square-foot home, you likely need a unit that’s somewhere around 1.9 and 2 tons. An AC unit that’s too large will be really inefficient and cost you a lot of extra money on your bills. 

AC drip pans last five to 20 years, depending on the material. Plastic AC drip pans last five to 10 years, while metal pans can last over 10 years. Plastic AC drip pans are vulnerable to cracking in response to temperature changes. Metal drip pans are prone to rusting over time, which can also lead to leaks.

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.

The Festus, 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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