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Top-Rated Central a/c installers in Lake Saint Louis - Updated Nov 2026

Avatar for Fresh Air Heating & Cooling
Fresh Air Heating & Cooling
4.8(
277
)
Central A/C - Install

Serving Lake Saint Louis, MO and surrounding areas

Approved

In business since 1947

Free estimates

Emergency services offered

"Great Experience. I was concerned about the 22 yr age of our air conditioner able to keep working and wonder if a long wait time to get a product shipped like refrigerators last year, I called for a quote and within a week it was installed and working! Installers worked tirelessly until their work was done, clean and neat!"
Fresh Air Van
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+2

14 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for On Time Experts
On Time Experts
4.8(
104
)
Central A/C - Install

Serving Lake Saint Louis, MO and surrounding areas

Approved

In business since 2006

Free estimates

Credit card accepted

When your home needs help, count on the team that does Whatever It Takes to make it right. On Time Experts Heating, Air & Plumbing, formerly Hosack Plumbing, Heating & Cooling, now brings together the experience of Hosack and Al-Don. We provide trusted heating, cooling, plumbing, and air and water quality services throughout O’Fallon and the Greater St. Louis area.

Recommended by97%of homeowners
Avatar for Schraer Heating and Air Conditioning
Schraer Heating and Air Conditioning
5.0(
8
)
Central A/C - Install

Serving Lake Saint Louis, MO and surrounding areas

Approved

In business since 1946

Free estimates

Emergency services offered

"The 3 Mustache Pledge! Schraer Heating and Cooling deserves every bit of praise I can give! I called them about a worrisome noise coming from my system — one that I could only describe through a few rather vague and comical sound effects. Despite my less-than-technical explanation, their technician quickly understood exactly what I meant, found the issue, and had it fixed in no time. Their professionalism, responsiveness, and ability to solve the problem so efficiently (and with good humor!) made the whole experience stress-free. I’m so grateful for their excellent service and expertise. Highly recommend Schraer Heating and Cooling to anyone looking for honest, skilled, and friendly professionals! I will definitely keep my maintenance agreement in full force and effect!"
Airlift rooftop unit
Duct installation
Geothermal job
Crane lift a rooftop unit
Finalize duct on a new construction

+3

Response time1 day
51 neighbors recently requested a quote
Avatar for Chowning Heating & Cooling
Chowning Heating & Cooling
4.2(
35
)
Central A/C - Install

Serving Lake Saint Louis, MO and surrounding areas

Approved

In business since 1998

Free estimates

Emergency services offered

"Excellant service. Prompt and on time. Hard workers and very friendly. They kept area clean and were professionals. Never were they irritated when i came around to check in them and the progress. They made sure we understood how to maintain and use the products. I HIGHLY recommend them! :)"
Response time2 days
Response rate100%
9 neighbors recently requested a quote
Avatar for Aire Serv of St. Louis
Aire Serv of St. Louis
5.0(
5
)
Central A/C - Install

Serving Lake Saint Louis, MO and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

Looking for reliable HVAC service in St. Louis? Aire Serv of St. Louis is your local expert for residential and commercial heating and cooling. From emergency AC repair during humid Missouri summers to furnace maintenance before the winter chill, our professional technicians are available to keep your home comfortable. We pride ourselves on transparent, upfront pricing, no overtime charges, and the "Done Right Promise." Whether you need a system replacement, duct cleaning, or a routine tune-up in Fenton, Webster Groves, or Kirkwood, we are the team you can trust. Breathe easy with Aire Serv—your comfort is our top priority. Call us today to schedule your service!

Logo
29 neighbors recently requested a quote
Avatar for Show-Me Comfort LLC
Show-Me Comfort LLC
5.0(
5
)
Central A/C - Install

Serving Lake Saint Louis, MO and surrounding areas

Approved

Hello, My Name is Johnathan Steele, Owner Operator of Show-Me Comfort Heating and Air Conditioning. I started my company with the intent to help and show transparency to my customers and to educate them to the best of my abilities on the system that keeps their Home Comfortable. Most Companies will come in to a house fix the issue then leave… That’s where we try and separate ourselves by finding the culprit, educating our customers on why it happened and how to prevent future problems. \n\nWe at Show-Me Comfort Heating and Air Conditioning take pride in our work, and if we wouldn’t do it in our house we wouldn’t do it to yours.

14 neighbors recently requested a quote
Avatar for Precision Climate Control
Precision Climate Control
5.0(
2
)
Central A/C - Install

Serving Lake Saint Louis, MO and surrounding areas

Approved

In business since 1993

Free estimates

Warranties offered

"Went with a quality install instead of local. Wanted a turn key solution and was pleased at the beginning and truly happy at the completion of the project. Everything was executed perfectly and safely. This unit hangs above aircraft and I have had no worries that it was installed with great care and understanding of the repercussions if anything was less than required. I would have zero hesitation on hiring Precision Climate Control and am already planning the next install in the STL area."
Project Photos
11 neighbors recently requested a quote
C-MAC Development, LLC
New to Angi
Central A/C - Install

Serving Lake Saint Louis, MO and surrounding areas

Approved

In business since 2012

Free estimates

Credit card accepted

C-MAC Development, LLC offers quality services to clients at reasonable prices. Our courteous staff has the professional tools and experience necessary to help with all your needs. We specialize in interior and exterior painting, kitchen and bath remodels, flooring, window installations, fences and decks. Call today to get in touch with our staff, and to learn more about what we have to offer!

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