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Verified Reviews for Air Conditioning pros in Olivette, MO

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

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

Last update on July 10, 2026

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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 RepairCentral A/C - Install - For Business+3 more

Serving Olivette, MO and surrounding areas

Approved

In business since 1947

Free estimates

Emergency services offered

"Great customer service when I called for service. Expert technician that diagnosed the problem and quickly repaired my AC."
Fresh Air Van
Additional Photos
Additional Photos
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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 RepairDuctless Mini-split A/C - Install or Replace

Serving Olivette, MO and surrounding areas

Approved

In business since 2003

Free estimates

Emergency services offered

"I recently had a positive experience with Dunn Service regarding boiler issues, and I wanted to share my thoughts. The technician arrived promptly at the scheduled time and approached their tasks with expertise and precision, ensuring that all problems were thoroughly addressed. The pricing for their professional services was reasonable. Overall, based on my experience with Dunn Service—characterized by politeness, professionalism, and fair pricing—I would highly recommend their services to anyone facing heating and air conditioning issues."
Additional Photos
Response time2 days
30 neighbors recently requested a quote
Recommended by89%of homeowners
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Avatar for SmartHouse Heating & Cooling
SmartHouse Heating & Cooling
4.7(
593
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+3 more

Serving Olivette, MO and surrounding areas

Approved

In business since 1947

Free estimates

Emergency services offered

"We found SmartHouse almost by accident while looking for solutions to what turned out to be botched previous AC installation by a much bigger and more established company who we had trusted to do a decent job. Instead we ended up with a system that wouldn't cool the house. Smarthouse first correctly diagnosed the problem, then fixed it, and advised us on how best to heat and cool our 100+ old house. We now have a service contract with them for regular maintenance and they recently installed a mini-split for us. Their techs are great. Just the sort of people we would feel comfortable leaving alone in the house to finish a job if necessary."
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
2 neighbors recently requested a quote
Recommended by91%of homeowners
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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 ReplaceCentral A/C - Install - For Business+3 more

Serving Olivette, 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 Anton's Plumbing, Heating/Cooling & Energy Experts
Anton's Plumbing, Heating/Cooling & Energy Experts
4.7(
516
)
Central A/C - InstallCentral A/C - Service or RepairCentral A/C - Install - For Business+2 more

Serving Olivette, MO and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1979

Free estimates

Emergency services offered

"I need a new air conditioning and furnace and they will take care of it"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+18

Response time12 hrs
Response rate100%
18 neighbors recently requested a quote
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Avatar for Hosack Plumbing Heating & Cooling
Hosack Plumbing Heating & Cooling
4.8(
345
)
Central A/C - InstallCentral A/C - Service or RepairCentral A/C - Install - For Business+3 more

Serving Olivette, MO and surrounding areas

Approved

In business since 2009

Warranties offered

Credit card accepted

"The gentleman that came out was professional. He gave me an estimate for the gas line and adjusted the water heater."
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+2

Response time8 hrs
14 neighbors recently requested a quote
Recommended by93%of homeowners
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Avatar for American Society of Heating & Cooling Specialists LLC
American Society of Heating & Cooling Specialists LLC
4.5(
21
)
Central A/C - Service or RepairCentral A/C - Service or Repair - For Business

Serving Olivette, 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 by38%of homeowners
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Perfect Air
4.7(
6
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+3 more

Serving Olivette, MO and surrounding areas

Approved

In business since 1982

Emergency services offered

Warranties offered

Founded in 1982. Team members that are drug tested and background checked insuring that the people in your home are safe. We specialize in repairing and replacing residential heating and air conditioning systems. "Fixed Right or It's Free"\nTechs available Sat & Sun call for appointment.

1 neighbors recently requested a quote
Recommended by100%of homeowners
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Avatar for Hoffmann Brothers
Hoffmann Brothers
4.5(
43
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+1 more

Serving Olivette, MO and surrounding areas

Approved

In business since 2000

Emergency services offered

Credit card accepted

"Had new hvac, furnace, and hwh installed. Furnace had a couple of air leaks between a coil and furnace which I fixed myself. Hvac was spot on. Hwh failed first inspection, but was corrected in same day. For the premium price paid, these issues should not happen. Quality 4.5 because of these issues, same goes for value. Customer service is very good. They are very professional, work looks very good, clean worksite afterwards. I would recommend, but don't think about negotiating price with them. Their labor is very high."
Installation
Installation
Heat Pump
Heat Pump
Furnace

+14

Recommended by97%of homeowners
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Showing 1-10 of 272
Air Conditioning questions, answered by experts

No. Your furnace does not run your air conditioner. Both units use the same system of ductwork to move conditioned air throughout your home, but you can have a furnace without having an air conditioner and vice versa. Furnaces are only for heating your home. You can buy a system that does both, however, like a split system or a heat pump (yes, heat pumps cool, too).

Yes, HVAC zoning is generally considered worth the investment by both experts and homeowners. Zoned systems offer significant benefits in convenience, efficiency, and comfort by allowing you to set different temperatures for various rooms or 'zones' in your house. This ability to heat and cool only the spaces you're using leads to energy savings and lower utility bills. Zoned systems are especially effective in multi-level homes that experience temperature fluctuations, but even smaller homes can benefit from the ability to adjust temperatures more quickly. While the up-front installation cost can be high, many find it's a worthwhile long-term investment, particularly for those who plan to stay in their home for a while.

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.

AC evaporator coils should be cleaned at least once per year to keep your unit in good condition. For optimal performance, consider cleaning them twice a year—once before and once after the main cooling season. More frequent cleanings may be necessary for older systems, units with performance issues, or those in climates with high levels of humidity, dust, and dirt.

If you have central air conditioning, it’s fine to run your AC all day if that’s what you want—as long as the AC unit is in good condition. But if your AC runs constantly when you don’t want it to, there may be a problem with your system (like the ones we’ve mentioned above). Window AC units and wall air conditioners aren’t as powerful as central AC, so you should only run those kinds of air conditioners for eight to 12 hours at a time.

The Olivette, MO homeowners’ guide to air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.

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