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  • Written by
    Max Peterson
  • Fact Checked
  • Updated

Technical breakdowns can be a nightmare scenario for homeowners who need an air conditioner (AC) repair in St. Charles, especially in the summer when comfort is essential.

Whether you need routine maintenance, emergency repairs, or total AC replacement, we'll highlight the best AC repair in St. Charles so you can get your home back to a comfortable temperature quickly.

10 Best AC Repair Companies in St. Charles

Brands are algorithmically curated from a database of local service providers near you. We require a minimum number of Google reviews and average ratings for provider inclusion.

Top Rated Provider
Agers Heating & Air Conditioning Logo
Top Rated

Agers Heating & Air Conditioning

5/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 443 reviews


64 Boone Hills Dr, St Peters, MO 63376

(636) 422-5665

www.callagers.com
Jerry Kelly Heating & Air Conditioning Logo

Jerry Kelly Heating & Air Conditioning

5/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 5533 reviews


4631 N St Peters Pkwy, St Peters, MO 63304

(636) 757-8506

www.jerrykelly.com
No Problem Heating and Cooling Logo

No Problem Heating and Cooling

5/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 689 reviews


1565 Kisker Rd, St Peters, MO 63304

(636) 400-7776

npmheatingandcooling.com

Goldkamp Heating & Cooling

5/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 659 reviews


890 N Lafayette St, Florissant, MO 63031

(314) 839-3332

www.goldkamphvac.com
B & B Heating & Cooling Logo

B & B Heating & Cooling

5/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 811 reviews


1955 Washington St, Florissant, MO 63033

(314) 838-9800

bbheatingcooling.com
Faszold Heating and Cooling Logo

Faszold Heating and Cooling

5/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 827 reviews


1613 E Terra Ln, O'Fallon, MO 63366

(636) 735-7842

www.faszold.com
Assured Heating and Cooling Logo

Assured Heating and Cooling

4.7/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 209 reviews


400 N 5th St, St Charles, MO 63301

(314) 651-5969

assuredheatcool.com

Ozark Mechanical

4.7/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 50 reviews


2108 Parkway Dr, St Peters, MO 63376

(636) 317-1234

ozarkmechanical.com
Future Aire Heating & Air Conditioning Logo

Future Aire Heating & Air Conditioning

4.7/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 16 reviews


400 Chesterfield Center #400, Chesterfield, MO 63017

(636) 938-5290

www.futureaire.com/ac-repair-chesterf...
Averill Heating & Air Conditioning Logo

Averill Heating & Air Conditioning

4.6/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 243 reviews


10645 Liberty Ave, St. Louis, MO 63132

(314) 427-3825

averillheatcool.com

Facts about St. Charles

  • Average Max Temp Percentile:
    70%
  • August Average Max Temp:
    89°F
  • Climate Zone:
    Mixed Humid
  • Average Energy Cost:
    0.1/kWh
  • Median Year Houses Built:
    1984
  • Average Heat Waves per Year:
    8.15

Common Types of Air Conditioners

HVAC technicians have the expertise to service most air conditioner varieties, but knowing more about what you have can be beneficial. Below, we'll explain each of the common AC units.

  • Portable air conditioners: As the name implies, portable ACs don't require permanent installation or ductwork. Instead, they remove hot air through an exhaust hose connected to a window or nearby vent. They're preferred for apartments, condos, or individual rooms.
  • Central AC: These are the most common home air conditioners, offering consistent, precise temperature control. They feature a central unit that cools and purifies outside air and sends it through ducts to different rooms in your home.
  • Ductless mini-split: Ductless mini-split ACs have an exterior unit and one or more indoor units, with no ductwork required. They offer individual room temperature control, higher energy efficiency, and flexible installation options.
  • Window-mounted ACs: Window air conditioners are a popular choice for St. Charles apartments, condos, and townhomes. These compact, affordable units are designed for cooling single rooms and small spaces, and they fit snugly in a window frame or dedicated wall slot. Many window-mounted air conditioner users deploy their units without professional assistance, though technicians can still help with maintenance and repairs.
  • Split ACs: Split air conditioner systems have two main elements: one inside and one outside. They provide peaceful operation, greater energy efficiency, ductwork options, and more cooling capability versus mini-splits.

How to Choose Your St. Charles AC Repair Service

With the intense St. Charles heat, AC issues are top priority to fix. However, to get the best possible outcome, it's critical to thoroughly research different HVAC companies first. We recommend adhering to these steps as you prepare.

Confirm the Company Is Properly Licensed and Insured

While Missouri licenses some contractors at the state level, it does not for HVAC companies. Local governments can set their own requirements, and we recommend contacting your town hall or county building department for more information.

Many states and cities also require companies to carry liability insurance. Even if your community doesn't require it, we still recommend choosing an insured company. This will protect you if an accident happens or something gets damaged.

Read Customer Reviews

Read customer reviews on the Better Business Bureau (BBB) website for each company you're interested in. The BBB accredits businesses that handle complaints effectively and honor their warranties.

It's common for even the best AC repair companies to have both positive and negative reviews. Read each one carefully, and avoid a company if most reviewers had subpar experiences.

Compare Estimates

We recommend getting three or more estimates to find the best pricing and offerings. Get a written copy of each quote, and learn more about emergency repair availability, installer guarantees, manufacturer warranties and permitting fees.

Frequently Asked Questions about AC Repair in St. Charles

Sources

FEMA

To share feedback or ask a question about this article, send a note to our Reviews Team at reviewsteam@thisoldhousereviews.com.

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