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Weldon Spring Automotive
“They discovered the problem, made the corrections, and did not charge me for the unexpected work all while staying after hours in order for me to get my car back.”
Best Car AC Repair in St. Charles, MO
15 specialists listed · 9 in St. Charles · 4 open weekends · 11 rated 4.5+
Data verified October 19, 2026
Coffey Automotive
“They are trustworthy and never fail to fix my car in a timely manor.”
Roy's Garage LLC
“Been doing business with them for years, never have had a reason to complain.”
Aamco Transmissions & Total Car Care
“They 100% advocated for us to the manufacturer and absolutely went above and beyond to get us taken care of!”
Kar Tech
“We have been bringing our vehicles here for years, under previous ownership and current and have recommended them to countless family and friends!”
St Charles Foreign Car Inc
“Ed throughly explains things, doesn't upsell for things I don't need, and even has noticed things that were wrong that I didn't & fixed them for free or such a small amount.”
Listed for drivers in and around St. Charles, MO, these 15 shops list air conditioning work. What each one says about leak testing, recharging and which refrigerant it handles comes from its own website; ratings and quotes come from public reviews.
Area overview: St. Charles, MO
Of the 15 specialists we list here, 9 are in St. Charles itself and 6 come from towns including St. Peters (2, 5 mi), Hazelwood (1, 7 mi) and Maryland Heights (1, 7 mi). The specialists on this page are rated from 3.8 to 5.0 across 4,006 reviews; 12 have 50 or more reviews and 11 are rated 4.5 or higher. The topics that come up most in reviews of the specialists on this page are "price", "honest" and "diagnosis". 4 are open on Saturdays. The services the specialists on this page list most often on their websites are brake repair (2), engine repair (2) and oil changes (2). 4 list staff certifications (ASE) and 6 have a BBB rating of A or A+. 12 have ten or more years of experience, the longest 73 years. 4 offer financing; 1 gives free estimates; 6 are family- or locally-owned and 8 list coupons or special offers. We have a website on file for 12 of the specialists on this page; 9 publish a contact page; 3 list a public email and 6 take bookings online. We count these figures across the specialists on this page; distances are straight-line, and hours and prices change, so confirm the details with the specialist before you visit.
Can I book air conditioning work online with shops listed for St. Charles?
6 of the 15 shops on this page take bookings online. Book the diagnosis rather than the recharge. If you buy a recharge off a menu and the system has a leak, you have paid for refrigerant that will be gone before the season ends.
Old School Customs
“The countless jobs for me always on time work is always high-quality.”
Redwater Customs & Repair
“Amazing Place, they will be 1000% honest and fix what needs to be done!”
Missouri Auto
“No mess no "let me talk to the manager " just good folks doing the public right.”
Cintech Automotive Repair
“The owner fixed our big problem which we were dealing with our car for months, they know what they are doing very hardworking people to small elements.”
Auto World Tire & Auto
“I appreciate the friendliness of the staff and their willingness to discuss issues that my car was having.”
Jimmy's Automotive
“From brakes to suspension parts and doing my state inspections when they come due.”
Master's Touch Automobile
“They always fully explain what is going on and work to ensure everyone leaves satisfied.”
Northwest Tire & Auto
“I've gone back to them since too replaced the other two tires and will continue to give these guys my business.”
Gary's Automotive
“I needed a repair on a flat tire, and they were able to take it in even without and appointment, and even remounted it”
Why these companies made our list
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