An Experienced Auto Mechanic
You Can Count On
I'm Ron, owner and operator of Pro-Tec Auto. With 36 years of professional experience in the St. Louis area, I bring the experience and expertise you've been looking for. I specialize in repairs that require real skill — complex A/C systems, electrical diagnostics, engine work, brakes, suspension, and beyond. Every job is handled personally by me from start to finish. No apprentices, shortcuts, or compromises. I only use OEM and quality aftermarket parts from brands I've come to know over the years. At Pro-Tec, you'll always get the same experienced mechanic, quality workmanship and reliable parts. Every visit, every time.
Warranty
2 Yr / 24,000 Mile Warranty
Minimum 2 Year / 24,000 Mile Parts & Labor Warranty on most non-wear parts. That means you pay ZERO out of pocket for any repair that is covered under warranty!
Fair prices for everyone
No Coupon Needed
At Pro-Tec Auto, I don’t believe in "introductory specials" or hidden coupons. I offer my best, most honest price to each and every customer, every time you walk through the door.
Experience
Reviews
Mechanic
EVERYDAY PRICES
My everyday prices are better than most other shops "SALE PRICE"!
$125
Includes refrigerant level & pressure check, compressor belt inspection, recover, evacuate & recharge.
Price includes up to 1 lb of R134a refrigerant.
If additional diagnosis is required to locate a leak or other system fault, that will be quoted separately before any work is performed.
FREE
Includes: Complete brake system visual inspection and road test, inspect brake fluid level, inspect for brake fluid leaks. Inspect pads and/or shoes, rotors and/or drums, calipers, brake hoses and brake lines.
$75
Includes: Up to 5 qts full synthetic engine oil, new oil filter, labor and waste oil disposal.
My Services
From routine maintenance to complex diagnostics & repairs — I handle it all with 36 years of expertise.
Full A/C diagnostics, recharge, and repair. Complex electrical faults, wiring issues, and system failures that stump the less experienced — this is what I specialize in.
Professional-grade scan tools and info systems combined with nearly four decades of experience. I don't guess, I test. I find the real problem and fix it the right way.
Charging System Problems? Wiring Issues? Power Locks & Windows? Other Electrical Components not working properly? I've got you covered. There are some really good mechanics out there but quite a few of them are just not good with electrical diagnostics and repair.
From tune-ups to major engine repairs — timing chains & timing belts, head gaskets, valves jobs, water pumps, radiators, belts & hoses and everything in between. No job is too complex.
Shocks, struts, tie rods, wheel bearings, hub bearings, stabilizer links, control arms, ball joints and all steering & suspension components. I keep your vehicle safe, stable, and handling like it should.
Conventional and synthetic oil changes, filters, fluids, and full preventative maintenance to keep you on the road longer.
Complete brake system inspection and repair — pads, rotors, calipers, and brake fluid flush service. Your safety is always the priority.
Complete ABS brake system diagnose & repair. ABS problems can be tricky. I'm trickier.
The Jobs Other
Shops Won't Touch
A/C failures. Electrical gremlins. Check engine lights that stump the dealer. I've been solving these problems for nearly four decades — and I welcome the tough ones.
I have the equipment and experience to properly diagnose modern automotive electrical systems. This is exactly what I specialize in.
Modern vehicles are rolling computers. I use professional scan tools, information systems and decades of knowledge to pinpoint faults accurately — not guess at them.
I tell you exactly what your car needs and nothing it doesn't. My business is built on customers who trust me enough to keep coming back.
Why Customers
Choose Pro-Tec
This isn't a chain shop where your car gets passed from tech to tech. I personally work on every vehicle that comes through my shop.
I diagnose your car, explain what it needs in plain language, and give you a straight price. I fix what's broken and won't invent problems that don't exist.
Not just book knowledge, I have hands-on experience across many years, makes, models, and types of repair. When other shops give up, Pro-Tec Auto finds the answer.
I'm a local, independently owned shop serving St. Louis families. Your repeat business and referrals are how I continue to grown — and I take that seriously.
What My Customers Say
Trusted by St. Louis drivers for nearly four decades. Here's what they have to say.
"Will definitely be back. Ron was professional, knowledgeable, and honest. He went the extra mile to give me courtesy ride back home as it was too going to take a little bit to get parts/labor. Still quick service and got my car back before expected! Overall great value and experience."
"Great Guy, Had a vehicle issue that grew from small to large in the matter of a day, he didn’t fold, he worked with me to find the proper parts , even after the shop sold us a damage set up, no worries or concerns, Ron got everything in order and made sure it was Proper before leaving his Shop!"
"Recently, I was having an electrical issue affecting my vehicle's AC. I had taken it to other shops, spent lots of money, and the AC still wasn't working. Frustrated, I called Ron, explained my situation, and he asked me to drop my car off at his shop the next morning.
My car was an extreme case, so he had the vehicle most of the day. Ron basically rebuilt my whole fuse box to prevent me having to purchase a new one which would have been an added expense. It was so clear he has great passion about his work.
At the end of the day, my AC was working and he took the time to explain what the issue was, and explained What he did to fix it. The added bonus: he was, very affordable. I wish I had found him before going to the other places.
This is the shop you want for all your AC, electrical, and general automotive needs. I highly recommend Ron to anyone in need of automotive repairs."
"Excellent repair. Fast towing. Pays attention to details. Replaced many defective in my old 2002 Mercury Sable. My car drives great now."
"This is the mechanic you've been looking for. Very knowledgeable and explains everything that is going on. Will be the first call i make for any future needs."
"Very happy to have found this mechanic. Knowledgeable, very reasonable time frame for the repairs, excellent value, and more than happy to talk through why they are recommending the work that needs to get done."
Contact & Location
Conveniently located in South St. Louis. Give me a call/text or stop by — I'd love to help.
