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St. Louis' trusted auto repair shop since 1974.

Roy's Transmissions: Where honesty drives quality. Your car and your trust matter to us.

Master mechanic in St. Louis in auto repair shop


Committed to excellence

Transmission Services

Get your transmission repaired or replaced by our experienced technicians. We offer a wide range of transmission services, including:

  • Transmission fluid exchange

  • Transmission rebuilds

  • Transmission swaps

  • Transmission diagnostics

Safety and Emissions

Keep your car safe and emissions-compliant with our expert safety and emissions services. We offer a wide range of services, including:

  • Brake repairs and replacements

  • Tire rotations and alignments

  • Engine diagnostics

  • Emission inspections

Oil Changes

Get your oil changed regularly to keep your car running smoothly and efficiently. We offer quick and easy oil changes, using high-quality oil and filters.


Get your brakes repaired or replaced by our experienced technicians. We offer a wide range of brake services, including:

  • Brake pad replacements

  • Brake rotor replacements

  • Brake fluid flushes


Keep your car running at its best with a regular tune-up. We'll inspect and adjust your engine, replace worn parts, and top off your fluids.

Engine Replacement

If your engine is damaged beyond repair, we can replace it with a rebuilt or remanufactured engine. We offer a wide range of engines to choose from, so you can find the perfect one for your car.


About our Business

Picture of physical location of Roy's Transmissions in St. Louis

Our Story:

Roy De-Bose founded Roy's Transmissions with a passion for cars and a drive to serve his community. After learning the trade from his father and honing his skills at Chrysler, Roy started his own shop, determined to offer honest service at fair prices. Over the decades, Roy's commitment to quality and customer care has made us a St. Louis institution. We take pride in getting you back on the road quickly – and keeping you coming back for years to come.

Our Mission:

To be the St. Louis community's reliable source for expert, fair-priced auto repair.

Our Core Values:

  • Honesty: Clear communication, transparent pricing

  • Expertise: Skilled team, commitment to staying up-to-date

  • Customer-First: Friendly service, going the extra mile to build trust


How we work

We know car trouble is stressful. That's why we go above and beyond to make your experience at Roy's as easy as possible. From explaining your options clearly to providing convenient scheduling and fair estimates, we're here to get you back on the road worry-free. You're not just a customer; you're part of the Roy's Transmissions family.


Why choose us

Decades of Expertise

Roy's Transmissions isn't just a shop; it's a St. Louis institution. Since 1974, we've fixed countless cars, building a reputation for transmission expertise and all-around quality auto care.  When you choose Roy's, you're choosing experience you can trust.

Honest Service, Fair Prices

Car trouble is stressful enough without worrying about hidden costs or unnecessary repairs.  At Roy's, we believe in transparent pricing and clear communication.  We'll explain your options, work within your budget, and never pressure you into services you don't need.

We Put Customers First

We're not a big chain where you're just a number. Roy's is a family-run business, and we treat our customers like our extended family. From hassle-free appointments to friendly service that goes the extra mile, we're here to make your auto repair experience as easy as possible.


Your questions, answered

  • Do you offer warranties on your repairs?
    Yes, we offer a 30-day warranty on parts and labor for most repairs, giving you peace of mind.
  • Can you provide transportation while my car is being worked on?
    While we don't have loaner cars, we can help arrange a ride-share or recommend local rental agencies if needed.
  • Do you work on specific car types or brands?
    We specialize in transmissions for all of the most common makes and models, and also provide general auto services .
  • What forms of payment do you accept?
    We accept cash, all major credit/debit cards, and offer financing options for qualified customers.
  • Can I get a same-day appointment?
    While we try to accommodate urgent needs, it's best to call or book online as early as possible to secure your preferred appointment time.
  • Do you offer towing services?
    We can recommend trusted towing partners in the area if you're unable to bring your vehicle to the shop.
  • How do I add a new question & answer?
    To add a new FAQ follow these steps: 1. Manage FAQs from your site dashboard or in the Editor 2. Add a new question & answer 3. Assign your FAQ to a category 4. Save and publish. You can always come back and edit your FAQs.
  • Can I insert an image, video, or GIF in my FAQ?
    Yes. To add media follow these steps: 1. Manage FAQs from your site dashboard or in the Editor 2. Create a new FAQ or edit an existing one 3. From the answer text box click on the video, image or GIF icon 4. Add media from your library and save.
  • How do I edit or remove the 'Frequently Asked Questions' title?
    You can edit the title from the FAQ 'Settings' tab in the Editor. To remove the title from your mobile app go to the 'Site & App' tab in your Owner's app and customize.
A professional Black woman auto repair customer who looks to ask questions and get her questions answered


What people are saying

Roy's fixed my transmission when two other shops said it was a lost cause. They saved me thousands and got me back on the road fast. I'll never go anywhere else!

Marcus G.

As a single mom, finding honest car repairs is stressful. Roy's team always explains everything clearly and treats me fairly. Such a relief!

Naomi C.

Been bringing my cars to Roy's for 15 years. Top-notch work, and they stand behind the repairs. True St. Louis pros." -

Mike T.

in Touch

Contact us

Honest Service, Fair Prices

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