H & M Transmission & Automotive
“Have been bringing our cars here for over four years and they've always been great.”
Best Transmission Repair Shops in Castle Rock, CO
15 mechanics listed · 6 in Castle Rock · 2 open weekends · 11 rated 4.5+
Data verified October 16, 2026
1 Stop Tire & Auto Service
“Great service, and they provided a fast installation on my new tires.”
Solar Automotive
“Solar Automotive took the time during my oil change to run diagnostics and determined it was the O2 sensor causing the issue.”
Titan Auto Tech European Specialists
“If in the Castle area or South Denver, highly recommended to come here for service, they can work on numerous European vehicles .”
High Plains Transmission
“Brad was helpful and did a good job diagnosing the issue with our Subaru.”
All Around Auto Care
“I called and they had me in and taken care of in just a couple hours.”
Listed for drivers in and around Castle Rock, CO, these 15 shops work on transmissions. What each one says about rebuilds, warranty terms and the brands it handles comes from its own website; ratings and quotes come from public reviews.
Area overview: Castle Rock, CO
Of the 15 mechanics we list here, 6 are in Castle Rock itself and 9 come from towns including Parker (4, 10 mi), Centennial (3, 15 mi) and Highlands Ranch (1, 13 mi). The mechanics on this page are rated from 4.2 to 5.0 across 3,064 reviews; 13 have 50 or more reviews and 11 are rated 4.5 or higher. When customers rate these mechanics on specific qualities, they most often praise professionalism (97%), quality (84%) and value (76%). The topics that come up most in reviews of the mechanics on this page are "honest", "communication" and "diagnosis". 2 are open on Saturdays. The services the mechanics on this page list most often on their websites are electrical (2), oil change (2), steering and suspension (2) and transmission repair (2). 6 list staff certifications (ASE) and 6 have a BBB rating of A or A+. 12 have ten or more years of experience, the longest 35 years. 1 offers emergency or roadside call-outs; 4 offer financing; 1 gives free estimates; 3 are family- or locally-owned and 3 list coupons or special offers. We count these figures across the mechanics on this page; distances are straight-line, and hours and prices change, so confirm the details with the mechanic before you visit.
Do any shops listed for Castle Rock offer financing?
4 of the 15 shops on this page say they offer financing. Transmission work is one of the larger repair bills a car can hand you, so terms are worth reading closely before you sign anything at the counter.
Next Auto Care
“We have multiple cars serviced at Next Auto care and have always been happy with the service, honesty and professionalism.”
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Hotshots Automotive
“The owner and his staff are very knowledgeable and up to date with their tools and tech to work on any vehicle.”
Parker Transmission & Gear
“Brian was one of the most kind and understanding people I've dealt with in a long time.”
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Extreme Auto Repair
“They figured out was going on with our suburban and fixed it in a timely manner.”
Advantage Auto Repair
“Frank asked a few questions and said that he didn't think that it was bad but would do a closer check if I could bring it back the next day.”
A&H Auto Care
“I was so thankful… I feel like had I taken it to somewhere else they would have up-charged me and/or said other things were wrong with it.”
Roadrunner Transmission and Diesel
“Randy is very knowledgeable with diesel trucks and they deliver quality work.”
Pride Auto Care
“This is the second time I've used them and impressed both times.”
Bighorn Automotive
“The guys at Bighorn Automotive know what they're doing and get the repairs done right.”
Why these companies made our list
What customers say about mechanics in and near Castle Rock
- “Brad was honest and upfront, and communicated with me twice during the week to give me updates.” — customer of High Plains Transmission
- “I need some work on my transmission. The customer service was great and I got my car back in no time.” — customer of H & M Transmission & Automotive
- “Very friendly and professional. I hope to not have a transmission problem again, but if I do, there is no doubt where I would bring my vehicle to have it taken care of.” — customer of Parker Transmission & Gear
- “Great shop! Jim rebuilt the transmission on my 2500, got it done quickly and for a good price, and provided excellent customer service on a number of fronts.” — customer of Roadrunner Transmission and Diesel
- “Best transmission shop around. I've worked with them for over 15 years great service and awesome warranties.” — customer of High Plains Transmission
Excerpts from public reviews of the mechanics listed on this page.
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