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24 mechanics listed · 6 in Castle Rock · 2 open weekends · 20 rated 4.5+
Data verified October 16, 2026
Listed for drivers in and around Castle Rock, CO, these 24 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.
Of the 24 mechanics we list here, 6 are in Castle Rock itself and 18 come from towns including Parker (6, 10 mi), Littleton (6, 17 mi) and Centennial (4, 15 mi). The mechanics on this page are rated from 4.2 to 5.0 across 4,774 reviews; 22 have 50 or more reviews and 20 are rated 4.5 or higher. When customers rate these mechanics on specific qualities, they most often praise professionalism (98%), quality (89%) and value (83%). The topics that come up most in reviews of the mechanics on this page are "honest", "diagnosis" and "fair". 2 are open on Saturdays. The services the mechanics on this page list most often on their websites are brake repair (3), oil change (3), alignments (2), electrical (2) and engine diagnostics (2). 9 list staff certifications (ASE) and 12 have a BBB rating of A or A+. 18 have ten or more years of experience, the longest 51 years. 1 offers emergency or roadside call-outs; 5 offer financing; 1 gives free estimates; 6 are family- or locally-owned and 6 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.
5 of the 24 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.
- “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
- “They are advocates in a world that seem to have forgotten great customer service as they provide advice and technical expertise second to none.” — customer of Kimmer Transmission & Gear
- “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
Excerpts from public reviews of the mechanics listed on this page.
