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Mountain View Automotive
“I was driving home from Denver to Fort Collins when my car stopped accelerating properly in the middle of I25 so I took my car in to the closest mechanic shop possible which ended up being here.”
Best Transmission Repair Shops in Thornton, CO
24 mechanics listed · 6 in Thornton · 5 open weekends · 21 rated 4.5+ · 1 shows a license
Data verified October 16, 2026
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Alternative Auto Care
- Inspection
- Toyota
- Honda Civic
“We were concerned that we maybe shouldn't be driving the vehicle and being that this was on a Saturday I made the decision to take it to Firestone to get a “free engine diagnostic” to see if it was just throwing a false code.”
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Service Street Auto Repair
“The AC unit and Clutch that THEY put in almost 5 years ago, still had almost $375 of its warranty left, but I was told if they replaced the AC under warranty, that the new AC would not have any warranty.”
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G&G Automotive Services
- Mechanic
- Price
“Told him my situation he said to bring it down ill get the bolt out for 40$ I was like really so I took it down there and sure enough he got the bolt out it cost me 80 dollars cause the bolt head was damaged but 80 dollars compared to 1000 is excelle...”
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Brake's Auto
- Mechanic
- Patient
- Fair
“Matt is a very conscientious, articulate, and skilled young man!”
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Bell Automotive LLC
- Diagnosis
“They fixed the tie rods and wheel bearings on my F250, and even ate the cost of several hours labor when a the cost saving durabad part turned out to be faulty.”
Listed for drivers in and around Thornton, 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.
Area overview: Thornton, CO
Of the 24 mechanics we list here, 6 are in Thornton itself and 18 come from towns including Broomfield (4, 6 mi), Denver (4, 11 mi) and Arvada (2, 13 mi). The mechanics on this page are rated from 4.3 to 5.0 across 9,031 reviews; 21 have 50 or more reviews and 21 are rated 4.5 or higher. When customers rate these mechanics on specific qualities, they most often praise professionalism (96%), quality (89%) and value (70%). The topics that come up most in reviews of the mechanics on this page are "diagnosis", "communication" and "honest". 5 are open on Saturdays. The services the mechanics on this page list most often on their websites are oil changes (6), brakes (4), brake services (3), check engine light (3) and steering and suspension (3). 1 shows a license on its website; 13 list staff certifications (ASE) and 19 have a BBB rating of A or A+. 18 have ten or more years of experience, the longest 73 years. 1 offers emergency or roadside call-outs; 6 offer financing; 1 gives free estimates; 9 are family- or locally-owned and 14 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 Thornton offer financing?
6 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.
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Colorado Fleetworks
“After going back and forth with two different dealerships to fix an issue for 5 MONTHS with NO resolve, I came to Micky and his guys and was back on the road in less than a day!”
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German Motors
- Experts
- Brake
- Cost
“Is neat as a pin, the staff also is neat, organized, knowledgeable, very friendly and my services are always done on time and at or less than estimates.”
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Foreign Auto Specialist
- Engine
- Work
- Charged
“Many places could not get me in right away but Foreign Auto Specialists got me in first thing the next morning and one day later, I had a completely new AC system.”
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Dave's Automotive Specialists
- Oil
- Charge
- Fair
“I have had a lot of bad experiences with people who take advantage of my since I dont know a lot about cars but, they were so open and honest with me about what was wrong and even showed me the broken piece from out of my car.”
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Accountable Auto Care
- Inspection
- Dealership
- Efficient
“Hard to find repair shops to trust and Accountable is great to have on my shortlist when I need repairs and don't want to worry that I'm getting a fast one pulled on me.”
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Motorized Solutions
- Truck
- Feel
- Job
“Nestled in the heart of our beloved neighborhood, this gem of a garage isn't just a repair shop—it's a haven for distressed vehicles and their owners alike.”
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Colorado Engine
- Engine Swap
- Pay
- Diagnosis
“Got a new engine with them my car drives like an angel really satisfied with the work, customer service is great too nice people really nice talking to them and getting my car fixed”
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Mancinelli's Auto Repair Center
- The Future
- Upsell
- Leak
“Jenn even inquired about the kind of noise the car was making (which I had indicated) and that showed the level of professionalism as to how well they prepare for a service.”
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Salta Service & Performance
- Oil
- Questions
- Work
“After searching online through countless websites for my cars new shop I decided on Salta and after contacting them about my car I had it towed in to the Audi/VW specialist shop for inspection.”
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AC Transmission Denver and General Auto Repair
“I found these guys based on reviews and the fact they specialized in transmissions, I had been to two other shops about this particular problem and didn't like their quotes for time or cost.”
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Fine Tuned Auto
“Stayed true to their word 2 separate times during our repair experience (regarding diagnostic fee and overall repair cost despite not having it in writing).”
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5th Gear Automotive
- Fair
- Fluid
- Emissions
“The guys at 5th Gear got me in same day even though I was a new customer, were so friendly and gave me a no pressure print out analysis about how my car could run better.”
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Bending Wrenches Auto Repair
“They have continued to monitor the past, present, and future maintenance required for our 2001 Odyssey (224000 miles; original engine with a rebuilt transmission).”
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Sheridan Auto Tech
- Inspection
- Ford
- Needs
“Sheridan auto Tech was very pleasant to work with straightforward, very reasonable pricing ands Isaiah was very knowledgeable and pleasant to work with!”
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Seyfer Automotive
- Mechanic
- Money
- Truck
“Seyfer is great because unlike some shops, they take the time and have the skills to research and diagnose the problem, which leads to a more thorough and sometimes less expensive solution since they notice details.”
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Cooper's Automotive
“They made sure I had a loaner car when I was worried about getting to work, they communicate everything well, and they're honest about what they think my car needs.”
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Westminster Auto Clinic
- Truck
- Quality
- Vehicle
“Easily one of the better mechanics I've gone to in Colorado, from dropping off my vehicle all the way to pickup I felt like I left my vehicle in good hands.”
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Chase Automotive
“Senior generation vs younger generation, I am very please to post, Chase automotive shop, and it's new owner, Jason, are keeping, loyalty ,fair pricing and five star service, alive and well.”
Transmission Repair Services in Thornton, CO Cost Estimates
Minimum cost
$959
Maximum cost
$4192
National Average
$1677
Avg Per Hour Rates
$154
$1318
$3354
Typical price range is based on 347 cost profiles
Why these companies made our list
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