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24 technicians listed · 5 in Thornton · 4 open weekends · 21 rated 4.5+
Of the 24 technicians we list here, 5 are in Thornton itself and 19 come from towns including Broomfield (4, 6 mi), Arvada (4, 13 mi) and Boulder (3, 18 mi). The technicians on this page are rated from 4.0 to 5.0 across 6,884 reviews; 22 have 50 or more reviews and 21 are rated 4.5 or higher. When customers rate these technicians on specific qualities, they most often praise professionalism (100%), quality (91%) and value (79%). 4 are open on Saturdays and 1 on Sundays. The services the technicians on this page list most often on their websites are oil change (5), brake services (3), diagnostics (3), pre-purchase inspection (3) and steering and suspension (3). 9 list staff certifications (ASE) and 20 have a BBB rating of A or A+. Domain records put 18 websites of the technicians on this page at ten or more years old; the oldest dates from 2000. 1 offers emergency or roadside call-outs; 7 offer financing; 1 gives free estimates; 12 are family- or locally-owned and 16 list coupons or special offers. We count these figures across the technicians on this page; distances are straight-line, and hours and prices change, so confirm the details with the technician before you visit.
Data verified October 9, 2026
Listed for drivers in and around Thornton, CO, these 24 shops repair, rebuild and replace engines. What each one says about machine work, warranty terms and the engines it supplies comes from its own website; ratings and quotes come from public reviews.
5 of the 24 shops are in Thornton itself and the rest come from other towns within 20 mi, shown with their own city. An engine job means leaving the car for days, so the drive happens once at each end rather than every morning.
