The Best GMC Repair in Niwot, CO
Compare the highest-rated gmc repair mechanics in Niwot, Colorado. All shops are licensed, insured, and verified through our rigorous screening process.
Niwot Automotive & Tire
A long-standing, family-owned shop known for its honest diagnostics and high-quality work. While not a dedicated GMC specialist, they have extensive experience with American-made trucks and SUVs, including routine service, brake and suspension work, and engine diagnostics for the Niwot community.
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Longmont Transmission & Automotive
This shop is a local authority on complex drivetrain issues. They are specifically recognized for their expertise with Allison transmissions, which are standard in GMC Duramax-powered trucks, and they also perform comprehensive diesel service, 4WD system repair, and towing system diagnostics.
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S & S Auto Service
A highly-rated, smaller shop with a reputation for meticulous work and exceptional customer service. Their technicians have advanced training and specific experience with GM vehicles, making them an excellent choice for complex electrical diagnostics, EcoTec engine issues, and general heavy-duty truck maintenance.
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Why These Are the Top GMC Repair Auto Repair Shops in Niwot
** The GMC repair market in Niwot itself is very limited, with only one or two general automotive shops serving the local population. For specialized services—particularly for Duramax diesel, Allison transmissions, and advanced Denali electronics—residents must look to neighboring Longmont, which offers a competitive and robust automotive service landscape. The market quality is high, with several shops boasting excellent reputations and technical certifications (including ASE and manufacturer-specific training). Competition is strong, which generally keeps pricing fair and incentivizes high-quality service. Typical pricing is in line with the Denver-Boulder metro area; expect labor rates between $130-$170 per hour. For major specialized work like an Allison transmission rebuild or Duramax injector replacement, costs can easily range from $2,500 to $6,000+. It is highly recommended that owners of newer or Denali-trim GMCs seek out shops with proven GM/ASE certifications and specific diagnostic tooling for the most accurate and reliable repairs.
High Ratings
4.7+ star average from verified customer reviews
Fully Licensed
All shops are properly licensed and insured
Proven Experience
10+ years average experience in the industry
Local Experts
Familiar with Niwot regulations and climate