Service
Automotive Diagnostics
Check-engine lights, drivability problems, intermittent issues, electrical faults and complex troubleshooting with modern scan-tool data.
Learn about Automotive Diagnostics →Longmont & surrounding areas automotive service
Expertise meets passion. Honesty comes standard.
Gas and diesel automotive service built around careful diagnosis, straight answers and work that makes sense for you and your vehicle.
Diagnostic-first approachModern scan tools plus hands-on testing.
Gas & diesel serviceMaintenance through advanced mechanical work.
Straightforward recommendationsFocused on what the vehicle actually needs.
Full-service repair
From everyday maintenance to the hard problems.
McKay's Garage works on the systems that keep your vehicle running, stopping, steering and shifting the way it should. For the complicated issues, advanced diagnostics help narrow the cause before money gets spent on the wrong repair.
Service
Diesel Service & Repair
Maintenance, diagnostics, repair and performance-focused service for diesel pickups and other light-duty diesel vehicles.
Learn about Diesel Service & Repair →Service
Transmission & Drivetrain
Transmission service and rebuild work plus differential inspection, service and repair for gas and diesel vehicles.
Learn about Transmission & Drivetrain →Service
Suspension & Steering
Shocks, struts, control arms, ball joints, tie rods, wheel bearings, front-end components and lift-kit related work.
Learn about Suspension & Steering →Service
Engine Repair & Rebuilds
From tune-ups and carburetor work to deeper engine repair and rebuilds for high-mileage or problem vehicles.
Learn about Engine Repair & Rebuilds →Service
Maintenance & Oil Service
Routine oil changes, tune-ups, fluid checks and preventive service that help keep small problems from becoming expensive ones.
Learn about Maintenance & Oil Service →A warning light should start a diagnosis, not a parts cannon.
Modern scan data is useful, but codes are clues. McKay’s Garage combines scan-tool information with real testing to find the cause before recommending the repair.
Why McKay's Garage
A mechanic who would rather earn your trust than sell you something.
The driving force behind the shop is a genuine love for problem-solving and a desire to change the way people think about dealing with mechanics.
Transparency and honesty are at the core of the approach. The focus isn't on selling repairs. It's on explaining what was found, what matters now, what can wait, and giving Longmont-area drivers reliable service they can feel good about.
- Automotive experience dating back to 2002
- Experience in dealerships, family-run shops and a high-performance engine shop
- Associate Degree in Diesel Technology
- Continued training across vehicle systems
Local shop, wide service area
Based in Longmont. Worth the drive from around Northern Colorado.
Customers visit McKay's Garage from Longmont and surrounding communities for gas and diesel service, advanced troubleshooting and repair.
LongmontMeadBerthoudLovelandFort CollinsFirestoneFrederickFort Lupton
We honor those who serve. First responders, emergency medicine professionals and military customers receive an exclusive discount as a thank-you for their service.
From the garage
Useful automotive advice without the sales pitch.
Maintenance tips, diagnostic explanations and practical information for Colorado drivers.
Brake Warning Signs: When to Schedule an Inspection in Longmont
Squealing, grinding, vibration and a soft pedal mean different things. Learn what brake symptoms can tell you and when to stop driving.
Read article →Lift Kits, Suspension Geometry and Tire Wear: What Changes After You Raise a Truck
Lifting a truck changes more than appearance. Learn how suspension geometry, steering angles and tire wear should be considered after installation.
Read article →Prepare Your Diesel Truck for a Colorado Winter Before the First Hard Freeze
A practical pre-winter diesel checklist for batteries, fuel, filters, coolant, oil, glow-plug systems and tires.
Read article →Ready when you are
Request an appointment.
Send the vehicle and symptom details. Bobby will review the request and follow up to confirm the appointment.
Phone720-614-3940
Email[email protected]
Location3600 Stagecoach Rd Unit B, Longmont, CO 80504
HoursMonday–Friday, 8am–5pm
Appointment request
Tell us about the vehicle.
This requests a time with the shop. We'll follow up to confirm availability and any details we need before the visit.