Engineered
precision.
Since 1920.
Boone County's trusted family-run garage. A century of mechanical know-how paired with modern diagnostic tools — for every car and truck on the road today.
Built for every job that rolls in.
Iowa Sector // Active
Routine Maintenance
Oil and filter service, fluid exchanges, multi-point inspections. The fastest way to extend your engine's life.
Tires & Brakes
Mount, balance, rotate, repair. Pads, rotors, calipers. Iowa roads demand proper tread and stopping power.
Engine & Transmission
Heavy-duty powertrain service for cars and trucks. From technical fluid work to complete unit installation.
Computer Diagnostics & Reflash
Modern cars are computers on wheels. We read codes, reprogram modules, and resolve stubborn check engine lights.
Quite possibly the oldest repair shop in Iowa.
Since 1920, Sternquist Garage and Tire has been a cornerstone of automotive excellence in Boone County — offering comprehensive service for every kind of vehicle that pulls into our bay.
From routine oil changes to intricate engine and transmission rebuilds, our team is dedicated to top-tier work and keeping you safely on the road.
What our neighbors say.
"This is the best place to get reliable, family-like service."
"Great customer service, quality work and treats us very good."
"I'm new in town and needed some work on my cars. Glad I found them."