Grimm's Service

Business Details

50+ Years

experience

Your Trusted Auto Repair Partner in Lake Oswego, Oregon

Grimm's Service has been a trusted name in automotive repair and maintenance since 1929, serving Lake Oswego and surrounding communities with unwavering commitment to quality and customer satisfaction. Founded by Fred Grimm and now led by third-generation owner Mark Grimm, our family-owned business combines decades of experience with ASE-certified technicians to deliver reliable, affordable solutions for all makes and models. We specialize in comprehensive services including oil changes, brake repair, DEQ diagnostics, pre-purchase inspections, and scheduled maintenance, backed by a one-year warranty on all repairs.

Our facility operates with transparency and integrity, offering convenient hours, free service reminders, and vehicle pickup/drop-off during fuel island hours. Recognized as an Oregon Department of Environmental Quality-approved facility, we maintain rigorous standards for environmental compliance while providing personalized service that prioritizes customer comfort and trust.

Services

Oil Changes Brake Repair Pre-Purchase Inspections Check Engine Light Diagnostics DEQ Repairs Tire Services Transmission Flush Electrical Repairs Suspension Work Tune-Ups

Details

Year established: 1929

Highlights and features

Family-owned operation with 95+ years of local automotive expertise
ASE-certified technicians providing manufacturer-recommended maintenance
Oregon DEQ-approved facility for emissions testing and repairs
Complimentary loaner vehicles and 24/7 vehicle drop-off access
Free service reminders and one-year repair warranty

Associations and certifications

Department of Environmental Quality of Oregon
ASE (Automotive Service Excellence)

Website

Update Listing

Services

Oil Changes

Our comprehensive oil change service includes premium lubricants, full-service safety inspections, and manufacturer-recommended maintenance checks. Technicians inspect brakes, belts, hoses, fluids, and tires while providing timely alerts about potential issues. Regular oil changes help maintain optimal engine performance and extend vehicle lifespan through proper lubrication and contamination prevention.

Brake Repair

We offer complete brake system diagnostics, maintenance, and repair services using high-quality components for lasting performance. Our ASE-certified technicians perform thorough inspections of brake pads, rotors, calipers, and hydraulic systems to ensure safety and reliability. Services include brake fluid exchange, rotor resurfacing, and complete system overhauls with warranty-backed parts and labor.

Pre-Purchase Inspections

Our detailed pre-purchase inspections evaluate vehicle condition, mechanical integrity, and maintenance history to inform buying decisions. Technicians conduct comprehensive under-hood assessments, test drives, and computer diagnostics while providing written reports with professional recommendations. This service helps identify hidden issues and potential repair costs before finalizing vehicle purchases.

Check Engine Light Diagnostics

Advanced diagnostic services identify check engine light triggers through computerized system scans and component testing. Our technicians interpret diagnostic trouble codes, perform visual inspections, and conduct road tests to pinpoint issues. We provide clear explanations of findings and cost-effective repair solutions for engine management systems and emissions controls.

DEQ Repairs

As an Oregon DEQ-certified facility, we specialize in emissions system diagnostics and repairs for state compliance. Services include smog checks, catalytic converter replacements, and oxygen sensor diagnostics. Our technicians ensure vehicles meet environmental standards while maintaining optimal engine performance through proper emissions control system maintenance.

People

Mark Grimm

Owner and Master Technician

Third-generation automotive expert with over 30 years of experience, Mark Grimm leads Grimm's Service with a commitment to quality repairs and customer satisfaction. He oversees technical operations while maintaining hands-on involvement in complex diagnostics.

Tim Day

Lead ASE Certified Master Technician

ASE-certified master technician with advanced specialization in automotive diagnostics and repair systems. Tim supervises technical staff while handling complex mechanical and electronic vehicle systems at Grimm's Service.

Tia Jacot

ASE Certified Service Consultant

Certified service consultant managing customer relations and service scheduling at Grimm's Service. Tia coordinates repair timelines and provides technical explanations to ensure client understanding and satisfaction.

Questions

What automotive services do you offer?

We provide comprehensive auto repair and maintenance including oil changes, brake repair, DEQ diagnostics, check engine light diagnostics, pre-purchase inspections, transmission services, and scheduled maintenance for all vehicle types.

Are you certified for Oregon DEQ repairs?

Yes, we're an Oregon Department of Environmental Quality-approved facility with certified technicians qualified to perform emissions testing and repairs for state compliance.

What are your service hours?

Our service department operates Monday-Friday 7:00 AM-5:30 PM, Saturday 7:00 AM-4:00 PM. Fuel island hours allow 24/7 vehicle drop-off access for added convenience.

Do you offer loaner vehicles?

Yes, we provide complimentary loaner vehicles for customers needing transportation during vehicle repairs at our Lake Oswego location.

Are your technicians certified?

All our mechanics hold ASE certifications, including master technicians with advanced diagnostic and repair specializations for modern automotive systems.

Do you service all vehicle types?

We work on domestic, import, and diesel vehicles of all makes and models, maintaining equipment and training to service both traditional and modern automotive technologies.

Reviews (7)

Write a Review

Amy M.

May 29, 2022 Report

I went to Grimm's get the DEQ emissions check on my car before work one day. They were so friendly and quick! After I paid my $20, the lady working there gave me a plant. So random but so nice! Full service

Kristi L.

Feb 05, 2022 Report

I have used Grimms on and off for 20 years for service. My car notified me I needed brake pads. I called 3 different places in town, Grimms pricing was in the middle. I chose Grimms to support our local business. Best choice I made. Easy drop off, clear communication. Honest approach (Tia called to tell me I had 30% left on front so I should only replace the rear - so my work was 50% less then what I expected). Offered a loaner, I didn't need it. Work was done on time. Thank you Grimms team!

Victoria S.

Jul 23, 2021 Report

The Team here at Grimm were all amazing. Every interaction was professional and prompt. Took my Focus ST here for AC issues. Found out my radiator fans stopped working. Got them replaced. Sitting in cold AC currently! It's amazing! Quick, professional, and Efficient. If you're looking for a trustworthy Shop, Grimms Service is it.

Colton S.

Jul 18, 2021 Report

Accurate diagnosis on a medium to difficult issue with a high mileage European vehicle. Problem was isolated quickly and a written quote was provided to complete the more extensive repairs, all within a very reasonable amount of time. Very high quality old fashioned service overall, it is certainly appreciated. Now I am back on the road with a high level of confidence, departing from the South Shore of Lake Oswego. Thank you Grimm's Service!

Ryan H. Dadinator

Feb 05, 2021 Report

Not super stoked to see both employees today (2pm 1/10/2021) inside the shop not wearing face coverings/masks. I know they're just high school kids, but they need to wear masks for everyone's safety.

Jeff Israel

Dec 01, 2020 Report

A family business smaller than the large motor car maintenance companies but makes up for it with personality, knowledge, one on one care, and no run arounds. Fair and honest pricing. Great people!

Bill McMillen

May 19, 2020 Report

Over 25 years of consistently excellent service and attention to detail. Grimm's Service is without a doubt the best automotive care in Lake Oswego and SW Portland.