Business Details
50+ Years
experience
Your Trusted Auto Repair Experts in St. Paul Park, MN
Duffy's Auto Service has been a trusted name in automotive repair since 1961, serving Saint Paul Park and surrounding communities. Our ASE-certified technicians combine decades of experience with cutting-edge technology to deliver reliable repairs for all makes and models. We maintain dealership-level standards while offering personalized service and competitive pricing. Our commitment to transparency includes digital vehicle inspections and clear communication about every repair. As a family-run business, we prioritize community involvement and customer satisfaction, supporting local events and organizations.Our facility features modern amenities like free shuttle service, loaner vehicles, and a 3-year/36,000-mile warranty on most services. We specialize in engine diagnostics, brake systems, timing belt replacements, and climate control maintenance. Our on-site gas station and convenience store provide added value for customers. With over 60 years of local expertise, weve built a reputation as a dealership alternative that prioritizes integrity and technical excellence.
Services
Engine Services
Brake Repair
Timing Belt Replacements
Oil Change
Computer Diagnostics
Electrical Service
Suspension Repair
A/C Repair
Details
- Year established: 1961
Highlights and features
- Our ASE-certified technicians deliver dealership-quality repairs at competitive prices
- Family-owned operation with 60+ years of continuous local service
- 3-year/36,000-mile warranty covers most repair services
- Modern facility with ADAS calibration and digital inspection technology
- Community-focused business supporting local events and organizations
Associations and certifications
- ASE
What people say
ASE-certified technicians
3-year warranty
Community involvement
Modern equipment
Transparent pricing
Services
Engine Services
Our ASE-certified technicians diagnose and repair all engine types using advanced diagnostic tools. We specialize in performance optimization and complex engine diagnostics for both gasoline and diesel vehicles. Our 3-year/36,000-mile warranty covers most engine repairs.
Brake Repair
Comprehensive brake system maintenance including pad replacement, rotor resurfacing, and hydraulic system diagnostics. We use manufacturer-grade components to ensure safety and longevity. Digital inspections document brake wear and recommend service intervals.
Timing Belt Replacements
Precision timing belt replacements for modern vehicles using OEM specifications. Our technicians follow strict maintenance schedules to prevent engine damage. We provide detailed explanations of belt condition during routine inspections.
Oil Change
Full-service oil changes using synthetic and conventional lubricants. Includes fluid level checks, filter replacement, and vehicle inspection. Our system tracks recommended maintenance intervals for your specific vehicle make and model.
Computer Diagnostics
Advanced computer diagnostics using multiple scan tools to identify vehicle system faults. We interpret diagnostic codes and perform functional tests to resolve check engine light issues and performance problems. Digital reports show system health metrics.
People
Jay Moser
Owner
Jay Moser has owned Duffys Auto Service since 2016, continuing its tradition of excellence. With early automotive experience from his father and industry insights from parts supplier work, he leads with technical expertise and community values.
Questions
What services does Duffy's Auto Service offer?
We provide complete automotive repair including engine diagnostics, brake systems, timing belts, oil changes, computer diagnostics, electrical systems, suspension, and AC repair. We also offer a car wash and gas station.
Are your technicians certified?
All our technicians are ASE-certified, maintaining the highest industry standards for automotive repair and diagnostic expertise.
Do you offer warranties on repairs?
Most services include a 3-year/36,000-mile warranty, demonstrating our confidence in repair quality and customer satisfaction.
What makes Duffy's different from dealerships?
We combine dealership-level technical expertise with personalized service and competitive pricing, without the dealership overhead costs.
Do you provide customer amenities?
Yes, we offer free shuttle service, loaner vehicles, digital vehicle inspections, and a waiting area with refreshments for your convenience.
