Welcome to On Site Auto Repair!
Gallery
- Real Results: View photos of our team in action.
- Quality Work: See the repairs that earned us 5-star reviews.
- Customer Trust: Trusted across Santa Rosa and Sonoma County.
Serving Santa Rosa Since 2011
★★★★★ 4.9/5 (117 Google Reviews)
Auto Repair Brand
Toyota Repair
Honda Repair
Ford Repair
Chevrolet Repair
Nissan Repair
Mercedes Repair
Lexus Repair
Acura Repair
Infiniti Repair
Kia Repair
Hyundai Repair
Subaru Repair
Mazda Repair
Volkswagen Repair
Contact Info
Location
363 W 9th St B & C
Santa Rosa, CA 95401
Phone
707-326-8655
Hours
- Monday-Thursday: 7:30 AM - 4:30 PM
- Friday: 7:30 AM - 12:00 PM
- Saturday: Closed
- Sunday: Closed
New Customer Special:
$25 off your first service over $100. New customers only. One per household. Mention this offer when you call. Valid through December 31, 2026.
Oil Change Special:
Full synthetic oil change for $69.99. Includes up to 5 quarts of oil and a new oil filter. Most cars and light trucks. Valid through December 31, 2026.
Free Brake Inspection
Free brake inspection. We check pads, rotors, fluid, and lines and give you a written report. No purchase required.
Latest News
Understanding the Chevy Silverado's 4WD System: Maintenance and Troubleshooting
As a Chevy Silverado owner, you rely on your truck's 4WD system to tackle tough terrain and harsh weather conditions. But do you know how it works, when to use it, and how to maintain it? Neglecting your 4WD system can lead to costly repairs and even leave you...
On-Site Auto Repair: Santa Rosa's Premier Hybrid Vehicle Specialists
As a hybrid vehicle owner, you're likely committed to reducing your carbon footprint and enjoying the fuel efficiency benefits that come with eco-friendly driving. But when your hybrid needs repair, you need a team of experts who understand the unique complexities of...
Why On-Site Auto Repair is the Best Choice for Auto Repair in Santa Rosa
Many vehicle owners in Santa Rosa are discovering the numerous benefits of on-site auto repair services. By opting for this convenient solution, you not only save time but also receive personalized care tailored to your specific needs. With certified technicians...
Top 5 Benefits of Choosing an On-Site Auto Mechanic
Benefits of choosing an on-site auto mechanic can significantly enhance your car maintenance experience. By opting for this convenient service, you'll save time and have the comfort of getting repairs done right at your location. Not only does this eliminate the...
Common Auto Repairs and How Our Santa Rosa Mechanics Can Help
Over time, your vehicle may require various repairs to keep it running smoothly and safely. From brake replacements to engine diagnostics, it's important to recognize common auto issues and address them promptly. In this blog post, you'll learn about the most frequent...
How to Find Reliable Auto Mechanics in Santa Rosa
Many car owners in Santa Rosa face the challenge of finding a trustworthy auto mechanic. Your vehicle is a significant investment, and ensuring it's in good hands is crucial for both safety and longevity. In this guide, we'll outline practical steps you can take to...
The Convenience of On-Site Auto Repair – How We Bring the Shop to You
Over the years, in-home services have dramatically transformed, and auto repair is no exception. Imagine having skilled technicians come directly to your location, ready to handle everything from oil changes to engine diagnostics without you needing to leave your...
Essential Auto Repair Tips from Our Expert Mechanics
You rely on your vehicle for daily transportation, so knowing how to maintain it is crucial. Our expert mechanics have compiled necessary auto repair tips that will help you keep your car operating smoothly and efficiently. From routine maintenance checks to...
Why Regular Auto Maintenance is Key for Longevity and Performance
Many car owners underestimate the importance of regular auto maintenance, often viewing it as an optional expense rather than a vital investment. By prioritizing routine check-ups and services, you not only ensure your vehicle operates efficiently but also extend its...
The Most Common Auto Repair Issues and How to Prevent Them
Most car owners experience a range of common auto repair issues that can be costly and inconvenient. Understanding these problems and knowing how to prevent them is imperative for maintaining your vehicle's health and longevity. In this guide, you'll learn about the...
Read More About Our Auto Mechanic Services
On Site Auto Repair in Santa Rosa is a full service auto mechanic shop. Our auto mechanics are certified and are here to help with all of your repair needs. No auto repair job is too big or too small for On Site Auto Repair. We handle all types of auto repair, including regular maintenance, engine repair, brake work, and troubleshooting. If you are looking for honest and reliable auto mechanics, give us a call today. Ask us about our new customer specials.
Vehicles are usually described as 5 speed or 6 speed, meaning they have that many gear ratios. Those gears let the vehicle travel across the full range of speeds and use the engine's power efficiently. Transmissions are complex and are in constant use, so they take a lot of wear and tear. Many owners also forget to check and change the fluid on a regular schedule. That is why transmission problems are so common. At On Site Auto Repair in Santa Rosa, our transmission technicians can diagnose, repair, or replace your transmission. If you are looking for an honest transmission repair shop, give us a call today.
There are several warning signs that your vehicle can give you before your brakes may reach the point of potential failure or extensive repair. Whether composed of ceramic, semi-metallic, or organic materials, brake pads erode each time you depress the brake pedal. If the pads wear down too much without being replaced, the metal housing for the pads will make contact with the metal rotors (or drums), which may produce not only a safety issue but a situation where the rotors/drums are required to be replaced as a result of the prolonged contact of metal parts without the pad buffer. If you are in need of an affordable brake repair mechanic in Santa Rosa, please do not hesitate to schedule an appointment today!
Vehicle Inspection In Santa Rosa
The key to top notch automotive repair and troubleshooting lies in a thorough understanding of what’s actually going on under the hood. Sure, you know that a radiator keeps your engine cool, but understanding how it keeps it cool is the key to solving technical problems efficiently. If you know which parts perform what function, your powers of diagnosis will be much more powerful.
Radiator Inspection Service In Santa Rosa
Ensuring that your vehicle’s engine cooling system is in proper operating condition is extremely essential to engine life and performance. Operating at excessive temperatures can lead to premature engine wear. Your vehicle’s engine cooling system should be checked periodically, and a radiator coolant flush is also recommended to prohibit radiator corrosion. On Site Auto Repair will thoroughly drain and power flush the old coolant and particulates, and refill the cooling system with your vehicle manufacturer’s recommended coolant.
Our Santa Rosa Service Area – Directions to On Site Auto
Proudly serving drivers throughout Santa Rosa neighborhoods, from Railroad Square to Bennett Valley, and extending our trusted auto repair services to Petaluma, Sebastopol, Windsor, and all of Sonoma County.
We Service Clients From All Over Sonoma County
From Wine Country commuters to local families, we provide reliable auto repair services to Santa Rosa, Petaluma, Sebastopol, Rohnert Park, Windsor, Healdsburg, and communities throughout Sonoma County.
Things To Do In Santa Rosa, CA
From exploring the Charles M. Schulz Museum and Luther Burbank Home & Gardens to enjoying outdoor adventures at Spring Lake Regional Park and Annadel State Park, Santa Rosa offers endless opportunities for family fun, Wine Country experiences, and recreational activities that keep our community vibrant year-round.
Santa Rosa Transportation to On-Site Auto Repair
Conveniently located in the historic Railroad Square district with easy access from Highway 101, our auto repair shop is just minutes from downtown Santa Rosa, Santa Rosa Plaza, and all major neighborhoods, with nearby public transit options and walkable access to local shops and restaurants while your vehicle is being serviced.
Contact On-Site Auto Repair Today
Ready to experience honest, reliable auto repair in Santa Rosa?
Whether you're dealing with a check engine light, need routine maintenance, or facing an unexpected breakdown, our ASE-certified mechanics are here to help. We serve drivers throughout Santa Rosa and Sonoma County with the same commitment to quality and honesty that has made us the area's most trusted auto repair shop.









