Welcome to On Site Auto Repair!
Auto Repair in Sebastopol, CA
Auto repair in Sebastopol, CA offering brake repair and replacement, engine diagnostics and check-engine light troubleshooting, oil changes and tune-ups, transmission service, suspension and steering repairs, wheel alignments and tire services, battery testing and replacement, air conditioning and heating repair, and smog inspections.
Book your appointment today for premier auto repair services in Sebastopol, CA!
Our Auto Repair Services in Sebastopol, CA
Brake Repair Sebastopol, CA
Need confident stopping on Highway 116, Bodega Highway, or Sebastopol’s school zones? Brake Repair in Sebastopol, CA addresses squeals, vibration, pulling, soft pedals, and ABS warnings caused by hills, wet mornings, and stop‑and‑go traffic. Technicians inspect pads and shoes, measure rotor and drum thickness, machine or replace components, service calipers and wheel cylinders, bleed and flush fluid, and diagnose ABS faults. Get fixes that shorten stopping distance and prevent uneven tire wear. Book Brake Repair in Sebastopol, CA and keep control on Occidental Road and Laguna crossings. Choose Brake Repair in Sebastopol, CA for faster turnaround and parts fit.
Radiator Repair Sebastopol, CA
Need Radiator Repair in Sebastopol, CA? Stop overheating on Highway 116, Bodega Highway, and Gravenstein Highway. Technicians diagnose coolant leaks, clogged cores, failing water pumps, stuck thermostats, and collapsed hoses. We pressure-test, verify circulation, flush coolant, and replace radiators, pumps, belts, and hoses to prevent head-gasket damage during Sonoma County heat or foggy runs to Bodega Bay. Fast service for Toyota, Subaru, Honda, Ford, Chevy, Lexus, Hyundai, Acura. Schedule emergency fixes or maintenance before Apple Blossom Parade congestion. Learn more: Radiator Repair in Sebastopol, CA. Choose Radiator Repair in Sebastopol, CA to keep temperatures steady on West County backroads.
Check Engine Light Repair Sebastopol, CA
Got a flashing or steady CEL on Gravenstein Highway? Our Check Engine Light Repair in Sebastopol, CA pinpoints faults with OBD-II scanning, live-data testing, and smoke tests for EVAP leaks. We diagnose misfires, failing O2 sensors, MAF issues from orchard dust, and cold-morning battery drops common in coastal fog. Expect codes explained, repair options, and smog-readiness so you avoid failures in Sonoma County. We service Subaru, Toyota, Honda, hybrids, and work around school and commute schedules. Check Engine Light Repair in Sebastopol, CA delivers accurate fixes and restores mileage. Need Check Engine Light Repair in Sebastopol, CA now? Today.
Auto AC Repair Sebastopol, CA
Need Auto AC Repair in Sebastopol, CA? We diagnose weak airflow, warm vents, and musty smells caused by coastal fog, orchard pollen, and redwood shade. Technicians service R-134a and R-1234yf systems, perform refrigerant recharge, compressor and condenser work, evaporator replacement, leak detection, heater core and thermostat service, blend door repair, and climate control programming. Expect accurate computer diagnostics and pressure testing. Prepare for Highway 12 and 116 commutes with strong defrost on foggy mornings and reliable cooling for Bodega Bay trips. Schedule Auto AC Repair in Sebastopol, CA today. Choose Auto AC Repair in Sebastopol, CA for quick service.
Oil Change Sebastopol, CA
Need Oil Change in Sebastopol, CA? Local driving on Highway 12 and vineyard backroads counts as severe service, so shorten intervals to protect your engine. Get the right oil weight for cool mornings and frequent short trips to Santa Rosa. Technicians follow factory specs, use quality filters, reset maintenance lights, and document service to support warranties. We service Subaru, Toyota, Honda, Ford, and hybrids. Catch leaks, worn belts, and low fluids during each visit. Save fuel, reduce emissions, and avoid breakdowns before drives to Bodega Bay. Schedule Oil Change in Sebastopol, CA and choose Oil Change in Sebastopol, CA.
Suspension Repair Sebastopol, CA
Get Suspension Repair in Sebastopol, CA that addresses local driving conditions. Winter rain and potholes on Bodega Highway and Gravenstein Highway 116 cause clunks, pulling, and uneven tire wear. We inspect shocks, struts, ball joints, control arms, bushings, and tie rods; replace worn parts; and perform precision wheel alignment tailored to crowned rural roads and downtown speed humps. Fix steering vibration, improve braking stability on wet curves, and extend tire life. We service Ford, Chevy, Toyota, Honda, Subaru, Acura, Lexus, Hyundai, and more. Schedule Suspension Repair in Sebastopol, CA today and drive confidently on Sebastopol backroads and Highway 12.
Tire Shop Sebastopol, CA
Navigating Gravenstein Highway, Bodega Hwy, and West County farm lanes can chew up tires; potholes, vineyard gravel, and winter rain create flats and uneven wear. Visit Tire Shop in Sebastopol, CA for precise mounting with proper torque, valve stem replacement, TPMS service, computer balancing, and puncture repair while you wait. We fit Michelin, Bridgestone, Goodyear, and Continental for commuter sedans, hybrids, SUVs, and work trucks. Get vibration eliminated, pulling corrected, and tread matched to wet-season grip. If a nail from construction on Highway 116 strands you, call for quick flat repair and replacement. Choose Tire Shop in Sebastopol, CA.
Transmission Repair Sebastopol, CA
Need Transmission Repair in Sebastopol, CA? Local drivers face stop-and-go on Main Street, steep Bodega Highway grades, and damp coastal commutes that stress automatics and manuals. We diagnose slipping, delayed shifts, leaks, and vibration using scan data and road tests, then perform fluid exchange, filter replacement, clutch service, CV axle repair, transfer case work, and full rebuilds for Ford, Chevy, Toyota, Honda, Subaru, Lexus, Hyundai, and more. Get quick turnarounds to keep up with 116 and Gravenstein traffic. Ask about free transmission inspections. Choose Transmission Repair in Sebastopol, CA for accurate fixes. Transmission Repair in Sebastopol, CA starts here.
About Our Auto Repair Shop in Sebastopol, CA
Sebastopol drivers don't have to travel far for quality auto repair. On Site Auto Repair, located just minutes east on Highway 12, has served West Sonoma County since 2011 with expert car repair services and genuine customer care.
Our ASE-certified auto mechanics understand that Sebastopol residents value honesty and craftsmanship—and that's exactly what we deliver. Whether you need brake repair, engine repair, transmission repair, or radiator repair, we diagnose accurately and repair efficiently.
We're known as the best auto repair shop for import car repair in the region, servicing Subaru, Toyota, Honda, Hyundai, and Lexus vehicles that are popular with eco-conscious Sebastopol drivers. Our expertise extends to domestic brands including Ford, Chevy, and Dodge, ensuring comprehensive coverage for every customer.
From The Barlow to Gravenstein Highway, Sebastopol families trust On Site Auto Repair for check engine light repair, routine maintenance, and everything in between. With over 25 years of experience and a 4.8-star rating, we're the auto mechanic Sebastopol counts on.
Call (707) 326-8655 – Convenient auto repair for Sebastopol at 363 W 9th St, Santa Rosa.
About Sebastopol, CA
Sebastopol blends former plum and apple orchards with a vibrant small-town core, shaped by agricultural roots and arts culture. Residents value walkable streets, community events, and access to local farms, while businesses benefit from foot traffic and tourism. Notable landmarks include Sebastopol City Hall, Ragle Ranch Regional Park, Ives Park, Palm Drive Health Care District, and The Barlow. Technicians handle rural vineyard roads, downtown traffic, and Pacific Coast Highway trips with mobile diagnostics, battery replacement, brake service, and roadside fixes. Service covers Gravenstein Highway, Bodega Avenue, and neighborhoods near The Barlow and Ives Park, scheduling around farm schedules and market days. Parts sourcing favors local suppliers to reduce wait times and keep Sebastopol drivers moving.
Sebastopol's population is 7,521. City center coordinates: 38.4027, -122.8231. The city has a cool-summer Mediterranean climate with wet winters, dry summers, morning marine fog, and occasional wildfire smoke. On Site Auto Repair adjusts maintenance for moisture-related corrosion, battery issues in cool damp mornings, and air filter changes during smoky periods, while following California BAR regulations and emissions standards. In downtown Sebastopol, we handle quick diagnostics and brakes near Main Street. In Pine Grove, mobile service for batteries and alternators. In South Sebastopol, cooling system repairs. In Fircrest, tune-ups. In Laguna Vista, suspension and oil changes. We prioritize eco-friendly practices, using recycled materials and sustainable methods whenever possible, and actively support Sebastopol’s community through local partnerships and events. For reliable Auto Repair services in Sebastopol, contact On Site Auto Repair today.
Cities We Serve
Overcast Clouds
Temperature
Wind Speed
Humidity
Neighborhoods We Serve
Things to Do
Ragle Ranch Park
Luther Burbank’s Gold Ridge Experiment Farm
The Barlow
Sebastopol
Patrick Amiot
Ives Park
Soft Medicine Sanctuary
Sebastopol Town Square
HopMonk Tavern Sebastopol
West County Museum
Laguna Wetlands Preserve
Transportation
Laguna Park Way & Sebastopol Transit Hub
Laguna Park Way & Sebastopol Transit Hub
Sebastopol Post Office
Ragle Park - Ragle Rd & Covert Ln
Sebastopol Rd at Doubles Dr
McKinley Street & Brown Street
Wilton Ave & Florence Ave
Santa Rosa Ave at Sebastopol Ave
Bodega Ave & Pleasant Hill Ave
Bodega Ave & Virginia Ave
Healdsburg Ave & N Main St (Safeway)
Pleasant Hill Ave & Valentine Ave
Hwy 116 & Southpoint Ave
Gravenstein Hwy & Hurlbut Ave
Gravenstein Hwy & Hurlbut Ave
Sebastopol Rd & Hampton Way
Gravenstein Hwy & Mill Station Rd
Gravenstein Hwy & Mills Station Rd
Mill Station Rd & Hwy 116
Hwy 116 & Bloomfield Rd
Driving Directions
Driving Directions from GOLDEN GEAR AUTOMOTIVE to On Site Auto Repair
Driving Directions from K-Tech Automotive to On Site Auto Repair
Driving Directions from Patterson Automotive to On Site Auto Repair
Driving Directions from Pete's Automotive to On Site Auto Repair
Driving Directions from Pauline's Automotive to On Site Auto Repair
Driving Directions from Big Brand Tire & Service to On Site Auto Repair
Driving Directions from J & W Foreign Auto Service to On Site Auto Repair
Driving Directions from The Neighbor's Kid Auto Repair to On Site Auto Repair
Driving Directions from G & C Auto Body, Inc. to On Site Auto Repair
Driving Directions from Caliber Collision to On Site Auto Repair
Driving Directions from Big O Tires to On Site Auto Repair
Driving Directions from Western Auto Body to On Site Auto Repair
Driving Directions from Randy Hanson Auto Body to On Site Auto Repair
Driving Directions from Kalemba's Tire Service to On Site Auto Repair
Driving Directions from Schank Brothers Garage to On Site Auto Repair
Driving Directions from Car Giveaway - K-Tech Automotive to On Site Auto Repair
Driving Directions from Miller Oil Company to On Site Auto Repair
Driving Directions from Saini Auto Sales to On Site Auto Repair
Driving Directions from North Bay Bavarian to On Site Auto Repair
Driving Directions from Coogler's Auto Repair to On Site Auto Repair
Frequently Asked Questions
Our certified mechanics answer the most common car repair questions to help you stay informed and confident. Explore our FAQs for honest, expert advice trusted by Santa Rosa drivers.
Do you provide loaner cars or shuttle service?
While we don't provide loaners, we're located in downtown Santa Rosa's Railroad Square with easy access to shopping, dining, and public transportation while you wait.
Can you work on my vehicle if it's still under warranty?
Absolutely! We perform warranty-compliant maintenance and repairs. We use OEM or equivalent parts to maintain your vehicle's warranty coverage.
How do I know if I really need the recommended service?
We provide detailed explanations and show you exactly what needs attention. We never pressure you into unnecessary repairs - our reputation depends on honest service.
Do you offer payment plans for major repairs?
We accept cash, check, and all major credit cards. For major repairs, we can discuss payment options that work for your budget.
What if my car breaks down outside of business hours?
Call our main number (707) 326-8655 and leave a message. We'll get back to you first thing in the morning to arrange service.
ReviewsWhat Our Clients Say
Brands We ServiceAuto Repair Brand
Toyota Repair
Honda Repair
Ford Repair
Chevrolet Repair
Nissan Repair
Hyundai Repair
Subaru Repair
Mazda Repair
Volkswagen Repair
BMW Repair
Mercedes Repair
Lexus Repair
Acura Repair
Infiniti Repair
Kia Repair
Contact Info
Location
363 W 9th St B & C
Santa Rosa, CA 95401
Phone
707-326-8655
Hours
- Monday-Friday: 8:00 AM - 5:30 PM
- Saturday: 8:00 AM - 4:00 PM
- Sunday: Closed
New Customer Special:
$25 Off First Service Over $100
Oil Change Special:
Full Synthetic Oil Change - $69.9
Free Brake Inspection
Complete brake system check at no charge
Latest News
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Essential Auto Repair Tips from Our Expert Mechanics
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How to Find Reliable Auto Mechanics in Santa Rosa
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The Convenience of On-Site Auto Repair – How We Bring the Shop to You
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How On-Site Auto Repair Saves You Time and Money
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Understanding the Cost of Auto Repair and How to Budget Effectively
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Why Regular Auto Maintenance is Key for Longevity and Performance
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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 here to help you with all of your automotive repair needs. No auto repair job is too big or too small for On Site Auto Repair.We specialize in all types of auto repair, including: regular maintenance, break/fix, engine repair, troubleshooting and much more! 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 or 6 “speed” meaning then have that many gear ratios to allow the vehicle to travel at the full range of speeds required and to make use of the engine’s output power as efficiently as possible. Due to their complexity, constant use and function within a vehicle’s operation, transmissions experience a lot of wear and tear. Add to this the fact that many owner’s forget to check and change the fluid on a regular basis and it’s easy to understand why so many people have transmission problems. At On Site Auto Repair in Santa Rosa, our transmission repair technicians can accurately diagnose, repair or replace your transmission. If your are looking for a reliable and honest transmission repair services company, 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.