Autowerks European
“I have received great service consistently for the past 15 years in my BM Ws and my Porsche.”
Best Muffler & Exhaust Shops near Castro Valley, CA
We have 6 technicians in Castro Valley on file. Only the highest-rated make our list: 3 of them made it, along with 12 from towns including San Ramon (4, 8 mi), Walnut Creek (3, 13 mi) and Oakland (2, 10 mi).
6 open weekends · 14 rated 4.5+ · 1 shows a license
Data verified October 16, 2026
Castro Valley 76
“Jay and his team checked out the car, confirmed a part was defective, replaced it, and made sure all was working well, so I could drive out confident my car was safe.”
Ace Auto Repair & Tire
“The guys swapped out my spare and checked my fluids and didn't even charge me!”
Quality Auto Care
“Had my smog check done there and they were friendly enough that I trusted them because I moved here from out of state and they took care of me right away”
Rich's Auto Services
“If you want an honest and well qualified, experienced AST certified mechanic this is the best place in Walnut Creek.”
Sunny's Star Certified Smog & Repair
“I found this place of business to be honest, friendly, and professional, and the service was fast.”
Listed for drivers in and around Castro Valley, CA, these 15 shops handle mufflers, pipes and catalytic converters. What each one says about welding, custom work and warranties comes from its own website; ratings and quotes come from public reviews.
Area overview: Castro Valley, CA
The 15 technicians on this page are rated from 4.0 to 5.0 across 3,610 reviews; 13 have 50 or more reviews and 14 are rated 4.5 or higher. When customers rate these technicians on specific qualities, they most often praise professionalism (92%), quality (80%) and punctuality (68%). The topics that come up most in reviews of the technicians on this page are "price", "diagnosis" and "estimates". 6 are open on Saturdays. The services the technicians on this page list most often on their websites are brake repair (4), AC repair (3), exhaust system (3), fleet service (3) and oil change (3). 1 shows a license on its website; 1 lists staff certifications (ASE) and 11 have a BBB rating of A or A+. Domain records put 10 websites of the technicians on this page at ten or more years old; the oldest dates from 2001. 1 gives free estimates; 3 are family- or locally-owned and 9 list coupons or special offers. We have a website on file for 12 of the technicians on this page; 10 publish a contact page; 2 list a public email and 5 take bookings online. We count these figures across the technicians on this page; distances are straight-line, and hours and prices change, so confirm the details with the technician before you visit.
Why are some of these shops outside Castro Valley?
3 of the 15 shops sit in Castro Valley and the others come from other towns within 15 mi. A shop with a bender and a welder is worth a short drive, since it can repair what a parts-only counter would replace.
Precision Auto Repair Shop
“Words cannot express my gratitude for all of the hard work that Kristen, Jimmy, and the whole team put into the extensive repair work my family has needed over the past few years.”
Frank's Auto Service and Repair
“I appreciate that they communicate by text with every step of the repair.”
Dorso's Automotive Repair
“Dorso's is always efficient and honest.”
Autotech San Ramon
“I had a positive experience with Autotech San Ramon.”
San Ramon Valley Import Center
“I have been coming to the shop for over 30 years, and even through the multiple owners, starting out with Ian, his son Chris, Sun, and now Rob, the customer service, knowledge, expertise, and value continues to be outstanding.”
Minute Muffler & Service Center
“They do a great job and the prices are very reasonable.”
Gordon's Smog Test & Lube Center
“He said the smog test would take 15-20 minutes and it did.”
Auto Row Smog & Repair
“He takes the time to explain what is wrong, what the least expensive fix would be, and what he would do if he were in your situation.”
ABC Auto Repair & Smog
“I needed a smog test and Lucky was able to do it in under 10 minutes and the price was reasonable.”
Why these companies made our list
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