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Fremont's Best Complete Auto Repair Services

General Info
BEST PRICE CATALYTIC CONVERTERS: Clutches - Computer Diagnostics - Check Engine Service - Timing Belts - Transmission Fluid Exchange - Hoses/Batteries - Shocks, Struts - Front End & Alignment - Scheduled Maintenance - 30K, 60K, 90K - ABS Brake Repair/Brake Work - Alternators - Radiators - Water Pumps - Oil Changes - Wheel Balancing - Tune-Ups

When you are looking for quality automotive parts and services and you want to pay the most reasonable prices, look no further than Guaranteed Mufflers & BrakesYOUR Complete Auto Repair Service Center!

We have been serving the inspections, regular maintenance and repair needs of commercial and residential customers in or around Fremont, CA since 1997.Our great experience and reputation will provide you with the best complete auto repair professionals in the area.

We service cars and trucks (both domestic and imports), vans, RVs, SUVs and 4WDs.Come by our shop any time and get a free brake inspection! Once you have seen how we beat any of our competitors' prices, you will be glad you came. We know when it comes to brakes and mufflers that cost is a definite factor in choosing a shop. That is why we have made the commitment to beat any of our competitors' prices.Our name says it all: Guaranteed!

Here at Guaranteed Mufflers & Brakes we only use name-brand, quality products from large manufacturers. This coupled with more than 30 years of experience with expert installations, and you will find that WE can take care of all your vehicles' needs.

Contact us today to find out more about our complete auto repair services and special offers!

Flowmaster, Jasper, Masterflow, Spin Tech
Payment method
debit, check, cash, all major credit cards
On Fremont Blvd Just North of Thornton Ave
Centerville, Brookvale
English, Spanish, Vietnamese

ASE Certified

Automobile Parts & Supplies, Auto Engine Rebuilding, Auto Repair & Service, Auto Transmission, Automotive Tune Up Service, Brake Repair, Engine Rebuilding & Exchange, Mufflers & Exhaust Systems


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Curt I.



Came in on Saturday with no appointment. Got a no bs quote on a muffler and catalytic convertor for my pick up. They installed it within 1 hour. Denise and the crew were great! I am going to get the motor in my jeep replaced there soon? Best garage in Fremont!

D C.


Excellent customer Service

I can't say enough about how much we appreciate Allen and his staff at Guaranteed Muffler and brakes. They are honest, reliable, and provide great customer service. (Something you don't always find in the auto repair industry)

We use them to maintain our entire fleet and they do everything from a simple oil changes - to tires, brakes, and engine repair. So far there hasn't been anything they haven't been able to fix for us.

I highly recommend them.

Larry Lee Moniz


Provided by Citysearch
Best Auto Repair Shop In The Bay Area

Guaranteed Muffler and Brakes is seriously the best auto repair shop I have ever been to. I went in to replace my catalytic converter, walked a few doors down to get a bite to eat. I came back, and they were done! Alan is the man in charge, and he runs an honest shop,. He really goes out of his way to the job done quickly, and right the first time. My rear axel had to be replaced because of some bad barrings. Alan got everything done in a day, and worked everything out with my warranty company. It all got done without a glitch! They do so much more than just Mufflers and Brakes, and they do it all with expertise. I have been searching for an honest, and reliable mechanic for years. I don't have to search anymore. I won't even think twice before going back to Guaranteed for my next service. Alan and his crew will have you covered!



Women Friendly: Great Experience

These guys went above and beyond to get me back on the road (I'm an old woman) same day. The magazines are good, the seating comfortable, the restroom clean, and the diagnosis fast. The mechanic was competent, the price was more than fair - and the repair solid. I have used this shop on and off for years, and my only complaint (four stars vs. five) is that I like my car to be as clean inside when I get it back - as when I drove in. Last few visits have been major improvements -- I'm seeing 5 stars in their near future! It's hard to find a shop to trust - but this is it!

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