Wife came in to have her muffler look at come to find out somebody was trying to steal it with the catalytic converter did not succeed but car was loud as hell. Me being the non car guy had her take it here. Let me tell you she said they were very professional and nice. Told her they didnt have anything till the end of the month but told her to hold on and they got her in for the fix 100$. Thank you to the owner and mechanic. Will be recommending you to friends and family

Just called about my catalytic converter loss, they were extremely helpful!

Dealership quoted me $1700. Fixed my Cadillac for $250. Thank you for saving me $1500. My car is running smooth n sounds 100% better!

Owner/staff are professional and personable. It is really refreshing to find a quality auto shop that tells you honest answers and backs that up with a positive experience!

Love Danny and Jeff! Absolutely great experience! Got me in and out and understood I was on a budget. Great quality work!

Got my car in quickly, did a thoroughSafety check for my up coming roadtrip. I can always depend on Dannyand his crew . Thanks Danny

Great place friendly and experienced people great prices

Very professional and thorough. They actually appreciated my business.

Amazing place. Danny was so kind and understanding. Walked me thru the whole process. Saved me money on towing and worked with me to keep the price as low as possible. The car was in and out super fast . I will continue to bring all my busines to him. Overall a excellent experience during a hard time. It was noticed and appreciated 💜💜💜

Replaced my cconverter and the the price was great 👍

I own taxi cab company in Martinez and I try all the mechanic in the town I can not found honest one and finally I take my car Honda Odyssey 2010 to concord Honda to fix the the heater but the service department can not found the problem and charge me to much and I take my car to all flow muffler shop in Martinez and the guy work in my car his name is Jeff he fix it in just 2 hours and he said was bad wiring and finally I found the honest one I looking for him he is name is Danny he is honest friendly and wonderful and professional and if any one of my friend need fix a car this only the place you have to go

Good people know what they are doing.

Great shop great prices last of the good mechanics

If you’re new to the area or just looking for a mechanic you can trust, All Flow is your answer. I took my 2010 Mini Cooper to them (thanks to a recommendation from my neighbor) and I couldn’t be more happy with my experience. They truly care about their name and their reputation, and it shows. You don’t have to worry about them suggesting any service or parts you don’t need. They’re honest and they’re professional. What more could you ask for from your mechanic? Thank you Danny, thank you Jeff.

I had dual exhaust put on my truck. They did a good job and am please with their work. Cool friendly place.

I’ve been using All-Flow Muffler & Auto Repair since they opened in 2005. Danny and his staff are very professional and they do great work. I wouldn’t take my car anywhere else.

Top notch service...Danny not only fixed my muffler but also fixed Meinekes F- up...actually walks you thru the process. Quality & honesty....THNX GUYS!

Jeff and Danny are straight-up honest guys, and great mechanics with affordable pricing. HIGHLY recommended!

Very wonderful experience courteous friendly and professional very fair priced and very accommodating I definitely recommend them

Excellent care he went out of their way to help me thank you for checking

I had a muffler issue that prevented me from having my car pass a smog test. Mitas muffler wanted 230 dollars to fix the problem. ALL-FLOW looked at my problem and had it fixed in an hour...and it passed the smog re-inspection!!! The total cost of the fix.was a WHOPPING 75.00 DOLLARS,,,THATS SEVENTY FIVE DOLLARS. These guys arent just great mechanics...they are customer driven and will not rip you off like other shops Ive been to in east Contra Costa County

Great service

I love Dany Larson He is very helpfull.

Groovy guys

Danny Larson is a stand up guy

Awesome service. Quick, reliable. The owner Danny is great, funny and professional!