Got my car into the shop and was greeted by Danny. I was incredibly late for my appointment (sorry) but was still able to get help to see what my issue is with the car. Just to quickly summarize, I had issues with my cabin not having cold air. There was some issue with the AC compressor since the refrigerant leaked out of it. They tried finding the leak but couldn't snuff it out. After further diagnosing they decided to add refrigerant and did more diagnosing to see where the issue may have come from but just ended up staying in the system. This was several days ago and somehow my car still has cold air rushing in (and thankfully, being summer and all.) Because Danny couldn't figure out the issue, he just charged me on the low end, which isn't fair to him but made me a happy customer who will happily be coming back for all car shenanigans. Thank you Danny! Thank you for not letting me get a heat-stroke read more

Took both my corvettes for removing the mufflers and go with a axel back kit I bought. They were totally fair with price and were done very quickly. I would not hesitate to use them on any work needed on my cars. If I trust them with my Corvette you can trust them with your car. Well Done All-flow!! read more

All Flow Muffler & Auto Repair - Auto Repair Near Me - Martinez, California

My Daughter Carla Voorhies has been going here for years and Danny Larson is the Absolute Best his other mechanics Are also amazing !!!

Jeff was great. I had a very odd request, I wanted my truck quieter. I bought it with an aftermarket exhaust which was loud. He switched out the muffler and boom much quieter read more

Great business. Jeff and Danny are good dudes. Always doing a great job welding my catalytic converters. They do great auto repair also. Appreciate you guys! We need more good businesses like this! read more

I almost never write reviews- but had to make an exception for All Flow because my experience with them was so great. My catalytic converter was stolen overnight, in front of my house, from my Toyota Prius. Multiple muffler shops told me they had no replacement catalytic converters in stock and it would be a 6-8 month wait to get one. Then I called All Flow. They had them in stock, came and picked up my car at my house, dealt with my insurer (who was initially pushing back on covering the full cost of the repair) and kept me appraised at every step of the way. All I had to pay was my $100 deductible. I can't recommend this shop highly enough for repair work- they are great. And the owner, Danny, is super nice and actually returns phone calls! read more

Very impressed with Danny and Jeff. Went somewhere else and got a quote for rotors and pads, all four for over $1,000. They told me I only needed front, and it was under $500. They showed me the rotors, and the pads and why my breaks were squeaking. Actually showed me, not just told me they were low. They helped me to understand, which was above and beyond what they needed to do. They treated me like their daughter, and took care of my car. Thank you guys!! read more

Danny and his team are absolutely stand up. Though I created a few challenges with Service for my 35 foot RV, Danny and his team were on it to completion. Super nice. Super accommodating. And his honey is outstanding, I know it sounds crazy but stop by the shop and check it out.. read more

I recently had a lot of work done on my truck, timing belt, transmission and differential fluid change, spark plugs, etc. They did an excellent job and the price for all my work done was very reasonable. This is my new go to shop! I like being able to support local businesses read more

Great place to have your car needs met. Danny helped my friends and myself out for years now. This particular time Danny helped me with my old Acura. I found out that thieves love to steal the cat of this car. I looked under my car and sure enough, the cat looks super easy to steal. Did some research on how to prevent theft and then talked to Danny. He sure knows his stuff. We talked about his other patrons that he has helped and what he could do for my car. I brought my car to him. He put it on the rack and he and his mechanic custom fit my car with a crazy big braided wire to deter/prevent the Cat theft. Danny is a friendly guy. No BS, just the facts and getting things done. Thanks read more

All Flow Muffler & Auto Repair - Cable is running over and under game pieces and around the cat. - Auto Repair Near Me - Martinez, California

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I am beyond pleased with the GREAT CUSTOMER SERVICE I received. I called All Flow Muffler and I spoke with Danny (the owner) to make arrangements to get my car serviced. Danny picked up my vehicle the next morning and had photos and an estimate sent to my insurance company the same day. Not only was Danny fast with getting everything the insurance company needed he noticed that the insurance was dragging their feet. Danny reached out to me and explained that the insurance company was not responding and I should call them. After going back and forth with the insurance company they finally gave the okay to start the work. Danny was able to get my car back to me within hours. I highly recommend everyone to use All Flow Muffler for multiple reasons. Their customer service A+, their communication is A+, and getting the work done quick and done right is A+. read more

heard about this place through FB....service is good, mechanic has plenty of experience... went in for a 60k tune up...$620... confirm your apt the day before if going through facebook as this is more of an old school shop read more

All Flow Muffler & Auto Repair - biz card - Auto Repair Near Me - Martinez, California

Another great experience on a tough repair. I have been going to theses guys for years and they are the BEST in the business. Helpful, friendly and honest mechanics that will take good care of you and get you the best price they can. Thanks All Flow Muffler! read more

Took my '99 Tacoma in for a new flowmaster today and the guys were friendly, professional and got the work done quickly. I'm very happy with the way my truck sounds and would go to them again. Thanks, All Flow! read more

All Flow Muffler & Auto Repair - Auto Repair Near Me - Martinez, California

I've been tinkering with cars / trucks for well over 20 years. Seen it all. First time I've ever gone to a place and didn't get a shady vibe. Good folks. Even played Blues on their waiting area sound system for my 10 month old daughter!! Old school customer service. A dying breed. read more

If I could rate this Business with anything more than a (5) five "I would". Both Danny and Jeff are the most honest reliable mechanics I have ever run into. I use them for "anything" that goes wrong with my Mercedes Benz 350 ML as well as our Kia Sorrento. Just total confidence in these guys is all I can say. They are always "Spot on" repairs and go out of their way, both of them to make you happy and do the right things. Never have they increased their prices after beginning a job or came back saying they found this or that. Just simply the "BEST" . Great knowing they are still honest people in this world. They have done several different types of repairs and even small service Items. Always Happy to see you, remember you. And really Know their Business! Rick Musgrave read more

Absolutely rude service, I called in for a quote and to ask about a part I had ordered myself for installation. The response from whoever was on the phone seemed angry that I would order my own parts (probably because they dont get to put steep markups on them). After talking a little bit more I decided to bring my car down to get it looked at. I waited for 45 minutes, was ignored, had other customers who came in after me served before me. When I was finally helped, the guy couldnt wait to tell me I had the wrong part and gave me some BS lecture about why the shop should always order it (again, so they can mark up everything and gouge you). Complete garbage service, no attempt to even try to help me get what I needed. Dont go here unless you want to get ripped off. read more

My truck was on it last leg so I thought. They did a complete tune up & oil change. And its back on the road . Very happy with the fast service . They are a complete car/ truck care service read more

I can not say enough good things about this place. My cat was stolen from my RV right before our big annual camping trip. I called, the owner Danny answered, and he was especially helpful. Insurance was not an issue and they got me out quickly. This shop runs on honesty and good people. I appreciate their work. read more

I could write a book to tell you about the amazing service I received at All Flow, but I'll keep it short and sweet. I recently picked up a barn find '72 F100. I had the truck tuned up and running and in pretty good shape. It had been sitting for years. The main headache (literally) were really bad exhaust leaks on both manifolds. This is a pretty common problem for this model. The bolts were seized on the heads and I had nothing in my DIY garage that could break them loose. I first took the truck to a muffler shop in Vallejo that had a pretty amazing reputation once upon a time. They took the truck in and sat on it for SIX WEEKS. No phone call, no wrench turning... Nothing! To make matters worse, their in shop mechanic tried to poach the job. Shady! In a panic, I called All Flow and was put at ease by Danny immediately. He advised to get it out of that shop FAST and bring it down to him. I had the truck at his door the following Monday. Shoulda brought it here first. Ah well. Communication with Danny and Jeff was always great. They would give updates of where they were in the project and a ballpark of completion time. There were a couple of parts snafu's (thanks Summit) but the truck came out looking, sounding and most importantly, running beautifully. I ended up getting the heads machined, custom dual exhaust (beautiful welds) with glass packs coming off of Hooker headers. Since the engine was already taken apart, it was decided to upgrade the carb and intake. A new Edelbrock intake and Holley carb did the trick. The fabricated kickdowns Jeff made look better than the stock stuff and the response time is instant. Don't let my hot rod story detour you. These guys were rebuilding engines on newer model Hondas and Subarus when I would pop in. I think they do bikes and boats, too. They are truly a full service shop. I can't give All Flow a high enough recommendation. I will return again. Thanks guys! read more

It isn't very often that one finds a good fit. But I did, when I needed what I thought was an exhaust leak in my pickup. I searched for a muffler shop and the only one listed as a muffler shop was All Flow. Well they turned out to be a muffler shop and so much more. After inspecting my truck for an exhaust leak it was determined that the problem was most likely a defective freeze plug dripping onto an exhaust pipe and the resulting fumes leaking into the cab of my truck. So, now. Can they replace the freeze plug? Yes, and the leaking power steering pump too. And the broken exhaust bracket that they found with the initial inspection. Am I satisfied? Yes, and then some. I got my truck back in one day, and I'm writing this review. The first one ever for Yelp. I almost forgot to thank Danny and his very able mechanic Jeff. I'll be back. read more

To All Flow Muffler, Thank you for your great work! I found that both owner Danny & mechanic Jeff are top notch for mufflers and car repair. I highly recommend them! I have had mufflers, cat converters, and mechanical work done and found them to be the best prices and VERY HONEST!! Thanks again. read more

Spoke to Danny about bringing in my Mercedes for a battery change. Friendly and accommodating; ordered the battery from a local shop while I was on the phone. There was no upcharge, and the service was MUCH cheaper than had I taken it into the dealership. Went to All Flow because my colleague kept using them for his VW, and service was always excellent. read more

If you need anything done ro your car, I would highly recommend All Flow Muffler and Auto Care on Pacheco Blvd. I have lived in Martinez for 16 years, but thought this shop only did mufflers..... boy was I wrong. In the past year or so, I've taken my car to him for various things, but never a muffler problem. This morning I took my car there because my 'light out' indicator appeared on my dash. Daniel is nice, friendly and professional, and he was able fixed it on the spot ...and charged me very little. If I took it to Mercedes, I would have had to make an appointment, and they would have charged so much more. Now I can't say he will do all fixes on the spot, but he is much quicker then anyplace I've tried in the past. Try All Flow. I think you will be pleasantly surprised, and no I am not related to anyone there, and no, I am not being paid to write this. read more

I was having trouble with one of my trucks for years. I previously took it to a shop in Vallejo and they told me some crazy problem the truck had and wanted to charge me thousands of dollars to fix it. So I brought the truck to Danny at All Flow and he figured out the issue and only cost $60! I'm so grateful I found this shop. They are honest and will do the job the right way. read more

Great service from Danny! My car wouldn't pass smog and he replaced the catalytic converter for a reasonable price. He went above and beyond to help me out and make sure my car would pass, and it did! read more

Great service, fast turn around time and extremely reasonable quote. I have an older vehicle that has never failed a smog check. Apparently it would not pass at the smog center due to exhaust leaks in the muffler. All Flow got me in, replaced my muffler and I passed smog. Thank you Danny and All Flow!! read more

I took one of our cars in because the a/c wasn't working . Several places offer to recharge the a/c but that doesn't fix the problem ( it's a temporary fix ) they found the leak and fixed it . They were very reasonable and it was done quickly. This is my new go to place ! read more

Quality work and excellent customer service, had me out of there in no time and sent me on my way with a smile on my face. Thanks for helping me out Danny I'll be back. read more

Thanks to Danny and the crew at All Flow! Took care of my F250 Diesel and got the job done on short notice and ahead of schedule!

This is the only mechanic I trust. Fair prices,friendly service and really great work. Danny and Jeff go out of their way to accommodate. I got three belts and my breaks done on my Honda and it runs like a dream. I previously had a minivan that Danny kept reliable for me until I could upgrade. Thank you Danny!! read more

These guys are seriously good! We have used them forever for company vehicles, and we routinely get 200,000 miles under their watchful care. Most recently my 15-year-old has developed a crush on the guys there. Mysterious dash warning lights appear, and a simple trip will cause them to go off. And last week, a turned key in the ignition did nada... CSAA towed her to All Flow, and my Nissan was so happy to get there again, she started up right again (even after the tow truck driver had tried unsuccessfully to get her going) and proudly drove off the tow truck! The guys are so understanding and fair in not charging for this obviously time-consuming infatuation of hers. Gosh, teenagers!! read more

Went in to get a muffler done. Only took 45 minutes to do and they charged $250 for the labor and the new 80 series muffler. These guys are around the same price as many other shops but the quality of work is incomparable. Remember people, car work isn't cheap!!! You get good prices like here, or u get a overpriced shop The guy who worked on my car was very nice and knowledgeable. They back their work and products 100%. I enjoyed my experience and will definitely be coming back. Strongly recommend. The small shops are the best ;) read more

I highly recommend All Flow Muffler and Auto Repair. The owner Danny is honest and fair. As a woman I'm always on the lookout for reputable shops and this is one!! read more

These guys are great and just saved me and my broken down car. I was picking up my dog from a nearby kennel when I discovered my car wouldn't start and I had a heavily corroded battery terminal. They gave me a jump and proceeded to deal with my 6 year old battery and very corroded terminals. Out in less than an hour, which is amazing as the tow truck was quoted as an hour to an hour and a half out due to it being the first business day after a holiday weekend. Also, Teresa, is fantastic to burn the time with. read more

every 3000 miles I bring my van in for a oil change. Thank you again for the fabulous service and always checking things to make sure they are up to par. : ) read more

I needed to get a catalytic converter replaced. I was in and out, no hassles and it didn't break my pocket. These guys are great, I highly recommend their service! read more

Used them three times in the last 18M. Fast, reliable, inexpensive with funny & down to earth guys that will level w/ you.

All flow is a good place to take your vehicle, I've had exhaust, brakes, head gaskets, and other things done on all 3 of my vehicles, they are professional & complete jobs on time, I highly recommend them, Robert Hammond read more

I wanted to replace my catalytic converter before I got my 1995 Avalon smog checked. I called All Flow and talked to Jeff. He quoted a price that was below 2 other quotes. I went to have my cat installed, Jeff asked me if it failed smog. I said no, I had not had it checked. I was concerned that on my last test (2yrs prior) my HC readings were close to the max. He said he did not think I needed a cat and told me I should drive on the freeway to get the cat hot and get a smog test. If it fail bring it back and he would look a the results and diagnose the failure. I did what he said and passed smog with no problem. He turn down business to do what was right for me. I would give them 10 stars if I could. Not only are they reasonable but they are HONEST which is rare to find. So, I will be using them for my future repair work (they do more than muffler work). I will also be recommending them to my friend and anyone I know needing auto repair work. read more