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January 2024 by Arlee
These guys absolutely saved me!! Last August I was many miles from home (from Chicago), and my car suddenly had an issue on the highway. I was sent from AutoZone to these guys, and I couldn't have gotten a better place. Thankfully they had time that day to squeeze me in to diagnose and fix my car. I could tell that they are honest people and the owner really knows his stuff. He explained exactly what was wrong with my car, and they were professional with me the entire time. They even filled up my break fluid for free since they noticed it was a little low. Without their help I don't think I would have been able to drive back home. Truly thank you.
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September 2023 by J K
Towed my dead car to their facility and diagnosed/repaired the starter in a single day. Great communication the whole way through, can’t ask for better service than that.
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June 2023 by Kevin Cavanaugh
Bill & his team are real pros. I’ve been a loyal customer for +10 years. Bill takes the time to explain the issues he’s discovered, presents repair options and has very fair prices. Only place I will take my Audi - he’s usually half (or less) the cost of going to the dealer and he uses original Audi parts.Services: Air & cabin filter replacement
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June 2023 by Rachel Kollar
Always satisfied with the service from Bill and the team. We've been coming here for 5+ years and we are happy knowing we've got a reliable shop when we need them.
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April 2023 by Kimberly Noel
They were great. Fast and friendly service.
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March 2023 by Mike Giblin
Always reliable. Fair prices. And I've never had to go back because they failed to fix an issue. If you're looking for a great mechanic, don't go anywhere else.
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October 2022 by Jasmine D
Bill and his team are the most honest mechanics around. My Mother and I have known Bill for a long time and been going to him for YEARS. He is the only one we trust to work on our vehicles. And no matter the problem he fits us in immediately and gets things resolved as fast as he can! 10/10 would recommend his shop for any needs you may have!
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October 2022 by peter bradley
Chelmsford diagnostics is a great shop very professional and very reasonable prices. I will be a customer for a life!Services: Wheel alignment
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October 2022 by Vinny Myles
Friendly, helpful reasonable prices. Recommended.
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September 2022 by Sarah Rolph
Bill is the best mechanic I have ever worked with. He really knows cars, and he really cares about people. Ignore the disgruntled reviews from losers who didn't like his attitude. Bill is honest and very knowledgeable. He has gone out of his way to save us money, and he has never been wrong in his assessments. We have taken our cars to him for years and years, always with a very positive result.
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June 2022 by Ben Knapton
Fair prices, knowledgeable, dependable. I had a hard time finding a mechanic I could trust after moving to the area a few years ago. Bill is great, I bring all my vehicles here and refer people to him whenever I can.
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December 2021 by 阚哲（Kan）
Trying to do inspection here, drain my battery and failed my inspection. Staff are rude and refused to do a free retest. Had to ask an police officer step in. Also receive many scam calls and mails after the first visit, should avoid any service here to protect your privacy.
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July 2021 by Diane Darling
Very knowledgeable and professional.
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June 2021 by Stephen Samaras
Great experience. From out of town offered good professional advice and direction.
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June 2021 by Jonathan L
Good service
