Peak Performance & Diagnostics

Reviews

• TG

  Todd Goodfield

  Mar 30, 2026
  5.0
  These guys are incredibly knowledgeable. I have an 07 Passat and they diagnosed and repaired it, so quickly. They knew what they were doing, and talked me through all my repair options
• JE

  Jeffrey E

  Mar 20, 2026
  5.0
  Words can’t describe how grateful I am for these guys, After months and too much money Peak repaired my vehicle in 2 days and provided updates and clear explanations to anything that needed to be done to the vehicle and i’m not taking any of my german vehicles anywhere else. Thank you to the peak team!
• TI

  Tsubasa Ito

  Mar 20, 2026
  5.0
  Recently had them perform a brake job on my mother’s ‘19 BMW X5. I live in a different state but my mom lives in Derry and always has me talk to the dealership and shops about her car needs over the phone for her. She used to always go to the BMW dealership for all her maintenance and repairs but we’ve decided Peak Performance & Diag will be her go-to, one-stop-shop for all her car needs from now on. Josh is a great guy, well spoken, fair, and will make sure you’re taken care of. They don’t take advantage of you whether you’re male or female, old or young. They’re honest and won’t upsell you unless you really need it.
• CB

  Charlie Bedard

  Mar 13, 2026
  5.0
  After dealing with cylinder misfires on my A3 for four years, Peak Performance diagnosed and took care of the problem. I’ve been to 3 other shops but none were able to resolve the issue. I was impressed with amount of detail they shared with me throughout the process. Highly recommend.
• PP

  Phynomenal

  Feb 25, 2026
  5.0
  Recently moved to NH, and have a 2020 BMW 330xi. This place came up and Peak Performance has been my go to spot for routine services since. Highly recommend, efficient and communicative.