Emissions testing service near Derry, NH

Mike and the crew are good, but the prices are extremely high!!! I understand they offer easy financing options for car repairs, but their prices are around the same as the dealer. I could’ve got my brakes done at the Ford dealership for $369 that’s included the parts and labor, Mike charged a whopping $580, now mind you the parts were around $125 max for the pads, and rotors. He had a lady in there to change her A/C compressor and charged her $1750 holy crap!!

Kyle diagnosed and repaired our electrical problem, which dealership could not fix. Great, Great, Great work!!!!!!!!

I’m very lucky to find this service shop for my Mini Cooper R53. It's my first Mini and I want to rebuild/upgrade/keep it for a while; satisfied with the professionalism.

I've been to J-perks for car services for over 3 years. Always satisfied with my service! Very trustworthy, quality mechanic!

Welp, it seems to be that the only reviews that are posted are glorious. I did not have a good experience with foreign motors. At first I was delighted with the service and the people. 3 days later all the things that were repaired malfunctioned all over again. Asked to make an appointment however because the time wasn’t “convenient” for them I wasn’t able to get it repaired in time. Had to go elsewhere. Not very satisfactory customer service.

They ruined my rims and broke a part in my car, replacing it with a generic instead of OEM part. They had their 14 year old sons working in the back, practicing on the vehicles. They denied it. Even though the kid just told me he was learning and working on the cars back there! No wonder why they damaged my rims! When I tried to confront the manager, he got in my face and started screaming at and intimidating me, a small female. When I told a lawyer who was a lifelong customer of theirs about what happened, he said they screwed him over, too. He won’t use them anymore either. Dupont heavily advertises because they damage cars and then intimidate, lie to, and blame the customer. Especially to people here on vacation, because they don’t get the repeat business that many other mechanics depend on. They are completely unethical. Avoid!

Best and cheapest around

These people are wonderful to work with. They don't cut corners but put my priority - safety - always first. They explain everything clearly and are very detailed and professional with all inspections, maintenance and repairs. Best maintenance shop I have ever been to. Great experience. Excellent product at excellent rates. I wouldn't go anywhere else. Sandra Thomas

I have used Windham Mobile for years, approaching 18 now, and keep coming back. Doug and his crew always do an excellent job working on three separate cars and one pickup over those years. I do my own oil changes and spark plug replacements, but more involved work like surpentine belts, tranny and radiator fluid changes and the occasional real problem with a vehicle, I leave to them knowing the work will be done well and at reasonable, not cheap, but reasonable rates. Sometimes, I ask for the old parts, and when I do, they are there for me to look at and keep if I want. I have never been disappointed. I am writing this review because I need to have my tires changed over to snows for the winter, looked their number up on the internet to give them a call, came across the reviews, and figured I should throw in my two cents. Barry J. Windham, NH