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Gagnon's Electrical Services is a Nashua-based electrical contractor handling residential and commercial work, including breaker repairs, panel upgrades, wiring, lighting, inspections, and EV-charger installation. The company describes itself as family-owned and serving southern New Hampshire and northern Massachusetts. Customers describe fast help with breakers and power loss, panel and lighting work, EV chargers, and wiring. One customer said Mr. Gagnon answered an after-hours call and fixed a breaker within an hour; another described a damaged service restored after a pole accident, and others described panel, light-fixture, and charger installations. A Merrimack customer described a different service call in detail: the callback came later than expected, the crew went to the same street address in Nashua after Merrimack had been confirmed, and the visit ended with a minor switch adjustment. The customer said the unexpected charge was $135 for about a 10-minute information-giving visit, that the service-call price and check-only payment method had not been disclosed, and that they would not have proceeded if they had known. Another customer said an agreed visit was missed after taking the day off work, then moved to the next day without care. A separate customer reported no response through the website contact form.
They came very fast after my call, he was able to help with our breakers and got them fixed right away. Would definitely recommend!
I couldn’t be happier with Gagnon’s Electrical Service. From start to finish, the experience was seamless — they came out promptly, got everything done efficiently in a matter of hours, and were an absolute pleasure to work with. Courteous, professional, and genuinely skilled at what they do. Finding Gagnon’s was a real win, and I wouldn’t hesitate to call them again or recommend them to anyone in need of reliable, top-notch electrical work.
I had a wonderful experience with Gagnon Electric. They came to my home on very short notice to replace a broken circuit and remove some wiring behind my house. I later realized that the wires I asked them to remove were actually powering lighting at the front of my house. They returned the next day and fixed the issue free of charge. Their kindness and generosity, especially after my mistake, really stood out. I highly recommend this team!
We have now used Gagnon’s Electrical for two projects, replacing our electrical panel and replacing our bathroom fan. Both times they were prompt, extremely knowledgeable, and no BS. He doesn’t try to oversell you things you do not need and gets the job done quickly and undoubtedly cheaper than most with high overheads. In both instances he was able to get to us within two days. He doesn’t just make sure it gets done, he goes above and beyond to make sure it’s done right. I wish more businesses were the same. If you need work done, you should definitely give them a call!
Mr. Gagnon answered the call and fixed our breaker problem within an hour AFTER hours. Courteous, friendly, and efficient. Thank you!
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Certified attributes are verified against the public registry. Others are the business's own statement.
1 change recorded — last scanned Aug 25, 2026.
EV chargers, hot tubs, and pool circuits5.0
Authorized Generac generator dealer4.3
Inspector-ready wiring3.3