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Dalpe Electric is a Derry, New Hampshire electrician serving homes and businesses across Southern New Hampshire and Northern Massachusetts, from routine repairs to generator installs and full panel upgrades. Ken Dalpe founded the company in Derry and, per the company's own site, has been doing electrical work in the area for more than 30 years; he still answers calls and troubleshoots issues himself alongside his crew. The review history here is deep — a 4.9-star average from 53 ratings on Google and the same 4.9 from 31 ratings on HomeAdvisor, where 90% land at five stars. Response time keeps coming up: a homeowner who lost power late at night got a callback first thing the next morning and a technician out within two hours. Generator work shows up again and again — in a June 2025 review a crew installed a whole-house generator and switchover box after a breaker panel was damaged, and in a November 2024 review a customer who'd already hired the team for a basement remodel called them back to install a whole-house generator and automatic switchover box. A few reviewers also mention Dalpe troubleshooting an issue by phone before ever sending a truck, as described in a 2022 review. The company holds an active, registry-verified electrician license in both New Hampshire (10334) and Massachusetts (33910), and it's an A+ accredited business with the Better Business Bureau. It's also an authorized Generac dealer, which lines up with how often generator installs come up in its reviews. One thing worth knowing: a 2017 review described frustration with where new outlet holes were drilled and a late arrival — an older account, but a real one. Otherwise the review history here runs almost entirely five stars going back to 2017. This is a solid call for generator installs, panel upgrades, and same-day electrical troubleshooting in the Derry/Southern NH area; get a written estimate for larger jobs and confirm scheduling up front.
Lost partial power to home but not clear as to why . First call was to Dalpe late at night and left a message. They got back to me first thing in AM and had someone to check things out in less than 2 hours. Alex, the tech, checked out our power box and found it okay. He followed up and identified power line from utility as issue. Issue turned out to be squirrel chewing on utility power line drop to home. Had to call utility as this line is their responsibilty. I cannot recommend Dalpe strongly enough. They are quick, thorough, and pleasant to work with. NOTE: Dalpe replaced our electric panel 2 summers ago. Same great experience and they managed the project including coordination with utility and town inspector. They have a great team.
REPEAT CUSTOMER GREAT SERVICE FROM KEN AND HIS SKILLED TECHICIAN 'JOHN'. MY POOL WAS NO LONGER NEEDED AND I WANTED IT'S CIRCUIT BREAKER AND OUTSIDE SWITCHS REMOVED. ALSO ASKED TO HAVE MY OUTDOOR UTILITY SWITCH RESTORED BACK TO SERVICE. QUICK RESPONSE FROM KEN AND QUALITY WORK DONE BY JOHN. I HIGHLY RECOMMEND DALPE ELECTRIC AND WILL BE CALLING THEM AGAIN FOR FUTURE NEEDED WORK.
Jon changed a thermostat for us today. He was friendly, informative and efficient. Thank you, will call again for future needs !!
Ken was very helpful in finding a solution to the issue. Highly recommend.
From the initial call to the completion of the job we can’t say enough. The 2 service guys who came out were kind, polite and respectful in navigating my suggestion around my dad who has some dementia. They were timely from beginning to end which I respect. Cindy.
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1 change recorded — last scanned Sep 8, 2026.
Detailed project work5.0
Knob-and-tube replaced5.0
Old-house wiring5.0
Broad electrical scope5.0
Emergency speed2.6
Broad repair scopeNot yet rated
Came back free4.5
Fast workmanship4.0
