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"He could have easily upsold me but didn't," a September 2025 customer wrote of Nick Theriault; instead he suggested ways to save money and charged a price the customer called very reasonable. Theriault works out of Pepperell, and his site says the business is owner-operated, with the work done by Nick himself rather than a franchise call center. It claims 17 years in business, offers free estimates, and lists panel upgrades, wiring, lighting, generators and EV chargers across towns including Groton, Townsend, Dunstable, Westford and Chelmsford. Nicholas R Theriault holds Massachusetts electrician licence #3026-EL-JR, which is active. On Google he has 5 stars from 66 ratings, with written reviews running from 2024 into 2026. Recent customers describe a mix of repair calls and project work: in June 2026, one had a breaker-tripping problem traced through a thorough inspection and resolved, and a July 2026 customer said he had installed vanity and overhead lights and added and relocated outlets. Another July 2026 reviewer said he had done electrical work for both a renovation project and general repairs over the past year. The older reviews add range. In 2025 reviews, customers describe a 200-amp service riser replaced along with a dedicated 30-amp dryer circuit, a portable generator hooked up to a panel, an outlet cut into the middle of an office floor, and 30-year-old smoke detectors replaced after he explained every bedroom now requires one. A 2025 customer with an emergency A/C issue said he arrived within 30 minutes and had it fixed the same day. In 2024 reviews, customers describe an EV charger installed with the power run from the basement to the garage over two days, and recessed lighting installed in four bedrooms. One small detail recurs: four reviewers mention how he gets along with their dogs.
Nick has been doing electrical work for us over the past year; both on a renovating project and for some general repairs. NIck is dependable, reliable, knowledgeable, efficient, communicates well and gets right back to when we have a question. He has done excellent work. We would definitely recommend him. And our dogs love him too!
Nick is reliable, professional, and fairly priced. He’s completed a couple of different projects for us, and every time the work has been done right the first time. He takes pride in his craftsmanship, leaves the work area clean, and treats your home with respect. I’d gladly hire him again and would confidently recommend him to anyone looking for a dependable electrician.
Nick was quick to respond, and gave me a fair price for the work requested. He was friendly, professional and left the space cleaner than I had it! Will definitely be working with him again!
Nick is knowledgeable, efficient, communicative, and professional. He has installed vanity and overhead lights, installed new and relocated existing outlets, and provides education and tips when asked. Will absolutely hire again
Nick did a great job troubleshooting and resolving an issue that was tripping the breaker. He conducted a thorough inspection to isolate the cause and provided clear communication before and after completion. Highly recommend Nick for any electrical work.
Specializes in
Also offers
Service area
3 changes recorded — last scanned Sep 30, 2026.
Typical Greater Boston range for this kind of work, from regional averages — not a quote from Nicholas Theriault Licensed Electrician. Use it to sanity-check bids, then get the real number in writing.
Standard receptacle swaps — a new dedicated circuit is a bigger job ($350–$750).
Flush mounts, pendants, chandeliers — hung on existing boxes.
Estimated range
$530 – $1,100
Typical electrical project around $820
Languages
Languages
Same-day storm outage response3.8
Honest pricing over competitors' upsells5.0
Older home wiring5.0
State-verified electrician license3.0
