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Wagner Electric LLC is a Londonderry, New Hampshire electrical contractor offering complete residential and commercial electrical service. The company says it has almost 35 years of industry experience, is fully insured, and is state certified in New Hampshire, Massachusetts, and Maine. The New Hampshire license registry lists active electrician license 10446 to Derek T. Wagner. Customers describe dependable electrical work, including whole-house updates, GFI and outlet upgrades, recessed LED lighting, Cat 6 cabling, Tesla wall-charger installation, and outdoor hot-tub wiring. Reviews mention on-time arrival, reasonable or fair pricing, clear options, and work completed without rushing. The available review history is small, so confirm the exact scope, price, schedule, and any multi-state licensing needs before booking. Wagner Electric appears suited to residential or commercial electrical projects in Southern New Hampshire, with the active New Hampshire license providing a concrete credential to verify against the work requested.
I’ve been working with Wagner Electric for over 25 years. He has never failed me. He shows up when he tells you, does great work at a reasonable price. Highly recommend
Derek has always been great on the electrical projects we’ve had at our home. Today he installed a Tesla wall mount charger – works perfectly! Derek is always on time, fair prices and gives you options when appropriate. He wired our outdoor hot tub a couple years ago and it’s still going strong - highly recommend!
Derek Wagner did a great job. Very nice personality and work ethic. Never rushed and did everything right. Very reasonable cost. Would definitely call again.
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1 change recorded — last scanned Sep 8, 2026.
Typical New Hampshire range for this kind of work, from regional averages — not a quote from Wagner Electric LLC. 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
$460 – $970
Typical electrical project around $720
Same-day hot tub hookup4.6
35 years in businessNot yet rated
