4.5 
50 *The Angi rating for Generator Install companies in Derry, NH is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.
*The HomeAdvisor rating for Generator Install companies in Derry, NH is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.
Last update on May 27, 2026
Serving Derry, NH and surrounding areas
Approved
In business since 2019
Free estimates
Emergency services offered
"The installation went flawless. There were 5 installers and everyone one was a professional and had it done in super time. Would recommend them to anyone looking for a generator."
+5
Serving Derry, NH and surrounding areas
Approved (Corporate)
Super Service Award Winner
In business since 1987
Free estimates
Credit card accepted
"Yearly service. I highly recommend Cote Electric for generator install and service!"
Serving Derry, NH and surrounding areas
Approved
In business since 2002
Free estimates
Warranties offered
"Competent, quick, and neat. Explains installation and operation in detail. Returns calls quickly and has better customer service skills than most companies I have dealt with. This job was for wiring a backup generator to house. Will hire again for any electrical work needed."
Serving Derry, NH and surrounding areas
Approved
In business since 2006
Free estimates
Warranties offered
"Professionalâ  -very nice, prompt, and reasonably priced."
Serving Derry, NH and surrounding areas
Approved
Super Service Award Winner
In business since 2012
Free estimates
Credit card accepted
"Installed ductless mini-split, light fixtures, fan and wiring for sunroom addition. Also installed Ring cameras and doorbell for house, and changed out all old smoke detectors in house. Outstanding workmanship and coordination. Worked very well with general contractor. Crews were polite, neat and great to deal with. EXTREMELY PLEASED !"
Serving Derry, NH and surrounding areas
Approved
In business since 2003
Free estimates
Credit card accepted
"I've used Jeff on 3 different occasions- a complete kitchen and bathroom gutting, electrical updates at a new house 2x. I'd recommend Jeff's work without hesitation. He makes good recommendations, does clean and quality work and charges a fair price."
Serving Derry, NH and surrounding areas
Approved
In business since 1990
Free estimates
Customers say: True professional
"I have to say that David Krafton is an excellent electrician. I. Called him about a. light. Over. My sink that I could not fix by replacing the bulbs. He came out and told. Me the light was not working, as it was shorted out. He then went and bought me a new light and installed it. It works get and is so much brighter the the previous one. Thank you David I will be calling you again to do other work for me. Loraine in Bedford N.H."
+5
Serving Derry, NH and surrounding areas
Approved
In business since 2024
Free estimates
Emergency services offered
"They were very efficient, came on time, very clean, and reasonably priced."
+1
Serving Derry, NH and surrounding areas
Approved
In business since 2018
Free estimates
Credit card accepted
"Tyler and his crew were amazing! Professional, on time, great communication, and the work is top notch! From first visit to get an estimate to cleaning up the job site, perfect! Thank you and highly recommend to anyone that is looking for electrical work!"
+10
Serving Derry, NH and surrounding areas
Approved
In business since 2023
Free estimates
Warranties offered
With over 10 years of experience, we pride our company on our quality of work. We are owner operated, and believe in building long-term relationships with our clients by delivering tasks that are accomplished in a neat and workman like manner. Give us a call today. We look forward to working with you!
From average costs to expert advice, get all the answers you need to get your job done.
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