4.7 
19 *The Angi rating for Generator Install companies in Dover, 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 Dover, 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 July 29, 2025
Serving Dover, 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 Dover, NH and surrounding areas
Approved (Corporate)
Super Service Award Winner
In business since 1987
Free estimates
Credit card accepted
"Installation of a gas generator as electrical backup for sump pumps as I live in a flood zone,. This electrician found the problem and fixed it. Thoroughly professional."
Serving Dover, NH and surrounding areas
Approved
In business since 2000
Free estimates
Emergency services offered
"He told me the price before he came he came on time he was pleasant and was done in 10 minutes"
Serving Dover, NH and surrounding areas
Approved
Super Service Award Winner
In business since 2012
Free estimates
Credit card accepted
"They were very professional, cleaned up the area as they finished. They installed a They installed a combo mini split system with three inside heads . They arrived on time and completed the job in one day . They were very efficient and the installation was perfect"
Serving Dover, NH and surrounding areas
Approved
In business since 2025
Free estimates
Emergency services offered
Loyal Lab Electric & Generators is a locally owned electrical contractor serving Dover, Portsmouth, Rochester, and the NH Seacoast from our base in Somersworth, NH. Owner and NH Master Electrician Eric Hope has been in the trade since 2008 and founded this company in 2018. \n\nWe are an authorized Generac dealer with certified service technician's on staff, specializing in whole-home generator installation, electrical panel upgrades, EV charger installation, and electrical repairs. We serve residential customers across the NH Seacoast and southern Maine. NH Master Electrician License 13956. \n\nEvery job we complete donates to The Rusty Fund, supporting local dog rescues through our partnership with Pope Memorial Humane Society in Dover.
+13
Serving Dover, NH and surrounding areas
Approved
In business since 2011
Emergency services offered
Customers say: True professional
"Scott was amazing ! He is professional, punctual, and precise in his work! He has done both outdoor and indoor electrical installations and we know that he is a master electrician that we can trust and count on to perform outstanding work. We are thrilled to have him as a professional that we can depend to do a marvelous job! We recommend him unconditionally!"
+1
Serving Dover, NH and surrounding areas
Approved
In business since 2024
Free estimates
Emergency services offered
"They were wonderful, did a great job!"
+1
Serving Dover, NH and surrounding areas
Approved
In business since 1991
Free estimates
Emergency services offered
"Very professional and did our generator installation very efficiently."
+8
Serving Dover, NH and surrounding areas
Approved
In business since 2019
Emergency services offered
Small jobs welcome
"Matthew came very quickly after we contacted him and did a great job. And when he left the worksite was neat as a pin. The price was extremely reasonable and we are very happy with the outcome and will be hiring him again soon for a second project"
Serving Dover, 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
From average costs to expert advice, get all the answers you need to get your job done.
The cost to install a generator transfer switch depends on several factors. Our guide will help you understand all of the costs.
The average cost of a whole-house generator falls between $5,000 and $25,000. Keep reading to learn how much you can expect to spend.
Natural gas generators are whole-home standby generators that are connected to your home’s natural gas line. The average cost for a natural gas generator is $12,000.
Generators should give you peace of mind, but you’ll only get that if your installer knows what they’re doing. Learn how to hire a pro and what red flags to look for.
Whole home generator installations require a professional hand. Read this guide to help you decide which generator is best for your home.
Wondering who to hire to install a generator? Consult this guide to learn who to hire to install a generator or a transfer switch.
