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    Average homeowner rating
  • Verified reviews icon22
    Verified generator installs reviews

Verified Reviews for Generator Install pros in Strafford, NH

*The Angi rating for Generator Install companies in Strafford, 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 Strafford, 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 June 19, 2025

Find Generator install pros in Strafford

Avatar for Generator Supercenter of New Hampshire
Generator Supercenter of New Hampshire
5.0(
15
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+2 more

Serving Strafford, NH and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"Everyone should buy a generator from the Generator Supercenter of NH. Everything was seamless, from the sales visit to the installation. Their professional crews exceeded all expectations. I would highly recommend them."
Completed 22kW Generac Standby Home Generator Installation - With GenMon MobileLink installed, our 24/7 monitoring program which includes annual maintenance!
Automatic Transfer Switch Installed - shown on the left with the customers electrical panel on the right.
Additional Photos
Additional Photos
Additional Photos

+5

Response time3 days
Response rate100%
10 neighbors recently requested a quote
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Avatar for Cote Electric, LLC
Cote Electric, LLC
4.9(
46
)
Fixed Generator - InstallFixed Generator - Repair

Serving Strafford, NH and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1987

Free estimates

Credit card accepted

"Djems the tech was personable, professional and thorough. If possible I will ask for him to service our generator in the future. Great to see his work ethic!"
Standby Generator installed in the back of family's home.
Generator Install
Generator Maintenance
Response time3 days
369 neighbors recently requested a quote
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Avatar for Bob Daniels Electric
Bob Daniels Electric
4.5(
46
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Strafford, NH and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"A very Honest person came to my home he was very pleasant. Came the same day I looked them up on home advisor. Price was excellent I would definitely use them again. Thank you Bob Daniels Electric. I will recommend your company and will call upon you for my three homes."
Untitled Gallery 1
Response time6 hrs
6 neighbors recently requested a quote
Recommended by97%of homeowners
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Avatar for Angell Electric
Angell Electric
5.0(
29
)
Portable Generator - Install

Serving Strafford, NH and surrounding areas

Approved

In business since 2019

Credit card accepted

Offers commercial services

"Was in the area and able to come by within an hour to complete the work. Quick, quality service, fair prices. Highly recommend"
Project Photos
1 neighbors recently requested a quote
Recommended by18%of homeowners
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Avatar for Loyal Lab Electric & Generators
Loyal Lab Electric & Generators
5.0(
5
)
Fixed Generator - InstallPortable Generator - InstallFixed Generator - Repair

Serving Strafford, 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.

Past Projects
Past Projects
Past Projects
Past Projects
Past Projects

+13

23 neighbors recently requested a quote
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Avatar for Mr. Electric of Southeast NH
Mr. Electric of Southeast NH
4.7(
91
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business

Serving Strafford, NH and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

"They were wonderful, did a great job!"
Lighting
EV Charger
Panel
200A Service
Kitchen Lighting

+1

Response time8 hrs
Response rate88%
4 neighbors recently requested a quote
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Avatar for Electrical & Security Solutions, LLC
Electrical & Security Solutions, LLC
5.0(
13
)
Fixed Generator - InstallFixed Generator - Repair

Serving Strafford, 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!"
Landscape lighting
Landscape lighting
Landscape lighting
Landscape lighting
Landscape lighting

+10

Response time7 hrs
Response rate100%
7 neighbors recently requested a quote
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Avatar for LaPlante Electric, Inc.
LaPlante Electric, Inc.
4.4(
71
)
Fixed Generator - InstallGenerator - Install - For Business

Serving Strafford, NH and surrounding areas

Approved

In business since 1991

Free estimates

Emergency services offered

"Very professional and did our generator installation very efficiently."
Whole House Generac Generator 22 Kilowatt (KW)
Top View of a 22 Kilowatt (KW) Generac Generator
Internals of 22 Kilowatt (KW) Generac Generator
Back of 22 Kilowatt (KW) Generac Generator
200 AMP Whole House Transfer Switch

+8

Response time3 days
62 neighbors recently requested a quote
Recommended by98%of homeowners
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Angell Electric
5.0(
20
)
Portable Generator - Install

Serving Strafford, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Small jobs welcome

"We were very happy with the work.Eric was easy to work with. He installed a new 220 circuit and was able to fish it though the walls harmlessly whereas other electricians we talk with were going to tear up the drywall. Pricing was very reasonable. Highly recommend."
Response time2 days
8 neighbors recently requested a quote
Recommended by27%of homeowners
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Avatar for Allpoints Electrical
Allpoints Electrical
5.0(
9
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Strafford, NH and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

"I have a very good impression of Mr. Morton and appreciate his efficiency and speed in getting my generator back in service. I have asked him to put me on his list for a yearly evaluation. I am trusting that the next time there is a power failure my generator will be back in operation."
Response time4 hrs
Recommended by100%of homeowners
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Generator Install questions, answered by experts

A 1,500 square foot home will likely need a 15kW to 20kW generator. When deciding on whole-house generator size, add up the total wattage of the devices that you’d like to continue running during a power outage. That way, you can ensure you purchase a generator that can power your necessary appliances or medical equipment during an electrical emergency.

Sizing a generator is a careful process that requires calculating the electrical load of your entire house. You have to take into account every device you want to use and their wattage requirements, plus the wattage needed to start them, and look for a generator that can safely run all that at around 80% capacity.

In more practical terms, a small home can run on a 10,000-watt generator (and if you only want to power a few key appliances, much less than that). A mid-sized home may need something between 15,000 and 22,000 watts. Larger homes require 25,000 watts or more. 

Yes, in most municipalities, you will need a permit to install a permanent home generator, including emergency backup, partial-home, and whole-home models. Because these installations involve significant alterations to your home's electrical system and produce exhaust fumes, local governments often require a permit or inspection for safety purposes. A generator permit typically costs between $50 and $250, depending on your location. Your electrician or certified installer can usually handle the permitting process for you, but you will be responsible for the cost. It's a good practice to confirm with your installer that they will pull all necessary permits before work begins.

Generators are usually sized by running watts and starting watts. Ideally, you’ll want a generator that can offer both the necessary running watts and starting watts for everything you need to power without going beyond 90% of its capacity. Calculate your home’s electrical load based on the breakers in your home or adding up the appliance and lighting needs of connected rooms.

With proper maintenance, a whole-house generator can last between 20 and 40 years. The specific lifespan depends on how often and for how long the generator is used, and some models may have their life expectancy rated in hours of operation. To maximize its lifespan, expect to spend around $150 to $300 per year for annual maintenance checks from a qualified technician. During these checks, a technician will inspect the engine filter, starting mechanism, fuel, lubrication, and coolant levels. Consulting your installer and choosing a low-impact fuel like natural gas or diesel can also help ensure your generator lasts as long as possible.

The Strafford, NH homeowners’ guide to generator installs

From average costs to expert advice, get all the answers you need to get your job done.

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