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TRUSTED BY LEE, NH HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon28
    Verified generator installs reviews

Verified Reviews for Generator Install pros in Lee, NH

*The Angi rating for Generator Install companies in Lee, 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 Lee, 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 24, 2025

Find Generator install pros in Lee

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

Serving Lee, 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%
5 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 Lee, 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."
Standby Generator installed in the back of family's home.
Generator Install
Generator Maintenance
Response time3 days
185 neighbors recently requested a quote
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Avatar for Smith Electrical
Smith Electrical
4.9(
111
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business

Serving Lee, NH and surrounding areas

Approved

In business since 2007

Free estimates

Warranties offered

"He quickly diagnosed the issue with the generator, ordered the part and installed it. All is well!"
Ready for backup power
Our Work
Our Work
Our Work
Our Work

+13

Response time2 days
12 neighbors recently requested a quote
Recommended by97%of homeowners
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Avatar for Bob Daniels Electric
Bob Daniels Electric
4.5(
46
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Lee, 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
Recommended by97%of homeowners
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Avatar for ARETE ELECTRIC
ARETE ELECTRIC
5.0(
20
)
Fixed Generator - InstallGenerator - Install - For BusinessGenerator - Repair - For Business+1 more

Serving Lee, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2012

Free estimates

Credit card accepted

"Tommy and his crew did exceptional work. Very clean, very efficient, and perfect install."
Response time2 days
4 neighbors recently requested a quote
Recommended by5%of homeowners
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Avatar for Loyal Lab Electric & Generators
Loyal Lab Electric & Generators
5.0(
5
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install

Serving Lee, 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

26 neighbors recently requested a quote
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Avatar for Moses Electric Inc
Moses Electric Inc
5.0(
11
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Lee, 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!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+1

Response time5 hrs
Response rate100%
14 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 Lee, 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%
10 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 Lee, 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
59 neighbors recently requested a quote
Recommended by98%of homeowners
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Generator Install questions, answered by experts

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. 

To reduce AC startup power for a whole-house generator, install a soft start kit or hard start capacitor, which lowers the initial surge by gradually ramping up the compressor. Using a smart load manager can also help by staggering startup loads, preventing a system overload and future costly repairs.

It’s usually better to repair your generator if it isn’t working properly, as it will typically be much more affordable and should yield similar results. Generator repairs cost around $300 on average, while installing a new whole-house generator costs around $5,000 on average. The only exception is if you know your generator is reaching the end of its useful life, usually between 30 and 40 years. If you have an older generator, you could face multiple repairs in the coming years, which might mean that a full replacement will be more cost-effective over time.

The amount of time a standby generator can run continuously is around 3,000 hours on average. However, standby generators can generally run indefinitely as long as they have a continuous fuel supply. Generators hooked up to a home’s natural gas supply are the best option for extended usage, as these won’t rely on a finite fuel supply based on how much you have in storage. Generators running on liquid propane or diesel won’t last as long, as these require fuel storage and regular refueling to stay running.

As a safety measure, you should always turn off the main breaker while operating your generator’s backup breaker. In addition, you should also switch off all appliance breakers so you don't have a power surge when the main breaker turns back on. And finally, turning off the main breaker prevents back-feeding, which endangers utility workers with the risk of electrocution. Back-feeding could also destroy the electrical circuits of your neighbors if they use the same power network.

The Lee, 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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