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TRUSTED BY DURHAM, 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 Durham, NH

*The Angi rating for Generator Install companies in Durham, 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 Durham, 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 Durham

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

Serving Durham, 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 Durham, 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
249 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 Durham, 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
11 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 Durham, NH and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"Repaired wiring ripped off the house during a storm"
Untitled Gallery 1
Response time6 hrs
3 neighbors recently requested a quote
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 Durham, 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
5 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 Durham, 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 Moses Electric Inc
Moses Electric Inc
5.0(
11
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Durham, NH and surrounding areas

Approved

In business since 2011

Emergency services offered

Customers say: True professional

"Scott did an excellent job for us. We needed an EV charger installed and a few other things done. He came by, sized up the job and gave us an estimate. In a few days he showed up ready work. He installed the EV charger, re[laced 4 thrmostats, and fixed a doorbell. All went well. His price was reasonable. He worked quickly and efficiently and got everytjing right the first time. I highly recommenr Moses Electric and would glady hire Scott for future electrical jobs."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+1

Response time5 hrs
Response rate100%
13 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 Durham, 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 Electrical & Security Solutions, LLC
Electrical & Security Solutions, LLC
5.0(
13
)
Fixed Generator - InstallFixed Generator - Repair

Serving Durham, 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%
16 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 Durham, 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
63 neighbors recently requested a quote
Recommended by98%of homeowners
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Generator Install questions, answered by experts

Yes, natural gas generators can work without electricity. Natural gas generators are a common type of backup or whole-house generator that operates when the electrical grid isn’t working. The trick is using a transfer switch (which usually needs to be installed with the generator) that safely switches the home electrical system from the power grid to generator power when needed.

You can determine what size generator you need for a transfer switch by matching the switch to the largest outlet on your generator. Larger generators can power up to 10 circuits, while most 5,000-watt generators can provide power to six circuits. So, if your generator’s largest outlet is 30 amps, you’ll need a 30-amp transfer switch.

If you’re wondering whether gas generators produce carbon monoxide, know that natural gas generators do not produce carbon monoxide if they are functioning properly, as natural gas burns cleanly. However, if the generator malfunctions and the gas does not burn completely, there is potential for carbon dioxide to be produced. To prevent malfunctions, it's crucial to perform regular maintenance, including running the generator weekly and scheduling professional inspections every 6 to 12 months. Also, be sure to test your carbon monoxide detectors regularly to ensure they function in the rare case of the generator producing carbon monoxide.

Generally, you’ll want to keep between 60 and 70 feet between the generator and the transfer switch. There are a few reasons for this, including:

  • The distance reduces the noise coming from the generator into your home.

  • It increases efficiency because you won’t have a voltage drop from this short of a distance.

  • Prevents carbon monoxide poisoning: keep at least 15 feet between your generator and an open window. 

DIY is possible for basic setups. Professional installation ensures safe and proper electrical connections.

The Durham, 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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