Top-rated generator install pros.

Get matched with top generator install pros in Sunapee, NH

Enter your zip and get matched with up to 5 pros

Need a pro for your generator install project in Sunapee, NH?

Select your specific project to find the pro for you.

Find Generator install pros in Sunapee

Avatar for Generator Supercenter of New Hampshire
Generator Supercenter of New Hampshire
4.8(
35
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Sunapee, NH and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"The installation was performed ahead of schedule and was completed in just a few hours. The installers were friendly and professional. We did have a bit of an issue with some damage to our lawn, however I contacted the company (Rich M) and they responded immediately, did a great job and did so no hassle whatsoever. I would recommend this company to anyone who is in need of a generator."
22KW Installation
18KW Installation
Preparation for the day
Photos
Response time1 day
Response rate98%
86 neighbors recently requested a quote
Avatar for Let It Glow Electric, LLC
Let It Glow Electric, LLC
4.6(
32
)
Portable Generator - Install

Serving Sunapee, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2018

Free estimates

Emergency services offered

"The owner was friendly,knowledgeable, listen to your issues, help decide the right choice action. Then exe used the action which included a new breaker box and generator hook-up. Very neat job, do e right and fast."
Exterior
Kitchen
Main service
Transfer switch and main panel
Canopy recessed cans retrofit

+27

Response time1 day
4 neighbors recently requested a quote
Recommended by76%of homeowners
Payson Power and Communications
4.0(
4
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Repair - For Business+1 more

Serving Sunapee, NH and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

"Pete was very prompt and professional. He was able to upgrade all of our outdated outlets in one full day. Unlike past electricians who have come across a bit grumpy, Pete was super friendly and seemed happy to walk us through all our silly questions. I would highly recommend Pete if you want the job done thoroughly and with a smile!"
Response time1 day
13 neighbors recently requested a quote
Recommended by40%of homeowners
Avatar for Brens Electric LLC
Brens Electric LLC
5.0(
1
)
Generator - Install - For BusinessPortable Generator - Install

Serving Sunapee, NH and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

We bring years of proven experience and a strong work ethic to every project we undertake. As a fully licensed and insured electrical contractor, we combine technical expertise, attention to detail, and strict compliance with all applicable electrical codes and safety standards. Our work is performed with professionalism, precision, and accountability. Whether managing complex electrical systems or providing routine maintenance, every task is completed with a focus on quality, reliability, and long-term performance. Our goal is to build lasting relationships built on trust, consistency, and exceptional service.\n

800A Service Upgrade
800A Service Upgrade
4 neighbors recently requested a quote
Levi Electric
New to Angi
Portable Generator - Repair

Serving Sunapee, NH and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

Levi is a Master Electrician with over 10 years of experience in the electrical trade. He has primarily worked in high-end residential and custom homes, bringing strong expertise in electrical layout, lighting design, and coordination with insulation and building systems. Levi is highly knowledgeable in all aspects of residential electrical work, from rough-in to finish, and is committed to safe, code-compliant, and high-quality installations.

Thimothy Johnson
4.9(
46
)
Fixed Generator - InstallPortable Generator - Install

Serving Sunapee, NH and surrounding areas

In business since 2005

Credit card accepted

"Tim has installed several ceiling fans/outside security lighting/generator install, installed outside electrical outlets and wired my shed with electrical service. Tim, is a very honest person and his work has been professional from start to finish. I would recommend Tim for anyone needing electrical work. His prices are reasonable compared to others in our area."
Recommended by100%of homeowners
Showing 1-10 of 36
Generator Install questions, answered by experts

You may need a permit for a portable generator if you’ll be installing a transfer switch for your primary residence or similar work. Otherwise, a permit for other uses may not be necessary. Check your local building codes or ask a local generator installer for more information about your local regulations.

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.

Here’s what you can run with different wattages and types of generators:

Portable generator:

  • 2,000 watts can handle a large appliance like a freezer or refrigerator, plus a few smaller items like phones or computer chargers. 

  • 4,000 watts will keep two large appliances operating and a few smaller devices.

  • 8,000 watts should power most essential appliances and other devices, including a sump pump, well pump, or your dishwasher.

Partial to whole-house generator:

  • 20,000 watts and above will make it seem like your home’s power is still on.

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. 

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.

The Sunapee, NH homeowners’ guide to generator installs

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