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Avatar for Noyes Electric
Noyes Electric
5.0(
32
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install+1 more

Serving Walpole, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2022

Free estimates

Offers commercial services

"Installed an exterior generator hookup with auxiliary breaker box. John was excellent and the install looks and works great. He stayed late to troubleshoot an issue and was very gracious with his time. I would definitely hire him again!"
Response time1 day
Response rate93%
28 neighbors recently requested a quote
Avatar for Let It Glow Electric, LLC
Let It Glow Electric, LLC
4.6(
32
)
Portable Generator - Install

Serving Walpole, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2018

Free estimates

Emergency services offered

"Jared was very responsive to my inquiry, coordinated with the electric company and town quickly, did a nice job on the installations and at a competitive and fair price. I also liked his professional estimates, invoicing, follow up, and online payment options. The insurance company had given us a very short time to change all 3 electric panels, and by the time we hired Jared that window had diminished considerably. But he got it all done and they still aren t here!"
Exterior
Kitchen
Main service
Transfer switch and main panel
Canopy recessed cans retrofit

+27

Response time1 day
3 neighbors recently requested a quote
Recommended by76%of homeowners
Richard Hebert Master Electrician
5.0(
1
)
Fixed Generator - InstallPortable Generator - Install

Serving Walpole, NH and surrounding areas

Approved

In business since 2020

Credit card accepted

Offers commercial services

We can take on a wide range of residential and commercial electrical projects to include full installation for additions and remodels as well as wiring/panel upgrades, and a variety of other projects. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.

1 neighbors recently requested a quote
Avatar for Brens Electric LLC
Brens Electric LLC
5.0(
1
)
Generator - Install - For BusinessPortable Generator - Install

Serving Walpole, 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
7 neighbors recently requested a quote
Levi Electric
New to Angi
Portable Generator - Repair

Serving Walpole, 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.

Avatar for Vermont Generator Systems
Vermont Generator Systems
5.0(
1
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Walpole, NH and surrounding areas

In business since 2008

Free estimates

Emergency services offered

Since 2004, Vermont Generator Systems has proudly supported the backup power needs of homes and businesses across parts of Vermont and New Hampshire. Our experienced team is with you every step of the way, from the initial site assessment to professional installation and ongoing maintenance. VGS has deep expertise in installing and servicing Generac generator systems.

Check out our Generic Generator Installations!
A collage of recent Generator Installations!
Response time6 hrs
Response rate100%
7 neighbors recently requested a quote
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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.

It might seem counterintuitive, but installing a generator transfer switch will save you money in the long run. While you’ll have to pay between $400 and $2,500 to have the transfer switch installed, you’ll recoup that amount later on when you don’t have to pay for expensive repairs to your appliances, devices, and electrical system that may have burned out, overloaded, or stopped working due to a sudden loss of power or an incorrect hook up of a generator to your home. 

Yes, installing a generator usually increases your property value because buyers are getting the added peace of mind knowing they’ll be able to maintain power through blackouts. In most cases, you should see close to a 100% return on investment (ROI). Keep in mind that home generators usually need a permanent foundation, and installing a concrete slab will likely raise your property taxes slightly.

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.

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. 

The Walpole, NH homeowners’ guide to generator installs

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