Top-rated generator install pros.

Get matched with top generator install pros in Windham, ME

Enter your zip and get matched with up to 5 pros

Need a pro for your generator install project in Windham, ME?

Select your specific project to find the pro for you.

TRUSTED BY WINDHAM, ME HOMEOWNERS

  • Average homeowner rating star icon4.9
    Average homeowner rating
  • Verified reviews icon19
    Verified generator installs reviews

Find Generator install pros in Windham

Avatar for Generator Supercenter of New Hampshire
Generator Supercenter of New Hampshire
5.0(
15
)

Serving Windham, ME 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 time5 days
2 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for Generator Supercenter of Maine
Generator Supercenter of Maine
4.6(
39
)

Serving Windham, ME and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

"Diagnosed the problem and repaired my generator so it starts and runs well. I will be using them from now on for all of my generator service in the future. They are a first class company."
Generator Install
18KW Installation
Preparation for the day
Photos
Response time2 days
Response rate93%
78 neighbors recently requested a quote
Payne Electrical Contractors, LLC
4.8(
75
)

Serving Windham, ME and surrounding areas

Approved

In business since 2005

Free estimates

Warranties offered

"Mike was super responsive and very helpful when picking out a new thermostat for our heated floor. The two electricians that came to the house to install the thermostat and a new chandelier were prompt, courteous, and great to work with. We will definitely be recommending Payne Electric to others and look forward to working with them again."
Response time6 hrs
Recommended by100%of homeowners
Avatar for Baldridge Electric Inc
Baldridge Electric Inc
4.9(
40
)

Serving Windham, ME and surrounding areas

Approved

In business since 2007

Warranties offered

Small jobs welcome

"Baldridge electric Installed recessed lights and a new pendant light also new switches.very satisfied with the work done,i would recommend baldridge electric for any electrical job!"
New Home Electric
Service Entrance
Full Home Wiring
Modern Farmhouse
LED & Recessed Trim

+11

3 neighbors recently requested a quote
Recommended by79%of homeowners
Avatar for Solid Ground Electrical Inc.
Solid Ground Electrical Inc.
4.8(
21
)

Serving Windham, ME and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"Not only did the electricians promise to come to install the stovetop as soon as it came in, they came a few days after we first made contact to see what the work would entail and agreed to dispose of the cracked stovetop for us. They kept their promise by coming the day after the stovetop came in, worked efficiently and made sure it worked properly before leaving. My husband and I were extremely impressed with their work."
14 neighbors recently requested a quote
Avatar for LaPlante Electric, Inc.
LaPlante Electric, Inc.
4.4(
71
)

Serving Windham, ME and surrounding areas

Approved

In business since 1991

Free estimates

Emergency services offered

"This was to install a standby generator. The advance planning was excellent as was the quality of the work. Customer service is outstanding. Price was high, however. LaPlante was the highest of 3 bids received. Nevertheless, I selected them because of their professionalism and customer service."
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
44 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Casco Bay Generators LLC
Casco Bay Generators LLC
5.0(
5
)

Serving Windham, ME and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

We are proud to be a Veteran-operated, Titanium Level Kohler® licensed and insured generator dealer. We teamed with Kohler® to give you peace of mind that you are working with a dealer-trained, factory-authorized provider to handle these appliances. We offer all Kohler® and Generac warranties and maintenance services. These are the industry’s best products for backup protection at your home or office.\nWe are also proud to work with Efficiency Maine, offering discounts, rebates, loans, and other initiatives to promote high-efficiency equipment that help Maine’s homes and businesses reduce their energy costs and lower their greenhouse gas emissions.\nProfessionally installing a standby generator and/or heat pump for your home or business is one of the best investments you can make. .\nWe at Casco Bay Generators & Heat Pumps keep the power on 24 hours a day, 365 days a year.

Standard installation.
Response time2 days
15 neighbors recently requested a quote
Showing 1-10 of 50
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. 

Potential benefits of using a natural gas generator include reducing your carbon footprint, lower likelihood of carbon monoxide exposure, budget-friendly operating costs, and low-maintenance, continuous fuel supply. Some possible drawbacks, though, include higher initial installation costs, dependency on a natural gas supply, and installation complexity. Keep in mind that pros and cons will vary based on the type and brand of natural gas generator. 

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.

No, you should never plug a generator directly into a wall outlet in your house. This practice is extremely dangerous, often illegal, and can cause "back-feeding," where power from the generator flows back into utility lines, creating a life-threatening hazard for utility workers. It can also damage your home's electrical system, including appliances like pumps and HVAC fans. If the main power is restored while the generator is connected, it can destroy the generator and cause an electrical fire. To safely connect a generator, you must use a professionally installed transfer switch or an interlocking kit, which prevents back-feeding by disconnecting your home from the utility grid before the generator provides power.

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

The Windham, ME homeowners’ guide to generator installs

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