Top-rated generator install pros.

Get matched with top generator install pros in Gray, ME

Enter your zip and get matched with up to 5 pros

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

Select your specific project to find the pro for you.

TRUSTED BY GRAY, ME HOMEOWNERS

  • Average homeowner rating star icon4.9
    Average homeowner rating
  • Verified reviews icon11
    Verified generator installs reviews

Verified Reviews for Generator Install pros in Gray, ME

*The Angi rating for Generator Install companies in Gray, ME 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 Gray, ME 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 June 14, 2025

Find Generator install pros in Gray

Avatar for Cote Electric, LLC
Cote Electric, LLC
5.0(
45
)

Serving Gray, ME and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1987

Free estimates

Credit card accepted

"Djems the tech was personable, professional and thorough. If possible I will ask for him to service our generator in the future. Great to see his work ethic!"
Standby Generator installed in the back of family's home.
Generator Install
Generator Maintenance
Response time3 days
169 neighbors recently requested a quote
Request Quote
Avatar for Generator Supercenter of Maine
Generator Supercenter of Maine
4.6(
39
)

Serving Gray, 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
Request Quote
Payne Electrical Contractors, LLC
4.8(
75
)

Serving Gray, ME and surrounding areas

Approved

In business since 2005

Free estimates

Warranties offered

"I could not have been more pleased with Payne Electrical! From the scheduling to the installation, everyone I worked with was incredibly professional and made the whole process easy. I had two ceiling fans and a light fixture installed. The two electricians that came to my house were prompt and incredibly courteous, and very thorough in their work. They were also super kind about my small dog that wanted to keep barking at them... I would highly suggest this company to anyone in the metro Boston area, and will definitely be calling them for any future electrical needs!"
Response time6 hrs
Recommended by100%of homeowners
Request Quote
Generators of Maine, Inc.
5.0(
5
)

Serving Gray, ME and surrounding areas

Approved

In business since 2014

Free estimates

Offers commercial services

"Generators of Maine just completed the installation of a 14kw generator with parallel transfer switches, to protect 2 separate metered panels at a rental property that I own. I didn't even know that this was possible, until Doug Sawyer suggested it. The incremental cost of protecting the additional panel with the parallel transfer switch arrangement was a fraction the cost of an additional generator and transfer switch. Throughout the job, Doug and his crew were awesome. I am a terrible snoop who enjoys technology, so I hung around just watching and learning. They didn't seem to mind my presence and were friendly and informative through out the install. Every aspect of the job was 100% top-notch. Doug also managed to under bid his nearest competitor on every component and aspect of the job, including the annual maintenance contract, which I deemed to be worth the $$$. I highly recommend Generators of Maine."
Response time4 hrs
Recommended by100%of homeowners
Request Quote
Avatar for Merrymeeting Electrical Service
Merrymeeting Electrical Service
4.7(
55
)

Serving Gray, ME and surrounding areas

Approved

In business since 2002

Small jobs welcome

Customers say: True professional

"Mike took on wiring hookup of complete, electrical controller system for new in-ground pool Pump, Heater, Lighting, Chemical Generation systems. My original electrician passed away unexpectedly having started project some of his work was not to Code. Mike being very professional explained that he would need to change out some of his work. With minimal directions provided by Local Pool Company Mike installed all the component controllers for the Hayward Omni System in accordance with local code requirements. He is very neat in his work, prompt to schedule and I would highly recommend his services."
Merrymeeting Electrical
13 neighbors recently requested a quote
Recommended by95%of homeowners
Request Quote
Avatar for IQ Electric
IQ Electric
5.0(
14
)

Serving Gray, ME and surrounding areas

Approved

In business since 2018

Free estimates

Small jobs welcome

"Adam is such a great electrician. His workmanship is flawless, and his ability to troubleshoot a situation is incredible. His range of abilities allows you to hire him for any job. He installed 15-20 recessed lights in my house, as well dozens of new switches and outlets, an electric wall heater, and even two brand new complete electrical panels (two family home). His pre-work consultation was spot on; there were no surprises. If you want a company that truly offers Integrity and Quality in their work, call IQ Electric."
Pendent Light
Ceiling Fixture
Reay Fun... and Bizzare?
Family Room Lighting Project
Backlit Decora Switches

+2

Response time6 hrs
Response rate95%
Recommended by83%of homeowners
Request Quote
Avatar for Power R Point, LLC
Power R Point, LLC
4.4(
19
)

Serving Gray, ME and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"Jim and his team were great to work with on my generator install. I found the entire team at Power Point to be helpful and professional and the installation went as promised. I would certainly recommend them for any generator installation, maintenance or repair. They know what they are doing."
20RESD Install
Kohler 20RESD Install
Local Restaurant
20kW Kohler Installation
Response time2 days
11 neighbors recently requested a quote
Recommended by93%of homeowners
Request Quote
Showing 1-10 of 46
Generator Install questions, answered by experts

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.

To determine the right size generator for your house, you should calculate the total wattage of the appliances and devices you want to power during an outage. List all essential items, note their start-up wattages, and add them together.

Here are some typical wattage requirements for common appliances:

  • Refrigerator: 600 watts

  • Large dehumidifier: 700 watts

  • Large window air conditioner: 1,400 watts

  • Water heater: 3,000 to 4,500 watts

  • Electric furnace: 5,000 to 25,000 watts

A 7,500-watt generator might be sufficient for essentials like a refrigerator, freezer, well pump, and lighting circuits. However, for high-demand items like a water heater or furnace, a whole-home generator is a better choice. A portable generator may be enough if you only need to power a few critical items.

While home square footage can offer a rough estimate, it is not always a reliable indicator. For reference, here are some typical generator sizes based on square footage:

  • 1,000 sq ft: 6–9 kW

  • 1,500 sq ft: 7–10 kW

  • 2,000 sq ft: 10–14 kW

  • 2,500 sq ft: 12–16 kW

  • 3,000 sq ft: 16–20 kW+

For the most accurate sizing, consult a professional who can calculate your home's peak and average power consumption and recommend the optimal generator.

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.

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. 

Most homeowners won't be able to claim a home generator as a tax write-off. However, a whole-house generator may be tax-deductible in certain situations depending on its purpose. For instance, if it's needed to power essential medical equipment, it may qualify as a medical expense deduction. Also, in some cases, businesses can deduct a generator as a business expense if it supports operations. Always consult a tax professional to determine eligibility based on your specific circumstances and the applicable IRS regulations.

The Gray, ME homeowners’ guide to generator installs

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

See all articles