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Verified Reviews for Generator Install pros in Freeport, ME

*The Angi rating for Generator Install companies in Freeport, 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 Freeport, 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 November 16, 2025

Find Generator install pros in Freeport

Avatar for Cote Electric, LLC
Cote Electric, LLC
5.0(
45
)
Fixed Generator - InstallFixed Generator - Repair

Serving Freeport, 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
192 neighbors recently requested a quote
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Avatar for Generator Supercenter of Maine
Generator Supercenter of Maine
4.6(
39
)
Fixed Generator - InstallGenerator - Install - For Business

Serving Freeport, 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%
85 neighbors recently requested a quote
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Payne Electrical Contractors, LLC
4.8(
75
)
Fixed Generator - InstallPortable Generator - Install

Serving Freeport, 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
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Generators of Maine, Inc.
5.0(
5
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Freeport, 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
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Avatar for Merrymeeting Electrical Service
Merrymeeting Electrical Service
4.7(
55
)
Portable Generator - Install

Serving Freeport, ME and surrounding areas

Approved

In business since 2002

Small jobs welcome

Customers say: True professional

"Mike was extremely responsive and timely with his work. He moved our electrical panel out of our wet crawl space, installed a generator switch and broke up some problem problem circuits for us. All for a very reasonable price! We will definitely be calling him again for the new service are installing into our garage."
Merrymeeting Electrical
11 neighbors recently requested a quote
Recommended by95%of homeowners
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Avatar for Power R Point, LLC
Power R Point, LLC
4.4(
19
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Freeport, ME and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"I was not a regular customer (generator) but now I will be."
20RESD Install
Kohler 20RESD Install
Local Restaurant
20kW Kohler Installation
Response time2 days
11 neighbors recently requested a quote
Recommended by93%of homeowners
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Avatar for Solid Ground Electrical Inc.
Solid Ground Electrical Inc.
4.8(
21
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install

Serving Freeport, ME and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"They provided quick service and provided excellent information regarding the root of the issue. Would definitely recommend them to others and go with them again for electrical work."
14 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 Freeport, 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
49 neighbors recently requested a quote
Recommended by98%of homeowners
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Showing 1-10 of 49
Generator Install questions, answered by experts

Whole-house generators can run continuously for extended periods, even for weeks at a time (around 400 to 500 hours), as long as they have a sufficient fuel supply. However, this type of extensive use will increase wear and tear and can shorten the generator's overall lifespan. During long periods of operation, it's important to check and refill the engine oil as needed, potentially as frequently as daily depending on the model. If your generator uses a fuel tank, ensure it is kept full to prevent unexpected shutdowns.

In some situations, yes. Never try to put biofuel into any home generator without checking the specifics first. If a generator has the ability to run on diesel, it can also run pure biofuel (the clear kind made from seed oils, for example). But if you are using biofuel made from animal fats or vegetable oils, the generator will need significant modifications before it can handle a sludgier type of biofuel.

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.

The average cost to install a home generator is $5,200, but total costs can range from $500 to $18,000 or more. The final price depends on several factors, including the generator's size, type, brand, fuel source, and the cost of labor and assembly. The generator's size is the most significant cost factor, as units that can power larger homes with higher energy demands cost more.

Cost breakdowns by generator type are typically as follows:

  • Portable or Emergency Backup Generators (1kW–7.5kW): $500–$2,000

  • Partial-Home Generators (9kW–20kW): $2,000–$6,500

  • Whole-House Generators (22kW–48kW): $5,000–$18,000

To ensure you get the right size unit for your needs without overpaying, consider hiring an electrician to calculate the electrical load of your essential appliances. It is also recommended to get at least three quotes from qualified installers to find the best fit for your budget.

A home that is 2,500 square feet will likely need a 20kW to 25kW generator. Consult your local generator installer to confirm the generator size needed to power your home before purchasing a new one. Be sure to consider how much power your necessary devices need to run.

The Freeport, ME 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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