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Best generator install pros near Hallowell, ME

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Top-Rated Generator install pros in Hallowell - Updated Nov 2026

Avatar for Generator Supercenter of Maine
Generator Supercenter of Maine
4.6(
40
)
Fixed Generator - InstallGenerator - Install - For Business

Serving Hallowell, ME and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

"Drew and the entire crew made this experience seamless. The installers were polite, friendly, competent and and tidy. The pre and post support was fantastic, the expectations around logistics, installation timing and ongoing service support was spot on. These guys are pros and the solution cost was clearly the best in my search for authorized service providers of Generac generators. Hire them you won't go wrong. Vin M Dover NH"
Generator Install
18KW Installation
Preparation for the day
Photos
Response time2 days
Response rate100%
55 neighbors recently requested a quote
Generators of Maine, Inc.
5.0(
6
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Hallowell, 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 by80%of homeowners
Avatar for Casco Bay Generators LLC
Casco Bay Generators LLC
5.0(
5
)
Fixed Generator - InstallFixed Generator - Repair

Serving Hallowell, 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
Response rate92%
13 neighbors recently requested a quote
Avenergy Electric
4.0(
33
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Hallowell, ME and surrounding areas

Approved

In business since 2009

Credit card accepted

Offers commercial services

"Josh is fair and very responsive with his crew of interchangeable professionals who are prompt and professional. My project was a huge undertaking across four apartments involving exterior panel installations and a complete rewiring of the entire building. I worked with about 6 of his crew members spanning months without any meaningful complaint and would depend on them for all my future electrical endeavors. His pricing is very fair for the quality of work you get."
Response time11 hrs
1 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Veteran Wire Electric LLC
Veteran Wire Electric LLC
5.0(
5
)
Fixed Generator - InstallGenerator - Install - For BusinessGenerator - Repair - For Business

Serving Hallowell, ME and surrounding areas

Approved

In business since 2024

Credit card accepted

VETERAN WIRE ELECTRIC LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

Panel
14 neighbors recently requested a quote
Avatar for TJ Electrical and Radon Air LLC
TJ Electrical and Radon Air LLC
New to Angi
Fixed Generator - InstallPortable Generator - Install

Serving Hallowell, ME and surrounding areas

Approved

Free estimates

Emergency services offered

Small jobs welcome

TJ Eectric is a residential electrical contractor, specializing in new construction, remodels, service upgrades and much much more! We are a family owned and veteran owned buisness who strive to provide our customers with the best experience possible, we want you to feel like part of the TJ Electric family, and know that we take pride in our workmanship and transparency! We have all 5-star reviews across all platforms we are listed on and do everything we can to maintain that presence on the job. So if your in need of a highly qualified electrician for your home projects give us a call today!

100 amp Leviton panel upgrade
Service upgrade
New 200a service
Avatar for JD electrical
JD electrical
New to Angi
Portable Generator - Repair

Serving Hallowell, ME and surrounding areas

Approved

Licensed Electrician, fully insured. Trained in commercial, residential and industrial electrical work. I am a certified in solar installation for home or business. I take pride in my work and strive to do the job correctly and 100% by the NEC code. My focus is to perform work right the first time and install everything to make my customers happy with it. I will verify that my customers approve of the course of work that will be completed to satisfy them.

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

Serving Hallowell, ME and surrounding areas

In business since 2002

Small jobs welcome

"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
Recommended by95%of homeowners
Merrymeeting Electrical Service
4.7(
54
)
Portable Generator - Install

Serving Hallowell, ME and surrounding areas

In business since 2004

Free estimates

Emergency services offered

"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."
Response time11 hrs
Recommended by97%of homeowners
Showing 1-10 of 29
Generator Install FAQs, answered by experts

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.

As a safety measure, you should always turn off the main breaker while operating your generator’s backup breaker. In addition, you should also switch off all appliance breakers so you don't have a power surge when the main breaker turns back on. And finally, turning off the main breaker prevents back-feeding, which endangers utility workers with the risk of electrocution. Back-feeding could also destroy the electrical circuits of your neighbors if they use the same power network.

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.

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. 

With proper maintenance, a whole-house generator can last between 20 and 40 years. The specific lifespan depends on how often and for how long the generator is used, and some models may have their life expectancy rated in hours of operation. To maximize its lifespan, expect to spend around $150 to $300 per year for annual maintenance checks from a qualified technician. During these checks, a technician will inspect the engine filter, starting mechanism, fuel, lubrication, and coolant levels. Consulting your installer and choosing a low-impact fuel like natural gas or diesel can also help ensure your generator lasts as long as possible.

The Hallowell, ME homeowners’ guide to generator installs

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