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

Serving Waterville, 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
Avatar for Current Solutions Contracting LLC
Current Solutions Contracting LLC
5.0(
6
)
Fixed Generator - Install

Serving Waterville, ME and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"Current Solutions Contracting upgraded our electrical service and replaced our panel and the experience was excellent from start to finish. He explained the process clearly, handled everything professionally, and made sure all work was done safely and up to code. The installation was clean, organized, and completed efficiently. Communication was great and he took the time to answer all of our questions. It?s clear he takes pride in his work and cares about doing the job right. I would absolutely recommend Current Solutions Contracting to anyone needing electrical work."
Heat Pump Installation
Generator Installation
Electrical Panel Upgrade
Electrical Panel Upgrade
Electrical Panel Upgrade

+6

4 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 Waterville, 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 Waterville, 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.

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Generator Install questions, answered by experts

The cost to install a whole-house generator averages $5,200, with a typical price range of $1,500 to $8,900. However, total costs can vary from $400 for a small portable unit to over $18,000 for a large-capacity system. The most significant cost factor is the generator's size and capacity, but other variables include the brand, fuel type, and labor for assembly and installation.

Generator costs can be broken down by type:

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

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

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

To avoid paying for more power than you need, consider hiring an electrician to calculate the electrical load for your essential appliances. It is also recommended to get at least three quotes to find the best deal for your specific needs and budget.

Generators run on a variety of fuel types, ranging from natural gas to solar power. Keep in mind that fuel costs varying by type:

  • Natural gas: $2,000–$21,000 per year 

  • Liquid propane: $2,000–$21,000 per year

  • Diesel: $3,000–$20,000 per year

  • Gasoline: $500–$3,000 per year

  • Solar generator: $2,000–$25,000 per unit

  • Battery backup: $10,000–$25,000 per unit

Natural gas and electricity rates vary significantly based on location, and pricing can change over time, too. It’s possible that in locations where natural gas is particularly inexpensive, it will cost less than grid-based electricity will. However, you should also factor in the generator’s initial costs and maintenance needs, as well as its noise level and if it can comfortably power all your home appliances.

While diesel is relatively stable, it won’t last nearly as long as propane and you may have to replace it if it sits unused for too long. Diesel can sometimes struggle to work efficiently or start engines during especially cold weather, so it’s not the best choice for every climate. Compared to fuels like propane and natural gas, diesel generators tend to be noisier and create more exhaust, which isn’t always ideal for home use.

Costs depend on generator type, labor, and additional wiring or transfer switch requirements.

The Waterville, ME homeowners’ guide to generator installs

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