Top-rated generator install pros.

Get matched with top generator install pros in Jefferson, ME

Enter your zip and get matched with up to 5 pros

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

Select your specific project to find the pro for you.

Find Generator install pros in Jefferson

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

Serving Jefferson, 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 Veteran Wire Electric LLC
Veteran Wire Electric LLC
5.0(
5
)
Fixed Generator - InstallGenerator - Install - For BusinessGenerator - Repair - For Business

Serving Jefferson, 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
13 neighbors recently requested a quote
Avatar for JD electrical
JD electrical
New to Angi
Portable Generator - Repair

Serving Jefferson, 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 Mid Maine Generator
Mid Maine Generator
5.0(
18
)
Fixed Generator - InstallGenerator - Install - For Business

Serving Jefferson, ME and surrounding areas

In business since 2010

Free estimates

Emergency services offered

"First class operation, 4 guys showed up early and worked nonstop for 5 hours to complete the install. they took extra care to smooth out the trenches they dug for the propane and wiring. Very professional and an incredibly high quality install."
Another Great Install
Another Great Install
Another Great Install
Another Great Install
Another Great Install

+12

Response time1 day
Recommended by100%of homeowners
Cushnoc Electric
5.0(
5
)
Portable Generator - Install

Serving Jefferson, ME and surrounding areas

In business since 2024

Free estimates

Credit card accepted

"I contacted Cushnoc regarding getting an estimate for wiring a generator. Alex responded to my request that day. He scheduled a time and date for a review of our work needed. Within a couple of days he responded and provided a written estimate along with a date and time to do the job. Excellent customer service! Alex arrived on the date and time to complete the work. Very neat/clean job. Alex is a knowledgeable professional with excellent communication skills. This contractor should be at the top of anyone list requiring electrical work."
Response time2 days
Response rate87%
Recommended by100%of homeowners
Avatar for 2 Rivers Electric
2 Rivers Electric
4.8(
5
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Jefferson, ME and surrounding areas

In business since 2025

Free estimates

Emergency services offered

We can take on a wide range of residential and commercial electrical projects to include full installation for additions and remodels as well as wiring/panel upgrades, and a variety of other projects. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.

Logo
Response time4 hrs
Response rate100%
Showing 1-10 of 18
Generator Install questions, answered by experts

If you have a transfer switch properly installed, the generator and main electrical power cannot feed the system at the same time. However, you should still shut off the power at your main circuit breaker panel before activating the generator. If you do that, you’ll simply need to shut off the generator and reset your circuit breaker once the local power comes back on.

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.

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.

To reduce AC startup power for a whole-house generator, install a soft start kit or hard start capacitor, which lowers the initial surge by gradually ramping up the compressor. Using a smart load manager can also help by staggering startup loads, preventing a system overload and future costly repairs.

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 Jefferson, ME homeowners’ guide to generator installs

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