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

Serving Sebago, 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 rate100%
90 neighbors recently requested a quote
Avatar for Bolducs Electrical Contracting
Bolducs Electrical Contracting
4.9(
117
)
Fixed Generator - InstallPortable Generator - Install

Serving Sebago, ME and surrounding areas

Approved

In business since 1995

Warranties offered

Credit card accepted

"We had our service updated to 200amps, the quote was very reasonable and all the work was done in a professional and timely manner. We are very happy with the installation, very neat and clean. Would definitely use them again, and recommend Bolduc Electric to anyone needing a quality electrician."
Tempest Ridge Condo's
Tempest Ridge Condo's
.
Response time8 hrs
Response rate92%
11 neighbors recently requested a quote
Avatar for Power R Point, LLC
Power R Point, LLC
4.4(
19
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Sebago, 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
10 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Casco Bay Generators LLC
Casco Bay Generators LLC
5.0(
5
)
Fixed Generator - InstallFixed Generator - Repair

Serving Sebago, 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
Avatar for Origin Energy, LLC
Origin Energy, LLC
4.6(
11
)
Fixed Generator - InstallPortable Generator - InstallGenerator - Install - For Business

Serving Sebago, ME and surrounding areas

Approved

Super Service Award Winner

In business since 2022

Free estimates

Warranties offered

"I hired this company to do electrical run from my house to my shed. I was so impressed with their work and then reasonable price for the work they did. I had another problem with electric in my kitchen. I called them to come and fix it which they did in a short amount of time for a reasonable price. I would call them anytime."
Completed system
First half of panels
First half progress
Response time2 days
Response rate99%
14 neighbors recently requested a quote
Avatar for RJT Electric LLC
RJT Electric LLC
5.0(
5
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+2 more

Serving Sebago, ME and surrounding areas

Approved

In business since 2022

Free estimates

Warranties offered

"Wes Dingman has performed several jobs for me, including: -Installing new GFCI outlets for a sump pump -Installing 3 new light fixtures -Fixing wiring issues in the kitchen introduced by a previous contractor Wes performs excellent work that is always 100% to code and thoroughly tested before the job is complete. I highly recommend Wes for any residential electrical work!"
Response time1 day
Response rate95%
14 neighbors recently requested a quote
Avatar for Miracle Electric
Miracle Electric
4.9(
7
)
Portable Generator - Install

Serving Sebago, ME and surrounding areas

Approved

In business since 2022

Free estimates

Small jobs welcome

"These pros were absolutely amazing.Talk about "an on-time" company....for the consultation.. So, this was the third company we asked for an estimate!! We were literally blown away when they came in between $800-almost $2000 less than any of the other estimates we got. Yes, we initially were a bit apprehensive, but their Master Electrician laid it out for us, same identical configuration from our electric panel in the unfinished room to the garage for the charger installation. Of, course, why would we not hire them? They had experience with these type of installations. Parker and his guys...were always available if we had "just another"question. Yes, we hired them...and they lived up to everything. Always on time....no hiccups, no changes, just a smooth---no stress---installation. We will always go back to them, if we need electric work to be done. Highly recommend this company. We are so thankful that they got in touch with us from my request at ANGI. Thank you Parker and TEAM!!"
New service and meter/disconnect
Read Street Remodel
PG Photos
Standby Generator
Electric Charger

+5

Response time9 hrs
58 neighbors recently requested a quote
Showing 1-10 of 39
Generator Install questions, answered by experts

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.

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.

An undersized whole-house generator has the potential to overheat and shut down when you try to run a central AC system. This scenario can not only damage the whole-house generator, but can also trip your home’s breakers or cause electrical damage. To avoid this situation, hire a local generator installer to correctly size your whole-house generator.

Portable generators provide backup power for essential appliances during outages and are easy to relocate.

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 Sebago, ME homeowners’ guide to generator installs

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