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Find Generator install pros in Centerville

Avatar for Paul Foley Electric Co., Inc.
Paul Foley Electric Co., Inc.
4.8(
99
)

Serving Centerville, MA and surrounding areas

Approved

In business since 1992

Free estimates

Emergency services offered

"I hired Premier Generator to install a new generator They were very responsive to my calls and gave a very fair snd reasonable quote. I had to wait for their availability, but was well worth the wait. The crew is terrific. All of them are polite and respected my property. Anthony and Sterling was part of the ferric team. Would recommend Premier Generator to anyone thinking about installing a generator."
Auto Transfer Switch
Connection to propane tanks
Housekeeping pad
Trenching
Custom Poured Pad

+13

Response time12 hrs
142 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for Cape Cod Electrical, Inc.
Cape Cod Electrical, Inc.
4.9(
179
)

Serving Centerville, MA and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"Cape Cod Electrical has done several jobs for us and we highly recommend them. Initially, Nick installed our Generac generator and has kept it serviced over the past few years. Then we approached them about installing a mini-split system this spring. Again, they did an outstanding job and when a slight snafu arrived handled it rapidly and professionally. Nick has also done a smaller electrical job for us. We highly recommend them without reservation. Friendly and courteous and definitely interested in doing an excellent job to everyone's satisfaction."
Ripped down service wire due to storm damage
After repair
After repair
Existing center light
New recessed lighting with pendent over island

+10

Response time2 days
Recommended by83%of homeowners
Avatar for Champion Electrical Services Inc
Champion Electrical Services Inc
5.0(
54
)

Serving Centerville, MA and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

At Champion Electrical Services, we believe homeowners deserve better. No more no-shows, rushed work, or upsells you don't need. We built this company to do things right - with respect, craftsmanship, and pride. Every project is treated like it's being done in our own home: clean, code-compliant, and built to last. Whether you need a panel upgrade, EV charger, generator, or quick repair, we show up when it counts and earn your trust every time. \nLicensed, insured, and proudly serving MA & RI. \nWhen the lights go out, don't call just anyone. Call the Champ.\n\n(774) 331-3500 \nCalltheChamp.com \[email protected]

My jobs
My jobs
My jobs
My jobs
My jobs

+17

219 neighbors recently requested a quote
Avatar for Cotti-Johnson Heating-Cooling-Electrical
Cotti-Johnson Heating-Cooling-Electrical
4.7(
166
)

Serving Centerville, MA and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1948

Free estimates

Emergency services offered

"Jason and his team with Cotti-Johnson did an excellent job updating our electrical boxes, installing the washer/dryer hookup, and getting us setup with a generator! Sam, our assigned electrician, even took the time to go through the entire operation of the generator from A-Z. I would definitely recommend them for any electrical work!"
Navien Install
Backflow
Outdoor Shower
Well Tank Replacement
Filtration Installation

+62

Response time10 hrs
64 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Fagnant Electric
Fagnant Electric
4.9(
55
)

Serving Centerville, MA and surrounding areas

Approved

Super Service Award Winner

In business since 1985

Free estimates

Small jobs welcome

"I am extremely pleased with Mike's work. Very professional, very responsive, Kept in touch during the bid and installation process. Very reasonable pricing, showed up on schedule and did excellent work. No surprises. I will definitely use his services again and strongly recommend him to others. Business is based in Sandwich, MA."
Bath remodel
Bath remodel
Bath remodel
Bath remodel
Response time11 hrs
Response rate87%
19 neighbors recently requested a quote
Avatar for Cotti Johnson HVAC, Inc.
Cotti Johnson HVAC, Inc.
4.3(
63
)

Serving Centerville, MA and surrounding areas

Approved

In business since 1944

Free estimates

Emergency services offered

"Expensive but professional. The electrician that did the work was excellent and seemed.to enjoy explaining what he was doing and why it had to be done that way. I felt like I learned something while he installed ceiling lights. He also cleaned up after himself like he'd never been there."
Home Standby Generator Installation
Home Standby Generator Installation
Home Standby Generator Installation
Home Standby Generator Installation
Home Standby Generator Installation

+56

Response time9 hrs
Response rate97%
100 neighbors recently requested a quote
Avatar for Northeast Power, LLC
Northeast Power, LLC
5.0(
3
)

Serving Centerville, MA and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"My solar inverter stopped working in my existing solar system, and since my original installer went out of business, I had a hard time finding someone to replace the inverter provided by SolarEdge. It was a small job, and most large companies weren’t interested, while those willing to help were booked out for at least a couple of months. I contacted Justin, and he replaced the inverter within just a few days. He was very friendly, efficient, and offered a very reasonable price. Justin was also extremely knowledgeable, explained everything clearly, and kept me updated throughout the process. He arrived on time, completed the work neatly, and made sure the system was running perfectly before leaving. Overall, his professionalism, honesty, and dedication to customer satisfaction made the whole experience stress-free and smooth."
Northeast Power
Northeast Power
Northeast Power
Northeast Power
Northeast Power

+2

19 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for NAX Electrical Services, LLC
NAX Electrical Services, LLC
4.4(
7
)

Serving Centerville, MA and surrounding areas

Approved

In business since 2022

Emergency services offered

Small jobs welcome

"I highly recommend Juan Pimentel for all your electrical needs. I have hired him twice, and he has exceeded my expectations. Juan is very punctual, reliable, courteous and extremely safety conscious. He really knows his business and is a consummate professional. He answers all communications promptly (which I cannot say for many contractors I have hired) plus he goes the extra mile. He even vacuums his work area when he is done! This is the man you want doing your electrical job."
The Lofts
The Lofts
Response time2 hrs
Response rate85%
Recommended by85%of homeowners
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Generator Install questions, answered by experts

Many services include assembling the unit and securing it in the window. Confirm with your provider.

Sizing a generator is a careful process that requires calculating the electrical load of your entire house. You have to take into account every device you want to use and their wattage requirements, plus the wattage needed to start them, and look for a generator that can safely run all that at around 80% capacity.

In more practical terms, a small home can run on a 10,000-watt generator (and if you only want to power a few key appliances, much less than that). A mid-sized home may need something between 15,000 and 22,000 watts. Larger homes require 25,000 watts or more. 

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.

You can expect a diesel generator to last for up to 30,000 hours of use, which works out to 20 to 25 years with the proper maintenance, of course. That depends on how much you use it, so a diesel generator used for emergencies a couple of times a year will last a lot longer than a generator that takes over for a faulty electrical grid every month for a day or two. 

No, you should never plug a generator directly into a wall outlet in your house. This practice is extremely dangerous, often illegal, and can cause "back-feeding," where power from the generator flows back into utility lines, creating a life-threatening hazard for utility workers. It can also damage your home's electrical system, including appliances like pumps and HVAC fans. If the main power is restored while the generator is connected, it can destroy the generator and cause an electrical fire. To safely connect a generator, you must use a professionally installed transfer switch or an interlocking kit, which prevents back-feeding by disconnecting your home from the utility grid before the generator provides power.

The Centerville, MA homeowners’ guide to generator installs

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