Top-rated generator install pros.

Get matched with top generator install pros in Dedham, MA

Enter your zip and get matched with up to 5 pros

Need a pro for your generator install project in Dedham, MA?

Select your specific project to find the pro for you.

TRUSTED BY DEDHAM, MA HOMEOWNERS

  • Average homeowner rating star icon4.1
    Average homeowner rating
  • Verified reviews icon16
    Verified generator installs reviews

Verified Reviews for Generator Install pros in Dedham, MA

*The Angi rating for Generator Install companies in Dedham, MA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

*The HomeAdvisor rating for Generator Install companies in Dedham, MA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

Last update on April 22, 2026

Find Generator install pros in Dedham

Avatar for Champion Electrical Services Inc
Champion Electrical Services Inc
5.0(
54
)

Serving Dedham, 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

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

Serving Dedham, MA and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1948

Free estimates

Emergency services offered

"generator installation and outdoor lighting"
Navien Install
Backflow
Outdoor Shower
Well Tank Replacement
Filtration Installation

+62

68 neighbors recently requested a quote
Recommended by89%of homeowners
Request Quote
Avatar for DES Systems
DES Systems
4.7(
159
)

Serving Dedham, MA and surrounding areas

Approved

Super Service Award Winner

In business since 1986

Free estimates

Emergency services offered

"Steve was excellent at communication start day/time as well as showing up when plannned. He went right to work and let me know of progress along the way. I have an old house and he managed to install new electrical with minimum disruption. Great experience."
New Electric Panel & Generator Tra
Automatic gas powered standby generator
Generator Transf. Switch ., Elec. & Alarm pan
Response time8 hrs
7 neighbors recently requested a quote
Recommended by66%of homeowners
Request Quote
Avatar for Kevin Burns Electrician
Kevin Burns Electrician
5.0(
27
)

Serving Dedham, MA and surrounding areas

Approved

In business since 2019

Free estimates

Offers commercial services

"Kevin is very good, honest and personable. He is the only electrician I use. I have hired him on several different projects at my home and I am Very Fussy and demand quality work from all contractors."
Duxbury Standby generator
Panel interlock 200a
Panel interlock and panel change 200a
100a generator transfer switch
Commercial relay cabinet

+4

Response time2 hrs
Recommended by100%of homeowners
Request Quote
Avatar for NETR Inc
NETR Inc
4.7(
78
)

Serving Dedham, MA and surrounding areas

Approved (Corporate)

In business since 1989

Free estimates

Emergency services offered

"The technician was personable and arrived on time. He answered all of my questions. He even had the office call me the same day with regard to an inquiry about getting a new furnace."
SOUTH END CONDO RECEIVES MITSUBISHI DUCTLESS SYSTEM
SOUTH END CONDO RECEIVES MITSUBISHI DUCTLESS SYSTEM
SOUTH END CONDO RECEIVES MITSUBISHI DUCTLESS SYSTEM
Additional Photos
Additional Photos

+9

24 neighbors recently requested a quote
Recommended by91%of homeowners
Request Quote
Avatar for Cotti Johnson HVAC, Inc.
Cotti Johnson HVAC, Inc.
4.3(
63
)

Serving Dedham, 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 time10 hrs
Response rate94%
106 neighbors recently requested a quote
Request Quote
Avatar for Landry Mechanical, Inc.- Electrical
Landry Mechanical, Inc.- Electrical
4.5(
107
)

Serving Dedham, MA and surrounding areas

Approved

In business since 2008

Emergency services offered

Warranties offered

"Very professional, polite and knowledgeable. Gave me several options to think about. They showed up on time and we're very thorough."
Ductless Install
Various photos
Various photos
Various photos
Various photos

+52

Response time2 days
102 neighbors recently requested a quote
Recommended by84%of homeowners
Request Quote
...
Showing 1-10 of 153
Generator Install questions, answered by experts

Generators are usually sized by running watts and starting watts. Ideally, you’ll want a generator that can offer both the necessary running watts and starting watts for everything you need to power without going beyond 90% of its capacity. Calculate your home’s electrical load based on the breakers in your home or adding up the appliance and lighting needs of connected rooms.

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.

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.

In most cases, there are no tax credits available for home generators. However, that’s a general statement that applies to federal tax credits, so you might have access to state or local tax incentives. You can check the Database of State Incentives for Renewables & Efficiency (DSIRE) for more information about your area. If you hire a reliable home generator installer, they should also know if there are any state or local perks you can use to reduce your installation costs, including tax breaks and rebates.

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 Dedham, MA homeowners’ guide to generator installs

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

See all articles