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  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon14
    Verified generator installs reviews

Find Generator install pros in Newton

Avatar for VMA Electric Inc
VMA Electric Inc
4.8(
467
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Newton, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2005

Free estimates

Emergency services offered

"From the office folks to the electrician who did the work -- friendly and professional. They quoted the lowest price of three estimates and did the work within a couple of weeks. I purchased my generator elsewhere online... and VMA walked me thru the process of hooking it up, running it, and shutting it down. Very helpful."
Needham Project
22kw Generac
27kw
Response time8 hrs
Response rate100%
16 neighbors recently requested a quote
Avatar for Champion Electrical Services Inc
Champion Electrical Services Inc
5.0(
56
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Newton, 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]

Hotel 4Homeless Dogs
Pan Mass Challenge
Attleboro Cheer Team
The Autism Corner
Generac Generator

+1

7 neighbors recently requested a quote
Mike Medzhidov
4.8(
160
)
Portable Generator - Install

Serving Newton, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2000

Free estimates

Small jobs welcome

"I hired Mike to rewire and replace the outlets in my home as well as install brand new lighting, outlets and switches in the finished attic. His workmanship is nothing short of exceptional. It's plain to see that Mike is a professional who cares about his work, and more importantly his clients. His pricing is also very competitive. No need to worry about mile-long contracts and being charged hourly on top of exorbitant fees etc. If you are looking for any kind of electrical work to be done in your home, I highly recommend you give Mike a call or text. I guarantee your experience will be as good as mine was!"
Lights
Remodel
Wall washing
Low voltage,  remote transformer,  island lighting
LED undercabinet lighting

+8

Response time7 hrs
Response rate95%
2 neighbors recently requested a quote
Avatar for Champion Electrical Services Inc
Champion Electrical Services Inc
5.0(
56
)
Fixed Generator - RepairPortable Generator - Repair

Serving Newton, 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

81 neighbors recently requested a quote
Avatar for Ryan Cassidy
Ryan Cassidy
5.0(
11
)
Fixed Generator - InstallGenerator - Install - For Business

Serving Newton, MA and surrounding areas

Approved

In business since 1990

Free estimates

Emergency services offered

"Highly recommend Ryan for electrical work. He guided the design, installed everything quickly and managed the inspections. It was great working with him and we love our new kitchen!"
Garage Sub Panel
Garage Circuit Lighting/Receptacles
Garage Circuit Lighting/Receptacles
Garage Circuit
Garage Circuit

+73

Response time2 days
2 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Amaury Castillo Electric
Amaury Castillo Electric
4.9(
186
)
Portable Generator - Install

Serving Newton, MA and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"Mr. Castillo was excellent. Prompt, evaluated the issue & immediately went out to get the necessary supplies needed for a replacement installation of a 30 year old wall heater. Competitive pricing. Would hire again & highly recommend."
Generator
Generator
Generator
Hallway
Hallway before the recessed lights

+6

Response time10 hrs
Recommended by99%of homeowners
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Showing 1-10 of 214
Generator Install questions, answered by experts

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. 

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. 

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.

You may need a permit for a portable generator if you’ll be installing a transfer switch for your primary residence or similar work. Otherwise, a permit for other uses may not be necessary. Check your local building codes or ask a local generator installer for more information about your local regulations.

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.

The Newton, MA homeowners’ guide to generator installs

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