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TRUSTED BY RANDOLPH, MA HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon22
    Verified generator installs reviews

Find Generator install pros in Randolph

Avatar for Paul Foley Electric Co., Inc.
Paul Foley Electric Co., Inc.
4.8(
99
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Randolph, MA and surrounding areas

Approved

In business since 1992

Free estimates

Emergency services offered

"Great company to work with. Wonderful staff and clear explanations every step of the way. Did everything they said they would do when they said they would do it. Very tidy and no mess despite having to excavate to put in the oil tank for the generator. Installation was done quickly and efficiently. Two years later all working very well and good annual service agreement. Would absolutely work with this company again and recommend them to anyone."
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 Champion Electrical Services Inc
Champion Electrical Services Inc
5.0(
54
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Repair+2 more

Serving Randolph, 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
)
Fixed Generator - InstallPortable Generator - InstallGenerator - Install+2 more

Serving Randolph, 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 Russell Hansen Electrician
Russell Hansen Electrician
5.0(
50
)
Fixed Generator - Repair

Serving Randolph, MA and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

"Russell performed the highest quality installation of the entire electrical system in my new 4 car garage which included high voltage tools like a compressor, lift, welder, heating unit, etc. His design recommendations, availability to answer questions, and overall workmanship made for a great experience. Not only did it exceed my expectations, but also passed inspections with flying colors. If you’re looking for honest, high quality results that from someone who won’t rake you over the coals, call him!"
8 neighbors recently requested a quote
Avatar for Cotti Johnson HVAC, Inc.
Cotti Johnson HVAC, Inc.
4.3(
63
)
Fixed Generator - InstallFixed Generator - Repair

Serving Randolph, MA and surrounding areas

Approved

In business since 1944

Free estimates

Emergency services offered

"Getting an estimate and subsequently replacing an existing backup generator was straightforward. Everything went smoothly and the system is working without any issues. Everyone was polite and professional. Very happy with the company. Highly recommended."
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 ATriolo Electric, Inc.
ATriolo Electric, Inc.
4.4(
22
)
Fixed Generator - InstallPortable Generator - Install

Serving Randolph, MA and surrounding areas

Approved

In business since 2017

Free estimates

Customers say: Quick response

"I called Anthony about installing a transfer switch and outside outlet for a portable generator. He returned my call quickly and discussed the job over the phone. I was given a fair price for parts and labor. He arrived on time for the installation and spent 3.5 hours doing meticulous work. He answered all my questions regarding the installation and operation of the equipment that was installed. He even spent time showing me how to properly operate and care for the portable generator. Anthony was professional, friendly and courteous. I highly recommend him for any project."
Wiring of new home
Wiring of new home
Response time10 hrs
2 neighbors recently requested a quote
Recommended by94%of homeowners
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Showing 1-10 of 143
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.

If you’re deciding between a solar battery versus a generator for the best backup power solution, you can take a few factors into consideration. Solar batteries are quiet while generators can be quite loud. Generators have a lower up-front cost, but they require fuel and ongoing maintenance while solar batteries are more expensive but don’t have many ongoing costs.

A portable generator can supply power to selected appliances and circuits in a home, but it's generally not designed to handle the entire household's electrical needs simultaneously. Portable generators have limited wattage capacity, so they are only designed to power essential devices and electronics temporarily until local power is restored. If your power needs outweigh the capabilities of a portable generator, consider installing a whole-home generator instead.

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.

While diesel is relatively stable, it won’t last nearly as long as propane and you may have to replace it if it sits unused for too long. Diesel can sometimes struggle to work efficiently or start engines during especially cold weather, so it’s not the best choice for every climate. Compared to fuels like propane and natural gas, diesel generators tend to be noisier and create more exhaust, which isn’t always ideal for home use.

The Randolph, MA homeowners’ guide to generator installs

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