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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon55
    Verified generator installs reviews

Find Generator install pros in Stow

Harland Electric Inc
4.9(
137
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Stow, MA and surrounding areas

Approved

In business since 1996

Free estimates

Emergency services offered

"I had Harland Electric come out and check out my electrical panel due to an issue where the electric dryer kept tripping the circuit breaker. (There was water near the breaker that I observed when it did this.) I had a few other minor things I wanted to have them check at the same time. The guys (Kevin and Derek) were great and knowledgeable and recommended I replace the panel due to the corrosion. I got an e-mail from Bill Harland who gave me information on what my options were and some estimates. I asked a bunch of questions and Bill was a great help in making a final decision. I felt he was honest about his recommendation as I debated doing a more expensive upgrade and Bill felt for my situation it would be overkill. I opted for a full replacement 100amp with the feed from the outside. (My house is very small and 100 amps has always been more than sufficient) Kevin and Mike showed up on time for the appointment and did an awesome job on the replacement. The work was high quality, neat and professional. The guys were also great around the young children (2 and 5), they very friendly and even my wife was comfortable (and that's impressive). They cleaned up completely and even took care of a couple of additional things that I had hoped (but didn't expect) they'd be able to get to. There were no surprises with the bill and within the estimate (even with the extra stuff). Judy in the office was also very nice and great with setting up schedules and dealing with the deposit. I will definitely use Harland again if I need electrical work done."
Additional Photos
Response time2 days
6 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for VMA Electric Inc
VMA Electric Inc
4.8(
464
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Repair+4 more

Serving Stow, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2005

Free estimates

Emergency services offered

"Victor and his crew were fantastic. He provided a free estimate and honored it to the cent after all was said and done. Proper permits were obtained and the work inspected. Not only was everything functional, but Nick and crew were very concerned with aesthetics and even hidden wiring was very neat and tidy. The work was completed quickly and Victor handled all of the coordination with the necessary sub-contractors. Victor was always available and willing to be bombarded with questions before, during, and after the work and made sure all of our requests for this and that were honored. We would definitely recommend for generator installation and other electrical projects."
Needham Project
22kw Generac
27kw
Response time8 hrs
24 neighbors recently requested a quote
Recommended by94%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 Stow, 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

221 neighbors recently requested a quote
Avatar for T K Lyden Electric & Generator, Inc.
T K Lyden Electric & Generator, Inc.
3.9(
114
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install+1 more

Serving Stow, MA and surrounding areas

Approved

In business since 1994

Free estimates

Emergency services offered

"Very responsive, came out for a quote in a timely manner which I can't say many others did. Has responded quickly to my emails to answer any question I have posed. The crew came on time to position the generator and had it in place as described. As soon as Tim and Robert were notified of gas connection they scheduled final install, showed up exactly on time and completed work in a very professional manner. Very happy with the entire process."
 Your standard 10 circuit
 Generac Whole House 20kW
 Mike and Will with a new 20kW
 Generac 20kW
 A

+45

Response time1 day
38 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Nichols Electric
Nichols Electric
4.6(
175
)
Portable Generator - Install

Serving Stow, MA and surrounding areas

Approved

Super Service Award Winner

In business since 1987

Free estimates

Warranties offered

"He was on time professional and did quality work. He explained how to use the generator and left written instructions. He was personable. His name was Brian"
Response time7 hrs
14 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for NETR Inc
NETR Inc
4.7(
78
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Stow, MA and surrounding areas

Approved (Corporate)

In business since 1989

Free estimates

Emergency services offered

"The technicians Gregg and Caleb did a great job. They were courtesy, knowledgeable, hard working and arrived on time. They explained every step of the process to me. I will use N.E.T.R Inc. in the future."
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

31 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Michael J Roberts
Michael J Roberts
5.0(
11
)
Fixed Generator - InstallPortable Generator - Install

Serving Stow, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2017

Free estimates

Emergency services offered

"Michael came to my house and upgraded my 100 amp panel to a 200 amp panel for my solar installation project I had coming up. He was very thorough in explaining all the work that needed to be done, how long I would be without power, and was very knowledgeable in all of the questions I had. After removing my service and replacing it with the new 200 amp, he went through the entire house and checked what each breaker was wired to and marked it inside my panel very neat and organized. Couldn’t be happier with the experience from start to finish. If you need any work done to your home I highly recommend Mike and I will definitely be contacting him in the future if I ever need any other work done. Thanks Mike!!!"
House remodel
House remodel
House remodel
Hot tub
House remodel

+5

Response time8 hrs
Response rate90%
14 neighbors recently requested a quote
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Generator Install questions, answered by experts

It’s usually better to repair your generator if it isn’t working properly, as it will typically be much more affordable and should yield similar results. Generator repairs cost around $300 on average, while installing a new whole-house generator costs around $5,000 on average. The only exception is if you know your generator is reaching the end of its useful life, usually between 30 and 40 years. If you have an older generator, you could face multiple repairs in the coming years, which might mean that a full replacement will be more cost-effective over time.

It is safe to run a generator continuously, but you must follow safety protocols to ensure personal and home safety. Read the manufacturer’s instructions for specific recommendations, but the general recommendation is to turn generators off overnight or when you’re away from the house. Overworked generators can pose a fire hazard and if your generator is not in a well-ventilated area, running it continuously could lead to carbon monoxide poisoning.

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. 

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.

Energy output depends on turbine size, average wind speed at your site, and system efficiency. A 5 kW turbine in a good wind location can generate 8,000 to 12,000 kilowatt-hours per year, which may cover a large portion of an average home’s needs. Accurate output estimates require a professional wind assessment and a review of your household’s energy usage patterns.

The Stow, MA homeowners’ guide to generator installs

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