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    Verified generator installs reviews

Find Generator install pros in Avon

Avatar for FM Generator
FM Generator
4.5(
21
)

Serving Avon, MA and surrounding areas

Approved

In business since 1970

Free estimates

Emergency services offered

"FM Generator installed the whole house unit for much less than I thought it would be. They have been servicing it ever since. I am very pleased with the responsiveness of FM Genderator and the quality of their service. I live right on the ocean and the original generator died just before the warranty period. This is primarily due to the corrosive nature of the salt air. They reinstalled a new one quickly. I am very happy with their services, and have recommended them to others in my neighborhood."
Additional Photos
Additional Photos
Additional Photos
Response time1 day
19 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Paul Foley Electric Co., Inc.
Paul Foley Electric Co., Inc.
4.8(
99
)

Serving Avon, 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
119 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for Champion Electrical Services Inc
Champion Electrical Services Inc
5.0(
53
)

Serving Avon, 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]

64 neighbors recently requested a quote
Avatar for Cotti-Johnson Heating-Cooling-Electrical
Cotti-Johnson Heating-Cooling-Electrical
4.7(
165
)

Serving Avon, 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
70 neighbors recently requested a quote
Recommended by90%of homeowners
Eric Dahlquist Electrician
5.0(
14
)

Serving Avon, MA and surrounding areas

Approved

In business since 2010

Customers say: Quality work

"Eric is awesome. Super professional very knowledgeable and he did a great job. He was right on time, very friendly and efficient. He installed a new nest thermostat for me. He also had a very competitive price. I highly recommend working with Eric for all your electrical needs. I’ll certainly call him again in the future."
Response time2 hrs
5 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for Bchara Zghaib Electrician - Lic #:58092B
Bchara Zghaib Electrician - Lic #:58092B
4.9(
26
)

Serving Avon, MA and surrounding areas

Approved

In business since 2007

Free estimates

Emergency services offered

"Helped remedy issue with appliances tripping - also installed surge protector that we did not yet have. Professional, courteous, and efficient. Will definitely hire in the future when I need to have my garage wired"
New construction
New construction
New construction
New construction
Additional Photos

+16

Response time2 days
2 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for Russell Hansen Electrician
Russell Hansen Electrician
5.0(
49
)

Serving Avon, MA and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

"Russell did an outstanding job. He went to our house, saw what had to be done, explained everything, and his fee was more than fair. He did an annual maintenance on our generator (and ordered a spare key for it), installed an electrical outlet (while having to cut away wall & work around studs & water pipes), replaced light switches, disconnected an old intercom system, removed a circuit from breaker box. He will be the professional I call, if I need an electrician. Totally recommend."
14 neighbors recently requested a quote
Avatar for Cotti Johnson HVAC, Inc.
Cotti Johnson HVAC, Inc.
4.3(
63
)

Serving Avon, 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%
105 neighbors recently requested a quote
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Generator Install questions, answered by experts

A 1,500 square foot home will likely need a 15kW to 20kW generator. When deciding on whole-house generator size, add up the total wattage of the devices that you’d like to continue running during a power outage. That way, you can ensure you purchase a generator that can power your necessary appliances or medical equipment during an electrical emergency.

Generally, you’ll want to keep between 60 and 70 feet between the generator and the transfer switch. There are a few reasons for this, including:

  • The distance reduces the noise coming from the generator into your home.

  • It increases efficiency because you won’t have a voltage drop from this short of a distance.

  • Prevents carbon monoxide poisoning: keep at least 15 feet between your generator and an open window. 

To power a central air system during a power outage, the whole-house generator will need to be at least 5,000 watts, and this number will significantly increase for larger units. Check the specific wattage requirements of your AC unit to choose the right generator size. Consider consulting a generator installer to ensure your whole-house generator meets your electrical load needs.

The cost to install a whole-house generator averages $5,200, with a typical price range of $1,500 to $8,900. However, total costs can vary from $400 for a small portable unit to over $18,000 for a large-capacity system. The most significant cost factor is the generator's size and capacity, but other variables include the brand, fuel type, and labor for assembly and installation.

Generator costs can be broken down by type:

  • Portable or Emergency Backup Generators (1kW–7.5kW): $500 to $2,000

  • Partial-Home Generators (9kW–20kW): $2,000 to $6,500

  • Whole-House Generators (22kW–48kW): $5,000 to $18,000

To avoid paying for more power than you need, consider hiring an electrician to calculate the electrical load for your essential appliances. It is also recommended to get at least three quotes to find the best deal for your specific needs and 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. 

The Avon, MA homeowners’ guide to generator installs

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