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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 Fairhaven, 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
161 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 Fairhaven, 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

234 neighbors recently requested a quote
Avatar for Southcoast Electrical Services, LLC
Southcoast Electrical Services, LLC
5.0(
47
)
Portable Generator - Install

Serving Fairhaven, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Emergency services offered

"Tough outdoor location to install a Tesla EV charger, but he got it done with exceptional attention to detail. It looks great. Communication was excellent throughout the process. He proposed multiple installation options."
Response time10 hrs
11 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for Cotti-Johnson Heating-Cooling-Electrical
Cotti-Johnson Heating-Cooling-Electrical
4.7(
166
)
Fixed Generator - InstallPortable Generator - InstallGenerator - Install+2 more

Serving Fairhaven, 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
65 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Cotti Johnson HVAC, Inc.
Cotti Johnson HVAC, Inc.
4.3(
63
)
Fixed Generator - InstallFixed Generator - Repair

Serving Fairhaven, 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 time9 hrs
Response rate97%
100 neighbors recently requested a quote
Avatar for Services & More LLC
Services & More LLC
4.9(
25
)
Portable Generator - Repair

Serving Fairhaven, MA and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"Adam called me immediately and met me that same day. I hired the company and they cut my grass that same day. They used a ride on mower and my land is uneven so some areas were shorter than others. Two days later they spread 10 yards of hemlock mulch and recut some areas of my grass with push mower. They will use a push mower in the future. My yard now looks beautifully landscaped. Communication is definately key with this company. They aim to please!!"
Furniture Assembly
Bathroom Remodel
Bathroom Remodel
Bathroom Remodel
Bathroom Remodel

+4

164 neighbors recently requested a quote
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Showing 1-10 of 94
Generator Install questions, answered by experts

With proper maintenance, a whole-house generator can last between 20 and 40 years. The specific lifespan depends on how often and for how long the generator is used, and some models may have their life expectancy rated in hours of operation. To maximize its lifespan, expect to spend around $150 to $300 per year for annual maintenance checks from a qualified technician. During these checks, a technician will inspect the engine filter, starting mechanism, fuel, lubrication, and coolant levels. Consulting your installer and choosing a low-impact fuel like natural gas or diesel can also help ensure your generator lasts as long as possible.

While standby generators provide essential backup power, they can fail when you need them most due to lack of maintenance, fuel supply issues, dead batteries, electrical problems, or improper installation. To avoid costly failures, professional installation and regular maintenance are crucial. Licensed technicians ensure safety, uphold warranty requirements, comply with regulations, and provide expert servicing.

Costs range from $500 to $2,500, depending on generator type and installation complexity.

Setting up utilities on a vacant property usually takes at least a few months, or between 6 weeks to 16 weeks. This process requires working with the local planning and zoning department, hiring a building contractor or engineer to design the utility layout, securing permits, laying the lines, and connecting the utilities.

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 Fairhaven, MA homeowners’ guide to generator installs

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