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Top-Rated Generator install pros in Brockton - Updated Nov 2026

Avatar for Paul Foley Electric Co., Inc.
Paul Foley Electric Co., Inc.
4.7(
79
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Brockton, MA and surrounding areas

Approved

In business since 1992

Free estimates

Emergency services offered

At Premier Energy Solutions, your comfort and safety come first. We protect your home or business with turnkey, worry-free generator installations, HVAC systems, and electrical work — all backed by unmatched reliability and value.\n\nEvery project is handled by licensed professionals using top installation practices. From backup power to heating and cooling to electrical upgrades, we make it seamless, professional, and built to last.\n\nSince 1992, Premier Energy Solutions has grown from a licensed electrical contractor into a full-service power, comfort, and safety provider. We deliver a complete, turnkey experience — design, permitting, installation, testing, and support.\nGenerators. HVAC. Electrical. One trusted team.

40 neighbors recently requested a quote
Recommended by91%of homeowners
Dever Electric
5.0(
59
)
Fixed Generator - InstallPortable Generator - Install

Serving Brockton, MA and surrounding areas

Approved

In business since 2008

Free estimates

Offers commercial services

"Just an outstanding experience end-to-end with Matt. He responded to the outreach within minutes and was able to give me a quote a few hours later that was very fair. We installed an induction stovetop and needed a new 50amp circuit and line run in our old house, crawl space and all. He showed up right on time, and made quick work of it. Very professional and friendly. He even stayed a little longer after the job was complete to help me diagnose another problem. Couldn't recommend him more highly. Would hire him again in a minute."
Response time1 day
Response rate100%
10 neighbors recently requested a quote
Avatar for Champion Electrical Services Inc
Champion Electrical Services Inc
5.0(
57
)
Fixed Generator - InstallPortable Generator - InstallGenerator - Install - For Business

Serving Brockton, 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

+3

184 neighbors recently requested a quote
Avatar for Russell Hansen Electrician
Russell Hansen Electrician
5.0(
67
)
Fixed Generator - Repair

Serving Brockton, 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."
2 neighbors recently requested a quote
Avatar for Bchara Zghaib Electrician - Lic #:58092B
Bchara Zghaib Electrician - Lic #:58092B
4.9(
27
)
Portable Generator - Install

Serving Brockton, MA and surrounding areas

Approved

In business since 2007

Free estimates

Emergency services offered

"The electrician is really good and service is fine. The only thing that matters for me is the price its a little bit more expensive than last time, I'm surprised."
New construction
New construction
New construction
New construction
Additional Photos

+16

Response time2 days
23 neighbors recently requested a quote
Recommended by80%of homeowners
Avatar for Griffin Maintenance Services INC
Griffin Maintenance Services INC
5.0(
47
)
Portable Generator - Install

Serving Brockton, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2008

Free estimates

Small jobs welcome

"Dave and his team have done multiple projects at our home ranging from new outlets for pool pumps to wiring and installing fixtures. They arrived on time and provided meticulous work at reasonable prices. I would highly recommend the Griffin team for future projects."
Demelo Chandelier
Ballast repair
Nurse Call
Parking lot lights
Kitchen Reno 1

+2

Response time8 hrs
Response rate95%
Recommended by75%of homeowners
Avatar for ATriolo Electric, Inc.
ATriolo Electric, Inc.
4.4(
22
)
Fixed Generator - InstallPortable Generator - Install

Serving Brockton, MA and surrounding areas

Approved

In business since 2017

Free estimates

Customers say: Quick response

"Anthony showed up to install transfer switch for my portable generator. Was very professional and personable. Job was done in 2 hours would definitely recommend him and will definitely use him in the future."
Wiring of new home
Wiring of new home
Response time11 hrs
Response rate100%
6 neighbors recently requested a quote
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Showing 1-10 of 174
Generator Install FAQs, answered by experts

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. 

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.

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 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.

To determine the right size generator for your house, you should calculate the total wattage of the appliances and devices you want to power during an outage. List all essential items, note their start-up wattages, and add them together.

Here are some typical wattage requirements for common appliances:

  • Refrigerator: 600 watts

  • Large dehumidifier: 700 watts

  • Large window air conditioner: 1,400 watts

  • Water heater: 3,000 to 4,500 watts

  • Electric furnace: 5,000 to 25,000 watts

A 7,500-watt generator might be sufficient for essentials like a refrigerator, freezer, well pump, and lighting circuits. However, for high-demand items like a water heater or furnace, a whole-home generator is a better choice. A portable generator may be enough if you only need to power a few critical items.

While home square footage can offer a rough estimate, it is not always a reliable indicator. For reference, here are some typical generator sizes based on square footage:

  • 1,000 sq ft: 6–9 kW

  • 1,500 sq ft: 7–10 kW

  • 2,000 sq ft: 10–14 kW

  • 2,500 sq ft: 12–16 kW

  • 3,000 sq ft: 16–20 kW+

For the most accurate sizing, consult a professional who can calculate your home's peak and average power consumption and recommend the optimal generator.

The Brockton, MA homeowners’ guide to generator installs

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