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  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon10
    Verified generator installs reviews

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

Avatar for VMA Electric Inc
VMA Electric Inc
4.8(
468
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Holden, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2005

Free estimates

Emergency services offered

"From the office folks to the electrician who did the work -- friendly and professional. They quoted the lowest price of three estimates and did the work within a couple of weeks. I purchased my generator elsewhere online... and VMA walked me thru the process of hooking it up, running it, and shutting it down. Very helpful."
Needham Project
22kw Generac
27kw
Response time8 hrs
Response rate100%
15 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 Holden, 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

163 neighbors recently requested a quote
T K Lyden Electric & Generator, Inc.
3.9(
114
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install

Serving Holden, MA and surrounding areas

Approved

In business since 1994

Free estimates

Credit card accepted

T.K. Lyden Electric & Generator Inc. is a family owned electrical contractor with over 50 years of experience serving Central & Western Massachusetts and Southern New Hampshire. We provide complete standby power solutions featuring Generac, Kohler, Briggs & Stratton, Honeywell, and other major brands. Our team offers installation, repairs, warranty service, and annual maintenance plans.

10 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Kevin Kelley Electrical LLC
Kevin Kelley Electrical LLC
4.9(
35
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Holden, MA and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"Kevin installed a power transfer switch and the necessary wiring cables for the system. The work was flawless and completed on schedule! I would definitely use his company services again and highly recommend."
Service upgrade
Response time6 hrs
Response rate98%
1 neighbors recently requested a quote
Avatar for Do Good Electric, LLC
Do Good Electric, LLC
5.0(
18
)
Portable Generator - Install

Serving Holden, MA and surrounding areas

Approved

In business since 2019

Customers say: Quality work

"We couldn t be happier with Dan from Do Good Electric. He was prompt, courteous, and worked with us to stay within budget for our basement remodel. He explained everything he was doing, kept the work areas clean and was extremely respectful of our home and property. We would recommend Do Good Electric to anyone and will absolutely hire him for any future electrical jobs we need."
After photo
Response time12 hrs
28 neighbors recently requested a quote
Recommended by72%of homeowners
Avatar for Brian Gagnon Licensed Electrician
Brian Gagnon Licensed Electrician
5.0(
7
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Holden, MA and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"Brian did a great job with installing outlets and wiring for me. He was very polite and cleaned up after doing the job like he had never even been here. Brian also went a step further and explained what he did so that I understood what he had done while fixing the wiring in my house. I will use him for all my electrical from here on."
Electrical
2 neighbors recently requested a quote
David M. Maynard
4.7(
17
)
Fixed Generator - InstallPortable Generator - Install

Serving Holden, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2010

Free estimates

Offers commercial services

"Dave, was professional and reliable. He did the job very well and returned when we had questions and resolved them. We upgraded our service from 100 to 200 amp electrical service. We also installed a charging port for our new electric car. We are very satisfied with the new service and charge station. I would highly recommend him to others."
Response time5 hrs
3 neighbors recently requested a quote
Recommended by46%of homeowners
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Showing 1-10 of 133
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. 

No, you should never plug a generator directly into a wall outlet in your house. This practice is extremely dangerous, often illegal, and can cause "back-feeding," where power from the generator flows back into utility lines, creating a life-threatening hazard for utility workers. It can also damage your home's electrical system, including appliances like pumps and HVAC fans. If the main power is restored while the generator is connected, it can destroy the generator and cause an electrical fire. To safely connect a generator, you must use a professionally installed transfer switch or an interlocking kit, which prevents back-feeding by disconnecting your home from the utility grid before the generator provides power.

If your home already has a grinder pump and you’re still noticing issues (like frequently clogged toilets and sinks), it could be time to upgrade your grinder pump. Start by checking your existing horsepower. If there are four or fewer people living in your home, using a 1/2-horsepower grinder pump should be sufficient. Larger households should consider investing in a 1-horsepower grinder pump to maximize wastewater removal efforts.

Many services include assembling the unit and securing it in the window. Confirm with your provider.

As a safety measure, you should always turn off the main breaker while operating your generator’s backup breaker. In addition, you should also switch off all appliance breakers so you don't have a power surge when the main breaker turns back on. And finally, turning off the main breaker prevents back-feeding, which endangers utility workers with the risk of electrocution. Back-feeding could also destroy the electrical circuits of your neighbors if they use the same power network.

The Holden, MA homeowners’ guide to generator installs

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