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Verified Reviews for Generator Install pros in Jefferson, MA

*The Angi rating for Generator Install companies in Jefferson, MA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

*The HomeAdvisor rating for Generator Install companies in Jefferson, MA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

Last update on March 31, 2025

Find Generator install pros in Jefferson

Avatar for VMA Electric Inc
VMA Electric Inc
4.8(
464
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Repair+4 more

Serving Jefferson, 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
22 neighbors recently requested a quote
Recommended by94%of homeowners
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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 Jefferson, 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
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Avatar for Kevin Kelley Electrical LLC
Kevin Kelley Electrical LLC
4.9(
35
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Jefferson, 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
Recommended by91%of homeowners
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Avatar for Do Good Electric, LLC
Do Good Electric, LLC
5.0(
16
)
Portable Generator - Install

Serving Jefferson, 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
20 neighbors recently requested a quote
Recommended by81%of homeowners
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Avatar for Landry Mechanical, Inc.- Electrical
Landry Mechanical, Inc.- Electrical
4.5(
107
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+2 more

Serving Jefferson, MA and surrounding areas

Approved

In business since 2008

Emergency services offered

Warranties offered

"Install one smart thermostat and rewire two other thermostats. Very knowledgeable and great service"
Ductless Install
Various photos
Various photos
Various photos
Various photos

+52

Response time2 days
95 neighbors recently requested a quote
Recommended by84%of homeowners
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Avatar for DYNAMIC POWER SOLUTIONS, LLC
DYNAMIC POWER SOLUTIONS, LLC
4.8(
5
)
Fixed Generator - Install

Serving Jefferson, MA and surrounding areas

Approved

In business since 2023

Free estimates

Credit card accepted

"I needed some new wall outlets in my kitchen, bedroom with all new wiring run and a floor outlet in my family room. Nick did great a great job making sure everything was safe and done to code. I would highly recommend him for your electrical needs."
Recommended by80%of homeowners
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Avatar for Advanced Energy Concepts of Worcester, Inc.
Advanced Energy Concepts of Worcester, Inc.
3.9(
137
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business

Serving Jefferson, MA and surrounding areas

Approved

In business since 1990

Free estimates

Emergency services offered

"Fast service. We did this job 6 mos ago but I held rating until after air conditioning season. Worked perfectly and the ductless system was both quiet and inexpensive to run. Couldnâ  t be happier"
Response time3 days
33 neighbors recently requested a quote
Recommended by48%of homeowners
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Avatar for Heritage Home Service
Heritage Home Service
4.6(
22
)
Fixed Generator - InstallFixed Generator - Repair

Serving Jefferson, MA and surrounding areas

Approved (Corporate)

In business since 2018

Free estimates

Emergency services offered

"We hired Loudon Mechanical to install Daikin mini-splits in our home. The quote was reasonable. Each person in their crew was courteous, prompt, and efficient. They completed our job in two days and left the job site clean. W are extremely pleased with Loudon Mechanical and would highly recommend this company."
Garbage disposal
Bathroom plumbing
Water heater
Water Filtration
Plumbing maintenance

+19

Response time9 hrs
Recommended by84%of homeowners
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Generator Install questions, answered by experts

A home that is 2,500 square feet will likely need a 20kW to 25kW generator. Consult your local generator installer to confirm the generator size needed to power your home before purchasing a new one. Be sure to consider how much power your necessary devices need to run.

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.

Potential benefits of using a natural gas generator include reducing your carbon footprint, lower likelihood of carbon monoxide exposure, budget-friendly operating costs, and low-maintenance, continuous fuel supply. Some possible drawbacks, though, include higher initial installation costs, dependency on a natural gas supply, and installation complexity. Keep in mind that pros and cons will vary based on the type and brand of natural gas generator. 

You may need a permit for a portable generator if you’ll be installing a transfer switch for your primary residence or similar work. Otherwise, a permit for other uses may not be necessary. Check your local building codes or ask a local generator installer for more information about your local regulations.

If you’re wondering if you can use your electric vehicle as a backup battery, it depends on whether your EV is compatible with bidirectional charging. This technology allows energy to flow both ways, enabling vehicle-to-home (V2H) backup power, vehicle-to-load (V2L) for appliances and camping, and vehicle-to-grid (V2G) to support the power grid. Compatible EVs convert stored DC energy into usable AC power, helping reduce energy costs and enhance grid stability while providing emergency backup power.

The Jefferson, MA homeowners’ guide to generator installs

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

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