Top-rated generator install pros.

Get matched with top generator install pros in Needham Heights, MA

Enter your zip and get matched with up to 5 pros

Need a pro for your generator install project in Needham Heights, MA?

Select your specific project to find the pro for you.

TRUSTED BY NEEDHAM HEIGHTS, MA HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon16
    Verified generator installs reviews

Find Generator install pros in Needham Heights

Avatar for VMA Electric Inc
VMA Electric Inc
4.8(
467
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Needham Heights, 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%
18 neighbors recently requested a quote
Avatar for Champion Electrical Services Inc
Champion Electrical Services Inc
5.0(
56
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install+2 more

Serving Needham Heights, 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

238 neighbors recently requested a quote
Avatar for Ryan Cassidy
Ryan Cassidy
5.0(
11
)
Fixed Generator - InstallGenerator - Install - For Business

Serving Needham Heights, MA and surrounding areas

Approved

In business since 1990

Free estimates

Emergency services offered

"I would hire Ryan again in a second! His quality of work was excellent, he was reasonably priced, and he always responded promptly and did his best to work with my schedule while. I plan to recommend him to anyone in need of electrical work!"
Garage Sub Panel
Garage Circuit Lighting/Receptacles
Garage Circuit Lighting/Receptacles
Garage Circuit
Garage Circuit

+73

Response time2 days
2 neighbors recently requested a quote
Recommended by100%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 Needham Heights, 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
68 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Kevin Burns Electrician
Kevin Burns Electrician
5.0(
27
)
Portable Generator - InstallPortable Generator - Repair

Serving Needham Heights, MA and surrounding areas

Approved

In business since 2019

Free estimates

Offers commercial services

"Kevin did an exceptional job installing an EV charger in my garage. His work was meticulously neat, ensuring everything was perfectly straight and tidy throughout. He skillfully managed the setup, maintaining clean and professional aesthetics from the electrical panel to the charger itself. From our initial call to the completed install, the process was smooth and swift, with Kevin keeping communication open and clear. His dedication to detail and quality work was evident in every aspect, making the whole experience impressive. Highly recommend him for his straightforward, professional service. Also, a shout out to Angi’s. This is my 3rd successful project via this service."
Duxbury Standby generator
Panel interlock 200a
Panel interlock and panel change 200a
100a generator transfer switch
Commercial relay cabinet

+4

Response time2 hrs
Recommended by100%of homeowners
Avatar for Cotti Johnson HVAC, Inc.
Cotti Johnson HVAC, Inc.
4.3(
63
)
Fixed Generator - InstallFixed Generator - Repair

Serving Needham Heights, MA and surrounding areas

Approved

In business since 1944

Free estimates

Emergency services offered

"Tim P, Generator Advisor, visited our house and gave on the spot estimatesâ ¦..he was GREAT. Licensed Electrician who knew his business and was easy to speak with. Timely communications and responses to text messages! Tim was helpful answering questions after the generator was installed. We talked to 5 Generac dealers and a Kohler dealer. Cotti-Johnson had the best pricing in the South Shore area. We highly recommend this company. If you are thinking about buying a standby generator, Cotti Johnson is the company to callâ ¦..Art V"
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%
102 neighbors recently requested a quote
Avatar for Landry Mechanical, Inc.- Electrical
Landry Mechanical, Inc.- Electrical
4.5(
108
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+2 more

Serving Needham Heights, MA and surrounding areas

Approved

In business since 2008

Emergency services offered

Warranties offered

"Went out of their way to insure faucet installation after initial install proved defective. Associate went extra mile and drove approximately 25 miles away to get another faucet and made successful installation."
Ductless Install
Various photos
Various photos
Various photos
Various photos

+52

Response time2 days
98 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for Services & More LLC
Services & More LLC
4.8(
29
)
Portable Generator - Repair

Serving Needham Heights, MA and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"I hired this company for spring cleanup, and when they got here they were able to do so much more They edged all my beds. They mulched everything. They filled my new raised beds with loam. They cleaned my two ponds. They went way over and above what I expected, I would recommend them highly to anyone. They .were professional. They were courteous. They left nothing behind. It was absolutely the best experience I’ve had hiring someone in a long time. I couldn’t be happier. I would highly recommend them to anyone for any projects."
Furniture Assembly
Bathroom Remodel
Bathroom Remodel
Bathroom Remodel
Bathroom Remodel

+4

88 neighbors recently requested a quote
...
Showing 1-10 of 148
Generator Install questions, answered by experts

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.

It’s usually better to repair your generator if it isn’t working properly, as it will typically be much more affordable and should yield similar results. Generator repairs cost around $300 on average, while installing a new whole-house generator costs around $5,000 on average. The only exception is if you know your generator is reaching the end of its useful life, usually between 30 and 40 years. If you have an older generator, you could face multiple repairs in the coming years, which might mean that a full replacement will be more cost-effective over time.

It might seem counterintuitive, but installing a generator transfer switch will save you money in the long run. While you’ll have to pay between $400 and $2,500 to have the transfer switch installed, you’ll recoup that amount later on when you don’t have to pay for expensive repairs to your appliances, devices, and electrical system that may have burned out, overloaded, or stopped working due to a sudden loss of power or an incorrect hook up of a generator to your home

Whole-house generators can run continuously for extended periods, even for weeks at a time (around 400 to 500 hours), as long as they have a sufficient fuel supply. However, this type of extensive use will increase wear and tear and can shorten the generator's overall lifespan. During long periods of operation, it's important to check and refill the engine oil as needed, potentially as frequently as daily depending on the model. If your generator uses a fuel tank, ensure it is kept full to prevent unexpected shutdowns.

It is safe to run a generator continuously, but you must follow safety protocols to ensure personal and home safety. Read the manufacturer’s instructions for specific recommendations, but the general recommendation is to turn generators off overnight or when you’re away from the house. Overworked generators can pose a fire hazard and if your generator is not in a well-ventilated area, running it continuously could lead to carbon monoxide poisoning.

The Needham Heights, MA homeowners’ guide to generator installs

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