Top-rated generator install pros.

Get matched with top generator install pros in Roslindale, MA

Enter your zip and get matched with up to 5 pros

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

Select your specific project to find the pro for you.

Find Generator install pros in Roslindale

Avatar for Champion Electrical Services Inc
Champion Electrical Services Inc
5.0(
57
)
Fixed Generator - InstallPortable Generator - InstallGenerator - Install - For Business

Serving Roslindale, 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

+1

131 neighbors recently requested a quote
Avatar for Cotti-Johnson Heating-Cooling-Electrical
Cotti-Johnson Heating-Cooling-Electrical
4.7(
168
)
Fixed Generator - InstallPortable Generator - InstallGenerator - Install+2 more

Serving Roslindale, 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
60 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Cotti Johnson HVAC, Inc.
Cotti Johnson HVAC, Inc.
4.3(
63
)
Fixed Generator - InstallFixed Generator - Repair

Serving Roslindale, 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%
80 neighbors recently requested a quote
Avatar for Castle Electric, Inc.
Castle Electric, Inc.
3.9(
28
)
Fixed Generator - InstallPortable Generator - Install

Serving Roslindale, MA and surrounding areas

Approved

In business since 1997

Free estimates

Emergency services offered

"Lisa and apprentice arrived early and got right to work. The job was not as straight forward as I had believed. After much study, Lisa developed a plan and executed it to perfection. There was excellent team work and no wasted effort or time. The result was great and even though they used contractor supplied parts, they honored their original price. At the end, they thoroughly tested their installation and did a great job in cleaning the area. A light fixture had been dropped and they volunteered to replace it if there was any problem with it (there wasn't). Overall, I was very satisfied with all aspects of this job."
Pendants
Kitchen
Kitchen
Kitchen
Kitchen

+72

11 neighbors recently requested a quote
Recommended by70%of homeowners
Avatar for J M Electrical Company, Inc.
J M Electrical Company, Inc.
5.0(
4
)
Generator - Install - For BusinessGenerator - Repair - For Business

Serving Roslindale, MA and surrounding areas

Approved

In business since 1985

Free estimates

Emergency services offered

"First and foremost, Joel was a pleasure to work with! Joel was extremely knowledgeable and helpful with the installation of our new Google nest. We were impressed with how prompt & easy going he was! Definitely going to be using him & recommending to family & friends."
Response time9 hrs
Response rate97%
8 neighbors recently requested a quote
...
Showing 1-10 of 136
Generator Install questions, answered by experts

While diesel is relatively stable, it won’t last nearly as long as propane and you may have to replace it if it sits unused for too long. Diesel can sometimes struggle to work efficiently or start engines during especially cold weather, so it’s not the best choice for every climate. Compared to fuels like propane and natural gas, diesel generators tend to be noisier and create more exhaust, which isn’t always ideal for home use.

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. 

Here’s what you can run with different wattages and types of generators:

Portable generator:

  • 2,000 watts can handle a large appliance like a freezer or refrigerator, plus a few smaller items like phones or computer chargers. 

  • 4,000 watts will keep two large appliances operating and a few smaller devices.

  • 8,000 watts should power most essential appliances and other devices, including a sump pump, well pump, or your dishwasher.

Partial to whole-house generator:

  • 20,000 watts and above will make it seem like your home’s power is still on.

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.

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. 

The Roslindale, MA homeowners’ guide to generator installs

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