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Harland Electric Inc
4.9(
137
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Shirley, MA and surrounding areas

Approved

In business since 1996

Free estimates

Emergency services offered

"Bill walked me through checking the outlet and circuits. We solved the problem with no service call needed. Harland has been my electrician since the early 2000's. They have completed many projects/repairs small and large (full panel replacement after water damage to installing a exterior spotlight). Staff answering calls is pleasant and professional, Bill gets back to customers usually the same day."
Response time2 days
1 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for VMA Electric Inc
VMA Electric Inc
4.8(
468
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Shirley, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2005

Free estimates

Emergency services offered

"We have had VMA do a couple of big projects done for us. This last project involved replacing the underground electrical line from the box near the sidewalk to the house. VMA coordinated everything, Eversource disconnect and reconnect, town inspection, excavation, laying of conduit containing the new line, and installation of the new meter. They also installed an additional conduit for a future fiber optic cable. I have recommended VMA to others because of the excellent communication, work ethic, efficiency, good value for the money, courtesy, and quality of work. They solved our difficult electrical problem in a very non-stressful way."
Needham Project
22kw Generac
27kw
Response time8 hrs
Response rate100%
17 neighbors recently requested a quote
Avatar for Champion Electrical Services Inc
Champion Electrical Services Inc
5.0(
56
)
Fixed Generator - InstallPortable Generator - InstallGenerator - Install - For Business

Serving Shirley, 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

78 neighbors recently requested a quote
Avatar for Kevin Kelley Electrical LLC
Kevin Kelley Electrical LLC
4.9(
35
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Shirley, MA and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"Our project was a panel upgrade and generator install. From the first point of contact through point of completion Kevin's level of professionalism, customer service and follow through were beyond exceptional. He is very skilled and knowledgeable in the electrical field. He was able to answer all of our questions and we knew we made the right choice. Once the scope of work was determined and a date/time established he arrived on time and completed the work promptly and neatly. We are extremely pleased with Kevin's work. In fact we have other electrical projects planned in the near future and we will be reaching out to Kevin. For anyone searching for an electrician Kevin is the right person and I can assure you that you will not be disappointed."
Service upgrade
Response time6 hrs
Response rate98%
1 neighbors recently requested a quote
Avatar for Michael J Roberts
Michael J Roberts
5.0(
12
)
Fixed Generator - InstallPortable Generator - Install

Serving Shirley, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2017

Free estimates

Emergency services offered

"Michael came to my house and upgraded my 100 amp panel to a 200 amp panel for my solar installation project I had coming up. He was very thorough in explaining all the work that needed to be done, how long I would be without power, and was very knowledgeable in all of the questions I had. After removing my service and replacing it with the new 200 amp, he went through the entire house and checked what each breaker was wired to and marked it inside my panel very neat and organized. Couldn’t be happier with the experience from start to finish. If you need any work done to your home I highly recommend Mike and I will definitely be contacting him in the future if I ever need any other work done. Thanks Mike!!!"
House remodel
House remodel
House remodel
Hot tub
House remodel

+5

Response time8 hrs
Response rate94%
21 neighbors recently requested a quote
Chair City Electric
5.0(
18
)
Portable Generator - Install

Serving Shirley, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2022

Free estimates

Credit card accepted

Thomas is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our business.

Response time10 hrs
Response rate97%
7 neighbors recently requested a quote
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Generator Install questions, answered by experts

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.

Whole-house generators need to be installed on level ground several feet away from walls and other objects. Because they tap into the electrical system directly, they usually need to be close to your home electrical panel for a transfer switch installation. It also helps with installation if they are near to a gas line or propane tank installation.

While natural gas generators are costly, they’re a great option for standby power due to the reliability of natural gas as a fuel source. Unlike other fuels, natural gas is delivered through underground pipes, making outages extremely rare and less likely to be affected by the elements. As long as the area isn’t prone to earthquakes, they offer an unlimited supply of natural gas that doesn’t degrade over time or require storage in tanks.

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.

You can determine what size generator you need for a transfer switch by matching the switch to the largest outlet on your generator. Larger generators can power up to 10 circuits, while most 5,000-watt generators can provide power to six circuits. So, if your generator’s largest outlet is 30 amps, you’ll need a 30-amp transfer switch.

The Shirley, MA homeowners’ guide to generator installs

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