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Avatar for Paul Foley Electric Co., Inc.
Paul Foley Electric Co., Inc.
4.8(
99
)

Serving Brewster, MA and surrounding areas

Approved

In business since 1992

Free estimates

Emergency services offered

"Great company to work with. Wonderful staff and clear explanations every step of the way. Did everything they said they would do when they said they would do it. Very tidy and no mess despite having to excavate to put in the oil tank for the generator. Installation was done quickly and efficiently. Two years later all working very well and good annual service agreement. Would absolutely work with this company again and recommend them to anyone."
Auto Transfer Switch
Connection to propane tanks
Housekeeping pad
Trenching
Custom Poured Pad

+13

Response time12 hrs
142 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for Champion Electrical Services Inc
Champion Electrical Services Inc
5.0(
54
)

Serving Brewster, 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

225 neighbors recently requested a quote
Springer Electric, Inc.
5.0(
3
)

Serving Brewster, MA and surrounding areas

Approved

In business since 2009

Free estimates

Credit card accepted

We have over 15 years of experience serving Barnstable county with all of their electrical needs. We take on a wide range of electrical projects to include full installation for additions and remodels as well as generator installs, service change-outs and panel upgrades, and a variety of other jobs. We take pride in our quality of work and our commitment to outstanding results. Our services are customizable based on the specific project needs of each homeowner and business. We look forward to building strong, long-term relationships with all of our clients. Give us a call today to learn about how we can meet all of your electrical needs!\n

Recommended by100%of homeowners
Avatar for Northeast Power, LLC
Northeast Power, LLC
5.0(
3
)

Serving Brewster, MA and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"My solar inverter stopped working in my existing solar system, and since my original installer went out of business, I had a hard time finding someone to replace the inverter provided by SolarEdge. It was a small job, and most large companies weren’t interested, while those willing to help were booked out for at least a couple of months. I contacted Justin, and he replaced the inverter within just a few days. He was very friendly, efficient, and offered a very reasonable price. Justin was also extremely knowledgeable, explained everything clearly, and kept me updated throughout the process. He arrived on time, completed the work neatly, and made sure the system was running perfectly before leaving. Overall, his professionalism, honesty, and dedication to customer satisfaction made the whole experience stress-free and smooth."
Northeast Power
Northeast Power
Northeast Power
Northeast Power
Northeast Power

+2

19 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for NAX Electrical Services, LLC
NAX Electrical Services, LLC
4.4(
7
)

Serving Brewster, MA and surrounding areas

Approved

In business since 2022

Emergency services offered

Small jobs welcome

"I highly recommend Juan Pimentel for all your electrical needs. I have hired him twice, and he has exceeded my expectations. Juan is very punctual, reliable, courteous and extremely safety conscious. He really knows his business and is a consummate professional. He answers all communications promptly (which I cannot say for many contractors I have hired) plus he goes the extra mile. He even vacuums his work area when he is done! This is the man you want doing your electrical job."
The Lofts
The Lofts
Response time2 hrs
Response rate85%
Recommended by85%of homeowners
Avatar for JP Mechanical Contractors, LLC
JP Mechanical Contractors, LLC
5.0(
3
)

Serving Brewster, MA and surrounding areas

Approved

In business since 2008

Free estimates

Offers commercial services

"Julius was very professional and returned all calls and questions promptly …. We enjoyed meeting him and when he said he was going to follow up on anything we needed, he did… We highly recommend using JP Mechanical Contractors… If the need to use this company again comes up, , we certainly would call Julius… Danka Piekarski"
Response time3 hrs
Recommended by100%of homeowners
Avatar for FM Generator
FM Generator
4.5(
21
)

Serving Brewster, MA and surrounding areas

In business since 1970

Free estimates

Emergency services offered

"We did every thing by Email and text messaging. The installation went very smooth. The installers were prompt respectful, and rite on time. I would hire FM Generator if I had to. It was a pleaser to work with them."
Additional Photos
Additional Photos
Additional Photos
Response time1 day
22 neighbors recently requested a quote
Recommended by100%of homeowners
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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.

Most homeowners won't be able to claim a home generator as a tax write-off. However, a whole-house generator may be tax-deductible in certain situations depending on its purpose. For instance, if it's needed to power essential medical equipment, it may qualify as a medical expense deduction. Also, in some cases, businesses can deduct a generator as a business expense if it supports operations. Always consult a tax professional to determine eligibility based on your specific circumstances and the applicable IRS regulations.

The amount of time a standby generator can run continuously is around 3,000 hours on average. However, standby generators can generally run indefinitely as long as they have a continuous fuel supply. Generators hooked up to a home’s natural gas supply are the best option for extended usage, as these won’t rely on a finite fuel supply based on how much you have in storage. Generators running on liquid propane or diesel won’t last as long, as these require fuel storage and regular refueling to stay running.

A 1,500 square foot home will likely need a 15kW to 20kW generator. When deciding on whole-house generator size, add up the total wattage of the devices that you’d like to continue running during a power outage. That way, you can ensure you purchase a generator that can power your necessary appliances or medical equipment during an electrical emergency.

To reduce AC startup power for a whole-house generator, install a soft start kit or hard start capacitor, which lowers the initial surge by gradually ramping up the compressor. Using a smart load manager can also help by staggering startup loads, preventing a system overload and future costly repairs.

The Brewster, MA homeowners’ guide to generator installs

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