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Verified Reviews for Generator Install pros in Swampscott, MA

*The Angi rating for Generator Install companies in Swampscott, 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 Swampscott, 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 June 26, 2026

Find Generator install pros in Swampscott

Avatar for JP McCurdy Electrical Services Inc
JP McCurdy Electrical Services Inc
4.4(
527
)

Serving Swampscott, MA and surrounding areas

Approved

In business since 1999

Free estimates

Emergency services offered

"During the walkthrough John was easy to chat with on what we were looking for in this project. We were looking to get some ethernet drops installed so that a new hardwired ethernet and wireless network could be installed by North Shore IT ([*** Link removed ***] Once we agreed to the project, Bill and Nico were easy to work with and were very expedient. They completed the job over a day and a half and did a great job at minimizing the impact to the walls and floors. I would definitely recommend JP McCurdy electrical services to others and would use them again!"
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+9

Response time12 hrs
1 neighbors recently requested a quote
Recommended by83%of homeowners
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Avatar for J M Electrical Company, Inc.
J M Electrical Company, Inc.
5.0(
4
)

Serving Swampscott, 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%
11 neighbors recently requested a quote
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Avatar for Northeast Power, LLC
Northeast Power, LLC
5.0(
3
)

Serving Swampscott, 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

57 neighbors recently requested a quote
Recommended by66%of homeowners
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Avatar for R&D Life Safety Systems LLC
R&D Life Safety Systems LLC
5.0(
6
)

Serving Swampscott, MA and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"R&D have been great to deal with for EV charger installation in our garage. I appreciate all the communication and work that has been done. Very professional service that I would definitely recommend them to anyone."
12 neighbors recently requested a quote
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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.

DIY is possible for basic setups. Professional installation ensures safe and proper electrical connections.

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.

If you have a transfer switch properly installed, the generator and main electrical power cannot feed the system at the same time. However, you should still shut off the power at your main circuit breaker panel before activating the generator. If you do that, you’ll simply need to shut off the generator and reset your circuit breaker once the local power comes back on.

In most cases, there are no tax credits available for home generators. However, that’s a general statement that applies to federal tax credits, so you might have access to state or local tax incentives. You can check the Database of State Incentives for Renewables & Efficiency (DSIRE) for more information about your area. If you hire a reliable home generator installer, they should also know if there are any state or local perks you can use to reduce your installation costs, including tax breaks and rebates.

The Swampscott, 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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