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Verified Reviews for Generator Install pros in North Windham, CT

*The Angi rating for Generator Install companies in North Windham, CT 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 North Windham, CT 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 November 17, 2025

Find Generator install pros in North Windham

Signature Property Services, LLC

4.89(
71
)
•Approved Pro

Signature Property Services, LLC

4.89(
71
)
•Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
20 years of experience

Signature Property Services, LLC is a family run electrical contractor. We are licensed and insured as well as locally owned and operated. We value our customers and work hard to deliver expert workmanship and excellent customer service. Call us today to discuss your electrical project.

"Signature Property Services offers superlative customer service and quality. Excellent communication from planning project to completion."

Carla D on May 2023

Signature Property Services, LLC is a family run electrical contractor. We are licensed and insured as well as locally owned and operated. We value our customers and work hard to deliver expert workmanship and excellent customer service. Call us today to discuss your electrical project.

"Signature Property Services offers superlative customer service and quality. Excellent communication from planning project to completion."

Carla D on May 2023

Avatar for Phase Out Electric

Phase Out Electric

4.63(
39
)
•Approved Pro

Phase Out Electric

4.63(
39
)
•Approved Pro
Customers say: Quick response
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
18 years of experience

With over 20 years of experience in the electrical industry, there is no challenge technical or aesthetic that Phase Out Electric can't handle. We take on a wide range of electrical projects to include full installation for additions and remodels, as well as wiring and panel upgrades. We also handle specialty trade applications including solar installation and maintenance and commercial electrical service maintenance . We are committed to providing a personalized service for each individual project we take on and look forward to building strong, long-term relationships with our clients.

"The solar company I chose was one of the worst choices I have ever made. Vision Solar went Bankrupt and I had no one to help me when my system went down. I call numerous solar companies and no one would help me. Then I found Phase Out Electric it was an immediate yes after I told them what was going on. My inverter was bad and still under guarantee and they took care of getting it for me. I was kept well informed on what was happening. I will use them again if I have any more problems."

Ben G on September 2024

With over 20 years of experience in the electrical industry, there is no challenge technical or aesthetic that Phase Out Electric can't handle. We take on a wide range of electrical projects to include full installation for additions and remodels, as well as wiring and panel upgrades. We also handle specialty trade applications including solar installation and maintenance and commercial electrical service maintenance . We are committed to providing a personalized service for each individual project we take on and look forward to building strong, long-term relationships with our clients.

"The solar company I chose was one of the worst choices I have ever made. Vision Solar went Bankrupt and I had no one to help me when my system went down. I call numerous solar companies and no one would help me. Then I found Phase Out Electric it was an immediate yes after I told them what was going on. My inverter was bad and still under guarantee and they took care of getting it for me. I was kept well informed on what was happening. I will use them again if I have any more problems."

Ben G on September 2024

Avatar for Extel Communications, Inc.

Extel Communications, Inc.

4.96(
37
)
•Approved Pro

Extel Communications, Inc.

4.96(
37
)
•Approved Pro
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
16 local quotes requested

We're a local family-owned and operated business started in 1987 with hundreds of satisfied customers throughout Connecticut and New York. We install and maintain hosted-cloud and on-premise telephone systems and provide service for your existing telephone system. Additionally, we offer telco & cable company network services, troubleshoot WiFi issues including installing wireless access points for WiFi connectivity, install data, fiber and voice cabling, security cameras and computer networks. Contact us today for a no charge, no obligation survey for all of your telecom and data needs!

"Immediate response. Expert, knowledgeable work. Excellent customer service. Very reasonable price. Would hire them again without question."

Brian M on December 2023

We're a local family-owned and operated business started in 1987 with hundreds of satisfied customers throughout Connecticut and New York. We install and maintain hosted-cloud and on-premise telephone systems and provide service for your existing telephone system. Additionally, we offer telco & cable company network services, troubleshoot WiFi issues including installing wireless access points for WiFi connectivity, install data, fiber and voice cabling, security cameras and computer networks. Contact us today for a no charge, no obligation survey for all of your telecom and data needs!

"Immediate response. Expert, knowledgeable work. Excellent customer service. Very reasonable price. Would hire them again without question."

Brian M on December 2023

Avatar for W B Lightning Rods

W B Lightning Rods

4.93(
297
)
•Approved Pro

W B Lightning Rods

4.93(
297
)
•Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
184 local quotes requested

WB Lightning Rods is a third-generation lightning protection contractor. Family Owned and operated for over 60 years. installing U.L. Listed Lightning protection systems, All Over the East coast, Midwest south east and south west regions of the U.S. Installations on Residential Homes, Estate Properties, Agricultural and Equestrian Properties. Lightning Protection for trees is also available. No job to big or small References upon Request. Contact us today for a no cost or obligation estimate. We look forward to working with you on your Lightning Protection Project. Thank you. **WE ARE NOT ELECTRICIANS** **WE ONLY INSTALL LIGHTNING PROTECTION SYSTEMS **

"We replaced the original roof on our house. I expressed my concerns about re-installation of the lightening rods to my roofer. We have had at least three direct hits since they were originally installed in 2013. My roofer called William who was very helpful. William offered to come out an make sure everything was 100% after re-installation. He came the day after I called and I'm glad he did. While the reinstall was the best he had seen (his words) there were issues after 5 year and 3 strikes that needed addressed. He fixed those and now I have a new roof and I am certain the lightening rods will work as intended. Highly recommend this company."

Jeff W on April 2018

WB Lightning Rods is a third-generation lightning protection contractor. Family Owned and operated for over 60 years. installing U.L. Listed Lightning protection systems, All Over the East coast, Midwest south east and south west regions of the U.S. Installations on Residential Homes, Estate Properties, Agricultural and Equestrian Properties. Lightning Protection for trees is also available. No job to big or small References upon Request. Contact us today for a no cost or obligation estimate. We look forward to working with you on your Lightning Protection Project. Thank you. **WE ARE NOT ELECTRICIANS** **WE ONLY INSTALL LIGHTNING PROTECTION SYSTEMS **

"We replaced the original roof on our house. I expressed my concerns about re-installation of the lightening rods to my roofer. We have had at least three direct hits since they were originally installed in 2013. My roofer called William who was very helpful. William offered to come out an make sure everything was 100% after re-installation. He came the day after I called and I'm glad he did. While the reinstall was the best he had seen (his words) there were issues after 5 year and 3 strikes that needed addressed. He fixed those and now I have a new roof and I am certain the lightening rods will work as intended. Highly recommend this company."

Jeff W on April 2018

Deary Electric & Renovations

4.91(
29
)
•Approved Pro

Deary Electric & Renovations

4.91(
29
)
•Approved Pro
Customers say: True professional
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
24 years of experience

WD Home Services is your local full service expert master electrician, electrical contractor, electrical service, and electrical repairman in Putnam, CT and Windham County, CT. Call for 24 hour emergency services too!

"Shawn and his team do a lot of work for me and I’m pleased with there work and there efficiency"

William S on November 2025

WD Home Services is your local full service expert master electrician, electrical contractor, electrical service, and electrical repairman in Putnam, CT and Windham County, CT. Call for 24 hour emergency services too!

"Shawn and his team do a lot of work for me and I’m pleased with there work and there efficiency"

William S on November 2025

Avatar for Calkins Electric LLC

Calkins Electric LLC

4.95(
138
)
•Approved Pro

Calkins Electric LLC

4.95(
138
)
•Approved Pro
Customers say: Quick response
Recommended by 99% of Angi customers
Recommended by 99% of HomeAdvisor customers
39 local quotes requested

6 employees. No subs. Charges by the hour. travel charges. No service fees. Extra charge for after hours services. You can reach us 24 hours a day, 7 days a week for the service repairs that keep your lights on or keeps them from going out! Maintain your home’s convenience and comfort with service upgrades, new outlet installations, generator installations, and home rewiring. You can even have us install your home theater or surround sound systems. Is your office or production facility experiencing power failures? Let us size your generator or electrical load and install new units or gen trans systems to make sure you have enough capacity. You can even call us to make sure your shore-to-dock power is enough to keep your boat warm and well-lit when you’re aboard. Call us today to get your FREE estimate or to ask about our senior discounts. Get to Know Calkins Electric: •Residential Electrical Work – 24-hour service repairs, service upgrades, generator installations, home rewiring, new outlet installation, and more •Commercial And Industrial Electrical Work – Electrical services sizing, generator package sizing, generator and gen trans systems installation, automatic and manual transfer switches, control work and machine wiring, motor hook ups, and more Your new installations come with a two-year warranty. Our company is fully licensed and insured as well as supremely safety conscious. You can trust us to work safely in your home or business and we have over 25 years of experience. May contact through email. Additional phone - (860) 691-0446. Award winning.

"We were contacted, and after a short conversation, I was told they would try to get to my house that day. They came quickly, and were able to diagnose the problem and repair that which needed fixing!"

Donna Y on November 2022

6 employees. No subs. Charges by the hour. travel charges. No service fees. Extra charge for after hours services. You can reach us 24 hours a day, 7 days a week for the service repairs that keep your lights on or keeps them from going out! Maintain your home’s convenience and comfort with service upgrades, new outlet installations, generator installations, and home rewiring. You can even have us install your home theater or surround sound systems. Is your office or production facility experiencing power failures? Let us size your generator or electrical load and install new units or gen trans systems to make sure you have enough capacity. You can even call us to make sure your shore-to-dock power is enough to keep your boat warm and well-lit when you’re aboard. Call us today to get your FREE estimate or to ask about our senior discounts. Get to Know Calkins Electric: •Residential Electrical Work – 24-hour service repairs, service upgrades, generator installations, home rewiring, new outlet installation, and more •Commercial And Industrial Electrical Work – Electrical services sizing, generator package sizing, generator and gen trans systems installation, automatic and manual transfer switches, control work and machine wiring, motor hook ups, and more Your new installations come with a two-year warranty. Our company is fully licensed and insured as well as supremely safety conscious. You can trust us to work safely in your home or business and we have over 25 years of experience. May contact through email. Additional phone - (860) 691-0446. Award winning.

"We were contacted, and after a short conversation, I was told they would try to get to my house that day. They came quickly, and were able to diagnose the problem and repair that which needed fixing!"

Donna Y on November 2022

Avatar for O'Connell's Electrical Contractors

O'Connell's Electrical Contractors

5.00(
12
)
•Approved Pro

O'Connell's Electrical Contractors

5.00(
12
)
•Approved Pro
137 local quotes requested
7 years of experience

With over 7+ years of experience in the industry, O'Connell's Electrical Contractors is who you need to take care of all your electrical needs. We will always treat your home as well as we would treat our own, and you will be surprised how simple and easy our team will make the whole process seem. CALL US AT (860) 682-0641 TO SPEAK WITH US TODAY!

"Great service, price was reasonable and was extremely timely."

Glenn A on November 2025

With over 7+ years of experience in the industry, O'Connell's Electrical Contractors is who you need to take care of all your electrical needs. We will always treat your home as well as we would treat our own, and you will be surprised how simple and easy our team will make the whole process seem. CALL US AT (860) 682-0641 TO SPEAK WITH US TODAY!

"Great service, price was reasonable and was extremely timely."

Glenn A on November 2025

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Generator Install questions, answered by experts

Generator size requirements vary wildly among properties, but typical generator sizes are listed below based on home square footage:

  • 1,000 sq ft: 6–9 kW

  • 1,500 sq ft: 7–10 kW

  • 2,000 sq ft: 10–14kW

  • 2,500 sq ft: 12–16kW

  • 3,000 sq ft: 16–20kW+

Unfortunately, home square footage isn’t always a good indicator of generator size requirements. Instead, you should call in a professional to discuss which items in your home you’d like to run via your generator. They can calculate peak and average consumption for those items and then size your generator appropriately for optimal performance.

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.

You can expect a diesel generator to last for up to 30,000 hours of use, which works out to 20 to 25 years with the proper maintenance, of course. That depends on how much you use it, so a diesel generator used for emergencies a couple of times a year will last a lot longer than a generator that takes over for a faulty electrical grid every month for a day or two. 

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.

When properly maintained, natural gas generators can last a long time, as much as 20 to 40 years. They have relatively few needs compared to generators with other fuel types. However, the generator’s lifespan ultimately depends on how often the generator is used and for how long it’s left running.

The North Windham, CT 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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