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Verified Reviews for Generator Install pros in Manchester, CT

*The Angi rating for Generator Install companies in Manchester, 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 Manchester, 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 09, 2025

Find Generator install pros in Manchester

Avatar for R A Buckley & Son Electrical Contractors, LLC
R A Buckley & Son Electrical Contractors, LLC
4.8(
49
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Manchester, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2000

Free estimates

Offers commercial services

"He is extremely attentive to your needs . What he says will happen , does! He keeps all appointments and thoroughly explains what he plans to do. He is one of the most reliable, ethical , conscience businessman I have ever dealt with. I have recommended him to friends . He actually went out of his way to help Ill friends deal with their generator problems even though he had not installed it. He made arrangements for someone to fix the generator when he was not able. Highly recommended !"
Response time5 hrs
Response rate90%
2 neighbors recently requested a quote
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Avatar for MT Electric, LLC
MT Electric, LLC
5.0(
29
)
Portable Generator - Install

Serving Manchester, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2016

Free estimates

Warranties offered

"Mark of MT ekectric did a fantastic job with work at our house! He upgraded 200 amp panel, installed whole house 22kw generac generator, ran 90 feet of underground wire. Always early to start work, professional, very clean look for panel and outside generator looks great. Handled final start up with generac as well and coordinated everything throughout the job. Highly recommend!!"
Response time6 hrs
Response rate91%
6 neighbors recently requested a quote
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Avatar for OnTheGrid Electric , LLC
OnTheGrid Electric , LLC
5.0(
12
)
Fixed Generator - InstallGenerator - InstallGenerator - Install - For Business+1 more

Serving Manchester, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2009

Free estimates

Credit card accepted

"I have hired OnTheGrid for multiple projects and am always satisfied with their work. Doug and Mark are honest and fair, and won't do a job the wrong way. They are my first choice in electrical contractors, and I will be reaching out to them again soon."
Standby generator automatic transfer switch with main panel
Landscape lighting
Fuse panels to be removed in multifamily house with external circuit switches (via insurance requirement)
Portable generator panel interlock
Lighting for a parking lot

+16

Response time1 day
Response rate100%
8 neighbors recently requested a quote
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Avatar for Crown Joules Electric, LLC
Crown Joules Electric, LLC
5.0(
67
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Manchester, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2022

Free estimates

Credit card accepted

"Juan did a fabulous job installing my bathroom fan. I could not be happier. I would highly recommend Crown Joules Electric."
Response time2 days
Response rate95%
10 neighbors recently requested a quote
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Avatar for TJF Electric LLC
TJF Electric LLC
5.0(
18
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install+1 more

Serving Manchester, CT and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

"I hired AJP Electrician for two separate jobs. Tyler is awesome, he gets back to you when booking an appointment immediately. Shows up on time. Cleans up after himself 100% . His prices are very good. Not to mention he is very accommodating and super friendly."
recessed lights
recessed lights
recessed lights
recessed lights
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Avatar for Anchor Electric Motor, LLC
Anchor Electric Motor, LLC
4.7(
46
)
Portable Generator - Repair

Serving Manchester, CT and surrounding areas

Approved

In business since 1950

Free estimates

Credit card accepted

"Such a wonderful person. Came to fix my portable generator. Very pleasant and knowledgeable. Fixed my generator quickly and instructed me on ways to keep generator in best condition."
Response time1 day
Recommended by95%of homeowners
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Avatar for Onlehane, LLC
Onlehane, LLC
4.8(
10
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Manchester, CT and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"Tim is great. I highly recommend for any electrical project."
Industrial Solar Project
Residental Generator Install
Residental Generator Install
Commercial Solar Project
Kitchen Remodel

+10

Response time1 day
Response rate95%
Recommended by100%of homeowners
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Avatar for Tradesmen Energy Solutions LLC
Tradesmen Energy Solutions LLC
5.0(
9
)
Generator - Install - For Business

Serving Manchester, CT and surrounding areas

Approved

In business since 2022

Free estimates

Credit card accepted

"2 months went through 3 electrians who canceled. With Trademen went from first contact to job completion in 3 days"
Bedroom Lighting upgrade
Bedroom Lighting upgrade
My jobs
My jobs
My jobs

+10

5 neighbors recently requested a quote
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Avatar for A.I Electric
A.I Electric
5.0(
14
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Manchester, CT and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"I had a great experience with their service got exactly what I asked for. The contractor was very professional and polite. I would recommend if u want somethig done precise."
Service Change
Service Change
Service Change
Service Change
Service Change

+111

44 neighbors recently requested a quote
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Avatar for Diamond Electrical Services
Diamond Electrical Services
5.0(
5
)
Portable Generator - InstallGenerator - Install - For Business

Serving Manchester, CT and surrounding areas

Approved

In business since 2024

Free estimates

Small jobs welcome

"I hired this person to setup my 13,000 watt portable duel fuel generator for backup power to mu home. He did excellent work and am going to recommend him to everyone I know."
Stairway Lighting
Stair lighting
Distance picture
LED couch lighting
Response time6 hrs
Response rate89%
18 neighbors recently requested a quote
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Generator Install questions, answered by experts

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.

It might seem counterintuitive, but installing a generator transfer switch will save you money in the long run. While you’ll have to pay between $400 and $2,500 to have the transfer switch installed, you’ll recoup that amount later on when you don’t have to pay for expensive repairs to your appliances, devices, and electrical system that may have burned out, overloaded, or stopped working due to a sudden loss of power or an incorrect hook up of a generator to your home. 

In most municipalities, you will need a permit to install a permanent home generator, including emergency backup, partial-home, and whole-home generators. A permit for a generator usually costs between $50 and $250, depending on where you live. Your electrician or certified generator installer will usually pull the permit for you—and might be required to do so by your building department—but you’ll be on the hook for the cost of the permit. You should ask your installer before agreeing to any work if they will pull the necessary permits for your project.

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. 

Carbon monoxide emissions aren’t only dangerous to human life, but they also harm our planet. While natural gas generators emit lower levels of CO than other fuel sources, there are still ways to reduce emission levels. For example, shop around for an eco-friendly generator that complies with current emission standards. Also, make sure your generator is serviced regularly to avoid CO buildup. 

The Manchester, 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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