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Verified Reviews for Generator Install pros in Watertown, CT

*The Angi rating for Generator Install companies in Watertown, 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 Watertown, 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 July 29, 2026

Find Generator install pros in Watertown

Avatar for Connoles Electric, LLC
Connoles Electric, LLC
4.8(
82
)
Generator - Install - For BusinessPortable Generator - Install

Serving Watertown, CT and surrounding areas

Approved

In business since 1984

Free estimates

Credit card accepted

"Ted and Robert arrived, got right t to it and within a few hours we had 2 ceiling fans installed, one which had no existing light so it was a more involved project. They were professional and stuck to their original quote! To say we are impressed is an understatement. We strongly recommend using Connole Electric."
2 neighbors recently requested a quote
Recommended by98%of homeowners
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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 Watertown, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2009

Free estimates

Credit card accepted

"Great job by On The Grid. Help me out with installing electrical on my new patio. Very knowledgeable, neat, and easy to work with. Would definitely hire them again for any electrical needs."
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%
9 neighbors recently requested a quote
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Avatar for Swanson Electric, LLC
Swanson Electric, LLC
5.0(
35
)
Portable Generator - Install

Serving Watertown, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Emergency services offered

"Troy was great. He installed our vehicle charger super fast and everything was perfect. He was very fair with his price quote as well!!"
Panel
Response time5 hrs
Response rate100%
22 neighbors recently requested a quote
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Avatar for Mikell Electric
Mikell Electric
4.5(
32
)
Fixed Generator - InstallPortable Generator - InstallGenerator - Install - For Business

Serving Watertown, CT and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"Matt was friendly and did a great install. Iâ ll hire them again."
Response time3 days
148 neighbors recently requested a quote
Recommended by75%of homeowners
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Avatar for MGT Electrical Services
MGT Electrical Services
5.0(
11
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Repair - For Business+1 more

Serving Watertown, CT and surrounding areas

Approved

In business since 2021

Free estimates

Warranties offered

"They came out in the middle of a storm and promptly hooked the generator to my panel. While I thought I’d be running extension cords to my appliances it turned out that the whole house was up and running. I wish I had done this earlier. I would recommend MGT for any electrical needs. I will surely use them again."
31 neighbors recently requested a quote
Recommended by90%of homeowners
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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 Watertown, 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

51 neighbors recently requested a quote
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Avatar for Supreme Electric, LLC
Supreme Electric, LLC
4.1(
122
)
Fixed Generator - Install

Serving Watertown, CT and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"Excellent and speedy installation of my doorbell camera. I will call again."
BETTER BUSINESS BUREAU RATING
Recessed and pendant lighting
Home theatre wiring and lighting
Whole house generator wiring
Generator install

+49

Response time3 hrs
Response rate94%
47 neighbors recently requested a quote
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Avatar for MB Electric
MB Electric
4.9(
8
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Watertown, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2022

Free estimates

Emergency services offered

"MB Industries, LLC did a masterful job on my project. The owner, Matt, was on-time, personable, polite, professional, and skilled. He was meticulous in getting the job done right?not just ?good enough.? I will reach out to MB Industries LLC in the future. Thanks again Matt. 5 stars for sure!"
MB Industries
MB Industries
MB Industries
MB Industries
MB Industries

+46

Response time8 hrs
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Avatar for Firemans Services LLC
Firemans Services LLC
5.0(
4
)
Portable Generator - Repair

Serving Watertown, CT and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

Firemans Services LLC is a trusted, locally owned electrical contracting company dedicated to delivering safe, reliable, and high-quality electrical solutions. We specialize in residential and light commercial work, including service upgrades, panel replacements, generator installations, and custom electrical projects.\n\nWith a strong commitment to craftsmanship and customer satisfaction, our team takes pride in doing the job right the first time—on schedule and within budget. Whether you need a full service upgrade, backup power solutions, or everyday electrical repairs, Firemans Services LLC is your dependable choice for professional service you can count on.

Meter
Tesla Charger
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Avatar for Mister Sparky Electric
Mister Sparky Electric
4.2(
6
)
Fixed Generator - InstallPortable Generator - InstallGenerator - Install - For Business

Serving Watertown, CT and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

"Installed the bathroom fan/light which wasn’t super easy, they had to crawl through insulation in the attic. Also changed out the broken switch on the outlet while they were there which was nice. Not terribly pricey"
Install Ceiling fan
security camera
Response time7 hrs
74 neighbors recently requested a quote
Recommended by20%of homeowners
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Generator Install questions, answered by experts

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. 

If your home already has a grinder pump and you’re still noticing issues (like frequently clogged toilets and sinks), it could be time to upgrade your grinder pump. Start by checking your existing horsepower. If there are four or fewer people living in your home, using a 1/2-horsepower grinder pump should be sufficient. Larger households should consider investing in a 1-horsepower grinder pump to maximize wastewater removal efforts.

While diesel is relatively stable, it won’t last nearly as long as propane and you may have to replace it if it sits unused for too long. Diesel can sometimes struggle to work efficiently or start engines during especially cold weather, so it’s not the best choice for every climate. Compared to fuels like propane and natural gas, diesel generators tend to be noisier and create more exhaust, which isn’t always ideal for home use.

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.

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 Watertown, 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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