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TRUSTED BY NORTH HAVEN, CT HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon13
    Verified generator installs reviews

Verified Reviews for Generator Install pros in North Haven, CT

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

Find Generator install pros in North Haven

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 North Haven, 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%
5 neighbors recently requested a quote
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Avatar for Mikell Electric
Mikell Electric
4.5(
29
)
Fixed Generator - InstallPortable Generator - InstallGenerator - Install - For Business

Serving North Haven, CT and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"The Electrician was efficient and professional. He did vacuum when he was finish with the installation. I was extremely happy with the result."
Response time3 days
97 neighbors recently requested a quote
Recommended by81%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 North Haven, 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."
21 neighbors recently requested a quote
Recommended by90%of homeowners
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Avatar for Viscuso & Son Electric, LLC
Viscuso & Son Electric, LLC
4.8(
130
)
Portable Generator - Install

Serving North Haven, CT and surrounding areas

Approved

In business since 1980

Free estimates

Emergency services offered

"Great service today! ( Smoke alarm install) - Very professional, responded so quickly. Highly recomend Ralph/Viscuso Electric!"
Response time5 hrs
Response rate98%
Recommended by92%of homeowners
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Avatar for Tradesmen Energy Solutions LLC
Tradesmen Energy Solutions LLC
5.0(
9
)
Generator - Install - For Business

Serving North Haven, 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 North Haven, 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

9 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 North Haven, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2022

Free estimates

Emergency services offered

"Very quick to respond, worked efficiently, but was taken back by add costs . $250 for coming to my house. $26 for Angi referral. To replace a circuit it was over $400. Too much"
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 North Haven, 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 North Haven, 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
75 neighbors recently requested a quote
Recommended by20%of homeowners
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Generator Install questions, answered by experts

Sizing a generator is a careful process that requires calculating the electrical load of your entire house. You have to take into account every device you want to use and their wattage requirements, plus the wattage needed to start them, and look for a generator that can safely run all that at around 80% capacity.

In more practical terms, a small home can run on a 10,000-watt generator (and if you only want to power a few key appliances, much less than that). A mid-sized home may need something between 15,000 and 22,000 watts. Larger homes require 25,000 watts or more. 

Whole-house generators can run continuously for extended periods, even for weeks at a time (around 400 to 500 hours), as long as they have a sufficient fuel supply. However, this type of extensive use will increase wear and tear and can shorten the generator's overall lifespan. During long periods of operation, it's important to check and refill the engine oil as needed, potentially as frequently as daily depending on the model. If your generator uses a fuel tank, ensure it is kept full to prevent unexpected shutdowns.

As a safety measure, you should always turn off the main breaker while operating your generator’s backup breaker. In addition, you should also switch off all appliance breakers so you don't have a power surge when the main breaker turns back on. And finally, turning off the main breaker prevents back-feeding, which endangers utility workers with the risk of electrocution. Back-feeding could also destroy the electrical circuits of your neighbors if they use the same power network.

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.

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. 

The North Haven, 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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