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TRUSTED BY CROMWELL, CT HOMEOWNERS

  • Average homeowner rating star icon4.9
    Average homeowner rating
  • Verified reviews icon14
    Verified generator installs reviews

Top-Rated Generator install pros in Cromwell - Updated Nov 2026

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 Cromwell, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2000

Free estimates

Offers commercial services

"Highly recommend contacting them for electrical work! Responded quickly to come and give a quote for a generator hook up. Explained everything thoroughly and gave helpful suggestions as this was my first experience getting a generator to power the house. Very reasonable pricing. From first contact to getting it installed in under 2 weeks. Very happy!!"
Response time5 hrs
Response rate90%
Recommended by91%of homeowners
JMP Electric, LLC
4.9(
91
)
Portable Generator - Install

Serving Cromwell, CT and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"If I could give Jeremy and his team 10 stars I would, they are simply that good! He has installed recess lighting in both of the houses we have owned. Both houses we have owned have a light switch connected to an outlet. He installed new lighting and made sure that the wiring to the outlet works without a switch. He did this for both our living room and upstairs master bedroom. We also asked him if he would install a generator plug outside as well. He installed it and made sure we knew A.) how to run the generator. B.) How to turn the panel off and switch the main breaker on for the generator and C.) Made sure he labeled all breaker switches we were able to use while using the generator to power the house. I will never use anyone but Jeremy and JMP Electric moving forward on any electrical for my house. I would highly recommend him and his company. He is just simply amazing. Look no further when looking to have someone do your electrical. You really won't find anyone better."
Response time5 hrs
Response rate85%
1 neighbors recently requested a quote
Avatar for Tradesmen Energy Solutions LLC
Tradesmen Energy Solutions LLC
5.0(
9
)
Generator - Install - For Business

Serving Cromwell, CT and surrounding areas

Approved

In business since 2022

Free estimates

Credit card accepted

With several years experience, we work hard to bring each customer the best possible service and quality available. We look forward to working with you on your next project. We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer’s needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job. We welcome your questions and thank you for your interest. Call today!

Bedroom Lighting upgrade
Bedroom Lighting upgrade
My jobs
My jobs
My jobs

+10

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

Serving Cromwell, CT and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"I have used Supreme Electric for a variety of electrical services for over 2 years â replacing outlets to support new wall A/C units, replacing a damaged outlet, replacing a light fixture, upgrading my circuit panel and most recently installing a bathroom ventilation fan another electrician said could not be done. I was also provided assistance finding a carpenter to vent the fan out of my attic and I am considering future installation of a generator. Michael is always pleasant, professional and respectful and the quality of work is excellent. He explains exactly what is needed, prices are reasonable, he communicates clearly and promptly as work is being planned and he is always on time for scheduled work. I highly recommend Supreme Electric. It is always a pleasure to work with Michael and I personally will only be using Supreme Electric for any future electrical work I need to have done. Thank you Michael!!"
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%
41 neighbors recently requested a quote
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Generator Install FAQs, answered by experts

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.

You may need a permit for a portable generator if you’ll be installing a transfer switch for your primary residence or similar work. Otherwise, a permit for other uses may not be necessary. Check your local building codes or ask a local generator installer for more information about your local regulations.

A 10,000-watt generator can run a small to mid-sized central AC unit (typically up to 3 tons or 36,000 BTU) along with a few other appliances. However, larger AC units or additional loads will require a bigger generator. Consult a local generator installer to ensure you add the correct size generator to your home.

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 is safe to run a generator continuously, but you must follow safety protocols to ensure personal and home safety. Read the manufacturer’s instructions for specific recommendations, but the general recommendation is to turn generators off overnight or when you’re away from the house. Overworked generators can pose a fire hazard and if your generator is not in a well-ventilated area, running it continuously could lead to carbon monoxide poisoning.

The Cromwell, CT homeowners’ guide to generator installs

From average costs to expert advice, get all the answers you need to get your job done.