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  • Average homeowner rating star icon5
    Average homeowner rating
  • Verified reviews icon13
    Verified generator installs reviews

Verified Reviews for Generator Install pros in Old Lyme, CT

*The Angi rating for Generator Install companies in Old Lyme, 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 Old Lyme, 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 Old Lyme

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 Old Lyme, 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 Cawiamca, LLC
Cawiamca, LLC
5.0(
43
)
Portable Generator - Install

Serving Old Lyme, CT and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"We first called Cawiamca to see if they could repair our old split system. The guys cane out the same day. Unfortunately, the old system is was quite obsolete and it just wasn't worth repairing. Ron got us a quote on a new system immediately. Within a few days we had a whole new system installed! Price was reasonable, the guys all were pleasant and professional. We are way more than pleased with the outcome! And we wouldn't hesitate to recommend Cawiamca to anyone!"
Steam Boiler
New Boiler Install
New Home Saybrook
Custom built in in progress
Addition in progress

+2

Response time4 hrs
Recommended by100%of homeowners
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Avatar for Tradesmen Energy Solutions LLC
Tradesmen Energy Solutions LLC
5.0(
6
)
Generator - Install - For Business

Serving Old Lyme, 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 MB Electric
MB Electric
4.9(
8
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Old Lyme, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2022

Free estimates

Emergency services offered

"Matt was professional, efficient, knowledgeable, and reasonably priced! I needed an outlet installed for my washer dryer. He was able to come in and get it done quickly! I will definitely reach out for future services."
MB Industries
MB Industries
MB Industries
MB Industries
MB Industries

+46

Response time8 hrs
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Jennings Electric
5.0(
2
)
Generator - Install - For BusinessPortable Generator - Install

Serving Old Lyme, CT and surrounding areas

Approved

In business since 2006

Free estimates

Offers commercial services

"Highly recommend!! Peter was very professional and easy to work with. Came when he said he would and finished the job on time. He also returned after the installation was complete to make certain furnace was running well and to install a new CO2 monitor when he noticed mine was outdated."
Response time3 days
Recommended by100%of homeowners
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Avatar for HARP Home Services, LLC
HARP Home Services, LLC
3.6(
102
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install+1 more

Serving Old Lyme, CT and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Feel free to book online with us today!

Recommended by74%of homeowners
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Avatar for EnLight.Energy
EnLight.Energy
3.5(
4
)
Fixed Generator - InstallFixed Generator - Repair

Serving Old Lyme, CT and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

"They were very thorough and professional. Very personable."
Multi-Layer Insulation
Cellulose Insulation Job
Solar Install
Solar Installation
Solar Fan

+4

Response time2 days
26 neighbors recently requested a quote
Recommended by66%of homeowners
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Avatar for Shoreline Electric Services, LLC
Shoreline Electric Services, LLC
3.9(
9
)
Portable Generator - Install

Serving Old Lyme, CT and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"Great service. Came ready to work. Very pleased."
Electrical Panel
Electrical Wiring
Foyer
Response time1 day
9 neighbors recently requested a quote
Recommended by75%of homeowners
Request Quote
Showing 1-10 of 43
Generator Install questions, answered by experts

The amount of time a standby generator can run continuously is around 3,000 hours on average. However, standby generators can generally run indefinitely as long as they have a continuous fuel supply. Generators hooked up to a home’s natural gas supply are the best option for extended usage, as these won’t rely on a finite fuel supply based on how much you have in storage. Generators running on liquid propane or diesel won’t last as long, as these require fuel storage and regular refueling to stay running.

While standby generators provide essential backup power, they can fail when you need them most due to lack of maintenance, fuel supply issues, dead batteries, electrical problems, or improper installation. To avoid costly failures, professional installation and regular maintenance are crucial. Licensed technicians ensure safety, uphold warranty requirements, comply with regulations, and provide expert servicing.

In some situations, yes. Never try to put biofuel into any home generator without checking the specifics first. If a generator has the ability to run on diesel, it can also run pure biofuel (the clear kind made from seed oils, for example). But if you are using biofuel made from animal fats or vegetable oils, the generator will need significant modifications before it can handle a sludgier type of biofuel.

Most homeowners won't be able to claim a home generator as a tax write-off. However, a whole-house generator may be tax-deductible in certain situations depending on its purpose. For instance, if it's needed to power essential medical equipment, it may qualify as a medical expense deduction. Also, in some cases, businesses can deduct a generator as a business expense if it supports operations. Always consult a tax professional to determine eligibility based on your specific circumstances and the applicable IRS regulations.

A 1,500 square foot home will likely need a 15kW to 20kW generator. When deciding on whole-house generator size, add up the total wattage of the devices that you’d like to continue running during a power outage. That way, you can ensure you purchase a generator that can power your necessary appliances or medical equipment during an electrical emergency.

The Old Lyme, 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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