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TRUSTED BY OLD LYME, CT HOMEOWNERS

  • 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

"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%
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

"E-mailed for a quote inquiry for boiler install. Received a call and a visit same day. Ron fit us in for a combi boiler install within a week as we lost hot water. Roy and Austin were true professionals. Very knowledgeable, thorough and neat. A solid company that genuinely cares for its customers. Ron and crew... thank you for everything. You're all top notch guys. We're looking forward to our new mini split ."
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(
9
)
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
24 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
10 neighbors recently requested a quote
Recommended by75%of homeowners
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Avatar for Blue Volt Electrical Contractors LLC
Blue Volt Electrical Contractors LLC
5.0(
1
)
Portable Generator - Install

Serving Old Lyme, CT and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

I promise a commitment to quality workmanship, attention to detail, and customer satisfaction. Prioritizing safety and efficiency, ensuring that every project meets the highest industry standards. My team is highly trained, experienced, and dedicated to staying updated with the latest technologies and best practices.\n\nWe’ll do a great job because we genuinely care about our clients' needs, offering personalized solutions and transparent communication throughout each project. Our reliability, prompt service, and strong work ethic build trust and long-term relationships, setting us apart from the competition.

Panel Upgrade
Panel Upgrade
Panel Upgrade
Panel Upgrade
Generator Interlock

+15

29 neighbors recently requested a quote
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Generator Install questions, answered by experts

With proper maintenance, a whole-house generator can last between 20 and 40 years. The specific lifespan depends on how often and for how long the generator is used, and some models may have their life expectancy rated in hours of operation. To maximize its lifespan, expect to spend around $150 to $300 per year for annual maintenance checks from a qualified technician. During these checks, a technician will inspect the engine filter, starting mechanism, fuel, lubrication, and coolant levels. Consulting your installer and choosing a low-impact fuel like natural gas or diesel can also help ensure your generator lasts as long as possible.

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. 

Generators are safe to use as long as they are installed and operated correctly according to the manufacturer's recommendations. The most critical safety tips are to never use a portable or fuel-powered generator inside an enclosed space due to the risk of lethal carbon monoxide poisoning; always operate it outdoors where fumes can dissipate away from your home. Additionally, never attempt to connect a generator to your home’s electrical panel yourself—hire a professional to ensure the setup meets safety standards. Finally, avoid overloading the generator by not connecting more appliances than it is rated for, as this can damage your equipment or cause a fire.

Yes, in most municipalities, you will need a permit to install a permanent home generator, including emergency backup, partial-home, and whole-home models. Because these installations involve significant alterations to your home's electrical system and produce exhaust fumes, local governments often require a permit or inspection for safety purposes. A generator permit typically costs between $50 and $250, depending on your location. Your electrician or certified installer can usually handle the permitting process for you, but you will be responsible for the cost. It's a good practice to confirm with your installer that they will pull all necessary permits before work begins.

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.