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Top-Rated Generator install pros in Old Lyme - 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 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%
Recommended by91%of homeowners
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
Avatar for ESD Electric LLC
ESD Electric LLC
5.0(
11
)
Generator - Install - For BusinessPortable Generator - InstallPortable Generator - Repair

Serving Old Lyme, CT and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"I have been using Evan as my recommendelectrician for many years now. Being a Real Estate Agent I have been able to ask Evan for his assistance in all my electrical needs. Personally Evan has replaced my old wiring in my home. Always efficient and nice to be able to count on his professionalism to get the job done correctly! Thank you Evan for all your hard work!"
12 neighbors recently requested a quote
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
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
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

30 neighbors recently requested a quote
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Generator Install FAQs, answered by experts

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.

Yes, natural gas generators can work without electricity. Natural gas generators are a common type of backup or whole-house generator that operates when the electrical grid isn’t working. The trick is using a transfer switch (which usually needs to be installed with the generator) that safely switches the home electrical system from the power grid to generator power when needed.

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.

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.

The cost to install a whole-house generator averages $5,200, with a typical price range of $1,500 to $8,900. However, total costs can vary from $400 for a small portable unit to over $18,000 for a large-capacity system. The most significant cost factor is the generator's size and capacity, but other variables include the brand, fuel type, and labor for assembly and installation.

Generator costs can be broken down by type:

  • Portable or Emergency Backup Generators (1kW–7.5kW): $500 to $2,000

  • Partial-Home Generators (9kW–20kW): $2,000 to $6,500

  • Whole-House Generators (22kW–48kW): $5,000 to $18,000

To avoid paying for more power than you need, consider hiring an electrician to calculate the electrical load for your essential appliances. It is also recommended to get at least three quotes to find the best deal for your specific needs and budget.

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.