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Avatar for R A Buckley & Son Electrical Contractors, LLC
R A Buckley & Son Electrical Contractors, LLC
4.8(
48
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Preston, 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 time7 hrs
Response rate89%
1 neighbors recently requested a quote
Avatar for Electric Solutions Contracting
Electric Solutions Contracting
4.3(
59
)
Fixed Generator - InstallPortable Generator - Install

Serving Preston, CT and surrounding areas

Approved

In business since 2014

Free estimates

Offers commercial services

"Kevin did a great job installing our generator interlock kit. He responded quickly to my request for an estimate, he was on time for his appointment and he got back to us with an estimate ASAP. The work in our home was done efficiently and Kevin left the work area neat. The job cost was the exact figure quoted on the estimate. I highly recommend Electric Solutions and would hire Kevin again for any electrical work we need done."
20 neighbors recently requested a quote
Recommended by84%of homeowners
Avatar for Klein Electric LLC
Klein Electric LLC
4.9(
22
)
Portable Generator - Install

Serving Preston, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"We picked Klein because they were great communicators, send us a quote right away and worked with our timeline. We were very impressed with the work, the way they cleaned everything up and showed us how it worked. We will definitely be using them again!! You will be impressed with Jeramey!!!"
Before
After
Response time3 days
2 neighbors recently requested a quote
Recommended by31%of homeowners
Avatar for JL Electric LLC
JL Electric LLC
5.0(
4
)
Fixed Generator - InstallFixed Generator - Repair

Serving Preston, CT and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

Are you looking for high quality, professional electrical work done at competitive prices?\n\nWith 18 years of experience, JL Electric provides residential, commericial, industrial and solar services including: removal and reinstallation of solar systems, service upgrades, generator hook up installation, general residential wiring and all other electrical needs!\n\nNow servicing all of CT, but local to Windham County! Let us provide high quality and reliable workmanship to your home or workplace!

Tesla Charger Install
Tesla Charger Install
Generator Transfer
Generator Transfer
Outside lights

+2

Avatar for Stimson & Abney Electric
Stimson & Abney Electric
5.0(
1
)
Portable Generator - Install

Serving Preston, CT and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

"I had a small electrical fire on a Saturday from out dated cloth wire. These guys showed up got it fixed to where my house was safe and came back on a Sunday to get it 100 percent done rewiring my out door lights for my front door. Amazing professional work. They came back a little later and re wiring my entire house for me new panel new wires handled the permit. I can’t say enough about their work and professionalism I have no issue leaving them a key to work while I’m not home. Again amazing quality work"
2 neighbors recently requested a quote
Showing 1-10 of 49
Generator Install questions, answered by experts

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.

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. 

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.

Whole-house generators need to be installed on level ground several feet away from walls and other objects. Because they tap into the electrical system directly, they usually need to be close to your home electrical panel for a transfer switch installation. It also helps with installation if they are near to a gas line or propane tank installation.

Yes, installing a generator usually increases your property value because buyers are getting the added peace of mind knowing they’ll be able to maintain power through blackouts. In most cases, you should see close to a 100% return on investment (ROI). Keep in mind that home generators usually need a permanent foundation, and installing a concrete slab will likely raise your property taxes slightly.

The Preston, CT homeowners’ guide to generator installs

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