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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 Norwich, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2000

Free estimates

Offers commercial services

"We are part way through the process of installation of a Backup home generator. Rob provided excellent information at the first visit. He discussed various options for our home, and the process made me very confident about the decisions we made."
Response time5 hrs
Response rate90%
5 neighbors recently requested a quote
Avatar for Cawiamca, LLC
Cawiamca, LLC
5.0(
43
)
Portable Generator - Install

Serving Norwich, 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
Avatar for Electric Solutions Contracting
Electric Solutions Contracting
4.3(
59
)
Fixed Generator - InstallPortable Generator - Install

Serving Norwich, CT and surrounding areas

Approved

In business since 2014

Free estimates

Offers commercial services

"Kevin has been doing electrical work for us for about a decade, first upgrading the electrical ststem in our 1920s bungalow in Willimantic, and then coming out numerous times to update various elements in our historic home in Chaplin. He's great to work with, no- nonsense, thoughtful about creating safe solutions for our older house, including a generator installation. A nice person and a true professional."
12 neighbors recently requested a quote
Recommended by84%of homeowners
Deary Electric & Renovations
4.7(
33
)
Fixed Generator - InstallFixed Generator - Repair

Serving Norwich, CT and surrounding areas

Approved

In business since 2001

Emergency services offered

Credit card accepted

"I highly recommend Deary Electric. After finding them through Home Advisor, I spoke on the phone with Josh just a few minutes later. They arrived when he said and called ahead 30 minutes before he arrived. Once here, Josh and his partner were able to quickly figure out what the problem was and fixed it shortly thereafter. Cost was more than fair; money well spent. Will definitely call them for future work."
Additional Photos
Response time5 days
Response rate100%
7 neighbors recently requested a quote
Avatar for HARP Home Services, LLC
HARP Home Services, LLC
3.6(
102
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install+1 more

Serving Norwich, 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 Stimson & Abney Electric
Stimson & Abney Electric
5.0(
1
)
Portable Generator - Install

Serving Norwich, 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"
5 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.

Sizing a generator is a careful process that requires calculating the electrical load of your entire house. You have to take into account every device you want to use and their wattage requirements, plus the wattage needed to start them, and look for a generator that can safely run all that at around 80% capacity.

In more practical terms, a small home can run on a 10,000-watt generator (and if you only want to power a few key appliances, much less than that). A mid-sized home may need something between 15,000 and 22,000 watts. Larger homes require 25,000 watts or more. 

To reduce AC startup power for a whole-house generator, install a soft start kit or hard start capacitor, which lowers the initial surge by gradually ramping up the compressor. Using a smart load manager can also help by staggering startup loads, preventing a system overload and future costly repairs.

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.

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.

The Norwich, CT homeowners’ guide to generator installs

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