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Avatar for O'Connell's Electrical Contractors
O'Connell's Electrical Contractors
5.0(
13
)

Serving Putnam, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2018

Free estimates

Emergency services offered

"Mike re-wired my basement outlets at my apartment. He figured out that all of them were wired incorrectly. Not only did he restore power to my basement outlets, he prevented an electrical fire from the previous incorrect wiring. He also installed a new bathroom fan/light combo, with Bluetooth speaker capabilities and multiple led light colors. He was efficient, fairly priced and honest. Highly recommend! Thank you again Mike!"
Response time1 day
4 neighbors recently requested a quote
Avatar for Calkins Electric LLC
Calkins Electric LLC
4.8(
156
)

Serving Putnam, CT and surrounding areas

Approved

In business since 1998

Free estimates

Emergency services offered

"The owner Chris was fantastic and answered my calls and questions in record time, came out quickly for an estimate. Once great price was agreed on, he arrived on time with his staff to get started. This is an old house which I'm sure gave them some challenges, but they efficiently went about their business and answered all my questions, got the job done, left everything clean and made sure I was satisfied. Kudos to Will and Aimee! I would highly recommend and will definitely use Calkins Electric again for my next project."
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4 neighbors recently requested a quote
Recommended by99%of homeowners
Avatar for R A Buckley & Son Electrical Contractors, LLC
R A Buckley & Son Electrical Contractors, LLC
4.8(
48
)

Serving Putnam, 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%
Recommended by93%of homeowners
Avatar for Electric Solutions Contracting
Electric Solutions Contracting
4.3(
59
)

Serving Putnam, 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."
29 neighbors recently requested a quote
Recommended by84%of homeowners
Avatar for West Electric, LLC
West Electric, LLC
4.8(
53
)

Serving Putnam, CT and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"Ed and his team were incredibly professional, transparent, and honest throughout the entire process, from installation to handling the rebate process and permits. Their pricing is reasonable, and the quality of their work exceeded my expectations. I highly recommend West Electric for anyone's EV charger installation needs."
FINAL PROJECT / NICE AND CLEAN
IN WITH THE NEW SMART PANEL
OUT WITH THE OLD
CREW HARD AT WORK
EV Charger Install

+12

Response time2 days
67 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for W B Lightning Rods
W B Lightning Rods
4.6(
367
)

Serving Putnam, CT and surrounding areas

Approved

In business since 2001

Free estimates

Warranties offered

"William Burden is the third generation owner of WBLightningRods and his company has been in business since 1950. He is very courteous, professional, was on time, and has a very good crew. William was present for the entire installation. We chose the copper system. We are glad for the peace of mind a lightning rod system will provide."
lightning protection
 Residential LPS
lightning protection
 Residential LPS
lightning protection

+79

Response time1 day
62 neighbors recently requested a quote
Recommended by98%of homeowners
Deary Electric & Renovations
4.7(
33
)

Serving Putnam, CT and surrounding areas

Approved

In business since 2001

Emergency services offered

Credit card accepted

"Deary Electric have never failed in any task that I have asked them to do. Always professional and they always CLEAN UP when they are done. I love having work done and it looks like it was always there. If you have never used Deary Electric START now. Once you do you will never look for another electrician!!!! By far they exceeded my expectations."
Additional Photos
10 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Extel Communications, Inc.
Extel Communications, Inc.
5.0(
41
)

Serving Putnam, CT and surrounding areas

Approved

In business since 1987

Free estimates

Emergency services offered

We're a local family-owned and operated business started in 1987 with hundreds of satisfied customers throughout Connecticut and New York. We install and maintain hosted-cloud and on-premise telephone systems and provide service for your existing telephone system.\nAdditionally, we offer telco & cable company network services, troubleshoot WiFi issues including installing wireless access points for WiFi connectivity, install data, fiber and voice cabling, security cameras and computer networks. Contact us today for a no charge, no obligation survey for all of your telecom and data needs!

Long Range WiFi Repeater
Hikvision Bullet Camera
Hikvision Dome Camera
Hikvision Bullet Camera
Hikvision Dome Camera

+1

Response time3 hrs
Response rate98%
4 neighbors recently requested a quote
Avatar for JL Electric LLC
JL Electric LLC
5.0(
4
)

Serving Putnam, 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 Phase Out Electric
Phase Out Electric
4.4(
45
)

Serving Putnam, CT and surrounding areas

Approved

In business since 2007

Free estimates

Credit card accepted

"Young professionals. Prompt, courteous, and knowledgeable. Hired to change from a generator transfer panel to a panel interlock system. Very easy to talk to and willing to answer any/all questions pertaining to the job and other electrical concerns."
Response time1 day
Recommended by94%of homeowners
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Showing 1-10 of 91
Generator Install questions, answered by experts

Homeowners can often access federal tax credits, such as the Investment Tax Credit (ITC), which covers a percentage of installation costs. Many states and utilities offer additional rebates, grants, or performance-based incentives. These programs can significantly lower your upfront investment. Check the Database of State Incentives for Renewables and Efficiency (DSIRE) or contact your local energy office for current offers.

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. 

An undersized whole-house generator has the potential to overheat and shut down when you try to run a central AC system. This scenario can not only damage the whole-house generator, but can also trip your home’s breakers or cause electrical damage. To avoid this situation, hire a local generator installer to correctly size your whole-house generator.

To determine the right size generator for your house, you should calculate the total wattage of the appliances and devices you want to power during an outage. List all essential items, note their start-up wattages, and add them together.

Here are some typical wattage requirements for common appliances:

  • Refrigerator: 600 watts

  • Large dehumidifier: 700 watts

  • Large window air conditioner: 1,400 watts

  • Water heater: 3,000 to 4,500 watts

  • Electric furnace: 5,000 to 25,000 watts

A 7,500-watt generator might be sufficient for essentials like a refrigerator, freezer, well pump, and lighting circuits. However, for high-demand items like a water heater or furnace, a whole-home generator is a better choice. A portable generator may be enough if you only need to power a few critical items.

While home square footage can offer a rough estimate, it is not always a reliable indicator. For reference, here are some typical generator sizes based on square footage:

  • 1,000 sq ft: 6–9 kW

  • 1,500 sq ft: 7–10 kW

  • 2,000 sq ft: 10–14 kW

  • 2,500 sq ft: 12–16 kW

  • 3,000 sq ft: 16–20 kW+

For the most accurate sizing, consult a professional who can calculate your home's peak and average power consumption and recommend the optimal generator.

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.

The Putnam, CT homeowners’ guide to generator installs

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