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TRUSTED BY KILLINGWORTH, CT HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon18
    Verified generator installs reviews

Find Generator install pros in Killingworth

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 Killingworth, 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%
4 neighbors recently requested a quote
JMP Electric, LLC
4.9(
91
)
Portable Generator - Install

Serving Killingworth, CT and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"It was a pleasure to deal with this company. They are extremely knowledgeable in designing an electrical charging station in what was a difficult i situation. My breaker panel and garage were on opposite sides of my home. A solution was given at a reasonable price. I could not be happier. All work was done professionally with great attention to detail. If you are in need of electrical services, donâ t look any further. They are without a doubt, the best."
Response time5 hrs
Response rate85%
1 neighbors recently requested a quote
Avatar for Cawiamca, LLC
Cawiamca, LLC
5.0(
43
)
Portable Generator - Install

Serving Killingworth, CT and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"Posted a job for a boiler replacement on homeadvisor on thursday and got a call in less than half an hour. Ron, one of the owners, said he could come take a look on saturday morning. I got a quote on monday. I decided to hire them on friday. Jeremy the boiler specialist and other co owner came by the the next day to take a few more pictures and check on a few other things. The boiler we decided on was a special order and took a few weeks to arrive. It came in on a monday and was installed by thursday. They started on thursday morning with a two man crew. Around lunch the Jeremy came by to see how things were going. Around 2pm an other two guys showed up to help. At about 3:30 the co owner and boiler specialist came by to oversee the final part of the install and operational testing. I was originally told it would be a two day install. They didn't just replace the boiler, they replaced the expansion tank, dual zone control box, etc. They worked until around 7pm to get it all done in one day. They bled all the radiators in the house and made sure they were heating properly. They took all the old parts with them and left no trash behind. Everybody from this company was extremely professional. They arrived within five minutes of the time they said they would be at my house. Nobody could beat the quote they gave me for the install. Any questions I had were responded to in 30 minutes or less. The install looks amazing so much shiny copper pipe. Cawiamca gave me a 3 year warranty where they will take care of all the labor and parts if anything goes wrong. This was by far the best experience I have ever had with a company coming to my house to do something.They performed consistently above my expectations. They will be the first people I call if I need any more work done on my heating system. I highly recommend Cawiamca."
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 Elevate Electric LLC
Elevate Electric LLC
5.0(
4
)
Portable Generator - Install

Serving Killingworth, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Credit card accepted

"I hired Elevate Electric to install multiple electrical outlets in my basement after a waterproofing project. Kyle installed electrical outlets, ran a new circuit, and upgraded a breaker. The result looks outstanding! The new circuit wire is routed cleanly and he even dressed up some previous wiring too. Kyle shaped conduit around existing items along the basement wall making the whole utility room look good. This is probably the 4th time I have hired Kyle for electrical work. He consistently does great work. The quality is top notch and his pricing is extremely fair. You cannot go wrong with Elevate."
Response time9 hrs
3 neighbors recently requested a quote
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Generator Install questions, answered by experts

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.

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.

Generally, you’ll want to keep between 60 and 70 feet between the generator and the transfer switch. There are a few reasons for this, including:

  • The distance reduces the noise coming from the generator into your home.

  • It increases efficiency because you won’t have a voltage drop from this short of a distance.

  • Prevents carbon monoxide poisoning: keep at least 15 feet between your generator and an open window. 

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.

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 Killingworth, CT homeowners’ guide to generator installs

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