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TRUSTED BY GROTON, CT HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon14
    Verified generator installs reviews

Verified Reviews for Generator Install pros in Groton, CT

*The Angi rating for Generator Install companies in Groton, CT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

*The HomeAdvisor rating for Generator Install companies in Groton, CT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

Last update on January 06, 2025

Find Generator install pros in Groton

Avatar for R A Buckley & Son Electrical Contractors, LLC
R A Buckley & Son Electrical Contractors, LLC
4.8(
48
)

Serving Groton, 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%
3 neighbors recently requested a quote
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Avatar for Klein Electric LLC
Klein Electric LLC
4.9(
22
)

Serving Groton, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"I had a ceiling fan installed. He showed up when promised and cleaned up when he was done."
Before
After
Response time3 days
2 neighbors recently requested a quote
Recommended by31%of homeowners
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Avatar for Beltran Electric
Beltran Electric
5.0(
20
)

Serving Groton, CT and surrounding areas

Approved

In business since 2025

Free estimates

Small jobs welcome

"He was excellent. He showed up on time, was very efficient, knew what he was doing. I feel like he will be a great resources for future electrical needs. I will definitley call again!"
Service change
Panel Change
Panel Change
Response time9 hrs
Response rate100%
1 neighbors recently requested a quote
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Deary Electric & Renovations
4.7(
33
)

Serving Groton, 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
8 neighbors recently requested a quote
Recommended by96%of homeowners
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Avatar for MB Electric
MB Electric
4.9(
8
)

Serving Groton, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2022

Free estimates

Emergency services offered

"Matt was professional, efficient, knowledgeable, and reasonably priced! I needed an outlet installed for my washer dryer. He was able to come in and get it done quickly! I will definitely reach out for future services."
MB Industries
MB Industries
MB Industries
MB Industries
MB Industries

+46

Response time8 hrs
1 neighbors recently requested a quote
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Avatar for JL Electric LLC
JL Electric LLC
5.0(
4
)

Serving Groton, 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

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Generator Install questions, answered by experts

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. 

Setting up utilities on a vacant property usually takes at least a few months, or between 6 weeks to 16 weeks. This process requires working with the local planning and zoning department, hiring a building contractor or engineer to design the utility layout, securing permits, laying the lines, and connecting the utilities.

While diesel is relatively stable, it won’t last nearly as long as propane and you may have to replace it if it sits unused for too long. Diesel can sometimes struggle to work efficiently or start engines during especially cold weather, so it’s not the best choice for every climate. Compared to fuels like propane and natural gas, diesel generators tend to be noisier and create more exhaust, which isn’t always ideal for home use.

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. 

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 Groton, CT homeowners’ guide to generator installs

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

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