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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(
49
)

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 time5 hrs
Response rate90%
4 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
3 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
Response time5 days
Response rate100%
8 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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Showing 1-10 of 43
Generator Install questions, answered by experts

Generators run on a variety of fuel types, ranging from natural gas to solar power. Keep in mind that fuel costs varying by type:

  • Natural gas: $2,000–$21,000 per year 

  • Liquid propane: $2,000–$21,000 per year

  • Diesel: $3,000–$20,000 per year

  • Gasoline: $500–$3,000 per year

  • Solar generator: $2,000–$25,000 per unit

  • Battery backup: $10,000–$25,000 per unit

It’s usually better to repair your generator if it isn’t working properly, as it will typically be much more affordable and should yield similar results. Generator repairs cost around $300 on average, while installing a new whole-house generator costs around $5,000 on average. The only exception is if you know your generator is reaching the end of its useful life, usually between 30 and 40 years. If you have an older generator, you could face multiple repairs in the coming years, which might mean that a full replacement will be more cost-effective over time.

Natural gas generators are designed to run for extended periods of time, such as power outages during a natural disaster. Since there’s no limit to the supply of natural gas, they don’t need to stop for refills. However, generators do need maintenance, including pauses to check and add oil. Constantly running them will also cause a lot more wear and tear, leading to a shorter lifespan.

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.

If you’re wondering if you can use your electric vehicle as a backup battery, it depends on whether your EV is compatible with bidirectional charging. This technology allows energy to flow both ways, enabling vehicle-to-home (V2H) backup power, vehicle-to-load (V2L) for appliances and camping, and vehicle-to-grid (V2G) to support the power grid. Compatible EVs convert stored DC energy into usable AC power, helping reduce energy costs and enhance grid stability while providing emergency backup power.

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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