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4.6

(357 reviews)

Top-rated electricians.

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Avatar for Connoles Electric, LLC
Connoles Electric, LLC
4.8(
82
)

Serving Harwinton, CT and surrounding areas

Approved

In business since 1984

Free estimates

Credit card accepted

"Ted and Robert arrived, got right t to it and within a few hours we had 2 ceiling fans installed, one which had no existing light so it was a more involved project. They were professional and stuck to their original quote! To say we are impressed is an understatement. We strongly recommend using Connole Electric."
1 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Supreme Electric, LLC
Supreme Electric, LLC
4.1(
122
)

Serving Harwinton, CT and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"I have used Supreme Electric for a variety of electrical services for over 2 years â replacing outlets to support new wall A/C units, replacing a damaged outlet, replacing a light fixture, upgrading my circuit panel and most recently installing a bathroom ventilation fan another electrician said could not be done. I was also provided assistance finding a carpenter to vent the fan out of my attic and I am considering future installation of a generator. Michael is always pleasant, professional and respectful and the quality of work is excellent. He explains exactly what is needed, prices are reasonable, he communicates clearly and promptly as work is being planned and he is always on time for scheduled work. I highly recommend Supreme Electric. It is always a pleasure to work with Michael and I personally will only be using Supreme Electric for any future electrical work I need to have done. Thank you Michael!!"
BETTER BUSINESS BUREAU RATING
Recessed and pendant lighting
Home theatre wiring and lighting
Whole house generator wiring
Generator install

+49

Response time3 hrs
Response rate94%
64 neighbors recently requested a quote
Avatar for OnTheGrid Electric , LLC
OnTheGrid Electric , LLC
5.0(
12
)

Serving Harwinton, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2009

Free estimates

Credit card accepted

"Great job by On The Grid. Help me out with installing electrical on my new patio. Very knowledgeable, neat, and easy to work with. Would definitely hire them again for any electrical needs."
Standby generator automatic transfer switch with main panel
Landscape lighting
Fuse panels to be removed in multifamily house with external circuit switches (via insurance requirement)
Portable generator panel interlock
Lighting for a parking lot

+16

Response time1 day
3 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Power Switch Electric
Power Switch Electric
5.0(
17
)

Serving Harwinton, CT and surrounding areas

Approved

In business since 2010

Emergency services offered

Small jobs welcome

"Mike was awesome! He was punctual, professional and very thorough. He completed all the items for my project and even fixed an additional issue we had. Will use him again in a few weeks for another project. I highly recommend him for your electrical projects."
Electrical work
Response time9 hrs
Response rate98%
Avatar for Swanson Electric, LLC
Swanson Electric, LLC
5.0(
31
)

Serving Harwinton, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Emergency services offered

"Troy Swanson is always my 1st call for anything electrical. His work ethic, neatness, promptness, dependable and stands behind whatever work he does. I always recommend him if someone needs anything electrical."
Panel
Response time5 hrs
Response rate99%
22 neighbors recently requested a quote
Avatar for Rivera Electrical Contractors LLC
Rivera Electrical Contractors LLC
5.0(
9
)

Serving Harwinton, CT and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

"I hired Jonathan of Rivera Electrical Contractors to install the electrical wiring for my hot tub. He gave me reasonable/competitive quote compared to other contractors, he explained and educated me about what he’s doing, he’s very easy and approachable to talk with, he’s work is very neat and doesn’t leave any mess and he doesn’t cut corners. Overall i am very satisfied w/ his work."
400 amp service upgrade
400 amp service upgrade
400 amp service upgrade
400 amp service upgrade
13 neighbors recently requested a quote
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Electrical questions, answered by experts

A ground wire is not required for GFCI to work. A ground is a third wire in an outlet in addition to the live and neutral wires. It serves as an escape conduit for electricity in case of a short circuit. If a ground wire is present, installers should connect it to the appropriate terminal. Otherwise, a GFCI will work fine without it.

It's recommended that you only use your circuit breaker for your water heater. Tacking on additional appliances, especially large ones like refrigerators, can overload the circuit and lead to electrical fires. Therefore, it's best to have separate circuits for each major appliance, particularly continuous load appliances, which use a lot of energy over prolonged periods of time.

No. Do not use a 14-gauge wire on a 20-amp outlet. A certified licensed electrician would know that the National Electrical Code (as per Section 240.4(D) subsection 3) requires 14-gauge wires to be used with a maximum amplitude of 15. Therefore, you should only use 12-gauge wires on 20-amp outlets.

While you might not need to put lights and outlets on separate circuits, some local codes may require that you use separate circuits. Installing a separate circuit helps prevent total darkness in your home when your receptacle outlets take on too much power and blow a fuse or trip the breaker. It also costs less and is easier to simply install a new circuit.

A larger heater requires a larger breaker—unless there’s one already installed. The longer answer to this question is more nuanced. Do you place demands on the heater at the same time as running other heavy-duty appliances like ovens and washing machines? Do you live in an older home that may not have considered the higher electrical demands we have now? Breakers need to be sized at 125% of the load. To find that load, you should call a local electrical pro.

The Harwinton, CT homeowners’ guide to electrical services

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