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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

GFCI stands for Ground Fault Circuit Interrupter, a standard safety addition to home power outlets. In rooms where moisture is more likely, like the bathroom and kitchen, GFCI outlets stop the current when certain kinds of shorts are detected, preventing shocks. Both GFCI and the similar AFCI (Arc Fault Circuit Interrupter) outlets are polarized and have clear indicators on the receptacle where hot wiring should go.

Rewiring projects cost anywhere between $1,500 and $10,000 on average, depending on the complexity and the size of the rewiring. You can anticipate spending between $2 and $4 per square foot of wire, including labor and materials. Wire material ranges from $0.25 to $1.60 per linear foot.

No, you should never plug a generator directly into a wall outlet in your house. This practice is extremely dangerous, often illegal, and can cause "back-feeding," where power from the generator flows back into utility lines, creating a life-threatening hazard for utility workers. It can also damage your home's electrical system, including appliances like pumps and HVAC fans. If the main power is restored while the generator is connected, it can destroy the generator and cause an electrical fire. To safely connect a generator, you must use a professionally installed transfer switch or an interlocking kit, which prevents back-feeding by disconnecting your home from the utility grid before the generator provides power.

No, you should always use proper electrical wire caps to safely cap off electrical wires. Electrical tape isn’t as durable as electrical caps and can deteriorate and separate over time, exposing the live wires. The only way to use electrical tape for this project is to wrap it around the caps themselves to reinforce them and create an even stronger connection, preventing an electrical emergency.

Window ACs use 500 to 1,400 watts per hour of electricity, while mini-splits use 500 to 700 watts per hour. However, if you need to cool multiple zones in your house, your mini-split can use as much as 2,000 watts per hour. How often you run your system will impact how much electricity you use (and how much you pay per month).

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.