4.6 
357 *The Angi rating for Electrical Service companies in Harwinton, CT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Electrical Service needs.
*The HomeAdvisor rating for Electrical Service companies in Harwinton, CT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Electrical Service needs.
Last update on March 16, 2026
Serving Harwinton, CT and surrounding areas
Approved
Super Service Award Winner
In business since 2022
Free estimates
Emergency services offered
"Great job. Fixed my electrical issues very quickly."
+12
Serving Harwinton, CT and surrounding areas
Approved
In business since 2011
Free estimates
Emergency services offered
"Phil was very personable, thorough and provided valuable feedback and advice on the projects he helped me with. They did an outstanding job. I will be hiring Williams Electric Service for all future electrical projects in my home."
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."
Serving Harwinton, CT and surrounding areas
Approved
Super Service Award Winner
In business since 2017
Free estimates
Emergency services offered
"Greg was amazing, Iâ d recommend him 100%, Iâ ll be using him again when I need electrical work done!"
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!!"
+49
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."
+16
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."
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."
Serving Harwinton, CT and surrounding areas
Approved
In business since 2022
Free estimates
Emergency services offered
"Quick response. Fair price. Quality work Very pleased"
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."
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