Licensed Electricians in Thornhill You Can Rely On
Licensed, insured, and local. ON Energy delivers ESA‑compliant electrical work in Thornhill with transparent pricing and tidy finishes.
"Fantastic and fast service changing my old fuse box over to a breaker panel and even took the time to go through the house and map the breakers. 5/5 service!"
Get a Free Quote From a Licensed Electrical Contractor in Thornhill
Trusted, Local Electricians in Thornhill and Surrounding Areas
At ON Energy, we take pride in being Thornhill’s go-to licensed electricians for both homes and businesses. Since 2016, we’ve delivered safe, efficient, and code-compliant electrical work backed by transparent pricing and exceptional service. Our team handles everything from EV charger installations and electrical panel upgrades to lighting, wiring, and troubleshooting. Fully licensed by the ESA (Licence #7011912) and fully insured, we bring professionalism, reliability, and lasting results to every project we complete in Thornhill.
Our Electrical Services in Thornhill, ON
Fast diagnostics. Clean installs. Proper permits and ESA documentation on completion.
Licensed Electricians Serving Both Residential and Commercial Clients
Some Words From
Our Happy Customers
Hiring an Electrician in Thornhill, The Right Way
We believe hiring an electrician in Thornhill should be straightforward, honest, and stress-free. That’s why we follow a clear process to ensure you understand every step—from your first call to the final inspection.
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Contact Us to Book a Time
Call or message with a few photos and your goal. We confirm safety, scope, and timing, then schedule a visit. If it’s urgent, we triage immediately and prioritize hazard removal or power restoration.
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In-House Consultation
We verify existing wiring, service size, and access. We check load calculations, equipment locations, ventilation, and clearances. If an ESA notification or utility request is required, we outline steps and timelines so nothing is missed.
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Honest, Upfront Quote
No mystery line items. Materials, labour, ESA fees, and any utility charges are separated so you understand each cost. We also price optional upgrades clearly, so you can say yes or no with confidence.
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Certified Work With ESA Documentation
A Licensed Electrical Contractor in Thornhill performs the work to the Ontario Electrical Safety Code, files the notification, and provides a Certificate of Acceptance when approved. Keep it for insurance and resale.
Why Choose Us?
Licensed & Insured
We’re ESA‑licensed (ECRA/ESA #7011912) with limited liability insurance. You get compliant installations and the right documentation for insurers and solicitors. Safety and paper trail first-every time.
Experienced & Friendly
Since 2016, we’ve helped Thornhill homeowners and businesses upgrade safely. We explain options in plain language, protect floors and finishes, and leave work areas clean. You’ll always know what we’re doing, why, and what it costs.
Competitive Rates
We price by scope, not guesswork. You’ll see materials, labour, and any third‑party fees separated. If conditions change, we pause, discuss options, and update the quote before proceeding.
Proudly Serving the Thornhill Community
From Thornhill Village and Bayview Glen to Royal Orchard and Uplands Golf & Ski Club, we’re in the neighbourhood weekly. Because Thornhill spans Vaughan and Markham, we coordinate with the right municipality and Alectra when service upgrades require it.
- Aurora
- Bradford
- Brampton
- Concord/Vaughan
- Markham
- Mississauga
- Newmarket
- Richmond Hill
- Stouffville
- Thornhill
- Toronto
