★★★★★
"Green Source did a full panel upgrade and rewired our 1960s bungalow. Professional, clean, on time. Highly recommend."
SMSarah M.· Mississauga
ESA Licence #7010748 · Since 2012
Safer wiring,
Safer wiring,
smarter homes —
across Southern Ontario.
Licensed, insured, ESA-authorized residential electricians. Free written estimates, ESA-permitted, workmanship guaranteed.
Licensed & InsuredESA #7010748
24/7 EmergencyGTA + Southern Ontario
14+Years in Southern Ontario
2,400+Homes wired safely
4.9★Google rating
$2MLiability coverage
100%ESA inspected
01 — What we do
Electrical work, done to code.
Every job inspected, ESA-compliant, and backed by our workmanship guarantee.
Panel Upgrades
60A or 100A → modern 200A. Ready for EVs, additions & heat pumps.
Learn more →EV Charger Install
Level 2 home chargers. Tesla, ChargePoint, Wallbox — all brands.
Learn more →Custom Homes & Renos
Full electrical for new builds, renovations & additions. Plans → ESA.
Learn more →Commercial Service
Tenant fit-outs, retail, offices, service upgrades. After-hours available.
Learn more →Pools, Cabanas & Hot Tubs
Bonded, GFCI-protected wiring. Pool control & equipment programming.
Learn more →Lighting & Pot Lights
Recessed, LED, outdoor, dimmer-tuned designs.
Learn more → 24/724/7 Emergency Repairs
Sparking outlets, burning smell, no power — call any time.
Learn more →02 — Why us
The reasons Southern Ontario homeowners keep our number saved.
Licensed expertise, honest work, and the kind of follow-through that gets you on the referral text thread.
01
ESA Licensed & Insured
Licence #7010748. Every job inspected. $2M liability coverage on every visit.
02
Free written estimates
Quote in writing before any work begins. The number on the quote is the number on the invoice.
03
Workmanship guarantee
2-year guarantee on all installations. We come back if something is off.
04
Clean & respectful
Drop sheets, boot covers, full cleanup. Your home stays a home.
03 — Where we work
Serving the Greater Toronto Area.
Same-day visits across the 416 and 905. Don't see your neighborhood? Call — we likely cover it.
Toronto0 km
North York14 km
Scarborough20 km
Etobicoke12 km
Mississauga24 km
Brampton40 km
Oakville38 km
Burlington55 km
Hamilton68 km
Milton52 km
See full service map
Coverage across the GTA & Southern Ontario
04 — Recent work
From the truck this month.
A small slice of what we've finished lately across the GTA.
05 — Customer reviews
Real homeowners. Real wiring jobs.
G
Google Reviews
187 reviews
★★★★★ 4.9
★★★★★
"Called for an emergency at 11pm — burning smell from an outlet. Green Source was here within 45 minutes and made sure everything was safe."
DKDavid K.· Etobicoke
★★★★★
"24 pot lights and a new sub-panel in our finished basement. Clean work, on schedule, cleaned up everything. Will use again for our kitchen reno."
PRPriya R.· Brampton
06 — Get started
Free quote. Usually back within 2 hours.
Tell us a bit about the job. We'll text or email you a written estimate — no obligation, no spam.
Got it, thanks.
We'll reach out at within 2 hours.
For emergencies, call (416) 899-5136.
REF · GS-0000