Penfold Electric LTD
“This company is reliable on time and knowledgeable would highly recommend them”
Best Electricians in Ajax, ON
15 contractors listed · 8 in Ajax · 4 open 24/7 · 8 open weekends · 14 rated 4.5+
Data verified October 18, 2026
Arjo Electric Inc.
“Arjo electric was able to provide me a quote over the phone and when Aris and his team came did not change any cost.”
Raem Electric INC
“He did an amazing job with the work and was able to also solve an issue and my break panel”
NSW Electric
“Neil resolved a long standing problem I have been experiencing for years.”
Eco Electrical Contractors
“Electrical work should be done by a well experienced electrician and I believe this person is the one you can trust fully for any electrical work.”
Riley Group Electrical Limited
“I shall strongly recommend their service to anyone who wants hassle free electrical work with coverage and warranty.”
The 15 contractors listed for Ajax, ON handle panels, circuits, garage feeds and charger installs. What appears under each one about licensing, hours and advertised work is taken from that business's own site, with ratings and comments from public reviews.
Area overview: Ajax, ON
8 of the 15 contractors we list are based in Ajax; the other 7 serve Ajax from towns including Whitby (8 km), Oshawa (16 km) and Pickering (5 km). The contractors on this page are rated from 4.4 to 5.0 across 3,276 reviews; 9 have 50 or more reviews and 14 are rated 4.5 or higher. When customers rate these contractors on specific qualities, they most often praise professionalism (94%), quality (85%) and responsiveness (78%). 4 are open around the clock; 8 are open on Saturdays and 5 on Sundays. 6 show a licence on their websites. 6 have ten or more years of experience, the longest 17 years. 4 offer emergency call-outs; 1 offers financing or payment plans; 7 give free estimates and 3 are family- or locally-owned. We have a website on file for 14 of the contractors on this page; 10 publish a contact page; 9 list a public email and 2 take bookings online. We count these figures across the contractors on this page; distances are straight-line, and hours and prices change, so confirm the details with the contractor before you book.
Which listed electricians take emergency callouts?
Overnight calls are taken by 4 of the 15 contractors listed here. A dead furnace circuit in January is worth the callout rate. Expect the faulty circuit to be isolated and the rest of the house restored, with the proper repair booked for the next working day.
Makenady Construction Services Inc. General Contractor Ajax
“The result was a beautifully finished main floor, a basement that was left looking as good or better than before they arrived and a surprisingly stress free and smooth process from beginning to end which took less than 3 months.”
Hayatt Electric Contracting Corporation
A.G. James Electrical Ltd.
“The original panels were a terrible mess and he cleaned up all of the wiring and put in all into one neat panel.”
Powersource Electric Inc.
“Powersource Electric did a great job making two bedrooms outlets always live, correcting previous electric work.”
Canon Electric
“Derek solved our electrical outlet issues in record time and was a pleasure to deal with.”
Limcan Certified Heating and Air Conditioning
“Shalton came out and did a wonderful job, he was professional and explained everything very well.”
Wilson Electric Installations Inc
“It was a very positive experience for me and I would highly recommend Ryan and his team at Wilson Electric in Whitby, Ontario.”
Rand Electric
“He patiently answered all of my questions, thoroughly explained the operational points of the generator and provided quidance when I created my online account at the Generac Mobil Link website.”
LK Electric
“Not only did he diagnose and fix the issue, but he also took the time to explain everything to me in a way that was easy to understand.”
Why these companies made our list
What customers say about contractors in Ajax
- “Very professional and honest electricians, got the electrical panel upgraded, work done properly and left the place neat and tidy.” — customer of Eco Electrical Contractors
- “I would highly recommend them to anyone in need of an electrician.” — customer of NSW Electric
- “The electricians' attention to detail and the high-quality workmanship exceeded my expectations.” — customer of Arjo Electric Inc.
- “Sam is an excellent electrician. Very knowledgeable and takes his time to understand the root cause.” — customer of Eco Electrical Contractors
Excerpts from public reviews of the contractors listed on this page.
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