About Ontario Generator Systems
Ontario's #1 Generac Warranty Dealer — serving homeowners and businesses with generator sales, service, warranty, and installation since 2016.
Our Story
Ontario Generator Systemswas founded in 2016 by Justin Collins, bringing over 16 years of Generac experience to homeowners and businesses across Central Ontario. Based in Newmarket, we have grown into the region's most trusted generator service provider — Ontario's #1 Generac Warranty Dealer.
Today we serve communities from York Region north to Parry Sound, west to Collingwood and Orangeville, and east to Haliburton — covering residential, commercial, and industrial projects. With over 1,000 jobs completed, every installation is backed by our authorized Generac dealer status and performed by certified technicians.
Our commitment to quality goes beyond the technical. We believe in transparent communication, fair pricing, and building long-term relationships with every customer. When the next storm hits, we want you to feel confident — not just in your generator, but in the team that installed and maintains it.
Team Photo
Our Mission
To deliver dependable backup power solutions with unmatched craftsmanship and customer care — so Ontario families and businesses never have to worry when the lights go out.
Quality Workmanship
Every installation meets or exceeds Ontario Electrical Safety Authority standards. We use only manufacturer-approved components and follow rigorous quality control procedures on every project.
Customer First
We build lasting relationships through transparent communication, honest pricing, and unwavering dedication to your satisfaction. Your peace of mind is our priority.
Reliability
When the power goes out, your generator must perform. We engineer every installation for maximum dependability and back it with responsive ongoing support.
Community
We’re proud to serve communities from York Region to Muskoka and cottage country. Our technicians live and work in the regions we serve, and we’re invested in keeping our neighbours powered.
Meet Our Team
Certified professionals dedicated to keeping Ontario powered.
Justin Collins
Owner & Lead Technician
With over 16 years of Generac experience, Justin founded Ontario Generator Systems and personally oversees every project. Known for going above and beyond — including emergency calls on Christmas Eve — Justin and his team deliver the kind of service that has earned Ontario Generator Systems its reputation as Ontario's #1 Generac Warranty Dealer.
Certifications & Partnerships
Recognized credentials that back every project we deliver.
Ontario's #1 Generac Warranty Dealer
ESA Licensed Electrical Contractor
TSSA Certified
Generac PowerPro Premier Dealer
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