Family-owned and operated since 1982. Quality work, friendly people, and we own most of our own equipment — working all across Ontario.
Sentry Electric Inc. is a family-owned and operated electrical contracting company based in Innisfil, Ontario. We’ve been in business since 1982, and we still run the company the same way — hands-on, honest, and focused on doing the job right.
We’re known for great work and friendly people. When you call Sentry, you’re dealing with a real crew that shows up, communicates clearly, and takes pride in the finished result. No big corporate layers — just a family business that cares about every project.
We work all around Ontario — sports fields, commercial sites, industrial facilities, arenas, and construction projects. From Simcoe County to jobs further afield, the same standards apply wherever we go.
More than four decades of electrical and lighting work across Ontario.
Sentry Electric started in 1982 as a small, family-run electrical contractor. Over the years we’ve grown our capabilities — sports lighting, commercial and industrial work, venue support, scoreboards, and site infrastructure — while staying true to how we began: family-owned, family-operated, and focused on the customer.
Sports lighting became a major part of what we do. We’ve completed 150+ sports lighting installations for fields, parks, schools, and clubs. That experience carries into every job: planning, equipment, aerial access, and finishing the work so the facility is ready for use.
Today we still operate out of Innisfil, with crews and equipment that travel to projects all around Ontario. Clients hire us because the work is solid, the people are easy to deal with, and we show up with what we need to get the job done.
Simple things that make a real difference on the job.
We’re a family business. Decisions stay close to the work and the people who do it. That means faster answers, clearer communication, and someone who actually stands behind the job.
Quality workmanship and a crew that’s easy to deal with. Clients hire us again because the job gets done right — and because working with us is straightforward.
Crane, aerial boom trucks, and the gear we need for high work and site installs. Owning our equipment means better schedule control, fewer delays, and consistent quality.
Based in Innisfil, we take on projects throughout Ontario — sports lighting, commercial and industrial electrical, venues, and construction support wherever the job is.
Every project starts with a clear conversation about scope, timing, and site conditions. We plan the work, show up with the right people and equipment, and keep you updated as the job moves forward.
Because we own most of our own equipment, we’re not waiting on someone else’s crane or boom truck. That helps us stay on schedule and control quality on high-mast lighting, arena work, scoreboard installs, and elevated commercial jobs.
When the work is done, we want the facility ready for use — lights aimed, systems commissioned, and the site left in good shape. That’s the standard we hold ourselves to on every job, large or small.
We own most of what we need on site — so the job isn’t held up waiting for a rental.
For pole work, high-mast lighting, heavy lifts, and controlled installs on sports and industrial sites.
Basket and boom access for fixture hanging, re-lamping, scoreboard work, and elevated commercial service.
The tools and equipment our crews need for underground, panel work, and day-to-day electrical installs.
Owning the equipment means better scheduling, fewer third-party delays, and consistent quality from our own operators.
Electrical contracting with a strong focus on sports lighting, commercial work, and reliable site delivery.
Sports field lighting, high mast systems, arenas, velodromes, scoreboards, aerial re-lamping, and outdoor packages. Over 150 sports lighting installations completed.
Electrical maintenance and construction for commercial and industrial clients — panels, distribution, rooftop equipment, fit-outs, and ongoing service.
Site electrical infrastructure including underground conduit, duct banks, pole foundations, and coordination with general contractors on new builds.
Crane, aerial boom trucks, and site gear so we control access, scheduling, and quality on every job.
Safety is not a slogan — it is how we plan and execute work.
We are actively developing and maintaining our occupational health and safety program toward COR® 2020 certification standards.
All electrical work is performed by a licensed contractor to the Ontario Electrical Safety Code. ESA Licence #7002769 — licensing is non-negotiable on every job.
From pre-job assessments and safe work procedures to ongoing training, we treat planning as part of quality delivery.
Owning most of our crane and aerial assets means we control access methods and reduce reliance on third-party equipment for critical lifts and high work.
Based in Innisfil, we work all around Ontario:
Wherever the project is, you get the same family-run approach: great work, friendly people, and crews that show up ready with the right equipment.
Quality workmanship, friendly service, and accountability. Being family-owned and operated means you’re never just a number — and we take that seriously.
We own most of our own equipment so we can control the schedule and the quality. We work all across Ontario because good clients and good projects aren’t limited to one town.
Sports lighting, commercial electrical, industrial work, or site infrastructure — anywhere in Ontario.