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Serving Whitby, Durham, York Region, the GTA, and nearby communities, DMZ Maintenance & Contracting Services provides dependable home repairs, upgrades, and preventative maintenance with a focus on quality, honesty, and care.
Whether you're fixing up to sell, settling into a new place, or tackling the to-do list you never got to — we’re here to help get it done right, the first time.
From small offices to retail spaces across Whitby, Durham, York Region, and the GTA, DMZ Maintenance & Contracting Services is here to help breathe new life into your business.
Whether it’s replacing old ceiling tiles, refreshing baseboards, or tackling those little repairs that keep piling up, our team is dedicated to providing fair, reliable service to help your space look its best.
From commercial office spaces to larger facilities across Whitby, Durham, York Region, and the GTA, DMZ Maintenance & Contracting Services offers reliable, high-quality repairs, installations, and general maintenance.
With a trusted network of skilled professionals, we’re ready to tackle a wide range of projects to keep your business running smoothly, efficiently, affordably, and with care.

Meet DJ – Founder of DMZ Maintenance & Contracting | Whitby, ON
Based in Whitby, Ontario, DJ is a skilled tradesman passionate about helping homeowners and businesses with handyman, maintenance, and contracting services throughout Durham, York, the GTA, and surrounding areas.
Known for his honest approach and commitment to doing things right the first time, DJ focuses on delivering quality workmanship while ensuring every customer feels valued and understood. Whether handling small repairs or coordinating larger projects, he brings a practical, problem-solving mindset and a dedication to lasting results.
When specialized skills are needed, DJ works closely with a trusted network of professionals to provide the best solutions. His goal is simple: to make clients’ lives easier and their spaces better—without the hassle.
DMZ Maintenance & Contracting is ready to help get your project started and completed with care.
We believe in doing things right: clear communication, honest advice, and workmanship you can rely on. From electrical and plumbing tasks to preventative maintenance and custom upgrades, our goal is to take the stress out of home repairs and renovations — and replace it with peace of mind.
At our company, it’s not just about fixing problems — it’s about building lasting trust, one project at a time.
PROUDLY CANADIAN.
FAMILY-OWNED.

DJ was punctual, courteous and so efficient throughout the whole service process, which saw us change out all my smoke detectors, and a few light bulbs in hard to reach areas of my home.
I am looking forward to booking my next service with DMZ Maintenance & Contracting Services, as they are honest, communicative and made me feel comfortable that the work would get done properly and with care. Highly recommend giving them a try - Just amazing!

From the moment I spoke to DJ, Owner, at DMZ Maintenance & Contracting Services, I knew that I was in good hands. He took the time to listen to what I needed, as I was looking to put my condo up for sale and he created a plan and estimate for me right away. The services included changing out 4 pot lights, caulking and helping me pack up my smaller belongings and moving those to a facility storage just down the street. The job we done on time and it went so smoothly! I highly recommend!

DMZ Maintenance & Contracting Services was recommended to us by a friend. I cannot tell you how happy we were when DJ, the Owner, came to see our ceiling fan that needed replacing. He was on time and so friendly during the whole process, and, even cleaned the parts that were being reused. We also had some caulking re-done in the kitchen area and he left our place so clean after he finished with the tasks. Our friend was right - this maintenance service provider was exceptional. We loved that they are local as well!

HEAD OFFICE HOURS OF OPERATION
MON - FRI: 9 a.m. to 5:00 p.m.
SAT & SUN: CLOSED
RESPONDS WITHIN 1 BUSINESS DAY
LOOKING FORWARD TO STARTING
YOUR NEXT PROJECT!!
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DMZ Maintenance & Contracting Services:
3601 Hwy 7 E., Suite 1005
Markham, ON L3R 0M3
Toll Free: 1 (833) DMZ-2357
Local No.: (289) 201-6DMZ