FROM DESIGN-TO-BUILD
DECKS | FENCES | BALCONIES
High Quality Materials, Affordable Prices & Satisfaction Guaranteed
Since 2010, Demex Decks has been delivering high-quality custom decks and outdoor structures across Toronto and the GTA.
Whether you’re planning a new backyard deck, a pergola for summer shade, or privacy fencing — we handle it all from design to build. We use only premium materials like Trex®, Azek®, Fortress®, and pressure-treated lumber.
We’re fully licensed and WSIB-compliant, and every project is backed by a satisfaction guarantee.
Serving homeowners in Vaughan, Richmond Hill, Markham, Newmarket, Mississauga, Brampton, Barrie and beyond.
✅ New Deck Construction (Composite, PVC, or Wood)
✅ Custom Pergolas & Outdoor Shade Structures
✅ Aluminum, Glass & Wood Railings
✅ Pressure-treated Privacy Fences
✅ Porch & Stair Builds
To discuss your project, click the button below or give us a call! We will be happy to provide you with a free estimate as well as expert advice and guidance on your project.
Custom-built backyard decks designed to match your lifestyle. Composite, PVC, or pressure-treated wood options available.
Durable and elegant privacy fencing that enhances your yard. Built to last, styled to fit your home.
Choose from aluminum, glass, or wood railing systems — modern safety with style. Our railings meet all Ontario Building Code requirements.
Add character and comfort with a shade structure — perfect for patios, hot tubs, or garden lounging.
Demex Decks has many years of experience in residential construction, so everything you see on the site is certainly within our scope! Much of our work is custom tailored to the individual needs of our clients, so if there is anything you have in mind that you didn’t see on our site, ask us about it! We’ll be happy to discuss your vision with you.