
Deck Builders Markham
Professional deck construction in Markham. Custom decks, railings, fences for Unionville, Thornhill, Cornell, Angus Glen homes.


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WSIB coverage and $5M liability insurance
20+ Years Experience
Trusted deck builders serving Markham
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Professional Deck Builders in Markham
Markham's heritage Unionville area requires deck designs that complement historic architecture. Our team has experience with heritage-appropriate designs.
Deck Master Inc. brings over 20 years of experience to Markham and Markham & Unionville. We specialize in custom composite decks, cedar and pressure-treated wood decks, aluminum and glass railings, privacy fences, pergolas, and outdoor privacy screens.
Every project includes a 2-year workmanship warranty, full permit handling, and dedicated project management. We serve all Markham neighborhoods including Unionville, Thornhill, Cornell, Angus Glen, and more.

Our Services in Markham
Complete outdoor living solutions for Markham homeowners
Markham Areas We Serve
Professional deck building throughout Markham & Unionville
Frequently Asked Questions
Common questions about deck building in Markham
How much does a deck cost in Markham?
Deck costs in Markham typically range from $45-85 per square foot for pressure-treated wood, $65-120 for cedar, and $85-175 for composite materials. The average Markham deck project (275-425 sq ft) costs between $15,000-$45,000 depending on materials, design complexity, and site conditions. Contact us for a free, detailed estimate.
Do I need a permit for a deck in Markham?
City of Markham requires permits for decks over 600mm above grade. Our team handles all permit applications and inspections as part of our full-service deck building process in Markham. We ensure your deck meets all local building codes and safety requirements.
How long does deck construction take in Markham?
Most deck projects in Markham take 3-7 days for construction once permits are approved. Permit approval typically takes 2-4 weeks. Larger or more complex projects may take 2-3 weeks. We provide a detailed timeline during your free consultation.
What deck materials do you recommend for Markham homes?
For Markham homeowners, we often recommend composite decking (Trex, TimberTech) for low maintenance and 25-50 year warranties. Cedar is excellent for natural beauty, while pressure-treated is perfect for budget-conscious projects. Our experts help you choose based on your lifestyle, budget, and home style.
Ready to Build Your Dream Deck in Markham?
Get a free estimate from Markham's trusted deck builders