Professional deck construction throughout the Greater Toronto Area
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aMaximum Construction provides professional deck building services throughout the Greater Toronto Area. Custom design, quality construction, and transparent pricing.
We source quality materials and tools from leading construction retailers across Canada & North America.
Deck building costs in the GTA typically range from $8,000 to $35,000+, depending on size, materials, and design complexity. Pressure-treated wood is the most affordable option, while composite decking costs more upfront but requires less maintenance. We provide detailed written quotes so you know exactly what you're paying for.
In most municipalities including the GTA, a building permit is required for decks higher than 24 inches (60 cm) from the ground, or attached to the house. Our team handles the permit process and ensures your deck is code-compliant from start to finish.
For the GTA's freeze-thaw climate, composite decking (Trex, TimberTech) performs best — it won't warp, crack, or splinter. Pressure-treated cedar is a great natural wood option with good rot resistance. We'll recommend the right material based on your budget, usage, and aesthetic goals.
A standard deck in the GTA takes 1–2 weeks from permit approval to final inspection. Larger, multi-level decks or those with custom railings and stairs may take 2–4 weeks. We provide a clear timeline before work begins.
Composite decking is made from wood fibres and recycled plastic — it's low-maintenance, doesn't splinter, and carries long warranties (25+ years). Pressure-treated wood costs less upfront but requires sealing, staining, and regular maintenance. Both are strong choices depending on your priorities.
A well-built deck in the GTA can last 15–30+ years depending on materials and maintenance. Composite decks with proper installation typically last 25–30 years. Pressure-treated wood lasts 15–20 years with regular maintenance. Our workmanship warranty covers the structural build.
Yes. Attached decks are ledger-mounted to the house structure using flashing and hardware designed for the GTA's climate conditions. Proper ledger attachment is critical — it must meet Ontario Building Code requirements to ensure safety and prevent moisture infiltration.
We offer aluminum, glass, composite, cable, and wood railing systems. Glass and cable railings maximize views, aluminum is low-maintenance, and wood matches traditional deck aesthetics. All railings are installed to OBC height and load requirements.
Yes. We assess existing decks in the GTA for structural integrity, rotted boards, loose connections, and safety issues. We can repair specific sections or do a full replacement — whichever makes more financial sense for your situation.
Composite decks need only occasional cleaning with soap and water. Wood decks should be cleaned, inspected, and re-sealed or stained every 2–3 years. Keep leaves and debris off the surface, ensure drainage isn't blocked, and check fasteners annually.