Protect your deck from four-season weather
Markham experiences extreme temperature swings, heavy snow, freeze-thaw cycles, and humid summers. This variable climate demands proactive deck maintenance to prevent premature deterioration.
Post-Winter Inspection: Look for damage from ice and snow
Spring Cleaning:
Sealing: Spring is ideal for applying stain or sealer. The mild temperatures and moderate humidity allow proper drying.
Regular Upkeep:
UV Protection: Markham's summer sun can fade and dry out decking. Quality sealers with UV inhibitors protect against damage.
Winter Preparation:
Furniture Storage: Store cushions and lightweight furniture indoors to prevent winter damage.
Snow Removal:
Freeze-Thaw Management: Markham's frequent freeze-thaw cycles are destructive. Ensure proper drainage so water doesn't pool and freeze on deck surface.
Pressure-Treated Wood:
Cedar:
Composite:
Moisture Control: Markham's humidity and precipitation make moisture management essential. Ensure gaps between boards for drainage and airflow.
Ventilation: Proper airflow under deck prevents moisture buildup that leads to rot and mold.
Structural Integrity: Freeze-thaw cycles can loosen fasteners and compromise connections. Annual inspections prevent dangerous failures.
Consider professional maintenance every 2-3 years:
Investment in quality sealers and regular maintenance extends deck life by decades. In Markham's challenging climate, neglected decks deteriorate rapidly while maintained decks last 20-30+ years.
Expert care to protect your deck from Markham's variable climate.
Contact UsWe source quality materials and tools from leading construction retailers across Canada & North America.
Book a free consultation. We'll discuss your project and provide a fixed quote.
Book Free Consultation →Deck building costs in Markham 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 Markham, 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 Markham'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 Markham 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 Markham 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 Markham'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 Markham 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.