Deck Maintenance Guide for Ontario Homeowners (2026)

Annual Tasks

• Sweep debris monthly
• Wash with mild soap and water annually
• Check for mould in shaded areas
• Clear snow with plastic shovel (avoid metal)

What to Avoid

• Pressure washing at high pressure
• Harsh chemical cleaners
• Metal shovels for snow removal

Annual Cost

$0–$100/year

Estimate for Toronto homeowners

Annual Tasks

• Sweep and clean thoroughly in spring
• Sand any raised grain or splinters
• Apply deck cleaner and brightener before staining
• Apply semi-transparent stain or oil
• Inspect and replace damaged boards

What to Avoid

• Skipping annual inspection
• Using solid stain on weathered cedar (peel risk)
• Allowing water pooling

Annual Cost

$300–$800/year (DIY staining) or $800–$2,000 (professional)

Estimate for Toronto homeowners

Annual Tasks

• Sweep regularly
• Clean with PVC-safe cleaner for stains
• Check fasteners and deck screws
• Inspect railings annually

What to Avoid

• Harsh solvents
• Abrasive scrub pads
• Metal tools for snow

Annual Cost

$0–$50/year

Estimate for Toronto homeowners

Annual Tasks

• Clean with hardwood deck cleaner
• Apply penetrating hardwood oil (e.g., Penofin)
• Sand any rough spots with fine-grit paper
• Inspect fasteners — hidden fasteners may loosen over time

What to Avoid

• Film-forming sealers (will peel)
• Pressure washing without follow-up oiling
• Leaving oil pooled in grain

Annual Cost

$200–$600/year (oiling)

Estimate for Toronto homeowners

Annual Tasks

• Clean with deck wash in spring
• Allow to dry completely (1–2 weeks)
• Apply water-repellent sealer or stain
• Inspect for popped nails, rot, or cracking
• Replace damaged boards promptly

What to Avoid

• Sealing wet or new lumber
• Allowing water to pool on surface
• Using solid paint on rough PT lumber

Annual Cost

$200–$600/year (sealing) or $600–$1,500 professional

Estimate for Toronto homeowners