Exterior door replacement improves energy efficiency, security, and curb appeal in one project. Here is a complete Ontario guide for 2026.
Why Replace Exterior Doors
Drafty doors add 5-15% to heating bills. Security upgrades significantly with modern multi-point locking systems. Front door curb appeal directly affects buyer first impressions.
Steel Doors: $800-$2,000 installed
Most common in Ontario. Polyurethane foam core, R-5 to R-15 insulation. Durable, low maintenance, best security rating. Widest range of styles and finishes.
Fibreglass Doors: $1,200-$3,500 installed
Premium choice. Realistic wood grain without maintenance requirements. Better insulation than steel. Does not rust, dent, or expand/contract with Ontario temperature swings. Most popular premium upgrade.
Wood Doors: $1,500-$5,000+ installed
Classic aesthetic. Requires painting or staining every 2-4 years in Ontario climate. Common in heritage and custom homes.
Energy Performance
Look for ENERGY STAR Canada certified doors with foam-filled frames and weatherstripping rated for Ontario temperatures (-40C rated). Multi-point locking reduces air infiltration vs single-point.
Permits
Replacement in same rough opening: no permit required. Enlarging the opening: structural permit required.
Heritage
Heritage Conservation District properties may require Heritage Permit for door profile changes.
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