How much does siding replacement cost?

Siding replacement in Ottawa typically runs between $8,000 and $25,000+ for an average home, depending on the material, size, and complexity of the project. Most homeowners with a standard 1,500–2,000 sq ft two-storey end up in the $12,000–$18,000 range for a full replacement with vinyl siding.

The biggest cost driver is your choice of material. Vinyl siding remains the most popular option in Ottawa and for good reason — it handles our freeze-thaw cycles well, requires minimal maintenance, and comes in at roughly $6–$12 per sq ft installed. Fiber cement (like James Hardie) is a step up in durability and curb appeal, running $12–$20 per sq ft installed, and it holds paint exceptionally well through Ottawa winters. Engineered wood sits in a similar range to fiber cement, while natural wood and brick or stone veneer can push $25–$40+ per sq ft and are typically reserved for accent areas or premium projects.

Labour accounts for roughly 40–50% of the total cost. Factors that push your quote higher include removing and disposing of existing siding (especially if there are multiple layers), repairing sheathing or water-damaged framing underneath, adding or upgrading house wrap and insulation, and complex architectural features like dormers, bay windows, or multiple stories. Homes in older Ottawa neighbourhoods like the Glebe or New Edinburgh sometimes reveal surprises once the old siding comes off — rotted sheathing or outdated insulation that needs addressing before new material goes on.

Ottawa-specific considerations worth knowing: a siding replacement typically does not require a City of Ottawa building permit unless you're changing the structure or adding insulation that affects the building envelope significantly — but always confirm with the City at 613-580-2424 or ottawa.ca/building. If your home is in a Heritage Conservation District, material choices may be restricted, so check before committing to a product.

For DIY vs. hiring a pro — siding installation is not a beginner project. Improper installation leads to water infiltration, which in Ottawa's climate can cause serious damage within a season or two. Flashing around windows, doors, and corners must be done correctly. This is firmly in hire a professional territory for most homeowners.

Your next steps:

• Get 3 quotes from licensed contractors — prices vary significantly in Ottawa
• Ask each contractor about their house wrap and flashing approach, not just the siding product
• Request references from recent Ottawa-area projects
• Ask whether the quote includes disposal of old siding and any sheathing repairs

Browse verified siding contractors in our Ottawa contractor directory to connect with licensed professionals in your area.