Siding Installation in Hamilton, Ontario
New siding improves insulation, moisture protection, and curb appeal — Bosani Roofing installs vinyl and fibre cement systems built to handle Hamilton's temperature swings.
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Quick answer: Full siding replacement on a standard Hamilton home costs $8,000–$18,000 for vinyl and $15,000–$25,000+ for fibre cement (Hardie Board). Vinyl siding is the most common choice in Hamilton — it won't rot, peel, or require painting in Ontario's climate. Fibre cement offers superior impact resistance and a longer warranty, making it the premium choice for escarpment-exposed homes where wind-driven debris is common.
Our Work in Hamilton
Three Signs You Need Siding Installation
🔨 Your siding is cracking or pulling away
Vinyl siding that has shrunk, cracked, or gapped is no longer a moisture barrier. Hamilton's freeze-thaw cycles force water into even small gaps, leading to sheathing rot.
💨 Drafts in rooms that face prevailing wind
Failed siding is a significant source of air infiltration. New siding with house wrap reduces drafts and heating costs.
🏗️ Planning to re-roof and do everything at once
Combining siding and roofing work saves mobilization costs and ensures consistent flashing at the roof-wall junction.
When You Need It
⚡ Visible mold on interior walls behind siding
Moisture infiltration through siding eventually appears on interior drywall — by this stage, sheathing is often compromised.
⚡ Woodpecker or pest damage
Gaps from woodpeckers or insects in older wood siding are direct water entry points.
⚡ Selling in the next 2–3 years
Updated siding is one of the highest-ROI home improvements in the Hamilton market.
⚠️ What Happens If You Wait?
Failed siding allows wind-driven water into the wall assembly. Sheathing replacement adds $3,000–$8,000. Insulation replacement in a saturated wall cavity runs $2,000–$5,000. Mold remediation is $3,000–$10,000. A proactive siding replacement avoids all three.
6 Steps From Call to Complete
What to expect every time Bosani Roofing shows up at your home.
Inspection & Sheathing Assessment
We inspect existing sheathing before quoting. Any compromised sheathing is noted and priced separately.
Product Selection
Vinyl or fibre cement options reviewed — color, profile, and budget. Sample boards provided where needed.
Old Siding Removal
Existing siding removed. Sheathing inspected and repaired as needed. All penetrations temporarily sealed.
House Wrap Installation
New moisture barrier applied over sheathing — critical for energy efficiency and moisture control in Ontario's climate.
Siding Installation
New siding installed per manufacturer specs with correct nailing, spacing, and ventilation at top and bottom.
Trim, Caulking & Cleanup
All trim, j-channel, corner posts, and window surrounds installed and caulked. Property cleaned completely.
"Bosani replaced the vinyl siding on our 1970s bungalow. Found rotten sheathing in two corners during removal — showed me photos, gave me a written change order, and fixed it before the new siding went up. Completely professional."
"New Hardie Board throughout. Bosani coordinated with our roofer (also Bosani) to make sure flashing was done correctly at the roof-wall junction. Result looks and performs like a much newer home. Highly recommend."
Frequently Asked Questions
Honest answers about Siding Installation in Hamilton, Ontario.