C Rosely Exteriors
Windows & Doors in St. Catharines
About C Rosely Exteriors
* "Get the Phone Number") * #### 905-397-4142 * * * Search nearby
Marketing Gap Analysis
40/100Some room for improvement. A focused campaign could accelerate growth.
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Grow Your Windows & Doors Business in St. Catharines
Products designed for every Windows & Doors contractor — from review collection to fleet branding.
Windows & Doors Cost Guide — St. Catharines (2026)
Typical price ranges for windows & doors work in St. Catharines. Get at least 3 quotes to compare.
Prices in CAD. Based on typical Ontario contractor quotes, 2026. Actual costs vary by scope, materials, and access.
Windows & Doors Licensing in Ontario
Required Licence
No mandatory Ontario licence, but installations should follow OBC
Window and door installations in Ontario should comply with the Ontario Building Code for energy efficiency and structural requirements. Look for Energy Star certified products.
Red Flags to Watch For
- No written warranty
- Non-Energy Star products
- No proof of installation training
- Won't show product certifications
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