Exterior Caulking & Weatherproofing
Professional Window & Door Exterior Caulking & Sealing Toronto applying weather-resistant sealant by CNG Contracting.

Window & Door Exterior Caulking & Sealing

Our Window & Door Exterior Caulking & Sealing service in Toronto & GTA keeps your home protected from drafts, leaks, and moisture damage by ensuring a tight, long-lasting seal. Schedule your technical visit.
Licensed & Insured
15+ Years Experience
Warranty Included
Top Rated
Detail Oriented
Window & Door Exterior Caulking & Sealing
Window & Door Exterior Caulking & Sealing
Window & Door Exterior Caulking & Sealing

Detailed Description

We remove old or cracked caulking, thoroughly clean the surfaces, and apply premium-grade sealant designed to expand and contract with weather changes. With our Window & Door Exterior Caulking & Sealing service, we handle the job neatly and efficiently, preventing water intrusion and improving energy efficiency while protecting your Toronto & GTA home from drafts, and leaving your windows and doors looking sharp and performing their best year-round.

Information Technical

  • Scope: professional repair focused on clean, lasting results
  • Sealant selection for exterior exposure
  • Focus on joints, trims, and penetrations
  • Typical time on site: 2 to 6 hours

Frequently Asked Questions

Do you remove the old caulking first?

Yes, absolutely. We cut out and scrape away the old, failed sealant to ensure the new material adheres directly to the building surface for a watertight bond.

How long does the new caulking last?

We use high-performance polyurethane or silicone sealants rated for 15-20 years. These materials are flexible, meaning they won't crack when your home expands and contracts during Toronto's freeze-thaw cycles.

Can you match the color of my window frames?

Yes. We carry a wide range of professional sealant colors (white, black, beige, brown, grey) to match your aluminum, vinyl, or wood frames perfectly for a seamless look.

Requires inspection: Yes
Seasonal service: true
Estimated Time: 2 to 6 hours
Materials included: Not included (unless specified)
Warranty Period: 2 years
Service Complexity Moderate

Why is a Technical Visit necessary?

Exterior caulking isn't just about applying new product; it's about preparation and access. Applying new caulk over old, dirty sealant guarantees failure within months. Our Window & Door Exterior Caulking & Sealing assessment checks the condition of the substrate for rot, measures the gap width (to see if "backer rod" filler is needed), and determines the safest access method for second-story windows.

Booking inspection

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Confirm Your Location

Please verify your project is within our service area to continue

We currently only serve the cities listed above.

Please provide as much detail as possible to help our technicians prepare with the right equipment. The more we know, the faster we can fix it.

Describe Your Request
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