226 Sutherland Crescent, Cobourg, ON L1H 1Z5
Oshawa - Ajax - Pickering - Toronto - GTA

Door Caulking & Weather Sealing Services

Protect Your Home, Reduce Drafts & Boost Efficiency

At Kettle Contracting, we help homeowners across Oshawa, Whitby, Ajax, Bowmanville, Cobourg, Markham, Pickering, Peterborough, Toronto, and Richmond Hill keep their homes comfortable year-round with professional door caulking services. If your doors are letting in drafts, moisture, or heat loss, it’s time for an upgrade that actually lasts.

Why Door Caulking Matters

Proper door caulking isn’t just about plugging a small gap — it protects your home from:

  • Cold drafts in winter
  • Hot air seepage in summer
  • Water penetration that can cause rot or mould
  • Rising energy bills
  • Pests sneaking through unsealed gaps

A professionally sealed door keeps your home tighter, quieter, and more efficient.

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Our Door Caulking Process

  1. Full Inspection & Gap Assessment
    We start by checking every exterior door for failing caulking, moisture penetration, shrinking seals, and general wear.
  2. Removal of Old Caulking
    All deteriorated or cracked material is carefully removed. A clean base ensures your new seal lasts years, not months.
  3. Premium Exterior-Grade Caulking Application
    We use only high-performance, weather-resistant sealants specifically designed for Canadian climate extremes.
  4. Smoothing & Finishing
    Our team applies a smooth, clean finish that looks sharp and blends with your home’s exterior.
  5. Final Quality Check
    We test the seal around the full frame for uniform adhesion and complete weatherproofing.

Signs Your Door Needs New Caulking

  1. Visible cracks or gaps around the frame
  2. Cold air coming in during winter
  3. Water leaking or staining near the threshold
  4. Higher-than-usual heating or cooling bills
  5. Caulking looks brittle, yellowed, or separated
  6. You can see daylight through the frame (never a good sign)

Benefits of Professional Door Caulking

  • Better insulation & reduced energy waste
  • Improved indoor comfort
  • Lower utility costs
  • Protection from moisture, rot, and mould
  • Cleaner look around the door frame
  • Enhanced home value & curb appeal
  • Peace of mind knowing the job is done properly

Types of Doors We Seal

We service all residential and commercial door types, including:

  • Front entry doors
  • Back doors & side entrances
  • Patio sliding doors
  • French doors
  • Garage man-doors
  • Commercial steel & glass doors
  • Multi-unit residential entryways

If it opens, closes, and lets the Canadian air creep in — we seal it.

Why Choose Kettle Contracting?

At Kettle Contracting, we’re proudly Canadian, and so is our work ethic. Homeowners trust us because we offer:

  • Unmatched workmanship
  • High-quality, long-lasting materials
  • Clean, professional finishes
  • Honest pricing and transparent service
  • Friendly, reliable customer care

A team that genuinely values your home

We show up, get it done right, and stand behind everything we seal.

Service Areas

We proudly serve:

Oshawa, Whitby, Ajax, Bowmanville, Cobourg, Markham, Pickering, Peterborough, Toronto, Richmond Hill, and surrounding areas.

Get a Free Quote Today

Ready to tighten up your doors and improve your home’s comfort?
Our team is here to help — no pressure, no pushy sales. Just honest advice and high-quality work.

Request your free estimate now.

Ready to Get Started?

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Leave your contact info for a free quote. We’re looking forward to hearing from you.