Window Weatherproofing

Learn how to seal drafty windows and improve your home's energy efficiency.

Safety Warning

Use proper safety equipment when working with caulk and weatherstripping materials. Ensure proper ventilation. When working on upper floors, use appropriate ladder safety. Keep work area clear of hazards.

Tools & Materials

  • Caulk gun
  • Weatherstripping
  • Utility knife
  • Putty knife
  • Cleaning supplies
  • Safety glasses
  • Work gloves
  • Draft detector

Weatherproofing Steps

Inspect Windows

  • Check for drafts
  • Identify leak points
  • Test window operation
  • Note damaged areas

Apply Weatherstripping

  • Clean surfaces thoroughly
  • Measure and cut strips
  • Apply adhesive backing
  • Test window closure

Caulk Application

  • Remove old caulk
  • Clean thoroughly
  • Apply new caulk
  • Smooth bead

Additional Insulation

  • Install window film
  • Add foam tape
  • Check for gaps
  • Test effectiveness

Prevention Tips

  • Check seals seasonally
  • Clean tracks regularly
  • Monitor for condensation
  • Replace worn materials
  • Keep drainage clear
  • Test window operation
  • Document problem areas
  • Schedule annual checks

Common Issues

Condensation

Excessive moisture between panes may indicate seal failure. Consider dehumidification or window replacement.

Shrinking Caulk

Use high-quality exterior caulk rated for your climate to prevent shrinking and cracking.

Stuck Windows

Ensure weatherstripping doesn't interfere with window operation. Adjust or trim as needed.

Video Tutorial

Watch our comprehensive guide on weatherproofing windows and improving energy efficiency.