Prevent Door Seal and Weatherstrip Leaks

Cost Savings

Checklist Tasks

• Inspect all door seals for wear or cracks that could allow water entry.
• Run a dollar bill test along each door to identify seal gaps.
• Clean weatherstrips with isopropyl alcohol to remove dirt.
• Apply silicone-based conditioner to seals to prevent drying and cracking.
• Check for missing or loose retainers securing weatherstrips to the frame.
• Examine lower door edges for debris that might misalign seals.
• Shine a flashlight inside to spot daylight leaks around door perimeters.
• Test door closure for proper alignment and even seal compression.
• Inspect seams for trapped moisture to prevent hidden rust.
• Check that door drain holes are clear to avoid water pooling.
• Note recurring condensation or mildew odors as signs of hidden leaks.