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How Do You Prevent Storm Damage to Windows and Doors?

Last updated October 25, 2026

The short answer

Inspect and Maintain Seals Annually

Check the caulking and weatherstripping around every window and door frame at least once a year. Look for cracks, gaps, or areas where the sealant has pulled away from the surface. These small openings can let in significant water during a heavy rainstorm. Reapply a high-quality, exterior-grade sealant to any compromised areas to maintain a watertight barrier.

Pay close attention to the bottom corners of windows and the threshold of doors, as these are common failure points. Clean the surfaces thoroughly before applying new sealant for the best adhesion. In climates with significant seasonal temperature swings, materials expand and contract, which can accelerate wear on seals.

Reinforce Windows Before a Storm

Installing permanent or temporary storm shutters provides the strongest protection for your windows. If shutters are not an option, have pre-cut plywood panels ready to cover each window opening. Ensure the panels are at least 5/8-inch thick and are secured with long screws driven directly into the window frame or surrounding structure, not just into the siding.

For sliding glass doors, consider applying a protective film to the glass to help hold shattered pieces together. You can also use a bar or board in the interior track to prevent the door from being forced open by wind pressure. It is critical to install these reinforcements well ahead of forecasted severe weather.

Secure and Seal Exterior Doors

A door's strength depends on its frame, hinges, and lock. Inspect all hinge screws to ensure they are long and secure in the door jamb. Consider upgrading to a deadbolt lock with a long throw bolt that extends deep into the frame. Install a sturdy door sweep or threshold seal to block water and wind from entering underneath the door.

For double doors, ensure the center meeting point has a strong astragal strip or flush bolt to lock them together. Garage doors are often a weak point; verify they are properly balanced and that the tracks are secure. If your garage door is old or shows signs of bowing, a professional can install a retrofit bracing kit for added strength.

  • Upgrade to impact-resistant doors if possible, especially for entryways.
  • Apply weatherproofing tape around the door frame as a temporary seal.
  • Check that the door's threshold is in good condition and slopes slightly outward.
  • Make sure the door closes tightly against its weatherstripping with no visible gaps.
  • Reinforce the strike plate for the lock with longer screws into the wall stud.
  • Keep the area around the door clear of objects that could become projectiles.

Manage Water Drainage Around Openings

Proper grading and drainage are essential to prevent water from pooling against your foundation and seeping into window wells or under doors. The ground should slope away from your home for at least six feet. Clean your gutters and downspouts regularly to ensure they direct water at least five feet away from the house's perimeter. Extend downspouts if necessary.

Install window well covers over basement window wells to keep out leaves, debris, and heavy rain. Ensure the covers are securely fastened but easy to remove for emergency egress. For doors that open directly to the outside, a small concrete landing pad or patio that slopes away can help divert surface water and protect the door's sill.

What to Do After a Storm Hits

Once it is safe, inspect all windows and doors for any signs of damage, leaks, or broken seals. Look for water stains on interior walls or floors near these openings. If water has entered your home, act quickly to remove standing water and begin drying the area to prevent secondary damage like mold growth. Move wet furniture and belongings to a dry space.

Take photos of any damage for your insurance records. Policies vary, and your insurer decides what is covered. For significant water intrusion or structural concerns, contact local water damage pros. They can assess the situation, perform necessary drying, and recommend repairs to prevent future issues, helping you restore your home's safety and integrity.

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Frequently asked questions

Should I tape my windows before a hurricane?

Taping windows does not prevent them from breaking and offers no structural protection. It can create larger, more dangerous shards. Use properly installed storm shutters or plywood panels instead. These methods are designed to withstand wind pressure and stop flying debris.

How can I tell if my door needs to be replaced?

Look for persistent drafts, visible daylight around the frame, difficulty locking, or warping. Water stains or rot on the door or its frame are clear signs of failure. An older, hollow-core door is also much less resilient in a storm than a modern solid or metal-clad one.

What kind of sealant is best for exterior windows?

Use a high-quality silicone or polyurethane-based exterior caulk labeled for windows and doors. These remain flexible through temperature changes, which is vital for durability. Apply it to clean, dry surfaces in dry weather for a strong, lasting seal that repels water effectively.

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