How to Board Up Windows Without Damaging Your House

Last updated: 2025-01-09

Boarding up windows is one of the most effective ways to protect your home during hurricane season. But hammer a nail wrong, and you'll create costly water damage, drywall repairs, or permanent holes in your siding. This guide shows you how to board windows safely, using methods that actually minimize damage and work.

What Does Window Boarding Mean?

Window boarding is the process of covering exterior windows with plywood or other protective panels to shield glass from wind, debris, and storm pressure. The panels are anchored to the frame or surrounding structure, creating a barrier between the outside elements and your home's interior. Done right, boarding protects both the window itself and the structural integrity of your walls. Done poorly? You're looking at holes, water intrusion points, and repairs that cost more than the storm prevention was worth.

Preparation: Measure and Gather Materials

Before you touch a tool, measure every window accurately. Measure the width and height of each window opening from the outside, then add 4 to 6 inches to both dimensions so the plywood extends onto the wall or frame. This overlap is critical—it's what keeps water out and anchors everything properly.

Materials you'll need:

• 1/2-inch or 5/8-inch exterior-grade plywood (thicker resists impact better)
• 2.5-inch or 3-inch galvanized deck screws (corrosion-resistant)
• A cordless drill with screw-bit attachments
• A circular saw or hand saw for cutting
• A stud finder to locate frame studs
• Safety glasses and work gloves
• Caulk or weatherstripping tape (optional, for sealing gaps)

Ask the lumber yard to cut your plywood sheets before you leave. Carrying uncut 4x8 sheets is dangerous and makes installation much harder. While you're there, ask for a 45-degree bevel cut on the top corners of each panel—this sheds water away from the top edge instead of pooling.

Screw Method: The Low-Damage Approach

Here's the deal: screws are superior to nails because they hold better, distribute pressure more evenly, and leave smaller holes that are easier to repair. Most damage claims come from nails splitting, popping, or creating stress points that lead to water intrusion down the road.

Step-by-step screw installation:

1. Position the plywood panel so it's centered over the window, extending 2 to 3 inches onto the wall on all sides.
2. Use a stud finder to locate the vertical studs or frame members behind the wall. Mark them lightly with pencil on the plywood.
3. Pre-drill pilot holes through the plywood at each stud location, spacing holes roughly 12 to 16 inches apart around the perimeter. Pilot holes prevent wood splitting and make screws easier to install.
4. Drive 2.5-inch or 3-inch galvanized deck screws through the pilot holes into the studs. Use at least 8 to 12 screws per panel, depending on window size.
5. Check that the panel is flush and level before fully tightening all screws.
6. Apply weatherstripping tape or caulk around the edges where the plywood meets the wall to seal gaps and prevent water seepage.

Galvanized or stainless-steel screws resist corrosion far better than standard steel. They cost a few cents more per screw but save you rust stains and weakening over time.

Anchoring to Different Window Frames

Not all windows sit in the same frame type. Your installation method depends on what's behind the plywood.

Wood frames: Pre-drill and screw directly into the wooden frame or the studs behind it. This is the easiest and most damage-resistant option.

Aluminum frames: Don't screw into aluminum directly—it strips easily and corrodes. Instead, screw into the wall studs around the window using the overlap method described above. Spread the load across multiple studs rather than concentrating force on the frame itself.

Brick or concrete: For homes with brick or stucco exterior, use a drill and anchors rated for masonry. Concrete anchors or shield anchors rated for your wall thickness and screw size work well. Test one anchor first before installing the full panel.

Metal brackets: If your studs are steel or you're in a concrete-block structure, pre-fabricated metal brackets bolted to the structure are your best bet. They distribute load and avoid the damage risk of screwing into metal framing.

Water Protection and Edge Sealing

Storm water doesn't respect your boarding job. It finds the tiniest gaps and works its way inside. Seal all edges with waterproof caulk or self-adhesive weatherstripping tape rated for exterior use.

Apply tape or caulk along the top edge of the plywood first, since water runs downward. Then seal the sides and bottom. A bead of caulk should be about 1/4 inch thick and fully compressed into the gap. If water pools on a horizontal surface (like a flat roof overhang), slope your panel slightly or make sure water can drain off without getting trapped.

Removal Without Leaving Holes

When the storm passes, removal should be straightforward if you used screws. Unbolt or unscrew the panels in the reverse order you installed them. The pilot holes will be visible, but they're small and easy to patch. Fill them with exterior-grade wood filler or caulk, sand smooth when dry, and paint to match.

Nail holes, on the other hand, often require cutting out a section of drywall and patching, or spackling and multiple coats of paint. Screws save you this headache entirely.

When to Hire a Professional

Some homeowners tackle boarding themselves and do great work. Others run into unexpected problems: windows in hard-to-reach second-story locations, mixed frame types, or structural questions they can't answer. Hiring a professional handyman or contractor ensures your windows are boarded correctly the first time, with the right fasteners and sealing.

Professional installers know local building codes, can spot structural issues before they become problems, and often have commercial-grade tools and materials. And they carry liability insurance, so if something goes wrong, you have recourse. If you're unsure about any step in the process, don't guess—the cost of a professional installation is cheap compared to water damage or an unprotected window failing during a storm.

You can get a free estimate and schedule help through our how-it-works process or review our services and pricing to see what fits your timeline and budget.

Frequently Asked Questions

Can I board up windows with just nails?

Nails are weaker than screws and prone to splitting, popping, and creating stress points that lead to water damage. Screws hold better, distribute pressure more evenly, and leave smaller, easier-to-repair holes. If you must use nails, use ring-shank or spiral nails rated for exterior work, and space them 6 inches apart. That said, screws are still the better choice.

How thick should plywood be for hurricane season?

Use 1/2-inch or 5/8-inch exterior-grade plywood. The thicker material (5/8 inch) resists impact better and won't flex as much in high winds. The extra cost is minimal compared to the protection you gain. Don't use interior-grade plywood—it falls apart when wet.

What's the best way to seal gaps around boarded windows?

Apply weatherstripping tape or paintable caulk rated for exterior use along all edges where the plywood meets the wall, frame, or siding. Tape goes down fast; caulk is more durable long-term. Start at the top and work down so gravity helps you. Seal all gaps completely to prevent water intrusion.

Will boarding up windows during hurricane season affect my home's resale value?

Boarding is temporary and leaves no permanent mark if done with screws. Small pilot holes are easily filled and painted over. Remove the boards and patch properly, and future buyers won't know they were there. Many Florida homeowners have boarded windows multiple times without any resale impact.

How long does it take to board up one window?

A single window typically takes 20 to 40 minutes if you're experienced and have your materials ready. Beginners may take an hour per window. Professional installers can complete a full home in one to two days depending on the number and location of windows. Plan your timing so boarding is done a day or two before the storm arrives.

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Protecting your home during hurricane season doesn't have to mean permanent damage to your walls and frames. The right technique, materials, and mindset keep your windows safe while preserving your home's integrity. If you're ready to board up and want expert help, we're here to ensure the job gets done right.

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Need help with hurricane prep, storm cleanup, or home repair in Cocoa, FL and the Space Coast? Request a quote through Hurricane Handyman — get matched with licensed, insured local pros, ready before the next storm.