How Often Should You Reseal a Deck in Texas Heat?

San Antonio's climate is uniquely hard on exterior wood finishes — intense summer UV, sudden humidity swings, and enough winter freeze-thaw cycles to stress a finish that would hold up longer in a milder climate.

General Resealing Timeline

• Full sun, south- or west-facing decks: every 1–2 years
• Partial shade or covered decks: every 2–3 years
• Decks under a solid patio cover: every 3–4 years

Signs You're Overdue

• Water no longer beads on the surface — it soaks in instead
• Graying or silvering has become visible across the boards
• Wood feels rough or splintery underfoot
• You can see the stain has worn through in high-traffic paths

The water bead test is the fastest way to check: splash a cup of water on a dry board in full shade. If it beads up, your finish is still working. If it soaks in within a minute or two, it's time to reseal.

Why Skipping a Season Costs More Later

Once UV breaks down the surface fibers of unsealed wood, moisture gets into the grain and accelerates checking and splitting. A deck that's gone two seasons without stain often needs a heavier sanding pass — and sometimes board replacement — that a deck on schedule would never have needed.