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How often should you seal your deck?

Thumbtack Editors

It depends on the climate, your deck’s age, its condition and the type of sealer you use.  Some experts recommend adding a sealing product at least once a year, while others advise every three years. If your deck is frequently in hot, direct sunlight or harsh conditions like rain, high humidity or snow, you'll likely need to apply a seal at least once a year. Contact a deck sealing professional near you to find out if it’s time to re-seal your deck.

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