Every 2–3 years in NWA's climate. Arkansas's intense UV and humidity break down sealants faster than in northern states. Quick test: pour water on the deck — if it soaks in rather than beading up within a few seconds, it's time to reseal. Don't skip cycles — neglected decks deteriorate rapidly here.
Composite is genuinely low-maintenance. Sweep off leaves and debris regularly, rinse with a garden hose occasionally, and use a composite deck cleaner once a year if needed. Never use a pressure washer on high settings — it can damage the surface. No staining, no sealing, no sanding required.
General rule: if the subframe (joists, beams, posts) is solid, repair and refinishing makes sense. If the structural members are rotted or compromised, replacement is usually more cost-effective. We give you an honest assessment during the free on-site visit — we'll tell you exactly what you're dealing with and the most cost-effective path forward.
Modern capped composite decking is highly resistant to mold and mildew. Earlier generation (pre-2010) composite products had more mold issues. Today's Trex, TimberTech, and Fiberon products have a protective polymer cap that resists mold very effectively in NWA's humid climate. Surface mold that does appear can be removed with a composite deck cleaner.