Paver Sealing in St. Augustine, FL

Paver Sealing in St. Augustine

St. Augustine's combination of Matanzas River salt air, Atlantic humidity, and over 52 inches of annual rainfall creates some of the harshest exterior maintenance conditions in Northeast Florida. Pavers in Anastasia Island and Davis Shores neighborhoods typically need resealing every 18–24 months rather than the standard 3-year cycle because the coastal environment breaks down sealer faster. Roofs in the historic district and the older neighborhoods west of US-1 accumulate Gloeocapsa magma algae quickly — shaded surfaces see visible black streaks within two years of the last cleaning. St. Johns County's Florida Building Code requirements fall under wind zone Risk Category II, which means exterior surfaces here are designed for and regularly exposed to conditions that accelerate wear.

In Northeast Florida's humid subtropical climate, unsealed pavers absorb water, UV radiation, and salt air constantly. The result is fading color, washed-out joint sand, and the kind of algae and mold growth that spreads fast once it gets a foothold. Paver sealing creates a protective barrier that slows all of it — restoring the original color, stabilizing the joints, and giving you a surface that's easier to clean and slower to stain.

The sealing process begins with a deep pressure wash to remove algae, mold, oil, and surface staining. Once the pavers are clean and fully dry — usually 24 to 48 hours depending on humidity — we re-sand the joints with polymeric sand rated for Florida's rainfall before applying sealer in two coats.

We use solvent-based and water-based options depending on the look you want. Solvent-based sealers give a wet, enhanced color and a slightly glossy finish. Water-based sealers are lower-sheen and better suited for travertine or light-colored pavers where the natural look matters more than pop. Both options are rated for Florida's UV index.

In St. Johns County's coastal zones, we typically recommend re-sealing every 2–3 years, though driveways with regular vehicle traffic and pool decks with heavy chemical exposure often benefit from resealing every 18 months. We'll tell you where your pavers land when we do the estimate.

Sealed pavers also hold joint sand longer — a practical point for anyone who has watched ants undermine a paver edge or weeds sprout from joints the season after a heavy rain. Polymeric joint sand hardens slightly when watered and resists erosion, which is why we always re-sand before sealing rather than skipping that step.

We are veteran-owned and operated, with over 8 years serving Northeast Florida homeowners. Our crew shows up on time, uses commercial-grade equipment, and doesn't leave until the job site is clean.

Paver Sealing in St. Augustine — FAQ