Short answer: travertine and pool decks in Stuart should be sealed with a breathable, penetrating (impregnating) sealer, not the glossy film-forming coat used on many driveways. It protects against stains and salt while leaving the surface textured and cool underfoot. Expect roughly $1.25–$2.50 per sq ft for cleaning and sealing, every two to three years.
A pool deck is the hardest surface on most Stuart properties. It is wet every day, sits in full sun, takes splash-out from chlorine or salt systems, and gets walked on barefoot. A product that works on a shaded front walk can turn slick, cloudy or patchy within one summer on a deck. That is why this page is separate from our driveway work: the stone and the conditions differ, and so does the sealer.
Why stone decks need a different sealer
Concrete pavers are dense and fairly uniform. Travertine is a limestone with open pores and natural voids; shell stone (the coral-and-shell material often sold as keystone) is softer still. Put a thick acrylic film on either and two things go wrong. Moisture coming up from the base gets trapped under the film and shows as white haze, and the slick top coat loses the grip the stone had naturally. A penetrating sealer works below the surface instead. It lines the pores so water, sunscreen, leaves and pool chemicals bead up rather than soaking in, and the stone still breathes.
- Travertine: penetrating sealer only, natural or a light enhancer if you want a little more color. No gloss.
- Shell stone and coral stone: a penetrating sealer suited to very soft stone, applied lightly, since too much product can darken it unevenly.
- Concrete pavers around a pool: a low-sheen or matte sealer, with a fine grit additive in the last coat where people walk wet.
Salt pools and travertine
Salt chlorine systems are common in Martin County, and they matter for stone. Splash-out dries on the deck and leaves salt in the pores. As it recrystallizes it can flake the surface of soft travertine and shell stone over time, which installers call spalling. A good penetrating sealer slows that down by keeping water and dissolved salt from getting deep into the stone. It does not make the stone immune. Rinsing the deck with fresh water now and then, especially around the steps and spillover, is the cheap half of the job.
What the work involves
- Cleaning without acid. Travertine and shell stone are etched by acidic cleaners, so we use stone-safe detergents and controlled pressure. Pool water is protected from runoff.
- Grout and joints. Open joints between pool-deck pavers are filled; missing or cracked grout on travertine set in mortar is noted on the quote.
- Drying time. Stone holds water. We let it dry fully before sealing, which may mean the cleaning and sealing are on separate days after a rain.
- Sealing in thin coats. Penetrating sealer goes on until the stone stops absorbing, and the excess is wiped off so nothing is left standing on the surface.
Prices on this page are estimates for typical Stuart pool decks. The number we hand you comes after we have seen the stone, measured the deck and checked how much it absorbs, which tells us how much product the job needs.
What it costs
Travertine and stone sealing usually lands at $1.25–$2.50 per sq ft, cleaning included. A deck of about 1,000 square feet with concrete pavers and full prep is typically $1,600–$2,750. A non-slip additive adds about $0.10–$0.25 per sq ft. If an earlier film-forming sealer has gone white or is peeling, it has to be stripped first, which adds $1.00–$2.25 per sq ft. The Stuart cost guide shows every line.
Related work
Sunken pavers at the pool edge or around a drain should be reset before sealing, or the sealer just highlights the dip. That is covered on our paver repair and re-sanding page. For the driveway and front walk, the main paver sealing service explains finishes and timing.
Pool deck and travertine questions
Should travertine around a pool be sealed at all?
Usually yes, with a penetrating sealer. Unsealed travertine absorbs sunscreen, leaf tannins and rust from furniture, and salt water can work into its pores. A penetrating product protects it without making it slick.
Will a wet-look sealer work on my pool deck?
We don’t recommend it where people walk barefoot and wet. A glossy film is slipperier and holds more heat. Wet-look finishes suit driveways and entries far better.
Can you seal the deck while the pool is in use?
The deck needs to stay dry and off-limits while the sealer cures, typically the rest of that day and overnight. We tell you the exact window for the product before we start.
How often does a pool deck need resealing?
In full Florida sun with daily use, every two to three years is typical. Shaded or screened decks often go a little longer.
Last reviewed October 2026.