Pool Deck Cleaning
Remove the algae and grime that make pool surrounds slippery — without harsh runoff into the water
Typical cost
$150–$450
Job duration
2–4 hours
How often
1–2x per year
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A pool deck lives in the wettest, most chemically complex environment on your property: constant splash-out, sunscreen and body oils, mineral-heavy water, and shade lines that grow algae fast. That combination makes decks slippery and dingy well before the rest of the hardscape. Professional pool deck cleaning removes organic growth and buildup with methods matched to the deck material — and keeps cleaning chemicals out of your pool water.
Why Pool Decks Get Slippery
The dark film that forms around pools is mostly algae and mildew feeding on a steady supply of moisture and organic material — sunscreen, body oils, leaf debris. It thrives in splash zones and shaded strips along walls and furniture, and it's genuinely dangerous: wet algae on smooth concrete is as slick as ice.
Pressure washing alone knocks the visible film off but leaves spores in the surface pores, which is why blasted decks turn green again in a matter of weeks. Professional cleaning pairs low-to-moderate pressure with an algaecidal wash that kills growth at the root, so the deck stays clean and grippy for a full season or more.
Different Deck Materials, Different Methods
The right approach depends on what your deck is made of — this is where experience matters most:
- Broom-finished or stamped concrete: the most forgiving — moderate pressure with a surface cleaner plus a soft-wash pre-treatment
- Kool deck / textured acrylic coatings: low pressure only — high PSI strips the coating and leaves bald patches that must be resurfaced
- Pavers: gentle pressure to preserve joint sand, with re-sanding afterward if joints wash out
- Travertine and natural stone: soft wash with stone-safe cleaners — acidic products and high pressure both etch and pit the surface
- Wood pool decks: low pressure with the grain, same as any deck, plus faster re-sealing cycles due to constant moisture
Protecting the Pool During Cleaning
The main thing separating a pool-experienced company from a general pressure washer is runoff management. Cleaning solutions — even standard sodium hypochlorite mixes — change pool chemistry if significant amounts wash in, and degreasers or rust removers are worse.
A good crew works away from the pool edge, controls rinse direction, and keeps solution application light near coping. Expect them to ask about your pool's edge type and to plan the rinse path before starting. After the job, test and rebalance your water; minor adjustment is normal, a green or cloudy pool the next day is not.
Timing and Maintenance
The natural windows are pool opening (clean off the winter's accumulation before the season starts) and closing (remove the summer's oils and algae so they don't cure in place all winter). In year-round swim climates, an annual or twice-annual wash keeps the deck safe.
Between professional cleanings, rinsing the splash zone weekly and keeping deck furniture shifted occasionally (so shade lines move) meaningfully slows regrowth.
Common Questions About Pool Deck Cleaning
Will deck cleaning chemicals hurt my pool water?
Can you pressure wash a Kool deck?
How much does pool deck cleaning cost?
How do I keep the deck from getting slippery again?
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