Everything you need to know about cleaning your pool deck before opening season — from concrete to pavers to travertine.
Long Island has one of the highest concentrations of residential swimming pools in the Northeast. If you're one of the hundreds of thousands of homeowners with a backyard pool across Nassau and Suffolk County, you know the drill: winter covers come off in late April or May, and whatever's underneath needs serious attention before anyone puts a toe in the water.
Your pool deck — the hardscape surrounding your pool — takes a beating every year. It sits under winter covers collecting moisture, organic debris, and mold for five to six months straight. When that cover comes off, what you find underneath isn't pretty. This guide covers everything about pool deck cleaning on Long Island: the right method for your material, timing, costs, and why this is one surface you don't want to neglect.
A dirty pool deck isn't just ugly — it's genuinely dangerous. The combination of water, bare feet, and algae-covered surfaces creates a slip hazard that sends people to the emergency room every summer. According to the CDC, slips and falls around swimming pools are among the leading causes of recreational injuries in the United States.
Beyond safety, neglecting your pool deck leads to:
The cleaning method depends entirely on what your pool deck is made of. Here are the most common materials we see across Long Island:
The most common pool deck material on Long Island, especially in homes built from the 1960s through the 1990s. Concrete pool decks may be broom-finished (textured for traction), stamped to look like stone, or smooth-finished. All concrete pool decks respond well to pressure washing at 3,000-3,500 PSI with a surface cleaner attachment for even results.
Concrete pool decks often develop a specific type of discoloration: a dark ring around the pool edge where splash water keeps the surface perpetually damp. This area grows algae faster than the rest of the deck and needs extra attention during cleaning.
Increasingly popular since the 2000s, concrete paver pool decks offer more design flexibility and easier repair than poured concrete. However, they have joints filled with sand — usually polymeric sand — that requires maintenance. Cleaning paver pool decks requires careful technique to avoid displacing joint sand.
Our paver wash, sand, and seal service is specifically designed for paver pool decks. We clean the surface, re-sand the joints with polymeric sand, and apply a penetrating sealer that protects against chlorine, sunscreen, and UV degradation.
A natural limestone used heavily in pool decks installed since 2010. Travertine is beautiful, stays cool underfoot (critical for Long Island summers), and has a naturally textured surface that provides good traction. However, it's more porous than concrete and requires lower pressure (under 2,000 PSI) and pH-neutral cleaning solutions. Acidic cleaners — including common household cleaners — can etch and permanently damage travertine.
Popular in higher-end Long Island installations, especially in communities like Cold Spring Harbor, Garden City, and the North Shore. Bluestone is durable but develops a patina over time that some homeowners want to preserve and others want removed. Cleaning approach depends on the desired outcome.
Less common for pool decks but found in older Long Island homes. Brick is porous and can harbor deep mold growth. It cleans well with moderate pressure (2,500-3,000 PSI) but care must be taken around deteriorating mortar joints.
The ideal timing for Long Island pool deck cleaning is 2-3 weeks before you plan to open the pool. For most homeowners, that means early-to-mid April. Here's why:
Here's what a professional pool deck cleaning looks like:
Typical pricing for 2026:
Most homeowners combine pool deck cleaning with other spring services — house washing, driveway cleaning, and fence cleaning — for package pricing that saves $100-$200 versus separate visits.
The most common issue. Forms wherever moisture sits — under furniture, in low spots, around the pool edge. Responds well to soft wash solution or pressure washing with an algaecide pre-treatment. If left for multiple seasons, algae can penetrate deep enough to stain permanently.
Usually from metal patio furniture, rebar bleed-through in older concrete, or well water. Rust requires a specialized oxalic acid treatment — standard pressure washing alone won't remove it. We use targeted rust removers that dissolve the iron oxide without damaging the underlying surface.
Brown or reddish-brown stains from decomposing leaves, especially oak leaves. These set quickly and resist standard cleaning. A combination of pressure and an alkaline cleaning solution usually removes them, but deep-set stains from multiple seasons may lighten but not fully disappear.
White crusty buildup from pool splash-out and sprinkler water. Common around the pool edge. Acidic cleaners dissolve calcium deposits effectively, but care must be taken with natural stone surfaces that can be etched by acid.
Greasy spots where pool chairs sat all summer. These are organic oil stains that respond well to degreaser pre-treatment followed by pressure washing.
Cleaning is step one. Protecting the surface extends the time between cleanings and prevents premature wear:
Pool opening season on Long Island is right around the corner. Don't wait until Memorial Day weekend — schedule your pool deck cleaning now while scheduling is wide open. Best Power Wash LI serves every community across Nassau and Suffolk County, from Massapequa to Smithtown to Bay Shore. Free estimates, veteran-owned, fully insured.
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