Why Every Pool Deck in Florida Needs Algaecide Treatment

psalmisraelcallejo
Jul 23
5 min read

Updated: Jul 28

Florida’s weather may be perfect for lounging by the pool, but it’s also ideal for one of your deck’s worst enemies: algae. If your pool deck is made of brick pavers, you’ve probably seen the signs—dark green stains, slippery patches, or strange discoloration in shaded corners. These aren’t just cosmetic problems—they’re structural and safety concerns.

At Premier Coatings, we’ve seen how fast algae takes over Florida pool decks, especially in high-humidity zones like Wesley Chapel, Port Richey, and Spring Hill. That’s why algaecide treatment is not optional—it’s a critical part of our paver maintenance system.

Here’s what every Florida homeowner needs to know.

The Problem with Algae on Pool Decks

Constant Moisture Means Constant Growth

In Florida, pool decks stay damp longer. Morning dew, regular pool splash, afternoon storms—moisture is always present. Add in heat and shade from screen enclosures or landscaping, and you’ve got the perfect breeding ground for:

Algae – Slimy green patches that stain and spread fast
Organic Growth – Black or brown blotches that can etch the paver surface
Mildew – White or gray spores that feed on organic debris

These growths don’t just look bad—they break down paver integrity by holding moisture and weakening the surface. Worse, they create dangerously slick conditions, especially on smooth or sealed surfaces.

Why Pressure Washing Isn’t Enough

Pressure washing gives the illusion of a clean surface—but it only blasts off visible buildup. Spores and root structures remain embedded in the pores and joints. That’s why many homeowners find algae reappearing just weeks after cleaning.

Without professional algaecide treatment, regrowth is guaranteed.

How Our Algaecide Treatment Works

We use a broad-spectrum, professional-grade algaecide formulated for Florida’s toughest conditions. It’s designed to:

Penetrate deep into the surface—reaching spores hiding in joints and pores
Kill growth at the root level—not just surface discoloration
Prevent new growth by neutralizing biofilm and algae colonies

This treatment is safe for pools and landscaped areas once dry, and we apply it precisely to target high-risk zones without harming plants or finishes.

Where Algaecide Makes the Biggest Impact

We target the following zones on your pool deck:

Shaded areas behind screen enclosures or fencing
Low-drainage spots where water lingers
Corners near landscape beds or downspouts
Steps and entry points with high foot traffic

Anywhere moisture sits is a threat. Our treatment is designed to break the cycle of regrowth before it starts.

Our 7-Step Pool Deck Sealing Process (Includes Algaecide)

Every Premier Coatings pool deck sealing service includes:

Deep Cleaning and Pressure Washing - Reduces all surface-level algae, organic growth, grime, and buildup using commercial-grade cleaners.
Algaecide Application - Broad-spectrum treatment sprayed across all surfaces, targeting shaded and damp areas first.
Surface Rinse - Final rinse removes any remaining contaminants and balances pH levels for sealing.
Re-sanding of Joints - We refill joints with our special non-polymeric silica blend to resist erosion and support drainage.
Surface Cleanup - We remove all excess sand and debris for a clean, seal-ready finish.
Final Inspection - Full walkthrough to confirm joint fill, safety, and quality before sealing begins.
Flood Coat Sealing - Heavy-duty flood coat that locks in the algaecide, stabilizes joints, and protects the surface with a matte or wet-look gloss finish.

Learn more about our full paver sealing system.

The Benefits of Algaecide + Sealing

Combining professional algaecide treatment with deep-penetrating paver sealing doesn’t just improve how your pool deck looks—it fundamentally upgrades how it performs. This dual approach is what sets apart a short-term cleaning job from a long-term paver protection system.

Here’s what you gain when you seal your pool deck after treating it with algaecide:

✅ Longer-Lasting Clean Surfaces with Reduced Regrowth

Algaecide doesn’t just kill surface stains—it targets the microscopic spores buried deep in porous brick and in the joints between them. Once those spores are neutralized and sealed beneath a water-repellent barrier, regrowth slows dramatically. That means your pavers stay clean longer, with fewer outbreaks of green, black, or white discoloration—even in Florida’s most humid months.

✅ Fewer Maintenance Cycles Throughout the Year

Without algaecide and sealing, most pool decks in Florida need to be pressure washed every 3 to 4 months to stay safe and clean. That adds up in both time and cost. Our treatment + sealing system reduces that frequency significantly—clients often go a full year or more before light maintenance is needed. No more endless scrubbing or bi-monthly re-cleanings.

✅ Slip-Resistant Deck Areas, Especially Near the Waterline

Slippery surfaces are a major safety issue on pool decks. Algae buildup creates a slimy, hazardous layer on brick and stone. When treated and sealed, those surfaces become much more resistant to moisture absorption and spore growth. The result is a noticeably safer walking surface, even in areas where water splashes and lingers—like along the pool edge or shaded corners.

✅ Preserved Color and Surface Finish

Algae, organic growth, and mildew don't just make your pavers slick—they stain them permanently if left untreated. The acids and moisture trapped in organic growth can also dull your surface finish over time. Algaecide stops the biological damage, and sealing locks in the natural tone and texture of your pavers. Whether you prefer a natural matte or wet-look gloss, the seal preserves your chosen aesthetic against sun, water, and grime.

✅ Protection Against Hidden Growth Damage in Shaded Joints

Even when your paver surface looks clean, organic growth often lingers inside joints—especially in shaded, damp areas. Over time, this hidden growth breaks down joint sand, creates voids, and destabilizes pavers. Algaecide treatment penetrates deep into those joints to kill spores before they cause structural issues. Our flood-coat sealer then locks in the sand and prevents future washout.

Lasting Results You Can Count On

Most of our clients throughout coastal and central Florida enjoy 12 to 18 months of algae-free performance following treatment and sealing. That’s not marketing—it’s backed by real-world results. With the right follow-up maintenance (like light rinsing and debris removal), you’ll get a cleaner, safer pool deck with significantly less effort year-round.

Want to make it last even longer? Ask about our routine maintenance plans tailored for Florida pool decks.

Serving Pool Owners Across Florida

We’ve treated hundreds of pool decks in:

Wesley Chapel
Port Richey
Trinity
Spring Hill
Hudson
New Port Richey
Crystal River
Brooksville and surrounding areas

Whether your pool deck is brand new or years overdue for restoration, our algaecide + sealing process can restore and protect your outdoor investment.