Do I need a permit for dock cleaning & maintenance in St. Johns County?

Most likely, yes. St. Johns County typically requires a permit for this type of work, and depending on the waterway, Florida DEP and/or Army Corps of Engineers review may apply too. The local contractor you're matched with can confirm exactly what's needed and handle submission for dock cleaning & maintenance projects in St. Augustine.

How often should a dock be cleaned?

Most Florida docks benefit from a professional cleaning once or twice a year — more often in areas with heavy algae growth or constant shade, which slows drying and encourages buildup.

Can pressure washing damage my dock?

At the wrong pressure or with the wrong technique, yes — especially on softwood or older composite. We match pressure and method to your specific decking material.

Bridge of Lions and marina in St. Augustine, Florida — dock and seawall service area

St. Augustine, FL · St. Johns County

Dock Cleaning & Maintenance in St. Augustine, FL

As the nation's oldest continuously occupied European-founded city, St. Augustine has some of the First Coast's oldest working waterfront — from historic downtown seawalls near the Bridge of Lions to residential docks on Davis Shores and the San Sebastian River — and that age means dock and seawall rebuilds here often uncover decades-old construction that needs to be brought up to current code. For property owners along Matanzas River, San Sebastian River, Intracoastal Waterway, dock cleaning & maintenance is one of the most common marine construction needs we handle in St. Augustine.

Dock Cleaning & Maintenance on Matanzas River

The Matanzas River's strong tidal exchange near the inlet and the San Sebastian's more sheltered, industrial-adjacent waters call for different dock strategies depending on which side of the peninsula a property sits. That matters directly for dock cleaning & maintenance: Saltwater algae, mold, and barnacles don't just look bad — left alone, they hold moisture against wood and hardware and quietly accelerate the exact deterioration that leads to a repair bill. Regular cleaning is the cheapest thing you can do to extend a dock's life.

Common Local Issues

Historic district permitting rules, aging bulkheads original to older homes, and strong Matanzas Inlet tidal currents are the recurring themes in St. Augustine dock and seawall work. Near Bridge of Lions and throughout Davis Shores, Vilano Beach, San Sebastian Harbor area, these conditions shape how we approach every dock cleaning & maintenance project.

About This Service

Pressure washing, wood treatment, and marine growth removal to protect your dock investment.

Typical Cost in St. Augustine

$0.50 – $1.25 per sq ft, plus $175–$400 for heavier debris/marine growth removal

Signs to Watch For

Signs You Need Dock Cleaning & Maintenance

Algae, mold, or mildew staining the decking
Barnacles or marine growth built up on pilings and lower framing
Decking that's slippery when wet, even without visible rot
Faded, graying wood that hasn't been sealed in a few years
Debris accumulation making the dock feel neglected or unsafe

Our Process

How It Works

1
Inspection
We check the deck, pilings, and hardware so cleaning doesn't mask a problem that actually needs repair first.
2
Pressure washing
We remove algae, mold, and barnacle buildup at a pressure safe for wood or composite decking.
3
Debris & marine growth removal
We clear heavier buildup from pilings and framing below the deckline.
4
Wood treatment & UV sealing
We apply a UV-rated sealant to protect wood from sun and saltwater damage going forward.

Benefits

Why It's Worth Doing Right

Extends the usable life of decking and hardware between repairs
Removes a slip hazard caused by algae and marine growth
Restores appearance and curb appeal for resale or everyday enjoyment
Far cheaper than the repair costs that neglected wood eventually causes

FAQ

Dock Cleaning & Maintenance FAQ — St. Augustine

Dock Cleaning & Maintenance projects in St. Augustine typically fall within $0.50 – $1.25 per sq ft, plus $175–$400 for heavier debris/marine growth removal, the same general range we see across Northeast Florida. Exact pricing depends on dock square footage and site-specific conditions on Matanzas River.

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