Pilings are the structural foundation of your dock, and most of their surface area sits underwater where fouling accumulates fastest. Cleaning them properly requires getting below the waterline, which is why this is almost always a diver-operated job.
Barnacle King cleans pilings from the waterline down to the substrate, addressing both the visible growth and the hidden buildup that causes the most structural damage.
The Process
A diver works around each piling individually, starting at the waterline and moving down to the mudline. The tools used depend on the piling material. Wood pilings get non-abrasive treatment to avoid gouging the surface or tearing into softened grain.
Concrete pilings can handle slightly more aggressive cleaning but still require care around cracks and joints where growth has taken root. Metal pilings need attention to coated surfaces so the protective layer stays intact.
The diver scrapes or brushes away barnacles, oysters, and tubeworms, then clears the softer algae and biofilm underneath.
For pilings with heavy calcified growth, cavitation cleaning removes the fouling without the mechanical force that risks chipping concrete or splintering wood. Every cleaning includes a visual inspection of the piling’s condition, since a diver’s regular eyes on the structure catches deterioration early.
What Makes Pilings Different From Other Structures
Pilings carry load. They support your dock, your lift, and everything on top of them. That makes their maintenance more consequential than cleaning a flat dock surface or a seawall face.
A weakened piling transfers stress to adjacent pilings, which can compromise the entire dock system. The Florida Department of Environmental Protection includes piling condition in its guidance on dock maintenance, recognizing that structural integrity starts below the waterline.
Marine growth on pilings also sits in constant contact with the material, trapping moisture and salt 24 hours a day. That continuous exposure is what drives rot in wood, pitting in concrete, and corrosion in metal far faster than normal submersion alone. Cleaning removes that trapped layer and lets the piling material breathe between service visits.
What Property Owners Can Do
Above-water portions of pilings can be pressure washed by the property owner, and that’s worth doing between professional visits to manage algae and surface staining. But the submerged sections require dive access. There’s no safe or effective way to clean a piling below the waterline from the dock surface.
The most practical approach is to bundle piling cleaning with your regular dock cleaning and seawall cleaning so the diver addresses everything in one visit. If your pilings haven’t been cleaned recently, get in touch to schedule a cleaning and inspection before hidden damage has a chance to progress.