A dock that looked great last spring can turn into a slippery, stained mess by fall, and regular hosing rarely makes a dent in the buildup. Algae, mold, and waterline grime embed themselves into decking surfaces in ways that only professional pressure washing can address effectively.
This guide covers what dock cleaning services include, how pressure washing works on different materials, and how to tell when your dock needs professional attention.
Professional dock cleaning restores wood, composite, and aluminum structures by removing algae, mold, mildew, and grime through pressure washing tailored to each material. The process starts with clearing surface debris, then moves to targeted pressure washing and stain treatment, and finishes with a rinse and inspection. Many providers also apply protective sealants afterward to guard against moisture and sun damage.
A complete dock cleaning service typically includes:
Pressure washing outperforms hand scrubbing because the water reaches into textured surfaces, grooves, and gaps between boards that brushes cannot clean effectively. The force strips away layers of buildup in a single pass, which reduces labor time while delivering a more consistent result across the entire dock surface.
Chemical-only treatments can break down organic stains, but they often leave residue behind and take longer to work. Pressure washing combines mechanical force with water to lift and remove contaminants rather than just dissolving them in place.
Not all dock materials respond the same way to pressure washing. Using the wrong settings can splinter wood, etch composite surfaces, or leave aluminum looking worse than before.
Wood docks require lower pressure settings and careful attention to grain direction. Too much pressure gouges the surface or raises splinters that make the decking rough underfoot. After cleaning, wood often benefits from resealing to protect against moisture absorption and UV damage, especially if the dock hasn’t been sealed in several years.
Composite decking is more forgiving than wood, though improper technique can still etch the surface or void manufacturer warranties. Most composite materials clean up well with medium pressure and cleaning solutions designed for synthetic materials. Checking the manufacturer’s care guidelines before cleaning helps avoid warranty issues.
Aluminum naturally resists mold and corrosion better than wood, but it still accumulates grime, waterline stains, and oxidation over time. Higher pressure settings work well on aluminum, and the material dries quickly after cleaning.
Martin Docks specializes in custom aluminum dock systems, so our team understands exactly how aluminum structures respond to professional cleaning and what settings work best for different conditions.
| Material | Pressure Level | Special Considerations |
|---|---|---|
| Wood | Low to medium | Risk of splintering; may benefit from resealing |
| Composite | Medium | Check manufacturer guidelines first |
| Aluminum | Medium to high | Resists corrosion; dries quickly |
Cleaning frequency depends on your dock’s location, usage, and environmental exposure. A dock tucked under heavy tree cover accumulates debris and algae faster than one in full sun. Similarly, docks on lakes with more organic matter in the water tend to show buildup sooner.
Most lakefront property owners find that annual or seasonal cleaning keeps their dock safe and looking its best. Docks with heavy foot traffic or those used for fishing may benefit from more frequent attention.
Factors that affect cleaning frequency:
Responsible dock cleaning means protecting the water you enjoy. Professional services use methods and products designed to minimize environmental impact while still delivering effective results.
Professionals use biodegradable, phosphate-free cleaners approved for use near water bodies. Phosphates promote algae growth in lakes, so avoiding them protects water quality. Biodegradable products break down organic stains without harming fish, aquatic plants, or the broader lake ecosystem.
Techniques like containment tarps and strategic positioning help capture debris and cleaning residue before it enters the lake. Proper disposal means removing waste from the site rather than washing it into the water.
Timing matters for lake wildlife. Cleaning during nesting season can disturb birds that use dock structures for shelter. Professional services familiar with local lakes know when to schedule work to minimize disruption to wildlife.
Knowing when to call for service helps you address problems before they become safety hazards or lead to more expensive repairs.
If walking on your dock feels slick, especially when wet, algae has likely taken hold. Algae creates a real fall risk for anyone using the dock, particularly children and older adults. The slippery film builds up gradually, so you may not notice how bad it has gotten until someone nearly slips.
Common stains come from tannins (brown streaks from leaves), rust from metal hardware, fish blood, and mineral deposits from the water itself. Regular hosing rarely removes these stains because they’ve penetrated the surface rather than sitting on top.
Beyond looking unsightly, mold and mildew can cause respiratory irritation for people spending time on the dock. Over time, mold also contributes to the structural deterioration of wood components by breaking down the fibers.
UV exposure and accumulated grime dull your dock’s appearance gradually. You might not notice the change until you see how the dock looks after a professional cleaning reveals the original color underneath.
Watch for these warning signs:
Cleaning often reveals damage that was hidden under layers of grime. Loose boards, corroded hardware, and structural issues frequently go unnoticed until the surface is clean enough to see them clearly. Bundling cleaning with inspection services catches problems early, before they become more serious or more expensive to fix.
Martin Docks offers dock repairs, modifications, and remodeling alongside cleaning. Addressing everything in one visit saves time compared to scheduling multiple service calls.
A combined inspection typically checks:
Schedule a combined dock cleaning and inspection →
Martin Docks serves lakefront properties across North Georgia and Western North Carolina from locations in Gainesville, GA, and Hiawassee, GA. Our team has cleaned and serviced thousands of docks on the region’s major lakes, which means we understand how local water conditions, tree coverage, and seasonal changes affect dock maintenance.
Contact Martin Docks to schedule dock cleaning at your lake →
With three generations of waterfront craftsmanship and thousands of aluminum docks installed across major regional lakes, Martin Docks brings experience that shows up in every service call. We understand how different lake conditions affect dock maintenance, and we back our cleaning services with the same attention to detail we put into building custom dock systems.
Working with a single provider for cleaning, repairs, and new construction simplifies waterfront maintenance. You’re not coordinating between multiple contractors or explaining your dock’s history to someone new each time.
We serve lakes across Georgia and North Carolina, including:
Lake Lanier, Lake Allatoona, Lake Blue Ridge, Lake Burton, Lake Nottely, Lake Chatuge, Lake Fontana, Lake Allatoona, and private lakes or ponds. Don’t see your lake listed? Martin Docks serves most lakes across the Southeast.
Contact us at (770) 536-0189 or request an estimate.
Our Clients appreciate us for our commitment to delivering top-notch dock systems, boat lifts, boat docks, PWC ports, rip rap, pathway & shoreline steps and waterfront accessories. From the durability of our products to the professionalism of our team, the testimonials highlight the positive experiences of our customers who have chosen Martin Docks for their waterfront needs.
Cost depends on dock size, material, and current condition. Contact Martin Docks for a custom quote based on your specific dock.
Most residential docks can be cleaned in a few hours, though larger docks or those with heavy buildup may take longer.
You don’t need to be there, though access to the dock and any gates or locked areas will need to be arranged beforehand.
You don’t need to be there, though access to the dock and any gates or locked areas will need to be arranged beforehand.
Yes, professionals clean around and under lifts and ports as part of a complete dock cleaning service.
Proper technique preserves most warranties, though checking with your decking manufacturer beforehand is a good idea.
Spring cleaning prepares your dock for boating season, while fall cleaning removes buildup from heavy summer use and sets your dock up for proper dock winterization. Either timing works well, depending on your schedule and how you use the dock.
