Expert Deck Cleaning That Protects and Restores
Serving Willis & Surrounding Areas
Why Professional Deck Cleaning Matters
Extend Lifespan, Safety, and Curb Appeal
A clean deck is safer, lasts longer, and looks better. Professional cleaning removes slippery algae, mold, pollen, and embedded grime that degrade finishes and wood fibers, reducing premature rot and splintering while restoring warm, even color across boards, rails, and steps.
DIY pressure that is too strong can etch, fur, or streak boards; the wrong chemicals can bleach surfaces, corrode fasteners, and harm plants. Trained technicians use precise low pressure, pH-balanced detergents, controlled dwell times, and thorough rinsing to preserve the surface and protect landscaping.
Tailored Methods for Wood, Composite, and PVC
Every project starts with an inspection of materials and condition-softwood, hardwood, or composite-plus spot testing to choose the safest method. The team at Sigma Pressure Washing Services moves furnishings, masks sensitive areas, and applies biodegradable detergents that lift organic growth and soils before gentle agitation where needed.
Rinsing is performed in the direction of the grain using wide-angle tips and low PSI suitable for the substrate. For wood, a brightener/neutralizer such as oxalic or citric acid restores natural tone, balances pH after cleaning, and prepares the surface for staining or sealing with optimal adhesion.
Remove Algae, Mold, Rust, Tannin, and Weathering
Organic staining is treated with oxygenated cleaners or carefully diluted sodium hypochlorite paired with surfactants. This combination breaks down biofilm, kills spores, and releases embedded contaminants so they rinse away cleanly without raising the grain or leaving splotchy results.
Discolorations like tannin and leaf stains, rust marks from furniture, grease near grills, and composite black spotting are addressed with targeted chemistries: oxalic for rust and tannins, alkaline degreasers for oils, and specialty agents for composites-all applied following manufacturer-safe guidelines.
Pressure is matched to the material: typically 500-800 PSI for softwoods and up to 800-1200 PSI for dense hardwoods, with wide fan tips held 8-12 inches from the surface and strokes that follow the grain. Careful technique avoids lap lines, feathering each pass for a uniform, like-new finish.


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Service Plans, Pricing, and What You Can Expect
Clear Communication From Estimate to Aftercare
Scheduling is simple-most cleanings are completed the same day with minimal disruption. In Willis, shade and humidity can accelerate algae growth, so we help you pick timing that maximizes drying and delivers the longest-lasting results.
Pricing is transparent and based on square footage, material, condition, access, and stain severity; most decks fall within common per-square-foot ranges, with bundled railings and stairs available. We prioritize efficient routes in Willis to offer prompt arrival windows and clear communication.
For maintenance, many clients opt for annual or semiannual cleanings depending on shade, tree cover, and use. Before our visit, please clear the deck and close nearby windows; after cleaning, allow full drying before moving furniture. We also provide care tips tailored to Willis weather patterns.
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