Deck Cleaning
What Is Professional Deck Cleaning?
Minnesota's harsh winters and humid summers are brutal on outdoor decks. Wood decks grey out, grow mold and mildew, and become slippery with algae. Composite decks develop black mold streaks and organic buildup in the grooves. Vinyl surfaces collect grime and lose their bright appearance. Left untreated, what starts as cosmetic deterioration becomes structural — wood rots, composite degrades, and your deck becomes a safety concern.
Professional deck cleaning restores the original color and texture of your deck, eliminates the mold and algae that makes it slippery and unsightly, and prepares the surface for staining or sealing if desired. We adjust our method — pressure level, solution concentration, and technique — based on your specific deck material to deliver perfect results without causing any damage.
🪵 A professional deck cleaning before staining is not optional — it's required. Stain won't penetrate or adhere properly to a dirty or moldy surface. Cleaning first is always step one.
Extreme Difference
Real Results
Central Minnesota
The proof is in the clean. Real jobs, real results. From driveways to rooftops, All across Central Minnesota.
Stewart, MN - Concrete Driveway
Driveway Claning
Annadale, MN - Gutter Cleaning
Gutter Cleaning
Victoria, MN - Wood Deck
Deck Washing
Know the Difference
Professional Cleaning vs. DIY Power Washing for Decks
Using the wrong pressure or technique on a deck causes damage that costs more to fix than the cleaning would have saved.
What We Do
Professional Deck Cleaning
Pressure adjusted per deck material
Cleaning solution breaks down mold at the root
Wood grain opened, not raised or splintered
Composite grooves cleaned without damage
Even, streak-free results
Ready for staining same day after drying
Common DIY Mistakes
DIY Power Washing
Too much pressure splits and fuzzes wood grain
No pre-treatment means mold roots remain
Uneven cleaning leaves visible wand marks
Composite warranty can be voided by high pressure
Streaky results require immediate re-staining
Takes most of a weekend to do properly
FAQs
Deck Washing Frequently Asked Questions
Everything homeowners ask before booking professional deck cleaning in Central Minnesota.
Yes — and this is one of the most important questions to ask any deck cleaner. Most composite deck warranties (Trex, TimberTech, Fiberon, etc.) specify that only low-pressure soft washing with approved cleaning solutions should be used. High-pressure washing can damage the composite surface and void your warranty. We are familiar with the requirements of major composite deck brands and clean accordingly to keep your warranty intact.
In Minnesota's climate, most decks benefit from a professional cleaning every 1–2 years. The freeze-thaw cycles, humid summers, and leaf debris from fall all accelerate mold, mildew, and grime buildup on deck surfaces. Wood decks should also be stained or sealed every 2–3 years — always starting with a professional clean. Composite decks typically need cleaning more often but less intensive treatment than wood.
Always before — without exception. Applying stain to a dirty or moldy deck surface is the most common and costly deck maintenance mistake homeowners make. Stain won't penetrate properly through grime, mold, or old flaking stain. It will peel within a season and look terrible. Professional cleaning opens the wood grain, removes all biological growth, and creates the ideal surface for stain penetration and long-lasting adhesion. Clean first, wait 24–48 hours for the wood to dry, then stain.
Yes — and most homeowners are genuinely shocked by the transformation. The grey color in weathered wood is largely caused by a combination of UV oxidation and the grey spores of surface mold and mildew. Professional cleaning removes the biological growth and much of the grey oxidation, revealing the natural wood color underneath. A follow-up application of a wood brightener can further restore color. For severely weathered wood, cleaning combined with staining produces a like-new result.
Yes — a complete deck cleaning includes the decking boards, railings (wood, composite, or metal), balusters, stairs, and any attached pergola or overhead structure. We quote the full deck assembly, not just the floor boards. Railings and stairs often accumulate the most visible grime and mildew and make up a significant part of the visual impact of the cleaning.
Deck cleaning pricing is based on the total square footage of your deck including stairs and railings. Most residential decks in Central Minnesota range from $150–$350 for a thorough professional clean. Larger decks, multi-level structures, or those requiring stain prep treatment may be priced higher. We provide a free, itemized quote with no obligation — and we're happy to bundle deck cleaning with other services like house washing or driveway cleaning for package savings.
You Might Also Need
Related Residential Services
Our Process
How Our Deck Cleaning Process Works
Material-specific cleaning that protects your deck while delivering dramatic results.
1
Free Quote
We assess your deck material, size, and condition and provide a clear price — including whether stain prep or additional treatment is recommended.
2
Schedule
Pick a day that works. Clear furniture from the deck beforehand but you don't need to be home for the cleaning itself.
3
Material-Safe Clean
We apply the right cleaning solution for your deck material — wood, composite, or vinyl — at the correct pressure level to remove all mold, algae, and grime without raising wood grain, damaging composite, or streaking vinyl.
4
You Enjoy
We complete a final walkthrough to ensure a beautiful, material-safe finish. Enjoy a deck that's clean, safe, and ready to use or perfectly prepped for staining if that's your next step.
Why It Matters
Benefits of Professional Deck Cleaning
A clean deck looks better, lasts longer, and is safer for your family. Here's why professional cleaning beats DIY every time.
Restore Original Color
Grey, weathered wood and discolored composite can be dramatically restored to their original appearance. Professional cleaning removes the biological growth and oxidation that causes fading and graying.
Eliminate Slip Hazards
Algae and mildew growth on deck boards is dangerously slippery when wet — especially in a Minnesota spring. Cleaning removes the biological growth entirely and restores safe traction to your deck surface.
Extend Deck Life
Mold and mildew on wood decks break down the wood fibers over time leading to rot and structural failure. Regular cleaning removes the moisture-holding organic matter that accelerates decay.
Prep for Staining & Sealing
Whether you're DIYing or hiring a painter, your deck must be professionally cleaned before any stain or sealer is applied. We open the wood grain for maximum penetration and adhesion.
Avoid Costly Replacement
A full deck replacement costs $15,000–$40,000. Regular cleaning and sealing every 2–3 years keeps your deck structurally sound for decades and prevents the deterioration that leads to replacement.
Boost Outdoor Living Value
A clean, restored deck extends your usable living space. Clean decks get used more — and a beautiful outdoor space adds measurable value to your home when it's time to sell.