The secret to pressure washing for composite decking is using the right method, not the most pressure. In your area, we match the cleaner and pressure to the surface so it comes out clean without damage. On composite decking, the method we use is low-pressure wash.
How we clean it
Cleaning solution: A composite deck cleaner recommended by the decking maker.
Cleaning composite decking safely
Composite decking doesn't need staining, but it does grow mold and mildew, especially in shade and between boards. Most manufacturers recommend gentle cleaning, and some limit the pressure that can be used without affecting the warranty.
Avoid: High pressure and narrow tips, which can scar the surface and may void the warranty.
How often: Every year, more often in shade.
Is it time for pressure washing for composite decking?
- Driveway or walkways look dark, gray or streaky
- Green or black growth in shaded areas and along edges
- Slippery surfaces after rain
- Oil, rust or tire marks you can't scrub out
- You're getting ready to sell, seal or paint
Why it gets dirty
- Dirt and pollen that settle into the pores of concrete
- Mold, mildew and algae in damp, shaded spots
- Oil and fluid drips from vehicles
- Rust from sprinklers, furniture and fertilizer
- Tire marks and general foot traffic
Safe steps for homeowners
- Sweep off leaves and loose debris so they don't stain
- Blot fresh oil drips with cat litter or an absorbent right away
- Point sprinklers away from walls and walkways to cut down on rust and hard-water stains
- Rinse pollen off with a garden hose during heavy pollen season
Not sure what you're looking at? The free stain identifier and safe pressure guide explain each stain and surface.
What can go wrong with DIY pressure washing
- Etched lines and 'zebra stripes' from holding a narrow tip too close
- Water forced into window frames, door sills and siding laps
- Damaged plants and lawns from chemical runoff
- Injuries: a zero-degree tip can cut skin, and wet surfaces are slippery
Our process for pressure washing for composite decking
- Walk the property and note surfaces, stains and anything fragile
- Protect plants, outlets, lights and doors, and move small items
- Pre-treat organic growth and degrease oil spots
- Clean with the right pressure and a surface cleaner for even results
- Rinse, post-treat to slow regrowth, and walk the job with you
How much does pressure washing for composite decking cost?
What moves the price:
- Size: square footage of siding, roof or flatwork
- Condition: heavy growth, old stains and peeling finishes take longer
- Access: number of stories, roof pitch, slopes and how close we can park
- Add-ons: sealing, gutter brightening and other services done in the same trip
These are typical U.S. ranges, not a quote. You get an exact price before any work starts. For a quick estimate, try the pressure washing cost calculator.
Other services for composite decking
Local pressure washing for composite decking for your area
We provide pressure washing for composite decking across all 50 states, Washington, DC and Puerto Rico. Pick your state to see local details:
- Pressure Washing for Composite Decking in Alabama
- Pressure Washing for Composite Decking in Alaska
- Pressure Washing for Composite Decking in Arizona
- Pressure Washing for Composite Decking in Arkansas
- Pressure Washing for Composite Decking in California
- Pressure Washing for Composite Decking in Colorado
- Pressure Washing for Composite Decking in Connecticut
- Pressure Washing for Composite Decking in Delaware
- Pressure Washing for Composite Decking in District of Columbia
- Pressure Washing for Composite Decking in Florida
- Pressure Washing for Composite Decking in Georgia
- Pressure Washing for Composite Decking in Hawaii
- Pressure Washing for Composite Decking in Idaho
- Pressure Washing for Composite Decking in Illinois
- Pressure Washing for Composite Decking in Indiana
- Pressure Washing for Composite Decking in Iowa
- Pressure Washing for Composite Decking in Kansas
- Pressure Washing for Composite Decking in Kentucky
- Pressure Washing for Composite Decking in Louisiana
- Pressure Washing for Composite Decking in Maine
- Pressure Washing for Composite Decking in Maryland
- Pressure Washing for Composite Decking in Massachusetts
- Pressure Washing for Composite Decking in Michigan
- Pressure Washing for Composite Decking in Minnesota
- Pressure Washing for Composite Decking in Mississippi
- Pressure Washing for Composite Decking in Missouri
- Pressure Washing for Composite Decking in Montana
- Pressure Washing for Composite Decking in Nebraska
- Pressure Washing for Composite Decking in Nevada
- Pressure Washing for Composite Decking in New Hampshire
- Pressure Washing for Composite Decking in New Jersey
- Pressure Washing for Composite Decking in New Mexico
- Pressure Washing for Composite Decking in New York
- Pressure Washing for Composite Decking in North Carolina
- Pressure Washing for Composite Decking in North Dakota
- Pressure Washing for Composite Decking in Ohio
- Pressure Washing for Composite Decking in Oklahoma
- Pressure Washing for Composite Decking in Oregon
- Pressure Washing for Composite Decking in Pennsylvania
- Pressure Washing for Composite Decking in Puerto Rico
- Pressure Washing for Composite Decking in Rhode Island
- Pressure Washing for Composite Decking in South Carolina
- Pressure Washing for Composite Decking in South Dakota
- Pressure Washing for Composite Decking in Tennessee
- Pressure Washing for Composite Decking in Texas
- Pressure Washing for Composite Decking in Utah
- Pressure Washing for Composite Decking in Vermont
- Pressure Washing for Composite Decking in Virginia
- Pressure Washing for Composite Decking in Washington
- Pressure Washing for Composite Decking in West Virginia
- Pressure Washing for Composite Decking in Wisconsin
- Pressure Washing for Composite Decking in Wyoming
Pressure Washing for Composite Decking: frequently asked questions
How much does pressure washing for composite decking cost?
Pressure Washing for Composite Decking typically costs $150-$600 for a typical home's driveway, walkways and patio, and usually takes 1-4 hours. The exact price depends on the size and condition, and you get it before any work starts. Call (555) 010-0000 for a free quote.
Do you use high pressure for pressure washing for composite decking?
For composite decking: low pressure, often under 1,500 PSI with a wide fan tip, held well back; check your decking brand's care guide. What we avoid: high pressure and narrow tips, which can scar the surface and may void the warranty. The cleaning solution does most of the work, followed by a gentle rinse.
Is pressure washing for composite decking safe for my plants and pets?
We pre-wet plants and lawns, keep cleaning solutions diluted to what the surface needs, and rinse landscaping again when we finish. Keep pets and children inside until surfaces are rinsed and dry.
How often should I schedule pressure washing for composite decking?
Every year, more often in shade. Shade, nearby trees, humidity and heavy traffic mean more frequent cleaning; sunny, dry spots can go longer. Our free cleaning frequency tool gives a recommendation for your climate.
What if it rains on the day?
Light rain doesn't stop most washing, but heavy rain, high wind, lightning and freezing temperatures do. If the weather isn't right, we reschedule at no charge. Our work is backed by a satisfaction guarantee.