Composite Deck Cleaning Highland Park, IL

Composite deck cleaning for Highland Park homes

Composite deck cleaning in Highland Park starts with knowing the housing: North Shore homes on ravine and lakefront lots with old-growth trees. That means deep-shade decks on ravine lots that stay damp, which changes the prep more than the stain.

With Lake Michigan close by, decks and fences here hold moisture longer in the mornings. We schedule the wash early in the week so there is time to dry before stain goes on.

Composite decks are the ones that get damaged most often by general pressure washing, because the surface looks tough. It is not. Capped composite has a thin outer layer and a narrow-tip wand will strip it in stripes. We use a soft-wash approach: cleaner, dwell, gentle agitation, low-pressure rinse. If your composite deck has black spots that will not come off with a hose, that is mildew in the surface and it needs the right cleaner, not more pressure.

How the job goes in Highland Park

1. Identify the productCapped, uncapped or PVC, and which brand. It decides the cleaner and the pressure.
2. Clear and protectFurniture, rugs and planters come off. Rugs left on composite are the most common cause of shadow marks.
3. Apply cleanerA composite-safe cleaner with a sodium percarbonate base, or an oxalic-based one for tannin and rust stains.
4. Agitate and rinseSoft brush on problem spots, then a low-pressure fan rinse under 1,500 PSI, wand kept well off the surface.

Other work we do in Highland Park

Homeowners here also ask us about Deck cleaning in Highland Park, Fence staining in Highland Park and Deck restoration in Highland Park. See everything on the Highland Park service area page, or read the full composite deck cleaning guide. We also cover nearby Highwood, Riverwoods and Mettawa.