Deck Repairs & Cleaning in Chicago, IL

A two-level setup in Chicago's north side, this property ran a roughly 400-square-foot garage rooftop deck connected by a synthetic stair system down to a 160-square-foot front deck — 560 square feet of composite decking in total. The surface had taken on the kind of buildup that accumulates slowly and then all at once: environmental staining, organic growth, and embedded grime worked into the grooves and board edges where foot traffic and city air do their worst. Composite holds up well against the elements, but it collects what wood sheds, and this one was overdue for a proper clean.

Because synthetic decking responds differently than pressure-treated pine or cedar, the process called for chemistry and pressure dialed specifically to composite — lower psi, different cleaning agents, no risk of raising the material or opening the grain the way a wood-oriented approach would. We worked through the surface dirt and organic growth systematically, detailing the accessible grooves, board edges, and transition points where buildup tends to sit heaviest. The stair treads and landings connecting the two levels got the same attention. A low-pressure rinse finished each section clean. No finish was applied — synthetic decking doesn't take a coating, so the job was purely about getting the surface back to what it's supposed to look like. Metal railings, the pergola, and privacy walls were outside the scope of this service. Invoice sent same day.