Decking Maintenance Cleaning is required for all exterior building materials.Cleaning your composite deck with a solution of sugar soap and warm water is recommended.Wine, oil, and greasy stains are easily removed.The best outcomes are obtained when removed as soon as possible, For tougher stains, you may call us for tips. Let's Bring Aesthetics Into Your Backyard. Contact Lucky House Group today and receive a free sample. GET FREE SAMPLES