Apollo Screeding - Liquid Screed Experts. We have been working with flowing screeds for over 17 years. Flowing screeds, flowing concrete, and leveling chemicals are our specialties. We provide comprehensive preparation, which includes DPM and expansions edge insulation, a vapour barrier, and sound proofing. We are situated in Nottinghamshire, however we provide nationwide service. Our first priority is customer happiness. In just 14 days, a quick-drying screed will be ready for floor covering.