Illustrating the new Bi-Fold doors and extension (built by our sister company Contemporary Conversions Ltd). Patio Plus System allows us to bring the patio surface to the same height as the inside flooring without breaching the damp proof course (DPC). The upper level - illustrates the ability to seamlessly level the patio floor to the house floor. The completely level metal base of our box section Patio Plus System makes laying slabs or tiles a speedy process and there's no need for grouting providing a clean contemporary look.