Plastic Loft Doors, 1201 Underfloor Vents, 1201AB Plastic Airbricks and Plastic Cavity Trays – 7.5%IRD’s – 5.0%Cavity Closers & Cavity Stop Socks – Variable % (Please contact your local branch for pricing) Date: 01/01/2023 Increase Amount: 5 -7.5% All Price Increases