Slating Traditional / Period Properties. Tiling New Build / Modern Properties. General refurbishment / Maintenance of all Properties in the Private and Commerical Sectors. Approved Local Authority Contractor for Grant Works. Traditional Bitumen Based Built Up Felt Roofing. Single Ply Membrane Roofing on New Build Properties and the refurbishment and repair of existing Flat Roof Systems. Leadwork. Traditional Rainwater Cast Iron Gutters / Downpipes. PVC Rainwater Gutters / Downpipes. Zinc Valley and Zinc Ridges.