Roof Assured by Sika is part of Sika AG a Swiss multinational company whose roofing membranes are used on buildings and homes ... around the world. All products in our Sika range are versatile, convenient to install and give you a durable, risk free and low maintenance waterproofing roofing solution. We are proud to be part of the large Sika Group and our Swiss heritage is particularly important to us. However, we never lose sight of the fact that Roof Assured by Sika is here for UK homeowners. While our customers benefit from our global brand credentials, we make sure they are delivered in a personal way by our approved installers. We hope we can make our flat roof solutions exciting for you and create a truly outstanding difference to your home. The Roof Assured by Sika Head Office is based in Welwyn Garden City and the Roof Assured approved installer network operates across the UK via a distributor network. read more