Screwfix Direct is the UK’s largest direct and online supplier of tools and hardware products catering for the trade and the serious DIY enthusiast.Recognised as being “where the trade buys” and promising a fast, reliable service, Screwfix is the UK’s leading multi-channel supplier of thous...
now i dont know if that means if there something wrong with ur walls that needs fixing or if for example live in an area that make the wall prone to water penetration, for example i know there area in the uk u shouldnt insulate the cavity due to water penetration as it will travel ...