I have a customer who has a steel header tank which is starting to go in the corners. However it is built into the roof and there is no way getting it in or out without taking part of the roof off and hiring a crane. I have heard that there are companies who specialise in lining such tanks in situ with fibreglass but I can't find anyone in the Yorkshire area. Has anyone had this done or knows anywhere that has, and does anyone know a contractor? It is a large tank, about 2m x 1.5m x 1m. Another consideration is that it is in a hotel and as such it would have to be done in a very short space of time.