the market for cavity insulation companiesas as all but dryed up,as all the homes with a cavity have been done, so they are having to go into ewi,they can train as many lads up as they want in a tiny booth in a inside warehouse doing a square metre of each,but theres no way they will go on site and produce the required standard or speed to get the job done.so get on site show them your good at your job and not just a bullshitter,tell them the rates you expect to get for your good standard,quickness and expereance and i,am sure once you can do this they will not want to let you go,after all cavity wall and ewi are totally different so all these firms are learning the trade and lets face it,its these companys who are going to be getting the work.