Avoid like the plague. This company will eagerly take your money and respond quickly but do little to sort out the problem, in fact they just made it a whole lot worse. They damaged my windows with the heat treatment and hid behind their disclaimer. Nice. They did nothing to diagnose the problem, after 3 visits I still had the same issue. Turned out it wasn't bed bugs but mites coming through the wall. They were totally useless. The technicans didn't know what they were talking about either. They didn't even look around my home to work out the source. I had to ask them to do that. Save your money. You can get rid of most critter's yourself if you do your research. I'm £1200 out of pocket now after commissioning them, big mistake.