Dave arrived on time and identified the issue very quickly to be damp from the air and not rising damp as I had thought. He suggested a positive pressure ventilation system but left it to me to have a think about it before making a decision. As promised, reading material was duly emailed to me less than two hours later. I decided to go ahead with the fitment of a system in my loft, which was carried out to a high standard by Dave's team. They were friendly, professional and left my house tidy, which wasn't an easy task given the weather. In conclusion, I would not hesitate to recommend the company.