Found Michael @ The Roof Doctor on My Builder, he came and looked at a leaking roof gulley job that same morning (within 1 hr), he explained the problem and the solution very well, quoted and said him and his partner would be able to work on it that same day. They got straight to it, and had cleared the gulley, coated in acrypol and re-cemented entire gulley in about 3 hours. Sent me fantastic pictures, filled me with confidence, very impressed, would recommend and I am planning on using him again tomorrow on different project. Thanks, Tom