What can we say about Kelvin, he is one of the hardest workers we have ever come across, to make good on the re felting and roof of our 13x11 Shed. If you want someone who gets on with the work and is meticulous in doing a great job then this is the chap for you. Would use again without a shadow of a doubt. I worked with many plumbers, joiners and electricians before I retired and I wouldn't hesitate to have had Kelvin on my team. Thanks Kelvin. Davy & Susan