I am the director of D5 Building Group. We started using Stormtech last year to install all aspects of roof plumbing and also to do some of the external metal cladding. Stormtech has a very simple approach and that is the "job comes first". If anyone tried to build something in their life they would understand that things do not run to plans. That is when good trades come in to try and help resolve the underlying issues. Stormtech is very professional outfit that can find quick resolutions and implement them quickly. We, at D5 Building Group would highly recommend you use Stormtech for any roof plumbing or metal cladding jobs.