John Creber - Roofer & Inventor!

John Creber, the inventor of the Roofer Doofer joins Danny Madden to discuss his experiences working in the trade and also how he came to invent the Roofer Doofer. John talks about an unusual and amazing find on a job, using modern technology when quoting for work, his experiences on the tools and also explains how to invent/create a product