This week Dom and Melinda come to the aid of a couple in north-west London, who need to complete a loft conversion and a downstairs extension to give them the space to move their sick grandfather into the family home. The cowboy builder featured in this episode is called John Guerin. The limited companies he trades as, or has formerly traded as, include: Bluewood Constructions Ltd Greyfox Project Management Ltd St Malory Projects Ltd Wynchwood Design & Development Ltd Blue Ferne Construction Ltd Merlyn Refurbishment Litd De Guerin Contruction & Design Ltd