Homebuilding and Renovating, in association with Folding Doors 2U, detail the process of building a single storey extension. With Master Builder Andy Stevens we follow the build from beginning to completion, outlining all the major stages and techniques involved. This is Part 7 - Removing the Original Walls; removing a regular double-glazed window unit and demolishing the brickwork. www.homebuilding.co.uk www.foldingdoors2u.co.uk - Bifolds with the wow factor