Hello, looking for quotes for a loft conversion - 1 bedroom and En suite with Dorma in my 1950s home, which was once a maisonette. In the 80s the top house was removed leaving my 2 storey home (previously 4 storeys) We have a concrete block and beam floor within our loft and would like any builders to provide advice on how we can convert this. there are no trusses and there are steal beams supporting the roof.