Call us on 020 8998 1616Or email us at jacconstruction@gmail.com Roof Steel Frame Loft conversion are a major part of extension works to existing buildings. +Enlarge image Transportation We are often required to use specialist HI- AB to offload steelwork. +Enlarge image Structural Alterations We specialise in forming structural openings in existing buildings. We will install temporary works, carry out controlled demolition, fabricate and install structural steel work and make good the existing structure once all the temporary works have been removed. +Enlarge image