I am thinking of removing my lovely kitchen window and putting in an old sliding conservatory door which was on the outside of a conservatory. Should I put in a lintel? It's a one storey building but with a roof and an attic above it.
Thinking about it and wondering how difficult it might be. The kitchen is a single storey extension with a loft above. We are thinking of putting up two screw jacks to support the ceiling and then cutting a hole above the existing window, push a lintel through and gradually twist it - taking one brick out each side at the same time whilst twisting the lintel into place.