Mongeddavid
pfm Member
Depends upon what its taking above. If the Right hand side is an extension, so flat roof ,floor from the left hand side the external wall above and main roof loadings. Putting in a single beam over a large span will require something substantial. It would also likley requre steel goal posts and possibly underpinning / bases either end as the walls are unlikley to be able to spread the load sufficiently on their own. One possibility is to put a beam off the wall with the window and onto either a loadbearing wall to the left hand side if theree is one or onto a post hidden within a wall onto a concrete pad picking up the beam where the post currently sits. Caveats with that are the connections to the existing beams which is likley split over the top plate of the current column and would need to be reconnected not too difficult. The lintel over the window would also likley need replacing on the insde assuming a cavity wall with a small steel section as steel or concrtete lintels are generally not suitable for large point loads.