3 beams were like this - they have had new ends, a technique i believe is called scarfing

  these new ends were also rotten, so they had to be replaced...

firstly, jack up the floor above on acro-props

'cut' one end off each beam - i say 'cut' as they were so rotten i did this with a crow-bar.

all three removed

this was the lintle holding the wall up above this window - perhaps the cause of the rot .?

  it had to go too, so...

more acro-props to hold the wall up.

this is the new lintle being prepared with the matching cut-outs for the beams

and installed - not a great picture i'm afraid.