Box bay window work - who do I contact

alcachofa

tl;dr: we want to replace the windows and roof of a box bay window but I don't know if I need to be talking to a builder, roofer, glazer, etc or in what order.

the story - we have a pretty old box bay window on the front of the house, not part of the original structure but added on several owners ago. The single-glazed wooden framed windows are pretty knackered and the flat roof is very tired too. As seems to be the way with these structures, the corner post between two windows is part of the support of the roof.

We want to replace it, all but the bricks (which seem fine). Given the windows support the roof, I'm stuggling to work out who I actually talk to for quotes. A glazer would need the roof taking off first, a roofer would need the windows doing first. Is it a builder? Or do I find someone who actually installs them from scratch and see if they can do it?

Any pointers on who best to be asking, much appreciated - not had to think about this sort of thing before.

WIAWSNB

Are you sure the opening in the wall is otherwise unsupported? No lintel crosses it?
If there is a lintel, then a joiner would likely be a suitable trade person. If there isn't, then I guess a general builder.
Photo?

Bigphil1474

Start with a decent general builder if you know one. They will probably know people in the trades who can help them. 

alcachofa

Hmm. these kind of questions are exactly what I needed.

I think there possbly is a lintel, between the gutter and the window but it's not terribly clear. And the outside corner post seems pretty seamlessly joined to windows.

It's order of the work I'm puzzled by as much as anyhing - fitting a new roof over brand new windows just seems like asking for trouble, but changing the windows after the roof seems tricky.

Joiner / builder sounds like a good place to start