Active job

Replacement windows - Double glazed

I have two bedrooms that I would like to replace the windows in, they are currently single glazed wooden framed, I'd like to replace them with double glazed with aluminium frames. Small room: 1520mm wide by 1290mm tall (measured from inside exisiting window frame). Relatively inaccessible from the outside (pictured). Double room: 2 windows both measuring 1980mm wide and 1290 high.