Replace a brick wall with a glass wall and sliding door


I'm looking for...

Hi All,  I want to take down the wall between my living room and bedroom and put in an opaque glass wall with sliding door. Anyone know where I can source it and have the work done ? I live in London. Its also for a 3rd floor flat. Ive seen it done in a new build block of flats in Manchester and would love to have it as I only have small windows and Im north and north west facing so trying to get more light in. Thank you for reading and any help or advice.