Hi all first of all im a newby please be patient! im thinking of getting an extension done so thought i would see what other people have done/been through ect. As im new to all this i thought it would be a good idea to get experience from people who have done the leap first hand ... Im after changing this (see first image) To this (second image) please excuse the stairs they return on a half landing. Any advice on price, materials etc more than welcome