Hope this is the right forum to ask this question but can anyone give me a rough price of what I should ecpect to pay tohave an opening made in o/s wall fit lintal etc on a 100 year old house brick built and fit Bi fold doors which I will be supplying door 1790 h x 2090mm w and then fit doors Have not had any quotes yet Am in o/s london borough no probs parking in drive ec