So for me a 4 bed house out is: £20In and out: £30With me there's no set formula.
i was just wanting 2 know how you all price your buildings the way i price is count the number of pains of glass & divide it by 4,like if i go to a basic 3-bedroom 2 storey 9 windows & 2 doors at a total of 22 pains of glass, it would cost 5.5.Is there any other methods ?