i would say bout 1 hour to 1 hour + 1/2. if im doing a customer who is not a window customer, i start from 75 then add on for windows as a one off etc. the most ive done was for cons, cladding fascias and underneath of gutters one off windows...cost £200 and took 2 1/2 hrs, and that was with just using wfp..they were very happy as ive had 2 recommendatrions of them!!! but in those 2 1/2 hrs i work my nuts off, am ready for bed after..lol!!!