Dont think its the units you state as theyve only just been built, Im doing the windows on the office blocks but the lady who asked me too look at the job yesterday added that the site manager has asked for the cladding to be done too, the windows are booked in but cladding needs doing by weekend of 15th May, its a 2 man job or 1 man 2 and 1/2 days I recon.