The roof’s I’ve cleaned so far have taken around 1- 1 ½ hours. This is just the Roof. Polycarb/Glass, Finals and all the support/cross beams. If there’s a lot of build up in the gutters I would swill it away.
If the custy wanted a full Con Clean I would do the gutters inside and out and all the upvc frames, doors and glass.
The one I quoted for £65 (Roof Only) I estimated 1 ½ hrs to clean. I’m still trying to find a good workflow so I would imagine I will get quicker the more I do.
Wayne