We have recently been seeing adverts for people to have their rendered surfaces painted to make them look fresh and clean. There are certain circumstances where this is appropriate, however very often the dirt that you think you see is an algae or biological growth. Unless you kill this and treat it, the infection will reappear at a later date. We can treat the surface gently and thoroughly which as you can see from the images causes the same effect.
Should i clean my render
Should i paint my render?
Render cleaners near me
Render cleaning