Looking to pressure wash the flat concrete rooftop of a shophouse building.  Accessible by stairwell all the way up from ground floor to 3rd.  Location is Ton Pao (between Saraphi and San Kamphaeng).  Hoping to find someone who will make it look nice and not create any new problems while doing the job.  Let me know of you can recommend someone!

Oooo...looking for the same...being doing it myself.....but it is too much like hard work.