Info needed by anybody in the know, been asked to clean 2 tennis courts, done lots of patios/drives etc would you just treat them the same or are there things to beware of? also the customer wants them sealing afterwards, is there something on the market specially for the job or could anybody else suggest a suitable sealer? As always all info greatfully received.
cheers

Stew. 

I've not done a Tennis courst myself but i have seen someone clean there own and the were just straight forward pressure washing the surface and brushing away the waste, as for sealing I'm not sure, maybe try to get hold of a company that lay Tennis courts.