$$ 1st Payment ?

[eniglda 0]

Paying 30% for the 1st payment before any work done is too high.

Please negotiate with them.

I am planning to pay next 40% on the day when the wet work/ material arrive my place.

yes, pls neg for 10-40-40-10. and if your ID is flexi enough, I suppose you can talk terms through. It's too insecure to pay that high up front. talking abt thousands here man.