instalezer is good. don't know if he's cheap. 050 521 7626
eliezer, the guy who owns it, is american so he's easy to explain things to. also, he has a self help line for an hour every night. you call up and he'll try to walk you through solving the problem on your own, no charge! for something like a blocked kitchen drain, it could be that would be enough. save yourself some money.