Hi, my new house is around 30 years too. Need to change the whole piping and wiring system. Any good contact that forumers can recommend? Thanks in advance.

Dear stevie8, I just bought the house. Previously house was rented, I just inspected the property yesterday, there are signs of water leaking from 1st floor bathroom and also from top.

Yeah, will give a call to the owner to check whether GI pipes or not. Dont think I can do that little hacking, same with my hubby as he's not willing to do this kind of work.

Just concern on the hygiene if it is GI pipes and I am only changing the joints, is there any issues?

Dear stevie8, wow what a lengthy and informative explanation that u give. Understood and really appreciate it. Now I know where to go from here. Thanks a lot.