Advise for repiping a house

[Srinivas Mudireddy]

Hi,

I have a 1250sqft 2 story 3 bed 2 bath condo built in 1977 which recently had a big water leak. Because the tenant couldn't detect it in time, we had to throw away newly installed floors on entire downstairs. That made me think if I should repipe the house to avoid any future water leaks since existing copper pipes are 43 years old and we have hard water here in San Diego. Do you think it is a good idea and what would be the typical cost to repipe? I have gotten quotes from as low as 3500 to as high as 12000 and confused what to do.

Thanks,

Srinivas