A slab leak can cause significant damage and really isn't that difficult to repair only I am sure your thoughts have you imagining a jackhammer in your livingroom, Simply not the case. In most cases repiping a home or rerouting a single line is all that is needed. Repiping is slightly different in that it generally refers to replacing all of the water pipes in the home. A reroute more implies a single water line that is replaced. Water line repair is not that difficult.
Nothing is worse than looking forward to a hot shower only to find your water is dead cold. If your water heater is over 8 years old and new water heater installation is usually recommended. A new water heater installation should cost you about $1500-$1700 that should include, your water heater replacement, the labor and to haul your old water heater away. Generally takes about 3 hours.
Mold also becomes a much larger problem when you ignore any kind of water leakage. Mold growth begins in a matter of hours and can be very detrimental to the health of especially children and the elderly or those with compromised immune systems.
Being a homeonwer is a very rewarding experience. You worked hard to make such a purchase. Dreams of all kinds are going to be fullfilled in your home. Keep your home in good order for the future and safety of your family.