Leaking kitchen pipes can be costly in all sorts of ways if the problem is ignored. Leaks corrode your pipes and waste hundreds of gallons of water per month not ideal if you are on a water meter. Plumbers always advise home owners to regularly check all pipes, taps and sinks to make sure there are no leaks. Leaks can cause the breakdown of your kitchen cabinetry and might even attract pests as the wood begins to rot. Do not make the mistake of assuming that moisture under the kitchen sink is from washed-out recyclables. Always check its source. If a leak is left for too long, it becomes a bigger job to fix.