WaterLock is an emergency automatic water shut-off system that you as a homeowner can set to your personal preference and gain peace of mind and protection against major water damage. Our systems are insured and built with quality guaranteed. WaterLock is a single unit water control system that detects leaks and breaks in all pipes, both above and below ground, also detecting leaks and breaks in all your home's common appliances such as washers, water heaters, sprinkler systems, and spas. WaterLock is also used to prevent unnecessary waste and over-use, which could lower your monthly bill.