Both plumbing and drainage systems are crucial parts of the bigger picture. Ensuring that these two systems are properly laid out, water supply is continuous, and safe disposal of wastewater are just some of the key factors to consider in any project involving construction. However, behind these systems are complex and critical processes known as plumbing and drainage estimating. These processes are vital for accurately and efficiently assessing the cost, resources needed, and timeframe needed to be able to implement these systems in any project that a contractor is handling.