One of the most important steps in gunite or concrete swimming pool construction is selecting the right type of waterproofing. Concrete is a porous substrate prone to water penetration; therefore, it has to be sealed to keep water in the pool, in addition to keeping ground water out, which is often forgotten. At East African Flooring we offer waterproofing services call 0773142878 for our service delivery. We charge ksh1500 per square meter.