Waterproofing Trades Association of Singapore (WTAS) is made up of professionals from the manufacturers, distributor suppliers, contractors and specialist contractors of the waterproofing industry of Singapore.

WTAS aspires to profile and promote the association as a platform and hub centre for collaboration and interchanging of view, ideas, knowledge and technologies for all related waterproofing matters.

WTAS also focus its efforts on developing waterproofing standards, training guidelines, skills upgrading programme and field practices; to further promote education to the construction industry in Singapore.