Welcome to GDL Damp Proofing. We provide a complete waterproofing service. From contemporary flat roof projects, to historic buildings, you can rely on our team of expert Sydney-based contractors. Not only do we understand that every project is different, we are committed to ensuring that every client receives the best possible solution. The team services both households and companies in Camperdown, Newtown and surrounding areas.


There are many things that set the contractors at GDL apart from other waterproofing companies:

  • We have more than 30 years of industry experience
  • We treat every property as if it were our own, meaning we will leave it as we found it
  • We use genuine Westox products at competitive rates
  • We provide a written 20-year guarantee
  • We also use the latest products for waterproofing of wet areas, decks, retaining walls and planter boxes

Our five-coat system to wet areas has proven to be the smarter choice for client’s peace of mind, especially considering leaks are a major problem within the building industry. Concrete slabs treated with ‘DENSI-CRETE’ by CONTREAT, (a unique integral moisture barrier forming a permanent waterproof gel within concrete) will last the entire lifetime of your concrete. One of the main benefits of superior curing and waterproofing of concrete is minimal site disruption which eliminates expensive downtime. Reach out to the team today to enquire!


GDL Damp Proofing has successfully completed waterproofing projects for numerous homes and companies in and around the Sydney area, including Campertown and Newtown. If your roof top, deck or balcony requires waterproofing, please don’t hesitate to get in touch with our friendly and reliable team of contractors. To find out more and discuss your requirements, call 0403 811 206 today.



Call us today to get a free quote!