We provide quality waterproofing solutions in Wanaka, Queenstown and surrounding areas for:

  • Flat roofing & internal gutters
  • Tanking areas, footings, underslab and retaining walls
  • Green roofs, warm roofs and specialised systems
  • Decks and balconies
  • Internal wet areas
  • Landscaping features

Membrane Re-Roofing

If you have an old or failing membrane on a roof or balcony Watertight Systems can help. We specialise in overlaying old membranes with the Warm Roof System, consisting of high performance PIR foam and the membrane of your choice. The feedback from customers who have carried out this work has been incredibly positive. Owners say their homes are noticeably warmer in winter and cooler in summer, “like living in a new home”. As Licensed Building Practitioners and membrane roofers we can take care of everything from substrate replacement through to a new membrane system.

We offer:
• Top of the range products
• Professional advice
• Peace of mind
• Project Management
• Health and Safety Compliance

Services 5 Queenstown Drainage Mat installation and backfilling for Tanking Waterproofing roofing services Watertight Systems Wanaka New Zealand

Drainage Mat Installation & Tanking Backfilling

We can supply and install a range of products for the drainage and protection of tanking membranes. We can also oversee backfilling to ensure that the materials are installed correctly and that water drains away from the structure, this is crucial to the performance of the tanking membrane.

Substrate Requirements

To ensure that the substrate is built to best practice and to comply with the building code & warranty requirements we provide a substrate checklist early in the game. The earlier this consultation is carried out the better as it may prevent any problems when it comes time for membrane application.

Membrane Protection

It is vital that all membranes are protected after application whilst building work may still be going on. We will advise you and your builder on the best ways to do this.


On completion of the job we provide a warranty for each membrane that we have installed. In most cases there is a 15 -20 year product warranty and a 5 year workmanship warranty however timeframes can vary in some cases. Please check the warranty period for your chosen membrane prior to application.

Design & Planning Consultation

We understand which membrane will best suit your project in terms of product specification, style and budget. We are keen to be involved from the start to help you chose the best option which may avoid changes, delays or frustrations at a later point.

Roof Maintenance Programme

Roofing and balcony membranes should be regularly inspected and cleaned in order to comply with warranty conditions, and also to get the best life from your membrane. Most warranty conditions specify that the membrane must be inspected by a certified applicator every 1 to 2 years.

Autumn and winter are the best time to carry out inspections as falling leaves can often cause blockages.

Inspections cost $399 + GST. You will receive a written report to add to the warranty and care records. We will quote for any work that may need to be carried out.

Book an Inspection