New Zealand's Waterproofing Specialists
Gunac | Waterproofing Specialists (formerly Gunac) is the specialist waterproofing division of Access | Partners in Property. With over 40 years of experience in commercial and residential waterproofing, Gunac brings unmatched depth of expertise to every project.
As an approved applicator for New Zealand's leading waterproofing systems, Gunac has undertaken a very wide range of projects of varying scope and scale — from new construction waterproofing to remedying complex water ingress issues in existing buildings.
Our Waterproofing Systems
- Sheet membranes (Sika Sarnafil, Nuralite, Viking TPO)
- Liquid membranes
- High build coatings
- Below-ground tanking
- Sealants and specialist products
Services
- New construction waterproofing
- Membrane roofing
- Annual roof inspections with photo reports
- External coating for concrete, metal, cladding, and timber
- Water ingress diagnosis and long-term resolution
- Maintenance plans
Approved Product Partners
Allco · Allnex · Ardex · Equus · GAF Roofing · Nuralite · Sealco · Sika · Viking Roofspec
Notable Projects
- Crowne Plaza — membrane roof overlay
- Anglesea Tower — Viking TPO sheet membrane
- Numerous commercial and residential projects across NZ