Professional Services — New Zealand
Trade Waterproofing Services
Professional waterproofing for construction companies throughout New Zealand. Delivered by Allseal NZ.
Waterproofing That Lasts
Allseal NZ delivers professional waterproofing solutions to construction companies, builders, and developers across New Zealand. Every project is completed to NZ Building Code standards with full documentation.
🏛 Below-Ground & Basements
Tanking, cavity drain systems, cementitious and membrane systems for below-ground structures. BS 8102:2022 compliant.
🏠 Roofing & External Decks
Flat roof membranes, traffic-bearing deck systems, balconies and external slabs. Liquid-applied and sheet systems.
🚿 Wet Areas & Bathrooms
Shower enclosures, wet rooms, and bathroom waterproofing to AS/NZS 3740:2021. Full flood test certification.
🏊 Pools & Water Features
Swimming pools, spa pools, water features and immersion tanks. Cementitious and flexible membrane systems.
🏙 Balconies & Planter Boxes
Traffic-bearing waterproofing for balconies, terraces, planter boxes and green roof systems.
🔧 Remedial & Repairs
Failed membrane diagnosis, remedial waterproofing, and repair of existing defective systems. Full failure analysis reports available.
Get a Quote
Allseal NZ works with construction companies, builders, and developers throughout New Zealand. All work is completed to NZ Building Code with full documentation and flood test certification.