Real 2026 price ranges for every job type — plus an instant calculator and the factors that move your quote up or down.
Waterproofing is one of those jobs where getting it right the first time is dramatically cheaper than fixing it later — remedial work after water damage typically costs 5–10× more than the original waterproofing would have. Here's what you can expect to pay across New Zealand in 2026.
| Job type | Typical price | Common total |
|---|---|---|
| Bathroom / wet area | $60–$100 / m² | $1,500–$4,000 |
| Shower only | $60–$100 / m² | $800–$2,500 |
| Deck / balcony (membrane) | $120–$200 / m² | $3,000–$12,000 |
| Tiled deck / balcony | $200–$300 / m² | $6,000–$18,000 |
| Flat / warm roof | $100–$180 / m² | $5,000–$25,000 |
| Basement / tanking | $80–$140 / m² | $4,000–$20,000+ |
| Leaky-building remediation | Quoted per scope | $30,000–$150,000+ |
Indicative NZ ranges. Excludes demolition, structural repair, access/scaffold and consents. Always confirm with a free on-site inspection.
A ballpark in seconds. Final price confirmed at your free inspection.
Calculators give you a ballpark — a free on-site inspection gives you a fixed price with no surprises, plus our 15-year guarantee. We cover Auckland, Tauranga and 8 more NZ cities.
Book my free inspection →Most showers cost $800–$2,500 depending on size and whether the old lining is stripped. Done before tiling, it's the cheapest leak you'll ever prevent.
A membrane re-coat or replacement runs $120–$200/m² (commonly $3,000–$12,000). If water has reached the structure, repair is quoted on top.
Sudden accidental damage may be; gradual leaks usually aren't. We can document the cause to support a claim where relevant.