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Insulation Prices New Zealand
Prices per m² include GST. Healthy Homes Standards require minimum R-value insulation in rental properties. Warmer Kiwi Homes grants available.
Insulation Prices by Service — New Zealand
Prices per m² include GST. Healthy Homes Standards require minimum R-value insulation in rental properties. Warmer Kiwi Homes grants available.
| Service | From | Average | Up to |
|---|---|---|---|
| 🏠Ceiling Batt Insulation Ceiling batt insulation supply and install | NZ$8/m² | NZ$12/m² | NZ$16/m² |
| 🧱Wall Batt Insulation Wall batt insulation fitted between studs | NZ$12/m² | NZ$17/m² | NZ$22/m² |
| 🏗️Underfloor Insulation Underfloor insulation batts stapled between floor joists | NZ$15/m² | NZ$21/m² | NZ$28/m² |
| 💨Open Cell Spray Foam Open cell spray foam for irregular cavities | NZ$20/m² | NZ$29/m² | NZ$38/m² |
| 🔒Closed Cell Spray Foam Closed cell spray foam — high R-value, moisture resistant | NZ$35/m² | NZ$47/m² | NZ$60/m² |
| 🌬️Blown-In Insulation Blown-in loose-fill for ceilings and hard-to-reach spaces | NZ$12/m² | NZ$18/m² | NZ$24/m² |
| 🪟Cavity Wall Insulation Cavity wall fill insulation — injected or blown | NZ$18/m² | NZ$25/m² | NZ$32/m² |
| ☀️Roof Sarking / Radiant Barrier Reflective roof sarking under iron or tiles | NZ$10/m² | NZ$14/m² | NZ$18/m² |
| 🔇Acoustic / Soundproofing Acoustic insulation batts for sound reduction | NZ$22/m² | NZ$35/m² | NZ$48/m² |
| 🗑️Old Insulation Removal Remove and dispose of old or damaged insulation | NZ$6/m² | NZ$10/m² | NZ$14/m² |
| ⬆️Top-Up / Top-Off Existing Add insulation over existing batts to increase R-value | NZ$6/m² | NZ$9/m² | NZ$12/m² |
| 🏢External Wall Cladding Insulation External wall insulation system with cladding finish | NZ$30/m² | NZ$42/m² | NZ$55/m² |
Insulation Prices by City
Click a city for detailed local pricing and tips
Auckland
Auckland Region · 1.7M
From NZ$8/m²
Wellington
Wellington Region · 215K
From NZ$8/m²
Lower Hutt
Wellington Region · 110K
Pricing available
Christchurch
Canterbury · 390K
From NZ$8/m²
Hamilton
Waikato · 180K
Pricing available
Tauranga
Waikato · 155K
Pricing available
Dunedin
Otago · 135K
Pricing available
Queenstown
Otago · 50K
Pricing available
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Insulation in New Zealand ranges from NZ$6/m² for basic ceiling batts to NZ$60/m² for external wall insulation systems. Prices per m² include GST. Healthy Homes Standards require minimum R-value insulation in rental properties. Warmer Kiwi Homes grants available.
The most common types in New Zealand are batt insulation (ceiling and walls), blown-in loose fill, spray foam (open and closed cell), cavity wall insulation, and external wall insulation systems. Each has different cost, performance, and application characteristics.
R-value requirements vary by climate zone. Prices per m² include GST. Healthy Homes Standards require minimum R-value insulation in rental properties. Warmer Kiwi Homes grants available. A professional installer can recommend the right R-value for your location and building type.
The Warmer Kiwi Homes programme covers up to 80% of insulation costs for eligible homeowners. Check eligibility at EECA.
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