What to Look for When Hiring a Heat Pump Installer in NZ
- REW registration certificate
- HVAC-certified installer
- Brand-authorised installer (Mitsubishi, Fujitsu etc)
- Correct sizing calculation for your room
- 5+ year warranty on parts and labour
Red Flags to Watch Out For
- Won't show REW number
- Oversizes or undersizes without explanation
- No warranty on installation
- Using non-brand-approved parts
Typical Costs Across NZ
Single room unit (supply + install): $2,500–$4,500. Multi-split system: $8,000–$18,000+
Costs vary significantly by city — Auckland and Queenstown are typically the most expensive, while Invercargill and Dunedin are among the most affordable.
Licensing Requirements
Must be a Registered Electrical Worker (REW). Refrigerant handling requires an additional certificate. Check the register →