· 3 min read
Heat Pump Installation Cost Netherlands 2026 — Price for Air and Ground Source
How much does a heat pump cost in the Netherlands in 2026? Complete guide to air-to-water, hybrid and ground-source heat pump costs, ISDE grant and when you need a permit or architect.
Quick Answer
Installing a heat pump in the Netherlands in 2026 costs on average € 8,000–€ 18,000 for an air-to-water heat pump (the most common type). Hybrid heat pump (with existing boiler): € 4,000–€ 9,000. Ground-source (borehole): € 15,000–€ 30,000. After ISDE grant of € 1,500–€ 4,400, the net cost is considerably lower.
Costs by Heat Pump Type
| Type | Description | Cost (including installation) | ISDE grant | |---|---|---|---| | Hybrid heat pump | Air heat pump + existing boiler | € 4,000–€ 9,000 | Yes (€ 1,000–€ 2,500) | | Air-to-water (monovalent) | Replaces boiler completely | € 8,000–€ 18,000 | Yes (€ 1,500–€ 4,400) | | Air-to-air (AC/heating) | Room heating only | € 2,500–€ 6,000 | No (no hot water) | | Ground-source (horizontal) | Earth collector, large garden | € 12,000–€ 20,000 | Yes | | Ground-source (vertical borehole) | Boreholes 50–150 m deep | € 18,000–€ 35,000 | Yes | | Hot water heat pump (cylinder) | Domestic hot water only | € 1,200–€ 2,500 | Yes |
Modifications Required
A heat pump works best in combination with:
| Modification | Reason | Extra cost | |---|---|---| | Low-temperature heating (underfloor) | Heat pump delivers 35–45°C; radiators need 70°C | € 5,000–€ 15,000 (underfloor) | | Oversized radiators | Alternative to underfloor heating | € 1,000–€ 3,000 | | Roof insulation | Reduces heat loss, smaller heat pump needed | € 3,000–€ 8,000 | | Electrical upgrade (3×25A) | Heat pump requires more power | € 500–€ 1,500 | | Smart thermostat | Optimise COP | € 150–€ 400 |
Efficiency (COP)
| Heat pump type | COP | Meaning | |---|---|---| | Air-to-water | 2.5–4.0 | For every €1 electricity: €2.50–4 heat | | Ground-source | 3.5–5.0 | More stable than air, higher efficiency | | Hybrid | 2.0–3.5 | Gas mode at peak demand |
Do You Need a Permit?
Almost never for the heat pump itself:
- Outdoor unit (≤ 0.5 m³, not at front of property): permit-free
- Outdoor unit > 0.5 m³ or at front of property: environmental permit required
- Borehole > 500 m deep: notification to province required
Do You Need an Architect?
- Heat pump without structural modifications: no architect required
- Underfloor heating installation during renovation: contractor; architect only for larger projects
- Heat pump as part of net-zero renovation: architect or building physics adviser coordinates all systems
ISDE Grant 2026
| Measure | Grant | |---|---| | Air-to-water heat pump | € 1,575–€ 4,400 | | Hybrid heat pump | € 1,000–€ 2,500 | | Ground-source heat pump | € 2,000–€ 4,400 | | Hot water heat pump | € 250–€ 400 |
Apply via RVO.nl before installation.
Tips
- Choose an installer with recognised certification (STEK, ISSO 71/72)
- Insulate the home first, then install the heat pump
- Get 3 quotes — price differences of 20–40% are common
- Combine with smart meter and dynamic tariff for lowest running costs
- Check that your electrical supply is adequate (minimum 3×25A)
Conclusion
Installing a heat pump in the Netherlands in 2026 costs on average € 8,000–€ 18,000 (air-to-water, monovalent). After the ISDE grant, the net cost is € 4,000–€ 14,000. No permit required in the vast majority of cases.
archi.sulerr.com integrates the heat pump into your renovation plan — including insulation plan, underfloor heating design and environmental permit where required.