Know what it pays off
before you choose.
Heat pump, solar panels, insulation or an EV charger? Take the free 2-minute home check. You instantly see your estimated subsidy, savings and payback time – and only then the installers that suit you.
Free · no account needed · max. 3 installers
From idea to quote in three steps
No endless forms, and no calls from ten companies at once.
Take the home check
Home type, year built, energy label, usage and what you want to improve. Done in about 2 minutes.
See what it pays off
An estimated subsidy based on the ISDE rules of RVO (the Netherlands Enterprise Agency), plus yearly savings and payback time.
Choose your installers
We match you with up to 3 suitable installers near you. You decide who gets your details.
Honest numbers, no pressure
Numbers first
You see your subsidy and savings before anyone calls you.
Max. 3 installers
Your details never go to more than three companies, and only with your consent.
Complete file
Installers receive your home details straight away, so you don’t have to explain everything again.
Free for you
Installers pay for the introduction; you pay nothing.
How much subsidy is available
The ISDE (the Dutch investment subsidy for sustainable energy and energy saving) is for owner-occupiers. You apply to RVO, the Netherlands Enterprise Agency, after installation. Carrying out two or more measures within 24 months? Then the insulation amount doubles.
Heat pump (air-to-water, first one)
€1,025 base amount + €225 per kW + €200 for energy label A+++. Always at least €500.
Example 4 kW A+++: €2,125.
New in 2026: ventilation
A one-off €400 for energy-efficient ventilation combined with insulation.
| Insulation | 1 measure | 2+ measures |
|---|---|---|
| Roof | €16.25 | €32.50 |
| Cavity wall | €5.25 | €10.50 |
| Facade (exterior wall) | €20.25 | €40.50 |
| Floor | €5.50 | €11.00 |
| Crawl-space ground | €3.00 | €6.00 |
| HR++ double glazing | €25 | €50 |
| Triple glazing | €111 | €222 |
Source: RVO – ISDE: what changes in 2026 (in Dutch). The exact amount depends on the product (RVO’s approved product list, the “meldcodelijst”) and the number of m².
Solar panels and EV chargers are not covered by the ISDE. Solar panels on homes are subject to 0% VAT.
Good to know
Is the subsidy estimate guaranteed?
No. It’s an estimate based on the 2026 ISDE rules. The final amount depends on the exact product (RVO’s approved product list), the actual m² and whether you meet the conditions. RVO decides on your application.
What does Verduurklik cost me?
Nothing. Installers pay us for an introduction. This is also set out in our terms and conditions.
How many companies will contact me?
Three at most, and only the installers you tick.
What happens to my data?
Your check answers stay in your own browser until you request a quote. Only then do we share them, with your consent, with the installers you chose. Read our privacy statement.
I rent my home. Can I get a subsidy too?
The ISDE for homes is meant for owner-occupiers. Tenants can use the check as a starting point for a conversation with their landlord.
When do I apply for the ISDE?
After installation, no later than 24 months afterwards, via RVO. Ask your installer to take photos during the work; you’ll need them as proof.