Measure

Insulation

Keeping the heat in: more comfort, lower heating costs and the foundation for every next step, such as a heat pump.

counts for your labelISDE subsidy possible

What it is

The foundation of an efficient home

Heat escapes through an uninsulated roof, wall or floor. Insulation keeps it in, so you need to heat less. You notice it right away: fewer draughts, no cold floors and a more even temperature throughout the house.

What you can insulate

Roof insulation, on the inside or outside
Cavity wall insulation, if your home has a cavity
Facade insulation, on the outside or inside of the wall
Floor insulation through the crawl space
Pipe insulation for heating and hot-water pipes in unheated spaces

What it gets you

More comfort, less heating

The savings depend on what you insulate and the current state of your home. Your installer puts them in their quote; you see them next to your new monthly payment.

Lower heating costs and a warmer home
A better energy label, and with it extra borrowing capacity
ISDE subsidy possible, which you receive yourself
Your home becomes ready for a heat pump

Good to know

Before you start

After insulating, your home becomes more airtight. Make sure there's good ventilation to prevent damp.
Start where most heat escapes; that's often the roof.
Have your cavity and crawl space checked for suitability first.
ISDE conditions for insulation differ per measure. Check on the RVO website what applies to you.

Financing

How to finance it with groenbudget

This measure improves your energy label. That's why your lender may lend more for it than for a regular renovation: you get extra borrowing capacity on top of your regular capacity.

We don't deduct the ISDE subsidy from your increase: you finance the full amount of your quote. You receive the subsidy after the work and can use it to repay extra, usually penalty-free.

We calculate with the amount from your installer's quote
Everything in one mortgage increase, no separate loan
Repay over 30 years (lowest monthly payment) or 15 years
Paid out through a construction deposit, based on your installer's invoices

Questions about this measure

Which insulation gets me the most?

That differs per home. In many older homes most heat escapes through the roof and walls. Your installer looks at what has the most effect in your home.

Can I combine several types of insulation?

Yes. Everything goes into one application. Several measures together often give a bigger label jump and can be favourable for the subsidy.

Do I need to insulate before getting a heat pump?

Often yes, especially for an all-electric heat pump. You can include both in the same application.