Greenisolatie is the specialist in Cavity wall insulation!
- Save on your energy bill
- Improved comfort in your home
- Better for your home, and better for the world!
Yes, I want to improve my home’s insulation and get advice about available subsidies
- 25,000+ houses insulated
- Subsidy arranged from A to Z
- 10 years insulation experience

- 25,000+ houses insulated

- Rated 5 stars

- Done in 1 day!
10 years insulation experience
- 25,000+ Houses insulated
Rated with 5 stars
Done in 1 day
10 years insulation experience
- 25,000+ Houses insulated
Rated with 5 stars
Done in 1 day
What is cavity wall insulation?
Cavity wall insulation means that the space between the inner and outer walls of your home is filled with insulating material.
This material prevents heat from escaping and cold air from entering. By insulating the cavity wall, your home becomes more energy-efficient. This in turn provides:
- Lower heating costs
- More comfortable living environment at home
The insulation material we use is carefully selected based on quality, your type of home, and your specific needs.
This way, we always guarantee optimal insulation.
The entire process is quick, efficient, and minimally disruptive to your daily life!
Advantages of cavity wall insulation by Green Isolatie

Save up to €570 per year:
Thanks to efficient insulation, the heat stays inside, resulting in a significant saving on your energy bill. Based on average annual heating costs of €1900 (source: Nibud), a 30% saving is worth approximately €570 per year.

Improved living comfort:
A well-insulated home ensures a constant and comfortable indoor temperature, without unpleasant cold spots or drafts.

Sustainable and environmentally friendly
Reduce your CO2 emissions and contribute to a better environment by optimizing your energy consumption. The less energy you need, the less you emit.

Increased property value
Good insulation is an investment in your home that increases its market value and makes your property more attractive to future buyers.

Non-binding advice
At Greenisolatie, we are always ready to personally advise you on the best option(s).

Old insulation is not a problem.
Is there old insulation present? That’s not a problem, as our cavity wall insulation can be applied over most existing layers.
Step-by-step cavity wall insulation upgrade
01
- Self-check
Briefly check your home for suitability for cavity wall insulation. Inspect your walls for cavity space and check if insulation is already present. Measure the thickness of your walls and consider the year of construction and type of house to determine whether cavity wall insulation is appropriate.
02
- On-site expert assessment
Invite a Greenisolatie expert for a thorough assessment of your home. The specialist will inspect the cavity walls, determine the best insulation methods, and discuss the options and benefits of the insulation with you.
03
- Realize the cavity wall insulation upgrade.
After the assessment, our professional team carries out the insulation work. The insulation material is efficiently applied into the cavity walls, after which the holes are neatly sealed and the work area is left clean. We ensure high-quality and durable insulation.