Welcome to ThermoWoon
Save up to 40% on your heating bill with fast, professional insulation.
ThermoWoon Isolatie provides high-quality residential insulation services across the Netherlands. We specialise in underfloor, cavity wall, pitched roof and flat roof insulation — improving comfort, reducing energy bills and increasing the value of your home. Our work is fast, clean and professionally certified.
Why Choose Thermo
Woon
Trusted, efficient, and professional insulation services across the Netherlands.
Underfloor Insulation
Professional PIR and EPS solutions for warmer floors and lower energy bills.
Roof and Attic Insulation
High-efficiency pitched roof insulation to maintain comfort all year
Cavity Wall & Wall Insulation
Improving home energy performance with advanced wall insulation methods
Moisture Barrier
Protect your crawl space from humidity and cold air infiltration
How It Works
Simple, clear, and efficient process.
Emma van Dijk -Almere
Active Insulation was fast, professional, and very tidy. Our home is noticeably warmer. Highly recommended!
Mark de Jong – Amsterdam
Clear communication and a fair quote. No surprises. The installation was done quickly and perfectly.
Sarah Visser — Utrecht
Super friendly team. They inspected, explained everything, and finished in a few hours. Great quality!
About ThermoWoon
Experienced, reliable, and customer-focused.
At ThermoWoon Isolatie, we specialise in delivering fast, clean, and professional insulation services across the Netherlands. With years of hands-on experience in underfloor, cavity wall, pitched roof, and flat roof insulation, we focus on improving comfort, lowering energy bills, and adding long-term value to your home.
Our work is reliable, detail-driven, and always customer-focused. Every installation is completed with care — no mess, no stress, just high-quality insulation you can trust.
✔️ Certified Installers
✔️ Fast & Clean Work
✔️ Energy Savings
✔️ Trusted Across the Netherlands
F.A.Q
1. How long does the installation take?
Most installations take 3–5 hours, depending on the area and insulation type.
3. Do you offer a free inspection?
Yes — we provide a free home inspection and a clear, no-obligation quote.
5. Will insulation reduce my energy bill?
Yes. Most customers save 20%–40% on heating costs.
2. Is the installation messy?
No. Our team works clean and professionally. We protect surfaces and clean everything before leaving.
4. What areas do you serve?
We provide insulation services across Amsterdam, Almere, Utrecht, Haarlem, Hilversum, Amstelveen, Zaandam, Hoofddorp, and all surrounding regions.
6. Do I need to be home during the installation?
No — as long as we have access to the areas that need insulation, you don’t need to be home. Many customers continue their day normally while we work.