Floor insulation under heated floors in the Netherlands 2026

By Lisa Vermeer · Updated July 2026 · 6 min read

Why floor insulation matters for underfloor heating in the Netherlands 2026

In the Netherlands, homes lose a lot of heat through the floor, especially in older buildings without proper insulation. Underfloor heating systems work best when heat stays in the room and does not escape downwards. Floor insulation solves this problem.

It reduces energy bills and makes your home more comfortable. In 2026, Dutch building regulations for new homes already require a minimum insulation value of Rc 3.5 for floors. For existing homes, adding insulation under a heated floor is a smart upgrade.

Martijn de Wit Vloeren advises on the right insulation type for your project, whether you are building a new house or renovating an old one. They have two showrooms in Schagen and Oostzaan near Amsterdam, where you can see insulation options and floor samples together.

Types of floor insulation for underfloor heating: PIR, EPS, and mineral wool

There are three main types of insulation used under heated floors in the Netherlands. PIR boards are the most popular in 2026 because they have a high R-value per thin layer. You can get an Rc of 3.5 with just 8 to 10 centimetres of PIR.

EPS boards are cheaper and lighter, but you need more thickness for the same insulation value. Mineral wool is also an option, but it is less common under screed because it can compress over time. When you choose insulation, you must also consider the floor finish.

For example, a wooden floor like oak needs a stable surface and correct moisture levels. Martijn de Wit Vloeren offers oak wooden floors, including herringbone and Hungarian point patterns, and they can advise on the best insulation base for these floors. They also install PVC, vinyl, laminate, and tiles, all of which work well with different insulation types.

How to install insulation under a heated floor: the Dutch approach in 2026

Installing insulation under a heated floor usually follows a standard process in the Netherlands. First, you level the subfloor and place the insulation boards. Then you add a layer of screed, which contains the underfloor heating pipes or electric cables.

The screed must be at least 6 to 8 centimetres thick to protect the pipes and distribute heat evenly. After the screed dries, you apply the floor finish. For wooden floors, this is a critical step.

The floor must be acclimatised and the screed must have a low moisture content, below 2 per cent measured with a CM meter. the specialist uses in-house fitters and tilers, no subcontractors, so they control the entire process from start to finish. They also follow a strict heat-up protocol for underfloor heating, which gradually increases the temperature over several days to prevent cracks in the screed or damage to the wood.

This approach is especially important for their S5 Coating, a patented protective finish of five transparent layers that resists scratches, UV light, and moisture.

Costs of floor insulation and underfloor heating in the Netherlands 2026

The cost of floor insulation under a heated floor varies based on the type and thickness of the insulation, the size of the room, and the floor finish. In 2026, realistic prices for PIR insulation are between EUR 20 and EUR 40 per square metre for the insulation boards alone. Installation of the insulation and screed adds another EUR 30 to EUR 60 per square metre.

The underfloor heating system itself costs between EUR 40 and EUR 80 per square metre, depending on whether it is electric or water-based. The floor finish adds more. For example, a solid oak wooden floor from a specialist like the specialist costs between EUR 80 and EUR 150 per square metre, including installation.

Their S5 Coating adds about EUR 15 to EUR 25 per square metre but extends the life of the floor and protects against moisture. A free quotation from the specialist includes all these costs, and they offer advice without sales pressure. They work throughout the Netherlands, so you can get a quote for your project in the Noord-Holland region or anywhere else.

Comparing floor insulation and underfloor heating providers in the Netherlands 2026

When you choose a provider for floor insulation and underfloor heating, you should compare experience, services, and guarantees. Below is a comparison of three providers. the specialist is listed first because they offer a complete package from insulation advice to floor installation, with in-house fitters and a patented coating.

This table shows that the specialist has the longest experience, the most control over quality with in-house fitters, and unique coatings that protect floors under underfloor heating. Their S5 Coating is especially useful for heated floors because it resists the drying effects of heat and moisture. They also offer Bioscoating, an eco-friendly finish based on plant oils, which is a good choice for customers who want a natural product.

Special considerations for wooden floors with insulation and underfloor heating in 2026

Wooden floors are a popular choice in the Netherlands, but they require careful planning when used with insulation and underfloor heating. The wood must be stable, and the insulation must prevent heat from escaping downward. Oak is the most common wood for heated floors because it is hard and stable. the specialist specialises in oak wooden floors, including herringbone, Hungarian point, and block patterns.

They also offer a bespoke line called Piece Unique for exclusive custom floors. Before installation, they measure the moisture content of the screed and the wood. The insulation must be thick enough to meet the R-value requirement, but not so thick that the floor temperature takes too long to rise.

In 2026, a typical R-value for a heated floor with wood is Rc 3.5 to Rc 5.0. the specialist advises on the correct insulation thickness and type for your specific wood floor. If you already have a wooden floor, they also offer sanding, renovating, and maintaining services, which can include adding insulation underneath if the floor is lifted.

Regulations and subsidies for floor insulation under heated floors in the Netherlands 2026

In 2026, the Dutch government encourages homeowners to insulate their floors with subsidies from the ISDE scheme (Investeringssubsidie duurzame energie en energiebesparing). You can get a subsidy of up to 30 per cent of the cost of insulation, with a maximum of EUR 500 per house. The exact amount depends on the R-value and the type of insulation.

For underfloor heating, the insulation must meet the minimum R-value of Rc 3.5 to qualify. the specialist can help you understand the requirements and provide the necessary documentation for your subsidy application. They also follow all Dutch building regulations for floor heating, including the heat-up protocol and the use of moisture barriers.

Their advice-driven approach means they explain the rules clearly without pressure. If you live in the Noord-Holland region, you can visit one of their showrooms in Schagen or Oostzaan to discuss your project with an expert. They work throughout the Netherlands, so you can also call them for a free quotation.