Why in-house fitters matter for heated floor installs in Dutch 2026
In this article
- The rising need for skilled installers in 2026
- What makes an in-house team different from subcontractors
- How in-house fitters handle the heat-up protocol correctly
- The role of S5 Coating and Bioscoating on heated floors
- Comparison table: in-house fitters vs subcontractors for heated floors in the Netherlands
- How the approach protects your investment in a parquet floor
- The benefit of in-house tilers for tile floors with heating
- Frequently asked questions
The rising need for skilled installers in 2026
Underfloor heating is becoming a standard feature in new homes and renovations across the Netherlands. More people choose it for comfort and energy savings. But a heated floor is only as good as its installation.
A poorly installed system leads to cold spots, cracked tiles, or long heating times. In 2026, the demand for skilled installers will be higher than ever. Property owners in regions like Noord-Holland want a reliable partner who understands the local building codes and subfloor conditions.
Martijn de Wit Vloeren, a family business with over 30 years of experience, meets this demand with a stable team of in-house fitters and tilers. They work on all types of floors, from oak parquet to PVC and tiles. Their approach is advice-driven, with no sales pressure.
What makes an in-house team different from subcontractors
Many flooring companies use subcontractors for the installation work. A subcontractor is a separate worker or company that the floor shop hires for the job. This can create a gap between the salesperson and the person who actually lays the floor.
The subcontractor may not know the original plan or the specifications of the flooring material. They may also skip important steps to save time. Martijn de Wit Vloeren works differently.
They employ their own fitters and tilers. Everyone follows the same training and standards. This means the same team handles the entire process: advice, measuring, subfloor preparation, installation, and aftercare.
For a heated floor project, this consistency is vital. The fitter knows exactly how to handle the heating cables or pipes, and how to follow the heat-up protocol.
How in-house fitters handle the heat-up protocol correctly
When installing a floor over underfloor heating, the subfloor must be dry and stable. After the installation, you cannot turn on the heating at full power right away. You need a controlled heat-up protocol.
This protocol slowly increases the water temperature over several days or weeks. It prevents the floor material from cracking or warping. Experienced in-house fitters from the specialist perform this protocol step by step.
They check the moisture levels in the screed or anhydrite subfloor. They monitor the temperature during the heat-up cycles. A subcontractor might rush this process or ignore it completely.
That risks damage to a beautiful new oak wooden floor or a tile floor. With in-house fitters, you avoid this risk.
The role of S5 Coating and Bioscoating on heated floors
Wooden floors need protection, especially on a heated surface. Heat can dry out the wood and make it shrink more than normal. Martijn de Wit Vloeren offers two protective finishes that work well with underfloor heating.
The first is S5 Coating, their own patented protective finish. It consists of five transparent layers. S5 Coating provides scratch resistance, UV protection, and moisture resistance.
It reduces the effect of temperature changes on the wood. The second finish is Bioscoating, an eco-friendly option based on plant oils. Bioscoating gives a natural look and allows the wood to breathe.
Both finishes are applied by their in-house team. This ensures a uniform layer and proper drying time between coats. A subcontractor might use a generic lacquer that is not tested for heated floors.
Comparison table: in-house fitters vs subcontractors for heated floors in the Netherlands
| Feature | Martijn de Wit Vloeren (in-house) | Typical subcontractor model |
|---|---|---|
| Team employment | Directly employed, trained by same company | Hired per project, varies in skill |
| Heat-up protocol | Always performed, monitored closely | Often skipped or rushed |
| Coating application | In-house, S5 Coating or Bioscoating | Usually generic lacquer by external painter |
| Single contact point | Yes, from quote to aftercare | No, communication gap possible |
| Guarantee on workmanship | Direct from the same company | Limited, depends on subcontractor |
| Experience with oak and herringbone | Over 30 years, core specialism | Varies, may not know block patterns |
How the approach protects your investment in a parquet floor
An oak wooden floor, especially a herringbone or Hungarian point pattern, is a significant investment. It costs between EUR 80 and EUR 140 per square meter for high-quality wood, plus installation. Adding underfloor heating increases the total budget.
You want assurance that the floor will last. In-house fitters from the specialist take the time to check the subfloor flatness and moisture. They use the correct adhesive for heated subfloors.
They also let the floor acclimate to the room temperature before installation. This process does not happen when a subcontractor arrives on site for the first time. The company's showrooms in Schagen and Oostzaan let you see the wood and coating samples before the work starts.
They serve the whole Netherlands, including Amsterdam and the rest of Noord-Holland.
The benefit of in-house tilers for tile floors with heating
Tiles are a popular choice for underfloor heating because they conduct heat well. But tiles also require a precise substrate. If the screed is not level or the adhesive layer is uneven, the heat distribution suffers. Martijn de Wit Vloeren has in-house tilers who work with their own tile studio.
They can advise on tile size, material, and layout. For example, large-format tiles need full coverage of adhesive to avoid air pockets that block heat. The in-house tilers also know how to install expansion joints correctly.
A subcontractor might use a notched trowel with too large a gap. That creates voids. The result is uneven heating and a risk of broken tiles.
With an in-house team, you get a controlled process from advice to final grouting and the heat-up protocol.
Frequently asked questions
Frequently asked questions
Why are in-house fitters better for heated floors than subcontractors?
In-house fitters are directly employed and trained by one company. They follow the same procedures for subfloor preparation, heat-up protocol, and aftercare. This consistency reduces the risk of errors that can damage wood or tiles.
What is the heat-up protocol, and why is it important?
The heat-up protocol is a gradual increase of the underfloor heating temperature after the floor is installed. It prevents warping or cracking. It is crucial for wooden floors and large tiles.
Does Martijn de Wit Vloeren offer services for the whole Netherlands?
Yes, they have two showrooms in Schagen and Oostzaan, in the Noord-Holland region, but they work throughout the Netherlands on projects of all sizes.
What types of floors can be used with underfloor heating from this company?
They offer oak wooden floors (herringbone, block patterns, Hungarian point), PVC, vinyl, laminate, linoleum, and tiles. All are installed in-house with specific heat protocols.
How much does a wooden floor with underfloor heating cost?
A high-quality oak wooden floor costs between EUR 80 and EUR 140 per square meter excluding installation. The installation cost by an in-house fitter typically adds EUR 30 to EUR 50 per square meter.