The in-screed water underfloor heating system is one of the most efficient and long-lasting heating solutions for modern homes and commercial properties. By embedding the heating pipes directly into the floor screed, this system ensures even heat distribution, excellent energy efficiency, and compatibility with a wide range of floor finishes including tiles, stone, laminate, vinyl, and carpet.

Benefits of In-Screed Underfloor Heating

In-screed underfloor heating provides superior comfort by delivering gentle, consistent warmth across the entire floor surface. The screed layer stores and radiates heat evenly, eliminating cold spots and creating a stable indoor temperature. Operating at lower water temperatures than traditional radiators, this system reduces energy consumption and running costs, offering a sustainable and efficient way to heat your property.

Its design flexibility allows it to work seamlessly with most types of floor coverings, giving homeowners and builders complete freedom over interior finishes. Once installed, the system is fully concealed within the screed, offering a durable, maintenance-free solution that lasts for decades. Because installation must take place during the construction or renovation stage, careful design and planning are crucial. Our team of specialists provides full technical support to ensure your system performs at its highest efficiency.

High Output In-Screed Systems

Our high-output underfloor heating systems are installed at 150mm pipe centres, making them ideal for areas with greater heat loss or for projects that use renewable energy sources such as air source or ground source heat pumps. Each single-room kit can heat one area independently or multiple zones together at the same temperature, covering spaces up to 100 square metres.

Floor Finish Recommendations

To achieve optimal performance, selecting the right floor finish is essential. For carpeted areas, the combined carpet and underlay should not exceed a 2.5 tog rating. Engineered wood and laminate floors should be kept to a minimum thickness to maintain efficient heat transfer. When installing tiles or stone, it is advisable to include a decoupling layer such as Ditra Mat to accommodate varying expansion rates. Vinyl and LVT floors require a smooth, level subfloor before installation. When using wood-based flooring, it is vital to include a remote floor sensor to limit the floor temperature to 27°C and prevent damage.

What Is an In-Screed Water Underfloor Heating System?

An in-screed water underfloor heating system is a hydronic (water-based) heating method that circulates warm water through a series of pipes embedded within the floor screed. The heat from the pipes is absorbed by the screed, which acts as a large thermal mass, storing and releasing heat gradually for steady, energy-efficient warmth.