Underfloor Heating Installationin Milngavie & Bearsden

Screed systems for extensions and new floors

Screed systems are the standard choice for extensions and any project where the floor is being built from the ground up, since pipework is laid over insulation and then covered with a poured screed, which stores heat and releases it evenly across the floor. This approach needs sufficient floor build-up height to be planned in from the start of the build, which is why underfloor heating is best decided early in an extension project, not added as an afterthought once floor levels are set.

Screed floors have significant thermal mass, meaning they take longer to heat up but also hold heat for longer once warm, which suits rooms used consistently through the day such as kitchens and open-plan living spaces.

Low-profile retrofit systems for renovations

For bathroom and kitchen renovations where digging out the full floor isn't practical, low-profile overlay systems fit within a much thinner build-up, sitting directly beneath tiles or other floor coverings. These systems respond faster than screed because there's less thermal mass, which suits bathrooms where quick warm-up before use matters more than sustained background heat.

Retrofit systems still need careful planning around door thresholds and floor level transitions to adjoining rooms, since even a low-profile system adds some height to the finished floor.

Connecting to the existing heat source

Underfloor heating typically runs at a lower flow temperature than radiators, so it's connected via a manifold with a blending valve that mixes the boiler's flow water down to the correct temperature for the underfloor circuit, while radiators elsewhere in the property continue running at their normal temperature.

Where a single room, such as a bathroom, is being fitted with underfloor heating within a property that otherwise uses radiators, that room is set up as its own zone so it can be controlled independently without affecting the rest of the heating system.

• Screed systems: best for new extensions and ground-up floor builds
• Low-profile retrofit systems: best for renovations with limited floor height
• Blending valve required to reduce flow temperature for underfloor circuits
• Independent zoning recommended for single-room retrofits alongside radiators

Practical considerations for Milngavie and Bearsden properties

Many properties across Milngavie and Bearsden being extended or renovated have solid concrete or suspended timber ground floors, each of which is approached differently: concrete floors often suit a screed system laid over insulation boards, while suspended timber floors can sometimes take a specific timber-floor underfloor heating system designed to sit between joists.