Underfloor Heating & Screeding
Specialist UFH Service

Underfloor Heating & Screeding

Send us your plans for a quote and receive a full design service. We design from your GA plans and known heat source, then deliver the complete UFH and screeding package.

Why Choose CSC for Underfloor Heating?

One team handles design, UFH installation, and flowing screed, keeping your programme on track.

Full Design Service

Send us your plans and we design the complete system from your GA drawings and known heat source.

Optimal Heat Transfer

Flowing screed fully encapsulates heating pipes, eliminating air pockets and maximising thermal conductivity.

Faster Programme

Coordinated installation means less time on site. UFH and screed delivered as one seamless operation.

Precision Depths

Accurate screed coverage over pipes at the correct depth for maximum efficiency and compliance.

How It Works

Send us your plans for a quote and receive a full design service.

1

Send Us Your GA Plans

Email your general arrangement plans along with details of your known heat source to [email protected].

2

Full Design Service

We design the complete UFH system including pipe layouts, circuit zones, manifold positions, and flow rates, all tailored to your project.

3

Professional Installation

Our team installs the UFH system to the approved design, including insulation, pipework, manifolds, and pressure testing.

4

Flowing Screed Application

We complete the package with flowing screed that fully encapsulates the pipework, ready for your final floor covering.



PROJECT HIGHLIGHT

Arundel Great Court

Over 20,000m2 of underfloor heating, designed, installed, and
screeded by CSC.

20,000

m2 of UFH Installed  

Full

Design & Install Package  

London

Prestigious Riverside  

A landmark residential development on the South Bank of the Thames. CSC delivered the complete underfloor heating and screeding package across this prestigious scheme, demonstrating our capability to deliver at scale on the most demanding projects in London.

Suitable for All Project Types

From single properties to 200 unit developments.

New Build Homes

Full UFH systems for new residential builds, designed for efficiency and integrated with our screeding service.

Multi-Unit Developments

Volume installations across apartment blocks and housing developments with programme certainty.

Extensions & Renovations

Retrofit underfloor heating into extensions, conversions, and renovation projects.

Commercial Fit-Outs

UFH systems for office spaces, retail units, and hospitality venues.

Education & Healthcare

Even heat distribution with no exposed radiators. Ideal for schools, nurseries, and care homes.

Heat Pump Compatible

UFH works at lower water temperatures than radiators, making it the perfect partner for heat pumps.

WiFi Enabled Controls

We offer WiFi enabled controls as part of our underfloor heating package. Controls are issued to the M&E contractor to install, or they can source controls separately if preferred.

Frequently Asked Questions

Common questions about underfloor heating and screeding, answered by The Screed Scientist.

The best screed for underfloor heating is typically liquid or flowing screed (such as anhydrite or gypsum-based screed) because it fully surrounds the heating pipes and provides excellent thermal conductivity. This allows heat to transfer more efficiently and evenly across the floor. Fibre-reinforced sand and cement screed is also suitable but may not perform as efficiently as liquid screed.

Yes, traditional sand and cement screed can be used with underfloor heating, but it should include fibre reinforcement to reduce the risk of cracking. It also requires careful curing and a gradual heat-up process to avoid thermal stress. While it works well, liquid screed is often preferred for better heat performance.

The recommended thickness depends on the type of screed used. For liquid screed, the total thickness is usually around 45–55mm, with approximately 25–40mm covering the pipes. For traditional sand and cement screed, the total thickness is typically 65–75mm, ensuring adequate coverage above the heating pipes for strength and heat distribution.

Underfloor heating should not be turned on immediately after installation. Liquid screed usually allows commissioning after about 7 days, while sand and cement screed may require 21–28 days. The system should then be heated gradually, increasing the temperature slowly each day to prevent cracking.

Drying times vary depending on screed type and site conditions. Liquid screed may take 3–6 weeks before floor coverings can be installed, while sand and cement screed often requires 6–8 weeks. Moisture testing is essential before laying wood, vinyl, laminate, or other moisture-sensitive finishes.

Cracking can occur due to rapid drying, turning the heating on too early, lack of expansion joints, or incorrect screed mix. Small hairline cracks are common and often cosmetic, but larger cracks may indicate movement or thermal stress and should be inspected professionally.

If a zone is not heating properly, it could be due to trapped air in the pipes, a faulty thermostat or actuator, flow imbalance at the manifold, or a pump issue. Start by checking the thermostat settings and ensuring the system is properly balanced. If the problem continues, a heating engineer should inspect the system.

Send Us Your Plans Today

Send us your GA plans and heat source details for a quote and receive a full design service. From single properties to 200 unit developments.

Ready to Guarantee Your Programme?

Get a detailed quote with mobilisation timeline, method statement, and programme integration plan.

Commercial Fit-Out Projects

Residential Fit-Out Projects