Floor screed is a cement-based mixture, commonly made from sand and cement, that is applied over a structural floor to create a level and durable surface. In many cases, fibres or additives are included to improve performance. The main purpose of screed is to prepare the floor for final finishes such as tiles, wood flooring, vinyl, or carpet. In some contemporary buildings, screed may even act as the final floor surface when polished or sealed. Essentially, it helps correct irregularities in the concrete slab beneath.
What floor screed is used for
Levelling uneven surfaces
Screed fills dips and corrects uneven areas so that the finished flooring sits flat and secure.
Providing a stable base
It creates a strong surface that supports floor coverings and reduces the risk of cracking or movement.
Encasing underfloor heating systems
Screed surrounds heating pipes or mats and spreads heat evenly through the floor structure. Flowing screeds are particularly efficient for this purpose.
Improving thermal and acoustic performance
Floating screeds can be installed over insulation layers or damp-proof membranes to help meet UK building standards for energy efficiency and sound reduction.
Heavy-duty and decorative uses
Some screed systems are reinforced for industrial environments, while polished screed can provide a stylish finish in commercial spaces.
Common screed types
Sand and cement screed
A traditional option that is installed manually and widely used for many types of flooring.
Liquid screed
A flowing screed pumped into place that creates a very smooth surface.
Self-levelling compounds
Thin cement-based products designed to correct minor imperfections before floor finishes are applied.
Why it matters
Correct screeding helps protect the finished floor and ensures compliance with British Standards such as BS 8204. Floor Screeding Surrey offers experienced screeding services throughout Surrey with reliable advice and clear pricing.