Fast, Free Quotes
Any Job Size
Next-Day Installation
Multiple Screeds One Visit
Your Liquid Screed Questions Answered
Screedflo flowing anhydrite liquid screed is a cement-free screed made from selected sharp sand, an anhydrite (calcium sulphate) binder, and water. It is supplied in liquid form, allowing it to flow easily and create a smooth, level floor surface suitable for residential and commercial applications.
Anhydrite screed is calcium sulphate-based. As it is a liquid, the finish is much smoother, flatter, and the screed is faster to install. It is a stronger product than traditional sand and cement screed, and so can be laid thinner. It conducts the heat from UFH pipes up to 5 times more effectively.
Flowing screed can be used for almost any internal application to provide a level, flat, smooth surface to an SR2 finish, for all types of floor coverings, either domestic or commercial. Please see the Our Products page on our website.
Anhydrite screeds are ideal for application over both electric and water under floor heating systems because of the flowable consistency that fully encompasses the heating pipes. Flowing screeds have excellent thermal conductivity and minimal thermal expansion. Projects with underfloor heating will benefit from significant savings in energy costs by using anhydrite screed.
Flowing screeds are much stronger than traditional screeds and do not require reinforcement as they do not curl, and shrinkage is extremely low, minimising the risk of cracking. Joints are required less frequently than with traditional screeds, but are recommended through doorways and between areas of heated and non-heated screeds. Check out our preparation advice.
Use our online screed calculator to calculate the volume of liquid screed required by entering your room dimensions.
We operate in East Anglia, the South East and the Home Counties. For larger jobs outside these areas please telephone us as we may still be able to deliver to you.
Our vehicles can access most sites that a concrete lorry can access, but must always be on a hard standing area. We can pump the material 100-150 metres from wherever the Screedflo vehicle is parked. We will make a site visit before the installation date to check access, water supply, and that the preparation of the floor is suitable for liquid screed.
You will need:
- Safe hard standing for the Screedflo vehicle
- A mains pressure water supply (we supply hoses)
- A wash-out area or lined skip
These details are checked during the site visit. You will also need to prepare your area for screed installation. See our preparation guidance for more information.
On arrival, our team will:
- Confirm datum and critical floor levels using a laser
- Set up tripods and pumping equipment
- Begin batching the selected Screedflo product on site
Pumping typically takes around 8 minutes per m³. Once complete, the system is washed out, and the delivery note is signed.
No. Liquid screed will not seep through UFH clip holes. Any splits in the membrane should be sealed with waterproof gaffa tape before installation.
A 75 mm screed is not required. Anhydrite screeds are designed to be laid at 40 mm on insulation or 50 mm with UFH. Thicker screeds take longer to dry and often perform worse than increasing insulation thickness.
All screeds expand slightly as they dry. Edge expansion strips allow controlled movement and help prevent cracking, even without underfloor heating.
No. Screedflo liquid screed does not require reinforcement. Mesh provides no benefit and can make installation more difficult.
Yes. We recommend Screedflo Extra Strength. Once dry, it can be protected with an industrial resin coating and provides superior strength compared to traditional screeds.
Need further help?
Fast, Flawless Liquid Screed Installation
With 20 years of experience in the industry, Screedflo offers a range of high-quality liquid screed services tailored to your specific needs.