If you’re new to flow screed or considering using it on your next project, it’s normal to have questions. From choosing the right screed pump to understanding how flow screed behaves on site, getting the basics right can save you time, money, and headaches later on.
At CES Hire, we’ve spent over 40 years supporting screeding professionals with reliable equipment and straight-talking advice. This beginner’s guide breaks down what you need to know about flow screed and the role screed pumps play in achieving a quality finish.
Flow screed, also known as liquid screed, is a self-levelling flooring material commonly used in residential, commercial, and industrial projects. Unlike traditional sand and cement screed, flow screed is pumped into place and naturally levels itself, reducing manual labour.
Key benefits of flow screed include:
Faster installation over large areas
Excellent surface finish with minimal levelling
Improved coverage around underfloor heating pipes
Reduced drying shrinkage when installed correctly
Because of its fluid consistency, flow screed relies heavily on the right pumping equipment and correct site preparation.
Screed pumps are essential for transporting liquid screed efficiently from the mixing point to the pour location.
Using a screed pump allows you to:
Reduce manual handling and labour fatigue
Improve speed and productivity on site
Maintain control over flow and placement
For larger projects or sites with restricted access, a screed pump is not just helpful – it’s essential.
Choosing the right liquid flow screed pump depends on the material being used and the demands of the job.
Common options include:
Continuous screed pumps – Ideal for flowing screeds and high-output work
Grout pumps – Suitable for finer materials and smaller-scale pours
Diesel, three-phase, 240v or 110v electric pumps – Selected based on site power availability
At CES Hire, we help you match the pump to your specific screed type and site conditions, ensuring reliable performance throughout the pour.
Even the best screed pump won’t compensate for poor preparation.
Before pouring flow screed, you should:
Ensure the subfloor is clean and sealed
Install edge insulation and movement joints correctly
Pressure-test underfloor heating systems
Check levels and datum points
Proper preparation helps the screed flow evenly and reduces the risk of cracking, laitance, or uneven thickness.
Consistency is critical when working with flow screed. Too wet, and strength can be compromised. Too dry, and the screed won’t self-level as intended.
Following manufacturer guidelines precisely
Using calibrated mixers and pumps
Carrying out regular flow tests during the pour
A simple flow test kit can help you confirm the screed is within tolerance, protecting both the finish and long-term performance of the floor.
If you’re new to flow screed, watch out for these common pitfalls:
Using the wrong pump for the material
Skipping flow testing during installation
Poor hose management leading to segregation
Inadequate curing and protection after the pour
With the right guidance and equipment, these issues are easily avoided.
For many contractors, hiring a screed pump is more cost-effective than buying.
Access well-maintained, up-to-date machinery
Avoid storage and servicing costs
Choose the right machine for each project
Get expert support when you need it
At CES Hire, every machine is serviced and ready for site, giving you confidence from day one.
Flow screed offers clear advantages, but success starts with understanding the process and using the right screed pump for the job. With proper preparation, accurate flow control, and dependable equipment, even beginners can achieve professional results.
If you’re planning a flow screed project and want advice on pumps, mixers, or testing equipment, our experienced team is here to help.
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