Self-levelling vs screed Sydney — which should you use?
Use self-levelling compound for thin corrections under 30 mm and tight flatness tolerances; use sand-cement screed for deeper builds, falls to drains, or external balconies.
Self-levelling compound and sand-cement screed solve different problems — and using the wrong one is the most common cause of failed floors in Sydney. This guide explains where each is appropriate, what they cost, and how cure time and finish compatibility differ.
What this service delivers
- Decision matrix by depth, finish, and substrate
- Cost and cure-time comparison
- When to combine both for best result
Frequently asked questions
- When is self-levelling the right choice?
- Self-levelling is best for thin corrections (3–30 mm), tight flatness tolerances, and indoor floors with no falls — typical apartment refurbishment work.
- When is sand-cement screed required?
- Screed is required for deeper builds (over 30 mm), creating falls to drains, balconies and wet areas, or where heavy loads need a structural underlayment.
- Can you use both on the same job?
- Yes — many Sydney projects screed first to establish depth and falls, then self-level the top to a finish-ready flatness.
- Which is cheaper?
- Per-m², screed is usually cheaper for deep pours, while self-levelling is cheaper for thin corrections because it places and levels itself with less labour.