Preparation

Floor Levelling & Screeding

Subfloor levelling, self-levelling screed and floor preparation to create a perfect flat base for any new floor covering. Compare up to 3 free quotes — no obligation.

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Floor Levelling & Screeding

A level, solid subfloor is the foundation of any quality flooring installation. Uneven floors cause hollow spots, movement in click joints, premature wear and — in worst cases — flooring failure. Self-levelling compound is the most common solution for concrete floors: it flows to fill low spots and creates a perfectly flat surface within hours.

For timber floors, squeaky or uneven boards should be screwed down and high spots planed. For larger unevenness, a plywood overlay provides a flat, stable base. Floor levelling is often combined with damp-proof membrane application on ground floors before any wood-based covering is laid.

What’s involved

  • ✓ Subfloor survey with straightedge and level
  • ✓ Identification of high spots, low spots and damp
  • ✓ Application of primer before self-levelling compound
  • ✓ Pouring and spreading self-levelling compound
  • ✓ Curing time (typically 24–48 hours before flooring)
  • ✓ Plywood overlay installation where required

Typical costs

£5–£20 per m² for self-levelling compound and labour, depending on depth required. Plywood overlay costs £8–£15 per m² fitted.

Prices vary by region, subfloor condition and product choice. Compare 3 quotes for the most accurate price for your specific job.

FAQs — Floor Levelling & Screeding

Do I need floor levelling before my new floor?
Most flooring manufacturers require the subfloor to be flat within 3mm over a 1.8m span. If your floor exceeds this, levelling is required to avoid problems after installation. Your fitter will check this before starting.
How long does self-levelling compound take to dry?
Light foot traffic is usually possible after 2–4 hours. Most self-levelling compounds are ready for flooring installation after 24 hours, though some specialist products require 48 hours or more.
Can I level a timber floor?
Yes. Minor unevenness can be corrected by screwing down boards and planing high spots. More significant unevenness is addressed with a plywood overlay, which also provides a solid, uniform base for floating floors and LVT.
What is the difference between screed and self-levelling compound?
Screed is a sand-cement mix, typically 50–75mm thick, used for new builds and large areas. Self-levelling compound is a fast-drying liquid product used for thin corrections (up to 20mm) on existing subfloors. Both create a flat surface for floor coverings.
How much does floor levelling cost?
Self-levelling compound work costs £5–£20 per m² depending on depth. Plywood overlay runs £8–£15 per m² fitted. Get 3 quotes for an accurate price for your specific subfloor.
What customers say
★★★★★ 4.9 / 5 from verified customers
★★★★★

“Had three quotes within a day for our new kitchen floor. The fitter we chose laid the LVT perfectly — tight joins, level finish, no lippage at all. Really impressed with the whole process.”

Claire B. Surrey
★★★★★

“Used the service for engineered wood throughout the ground floor. Had local flooring fitters contacting me the same day. Work was done to a very high standard and the quote was very competitive.”

Mark T. Manchester
★★★★★

“Getting quotes for our full house carpet was so easy. The fitter was punctual, moved the furniture, took care with the gripper rods and the finished result looks fantastic. Great value.”

Janet R. Bristol
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