What skim plastering can cost and what preparation can turn a simple skim into a larger job.
Applies to: UK homeowners; substrate condition is critical. · Last checked: 4 October 2026
Key points
• Checkatrade’s calculator currently uses about £24 per m² as a skim-plastering budgeting figure.
• The condition and suction of the background matter as much as room size.
• Cracks, blown plaster, boarding and damp should be addressed rather than hidden under a skim.
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Budgeting figure
Checkatrade’s current plastering calculator uses about £24 per m² for skim plastering. Its broader examples show that room and ceiling totals vary substantially, so use the per-metre figure only as an early budget check.
Preparation questions
• Is the existing plaster sound and well bonded?
• Are cracks stable or do they need investigation?
• Is plasterboard required anywhere?
• Are beads, bonding or patch repairs included?
• Has the source of any damp been fixed first?
Fresh plaster and decorating
Agree who is responsible for drying time, mist coating and final decoration. Rushing finishes onto damp plaster can create avoidable defects.
Sources and methodology
Pricing figures are third-party UK market budgeting references, not BuildPair prices or guaranteed local quotes. Legal and safety points are linked to current official guidance. Check the current source and your project circumstances before acting.
Related BuildPair guides
BuildPair provides general information and signposting, not legal, structural, gas, electrical or building-control approval. Requirements and prices vary by location, property and scope.
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