Traditional lime plaster
Lime Plastering Cost UK: 2026 Price per m²
Estimate UK lime-plastering cost from measured walls and ceilings, then check coat build-up, substrate, curing and heritage scope.
Current UK specialist evidence places traditional lime plaster around £50–£100 per m². In the site's measured 4 m × 3 m room example, walls and ceiling with 10% openings and a sound background produce about £2,110–£4,220 before hacking off, lath repair, damp diagnosis, detailed mouldings, difficult access, decoration or VAT.
What changes the result?
A useful calculation starts with the physical scope and the written commercial terms. These are the factors to make explicit:
- Measured net wall and ceiling area
- Existing substrate and compatible preparation
- Lime binder and coat build-up
- Laths, beads, details and repairs
- Curing, protection, access, waste and VAT
Use one scope for every quote
Give each business the same information and ask it to resolve the same boundaries. That makes the totals more comparable and exposes work left as an allowance or exclusion.
- Identify the existing wall and plaster
- Ask for the complete coat specification
- Separate removal and substrate repairs
- Agree curing, protection and decoration boundaries
Measure the plastered face, not the floor area
Measure each wall and ceiling face, subtract only meaningful openings and group areas with the same substrate and specification. The prefilled 4 m × 3 m example creates about 42.2 m² across the four walls and ceiling after a 10% opening allowance.
At the current £50–£100 per-m² planning band, that produces roughly £2,110–£4,220 before additions. Replace every dimension and condition assumption with the actual room.
Specify the lime system before comparing prices
Lime is not one interchangeable finish coat. Existing masonry, previous impermeable coatings, damp sources, salts, laths, background suction and the required finish influence the binder, aggregate, coat build-up, reinforcement and curing method.
Ask the specialist to state removal, preparation, number and thickness of coats, materials, beads and details, curing and protection. A cheap gypsum skim is not a like-for-like alternative when the building fabric requires a compatible breathable system.
Questions people ask
How much does lime plaster cost per square metre in the UK?
A current specialist planning range is about £50–£100 per m². Substrate repair, coat build-up, laths, details, access and curing determine the actual quote.
Why is lime plaster more expensive than gypsum?
It commonly needs compatible materials, specialist labour, multiple coats and controlled curing. The relevant comparison is the complete system for the building, not only the finish rate.
Does every old house need lime plaster?
Not automatically. Existing fabric, moisture movement, previous work and heritage requirements need assessment before selecting a system.
Does the lime-plaster price include hacking off old plaster?
Not unless the quotation says so. Require removal, disposal, background repair, laths, coats, curing, decoration and VAT to be listed separately.
Method and sources
The model is a planning tool, not a quotation. These are the published sources used for this page; read the full assumptions before relying on a range. Source review: 20 September 2026.
- SPAB lime guidance
Traditional-building material compatibility, movement and moisture guidance; reviewed 20 September 2026.
- Homebuilding plaster-types guide
Current £50–£100 per-m² specialist lime-plaster observation and coat context; reviewed 20 September 2026.