The average cost to plaster a room in the UK depends on whether the room only needs a skim coat or a full re-plaster. Google Search Console data for TradeQuoteAI shows strong search demand around room-by-room plastering costs, so this guide gives a clear answer first, then explains how plasterers should build the quote.
Quick Answer: Average Cost to Plaster a Room
In 2026, the average cost to plaster a room in the UK is £150-£250 for a small room skim, £200-£350 for a medium room skim, and £300-£450 for a large room skim. If old plaster needs hacking off, boarding, or repairs, expect £300-£600 per room.
Average Plastering Cost Per Room UK 2026
| Room / Job Type | Typical Cost | Time Needed |
|---|---|---|
| Small bedroom skim | £150-£250 | 0.5-1 day |
| Medium room skim | £200-£350 | 1 day |
| Large living room skim | £300-£450 | 1-1.5 days |
| Ceiling skim only | £100-£200 | 0.5 day |
| Full re-plaster with boarding | £300-£600 | 1.5-2.5 days |
| Patch repair and skim blend | £80-£180 | 2-4 hours |
What Changes the Price?
Two rooms with the same floor area can have very different plastering prices. The biggest cost drivers are surface condition, ceiling height, access, room shape, and whether the customer wants walls only or walls plus ceiling.
- Wall condition: Smooth, stable walls are cheaper to skim than cracked, blown, or damp-damaged walls.
- Ceilings: Ceiling work is slower and more tiring, especially over artex or old lath and plaster.
- Boarding: Adding plasterboard, dot and dab, beads, scrim tape, and fixings increases both material and labour cost.
- Location: London and the South East commonly sit 15-30% higher than northern regions.
- Access and protection: Tight staircases, occupied homes, furniture protection, and parking all add time.
Pricing note: A cheap room skim quote usually assumes the existing plaster is sound. If old plaster is loose or damp, the proper quote should include hacking off, treating the cause, boarding where needed, then skimming.
Cost to Skim a Room vs Full Re-Plaster
Skimming a Room
Skimming is a thin finish coat over an existing stable surface. It is the most common domestic plastering job and the cheapest way to get walls ready for painting. Most small and medium rooms can be skimmed in a day if prep is straightforward.
Full Re-Plastering
Full re-plastering is needed when the old surface has failed. The plasterer may need to remove loose plaster, fix plasterboard, apply beads and scrim tape, seal the surface, and skim. This is why full re-plastering can cost roughly double a straightforward skim.
Example Quote: Medium Bedroom Skim
| Item | Cost |
|---|---|
| Labour: 1 day plasterer | £240 |
| Multi-finish plaster: 2 bags | £24 |
| PVA, beads, scrim tape, sundries | £18 |
| Travel, protection, cleanup | £35 |
| Total quote | £317 |
This is a realistic fixed-price quote for a medium room where the walls and ceiling are already in reasonable condition. If the room needs boarding or heavy prep, the quote should move closer to £450-£600.
How Plasterers Should Build the Quote
- Inspect the walls: Tap for blown plaster, check damp, cracks, old artex, and badly patched areas.
- Measure the area: Estimate walls and ceiling separately. Deduct large windows and doors.
- Estimate labour: Work out whether it is half a day, one day, or a multi-day job.
- Add materials: Include plaster, PVA, beads, scrim tape, plasterboard, fixings, and waste.
- Add protection and cleanup: Dust sheets, masking, waste disposal, and cleanup should not be free.
- Quote a fixed price: Customers understand a room price better than a day rate.
TradeQuoteAI tip: Save your common room prices as templates. For example, small room skim, medium room skim, ceiling-only skim, and full re-plaster. Then adjust the quote after each site visit.
Frequently Asked Questions
How much does it cost to skim a room in the UK?
Skimming a room usually costs £150-£450. Small bedrooms are often £150-£250, medium rooms £200-£350, and larger living rooms £300-£450.
How much does a plasterer charge per day?
Most UK plasterers charge around £200-£280 per day, with experienced plasterers and London-based trades often charging £280-£350 per day. See the full plasterer day rate UK guide for regional rates.
How long does it take to plaster a room?
A standard room skim usually takes one day. Full re-plastering with boarding can take 1.5-2.5 days depending on prep, drying, room size, and access.
Related Guides
- Plastering Prices UK 2026 — Full guide to pricing plastering jobs
- Plasterer Day Rate UK 2026 — Day rates by experience and region
- How to Price a Bathroom Refit — Project pricing for tradesmen
- Signs You’re Undercharging — Protect your profit margin
The Bottom Line
The average cost to plaster a room in the UK is usually £150-£450 for skimming and £300-£600 for full re-plastering. For plasterers, the safest approach is to inspect the room, calculate labour and materials, then send a clear fixed-price quote that explains exactly what is included.
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