How Much Does It Cost to Plaster a Room?

Plastering a room is one of the most important steps in any renovation, as it creates smooth, durable walls and ceilings ready for painting or wallpaper. Costs vary depending on room size, surface condition, ceiling height, and the type of plaster finish required.

Estimated Costs by Room Size

For a standard bedroom around 3 metres by 3 metres, plastering the walls alone typically costs between £500 and £900. Including the ceiling usually increases the price to £700–£1,200. Larger living areas can range from £900 to £1,800, while unusually shaped or high-ceilinged rooms can push costs higher.

• Small box room: Takes less time and plaster than larger areas.
• Large open plan areas: Often feature alcoves, bay windows, or vaulted ceilings which increase complexity.

Key Factors Affecting Price

1. Surface Condition

If walls are in good condition and only need a skim coat, costs remain lower. Skimming is a thin finishing layer applied over existing plaster or plasterboard. However, if walls are damaged, they may need stripping and base coats, which increases the price.

2. Ceilings

Working overhead slows progress and increases physical effort. High ceilings may also require scaffolding or stilts. For more details, see our guide on ceiling plastering costs.

3. Access and Layout

Empty rooms allow plasterers to work efficiently. Furniture or fixtures must be covered or moved, which can add to the labour time. If you are planning a larger project, you might want to look at the cost to plaster a whole house.

Materials and Labour

Materials usually include finishing plaster, bonding coats, scrim tape, and angle beads. Regional rates also play a part; urban areas like London generally have higher day rates than rural areas.

Conclusion

Investing in professional plastering ensures a long-lasting, uniform surface. When budgeting, always request a detailed written quote that outlines preparation and waste removal to avoid surprises.