How to Price a Full House Plaster: Rooms, Preparation and Skim Labour Guide

Quick Answer: A full house re-skim plaster in 2026 costs £3,500–£6,500 for a typical UK 3-bed semi and £5,500–£9,500 for a 4-bed detached, priced room-by-room rather than as a single lump. Per-room rates run from £180–£280 for a small bedroom skim, £280–£420 for a medium bedroom, £420–£650 for a lounge or large bedroom, and £350–£550 for a kitchen with cupboards and cuts. A skilled plasterer's day rate is £220–£380 plus a labourer at £160–£220, with the system based on BS EN 13279-1 gypsum products. Drying time before mist-coat painting is 7 days minimum for a re-skim, 21–28 days for a full re-plaster.

Summary

Whole-house plastering is priced room-by-room, not by total surface area, because the labour-per-m² differs sharply between rooms. A small bedroom with four flat walls and a flat ceiling plasters quickly. A kitchen with built-in units, tiled splashbacks, electrical sockets every 600 mm, and cuts around boiler housings takes the same plasterer 50% longer per m² of finished surface. A bathroom around a bath, basin, WC and shower screen is similar. Quotes that price by total m² rather than by room type consistently under-cost the kitchen and bathroom and over-cost simple bedrooms.

The first decision is re-skim versus full re-plaster. A 2-coat re-skim (sealing existing plaster with PVA, then 2-coat finish skim 2–3 mm total) is the standard treatment for sound existing plaster with minor surface damage. A full re-plaster (hack off to brick, render undercoat, scrim, finish skim 12–15 mm total) is required where existing plaster is blown, where dampness has compromised it, or where lime plaster is being replaced with gypsum on solid walls — a controversial conversion that's often the wrong call but commonly specified. Re-skim is roughly 60–70% the price of full re-plaster.

The single most common quote omission is preparation time. Stripping wallpaper, applying scrim tape to board joints, fitting beads to external corners, and PVA-sealing dusty surfaces accounts for 20–30% of the labour on a re-skim job. Quotes that show only "skim coat" as a unit rate either include this in the rate (acceptable but should be stated) or skip it (and the homeowner gets a surprise extra mid-project). A clean quote shows preparation as a separate line.

Key Facts

Quick Reference Table

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Room type Re-skim Full re-plaster Labour days Material cost
Small bedroom (single, 8–12 m²) £180–£280 £320–£480 0.5–1 day £25–£55
Medium bedroom (double, 12–16 m²) £280–£420 £450–£680 1–1.5 days £40–£75
Large bedroom (16–24 m²) £380–£580 £600–£950 1.5–2 days £55–£110
Lounge / large reception (20–28 m²) £420–£650 £680–£1,100 1.5–2.5 days £60–£130
Kitchen (cupboards, cuts) £350–£550 £550–£900 1.5–2 days £45–£90
Bathroom (around fittings) £280–£480 £450–£780 1–1.5 days £40–£75
Cloakroom WC £180–£280 £280–£420 0.5–1 day £20–£40
Hallway only (ground floor) £220–£380 £380–£580 1–1.5 days £35–£70
Stairs and landing £280–£480 £450–£700 1–1.5 days £45–£85
Ceiling-only per room £120–£280 £200–£420 0.5–1 day £20–£55
Whole 3-bed semi £3,500–£6,500 £6,500–£11,500 12–18 days £450–£900
Whole 4-bed detached £5,500–£9,500 £9,500–£17,000 18–28 days £680–£1,400

Detailed Guidance

Re-Skim Versus Full Re-Plaster: Which to Quote

The starting point is the condition of existing plaster. Tap-test every wall — sound plaster gives a hard, consistent ring; blown plaster sounds hollow. Visual inspection adds: hairline cracks (often acceptable, fillable in skim), large cracks following a pattern (structural, not a plastering fix), bulging or detached areas (must come off), salt staining (damp problem, fix damp first).

Re-skim suits: sound underlying plaster with minor surface defects, painted-over walls, lined paper jobs, board joints showing through, decorative artex (after asbestos test).

Full re-plaster suits: blown plaster across more than 30% of a wall, post-damp remedial work, removing lime plaster (where the homeowner has approved gypsum replacement against heritage advice), pre-1900 properties where original lime is failed and not being replaced like-for-like.

For pricing, the cost ratio is roughly:

The difference is mostly labour — full re-plaster is hack-off plus render coat plus scrim plus skim, against just PVA plus skim. Materials roughly double; labour roughly doubles.

Per-Room Pricing — Why Kitchens and Bathrooms Cost More

A 12 m² floor-plan room has approximately 30–35 m² of wall plus 12 m² of ceiling. A skilled plasterer skims 25–35 m² in a day on simple work; in a kitchen with cuts around units, sockets, taps, boiler housing, extractor, and tiled splashback returns, that drops to 15–20 m² per day. The same total surface area takes 50–70% more labour.

For pricing kitchens and bathrooms, the per-m² rate effectively rises to £22–£36 per m² for re-skim against £14–£20 for a simple bedroom. A quote that shows the same per-m² rate across all rooms is either over-pricing the bedrooms to subsidise the kitchen (ethically questionable) or under-pricing the kitchen (often the reality, leading to extras requested mid-project).

Preparation: PVA, Scrim, Beads, Mesh

The preparation step is the difference between a £280 re-skim and a £420 re-skim on the same room. Honest pricing breaks it out.

PVA bonding — sealing existing plaster, plasterboard, or recently re-bonded patches before skim. Diluted 4:1 first coat (sealer), 3:1 second coat (bonding) for porous walls. £8–£14 per litre; covers 6–8 m² per litre. £15–£35 per room of materials, 1–2 hours labour.

Scrim tape — 90 mm self-adhesive fibreglass mesh tape over plasterboard joints and over hairline cracks. £4–£8 per 90 m roll; one roll typically covers a small bedroom, two for a medium. 30–60 minutes per room.

Angle beads — galvanised metal corner beads on external corners. Required for any plastered external corner (where two walls meet outwards). £2.20–£4.50 per 2.4 m length; 4–6 lengths per typical room. 30–45 minutes per room to fit and bed.

Stop beads — at terminations (where plaster meets a non-plastered surface — door reveal, window reveal, around fitted units). £2.20–£4.50 per 2.4 m length.

Bell-cast beads — at the base of a wall where plaster meets DPC level. £3–£6 per 2.4 m length. Used where the plaster terminates above a damp course.

Expanded mesh patches — over significant cracks or where dissimilar substrates meet (e.g. timber plate to brick wall). £6–£14 per m² of mesh. Used in problem areas.

For a typical 3-bed semi re-skim, prep materials total £80–£160. Prep labour adds 1.5–2.5 days across the project — at £200/day that's £300–£500 of labour bedded into the quote.

Dot-and-Dab Versus Wet Plaster

Where existing walls need replacement or new walls are being added (after stud removal, after damp remedial works, on new partitions), the choice is dot-and-dab plasterboard versus traditional wet plaster.

Dot-and-dab — plasterboard fixed to wall with adhesive dabs, then 2–3 mm finish skim. Faster (about 50% the labour of wet plaster), warmer (small air gap acts as thermal break), accepts insulated boards (PIR-backed) for SAP improvements. £24–£42 per m² supplied and finished. Standard for masonry walls in modern UK practice.

Wet plaster — bonding coat (8–11 mm) plus finish skim (2–3 mm). Better for irregular walls, period property where a flat finish is undesired, areas where future fixings will be made (kitchen units, heavy shelving need wet plaster or specific dot-and-dab fixings). £28–£48 per m² supplied and finished.

For pricing a full house, modern practice is dot-and-dab on new walls and re-skim on existing. Wet plaster is reserved for problem walls or specific heritage requirements. See the technical method for dot-and-dab board fix.

Materials: BS EN 13279-1 Gypsum Products

UK plastering material is dominated by British Gypsum's Thistle range, conforming to BS EN 13279-1. The relevant products:

Material cost for a 3-bed semi re-skim is £450–£900 — small relative to labour.

Drying Time Before Painting

The most-broken rule on whole-house plaster jobs is drying time. Painting too soon causes the mist coat to fail, leaving patchy finish that needs sanding back and recoat.

Re-skim minimum dry time before mist coat — 7 days at 18–22°C with adequate ventilation. Walls should be uniform pale pink (not patchy dark pink/brown). Brown patches indicate residual moisture; mist coat will fail.

Full re-plaster minimum dry time before mist coat — 21–28 days. The bonding coat behind holds significant moisture for weeks.

Full painted system (mist + 2 finish coats) — 3–4 weeks total for re-skim, 6–8 weeks for full re-plaster. Vapour-permeable mist coats (1 part emulsion to 4 parts water) are mandatory; full-strength emulsion as the first coat will lift.

For programme purposes, a whole-house plaster job moves directly into decoration only if the schedule allows the dry time. Most projects sequence plaster → 2-week wait → mist coat → 1-week wait → finish coats. Faster sequencing is possible with dehumidifiers (can halve the dry time) but adds £30–£60/day in hire.

Low-VOC Plaster Products

Plaster itself is low-VOC by nature (gypsum is inert). PVA bonding agents are typically water-based and low-VOC. Concerns are:

For homeowners with sensitivities or for green-build specifications, lime plaster systems are a fully natural alternative — see lime plaster for solid wall and heritage properties.

Programme: A Typical 3-Bed Semi Re-Skim

Day 1: Sheet up, strip wallpaper from one room, PVA, beads, scrim Day 2: Skim coat first room; meanwhile labourer preps next room Day 3: First room dry-out; skim second room; third room prep Day 4–10: Roll through bedrooms one at a time Day 11–13: Kitchen + bathroom (slower pace per m²) Day 14: Hall, stairs and landing (always last — heaviest traffic) Day 15: Final cuts, snag, clean

Total: 14–18 working days for a typical 3-bed semi re-skim including 1–2 days' weather contingency. Two-plasterer crews complete in 8–11 days at higher cost per day but lower total cost per m² due to faster mix-and-apply cycles.

Cost to Plaster a House — Consumer Quick View

For a homeowner asking "how much does it cost to plaster a 3-bed house in 2026":

Add £200–£400 per room for ceiling-only work where existing walls are being kept. Add £350–£700 per room where solid wall insulation is being installed under the skim (insulated plasterboard increases material cost). Subtract 20–30% if doing one room at a time over months — but expect overall total cost to rise 15–25% due to mobilisation.

Frequently Asked Questions

How long after plastering can I paint?

Re-skim: 7 days minimum before mist coat (1:4 emulsion:water), then 24–48 hours before finish coats. Full re-plaster: 21–28 days before mist coat. The walls must be uniform pale pink before painting — any brown patches mean residual moisture and the mist coat will fail.

Do I need to be out of the house during a full re-plaster?

Most homeowners stay in but seal off finished rooms with dust sheets. Plastering is dusty (especially during prep) but not toxic. A whole-house full re-plaster typically requires the kitchen to be unusable for 1–3 days when that room is being done; the rest of the house is liveable throughout. Re-skim work is much less disruptive — typically 1 day per room.

What's the difference between skim and plaster?

"Plaster" in trade terminology is the undercoat (bonding or hardwall, 8–12 mm thick) plus the finish skim (2–3 mm). "Skim" alone is the finish coat — a re-skim job applies only the finish coat over existing plaster. Full re-plaster includes both layers. Both use BS EN 13279-1 gypsum products from the Thistle range.

Why does a kitchen cost more to plaster than a bedroom of the same size?

Cuts. A bedroom has 4 walls, a window, a door — maybe 8 cut lines for the plasterer to navigate. A kitchen has cupboards (top and bottom), tiled returns, sockets at 600 mm centres, switches, extractor cuts, boiler housing, tap holes — often 30+ cut lines. The plasterer's productivity per m² drops by 30–50%, so the per-m² rate effectively rises.

Can I plaster over wallpaper?

No. Wallpaper traps moisture and prevents proper bonding — the skim will crack within weeks. Wallpaper must come off first. Stripping is included in honest quotes; cheap quotes that say "we'll just plaster over it" are not durable work.

Regulations & Standards