A plasterer applies plaster, render and dry-lining systems to walls and ceilings, producing the smooth or textured surface that everything else in a room is built upon. On new build and extension projects a plasterer typically works after first-fix services are complete - boarding out with plasterboard, applying the scratch coat if necessary, and then finishing with a thin skim coat of gypsum plaster. External plasterers apply sand-and-cement render or proprietary polymer render systems to external walls for weatherproofing and appearance. Dry-liners specialise in plasterboard partitions, dot-and-dab wall lining and insulated dry-lining boards.
What they do
- Skim coat existing and new walls and ceilings to a smooth finish
- Board out with plasterboard before skimming
- Apply external sand-and-cement or polymer render
- Install dry-lining systems and insulated board for energy upgrades
- Repair ceilings after water damage or structural alterations
- Patch and make good after electrical and plumbing first fix
- Remove textured coatings (Artex) including testing for asbestos
- Apply specialist renders to SIPs panels and steel frame structures
When you need one
A plasterer is needed after any structural building work, rewire or replumb - and before decorating can begin. New plaster must dry fully before painting.
Typical costs (UK, 2025)
| Job type | Typical cost |
|---|---|
| Day rate | £150 - £280/day |
| Skim coat (per sq m) | £12 - £22/sq m |
| External render (per sq m) | £30 - £65/sq m |
| Dry lining (per sq m) | £18 - £35/sq m |
| Ceiling replacement (per sq m) | £15 - £25/sq m |
| Hourly rate | £30 - £55/hr |
Costs vary significantly by material specification. External render systems with mesh reinforcement, polymer finishing coat and silicone paint carry a substantial premium over basic sand-and-cement render.
Qualifications to look for
The blue Skilled Worker CSCS card confirms the holder has the relevant trade qualification and has passed the CITB health and safety test. Expected on all commercial and larger residential projects.
The standard vocational qualification for plasterers. Level 2 covers domestic plastering; Level 3 covers more complex work including fibrous plasterwork, heritage lime work and specialist render systems.
Workplace-assessed NVQ demonstrating practical competence. Required for the blue CSCS card. Ask to see the card and verify it at cscs.uk.com.
How to find a reputable plasterer
Frequently asked questions
What is the difference between plaster and render?
Render is applied externally for weatherproofing and decoration. Plaster is applied internally for a smooth, paintable finish. Both use similar application techniques but different mixes - external render uses sand and cement or polymer-modified materials, while internal plaster typically uses gypsum-based products.
How long does a room take to plaster?
A standard room takes 1-2 days to skim - walls and ceiling - plus drying time of at least 4-6 weeks before decorating. Rushing the drying process by heating the room excessively can cause the plaster to crack.
Can I plaster over existing plaster?
Usually yes if the existing plaster is sound and well bonded. Badly bonded, blown or damp plaster should be hacked off first. Always seal any patches with PVA bonding agent before skimming over old plaster to prevent suction problems.