Plastering & making good · Cornwall
Plastering & making good in Cornwall
Plastering & making good across Cornwall, designed by a structural engineer and signed off by building control.
- Price fixed in writing once scope is agreed
- Building control arranged
- Temporary works and making good included
- Free survey visit
- Engineer's calculations arranged
- Building control handled
- Fixed written price once scope is agreed
- England, Wales, mainland Scotland & NI
About our plastering & making good service in Cornwall
Plastering and making good is the finishing work after a beam goes in or a wall comes out: boxing the steel, fixing corner beads, patching ceilings and wall ends, infilling the floor where the wall stood and skimming everything smooth. The aim is a room that looks as if the opening was always there, ready for paint.
If you are planning plastering & making good in Cornwall, the order of work matters as much as the steel: survey, calculations, approval, propping, installation, inspection and making good. We work in Newquay, St Austell and Falmouth and the surrounding villages. We run that sequence for you as one job with one point of contact.
Key points for your project
- Fresh plaster has to dry before it is painted. A thin skim over board in a warm, ventilated room often dries within a few days to a week, while backing coats and deeper repairs take longer. Painting too soon can cause peeling and patchy colour.
- Hairline cracks sometimes appear along board joints or where new plaster meets old, as the building settles onto the steel and the plaster dries out. They are normal in the first months and are usually filled at the next redecoration.
- Period cornicing and ceiling roses can often be repaired or run to match the existing profile. Where a wall is removed between two rooms with cornice, the ends are usually returned neatly along the new beam so the detail looks intentional.
- Making good is the last chance to route cables neatly before surfaces close up. Sockets, switches and lights moved for the new layout are first-fixed before boarding, and pipes crossing the old wall line can run within the floor infill.
- The cost depends mainly on the area to repair, the condition of the ceilings, whether period details need matching, and the size of the floor infill. Overboarding a badly damaged ceiling can work out more economical than patching it piece by piece.
Four stages, one team
Survey in Cornwall
We visit, look at the wall and what sits above it, measure the opening and note services, access and how the steel can be brought in.
Engineer's design
A structural engineer sizes the beam, padstones and any posts, and sets out the temporary support needed while the wall is out.
Building control
We submit a building notice or full plans application to the local council's building control team, so approval is in place before the wall is touched.
Install and sign-off
Props go in, the opening is formed, the steel is set and packed, building control inspects it, and we make good.
What does plastering & making good cost in Cornwall?
As a guide, budget £310–£1,240 including VAT for plastering and making good in Cornwall, based on published UK cost guides adjusted for prices in the South West (+3%).
| Job | Typical guide range | What it usually covers |
|---|---|---|
| Plastering and making good | £310–£1,240 | Boxing the beam, bead and skim, reveals, floor infill where the wall stood and tidy-up |
| Kitchen-diner knock-through | £2,600–£6,200 | Internal structural wall between kitchen and dining room, steel beam, approvals and making good (kitchen fitting extra) |
| Load-bearing wall removal with steel beam | £2,050–£5,150 | Typical internal wall up to about 4 m: calculations, building control, propping, steel, padstones, fitting, fire protection and making good |
| Through-lounge knock-through | £2,600–£5,650 | Wall between front and back reception rooms, steel beam, approvals, plastering and floor infill |
Figures include our approximate regional adjustment for prices in the South West (+3%) and are rounded. How these figures are worked out.
Building control and neighbours in Cornwall
For Cornwall, building control is provided by the local council's building control team, or by a registered building control approver if preferred. We send them the engineer's calculations with a building notice or full plans application and book the inspections. Work done without approval can cause problems at sale and is far dearer to put right later.
If the beam bears into a wall you share with a neighbour, the Party Wall etc. Act 1996 applies, and a party structure notice must be served at least two months before that work starts. We arrange this through a party wall surveyor.
Questions about plastering & making good in Cornwall
Which towns in Cornwall do you cover?
We cover towns including Redruth, Falmouth, St Austell and Truro, plus the villages and smaller towns around them.
Who approves plastering & making good in Cornwall?
Structural work in Cornwall needs a building notice or full plans application to the local council's building control team or a registered building control approver. We prepare and submit it with the structural engineer's calculations and arrange the inspections, so the completion paperwork follows the job.
Do you replace skirting boards and door frames after a knock-through?
Yes, where the work affects them. Skirting is extended or replaced so it runs through the new opening, and door linings and architraves are refitted or replaced where an opening has changed. Where period mouldings are involved, matching profiles can usually be sourced or made up to suit.
How long after a knock-through can I decorate?
Once the new plaster has dried right through, which for a thin skim in a warm, ventilated room is often a few days to a week. Deeper repairs and backing coats take longer. Plaster turns from dark to an even pale colour when it is dry, and painting before then risks poor adhesion.
Is plastering included when a load-bearing wall is removed?
Yes, on our structural jobs making good is priced as part of the work and itemised on the written quote, so you can see exactly what is included. If another firm is doing the steelwork, check their quote closely, as some stop at the beam and leave plastering, floor infill and skirting for you to arrange.
How do you hide a steel beam in the ceiling?
Most beams are boxed with fire-rated plasterboard fixed to a light frame, then finished with corner beads and a skim coat so they read as part of the ceiling. If you want no downstand at all, the beam has to be set into the floor void when it is installed, which is decided at the design stage.