Steel BeamInstallers
Plasterer seen from behind skimming a newly boxed beam

Plastering & making good · Barnet

Plastering & making good in Barnet

Plastering & making good for homes in EN4, EN5, N12, designed by a structural engineer.

  • Free survey visit in Barnet
  • Engineer's calculations arranged
  • Building control handled for you

Free survey in Barnet

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  • Free survey visit
  • Engineer's calculations arranged
  • Building control handled
  • Fixed written price once scope is agreed
  • England, Wales, mainland Scotland & NI

Planning plastering & making good in Barnet

Planning plastering & making good in Barnet? Our team covers EN4, EN5, N12, N20 and NW7 and the streets around them. We also cover the surrounding towns and villages in London. You get one written quote for the calculations, approvals, propping, steel and making good.

We make good as the final stage of our structural jobs, and can quote it separately where another firm has fitted the steel. It covers boxing and fire boarding, plastering and skimming, floor infills and skirting, leaving smooth, dry surfaces for your decorator.

Worth knowing before you start

  • Making good is easy to underestimate when budgeting. Removing a wall disturbs the ceiling, both wall ends and the floor, and props and needles leave their own marks, so the finishing work usually covers far more than the opening itself.
  • 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.
  • New plaster is very absorbent, so the first coat of emulsion is normally thinned with water as a mist coat to seal it. Skipping this step is a frequent reason paint flakes off fresh plaster within weeks of decorating.
  • Metal angle beads on every outside corner of the boxing give crisp, straight lines and protect the edges from knocks. They are set true to the ceiling and walls, so a slightly out-of-level beam does not show once skimmed.
  • 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.

How the job runs in Barnet

  1. Survey in Barnet

    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.

  2. 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.

  3. 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.

  4. 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.

Guide prices for plastering & making good in Barnet

As a guide, budget £380–£1,540 including VAT for plastering and making good in Barnet, based on published UK cost guides adjusted for London prices (+28%).

JobTypical guide rangeWhat it usually covers
Plastering and making good£380–£1,540Boxing the beam, bead and skim, reveals, floor infill where the wall stood and tidy-up
Fire protection to a steel beam£190–£770 per beamFire-rated board boxing or an intumescent coating system as specified
Through-lounge knock-through£3,200–£7,050Wall between front and back reception rooms, steel beam, approvals, plastering and floor infill
Load-bearing wall removal with steel beam£2,550–£6,400Typical internal wall up to about 4 m: calculations, building control, propping, steel, padstones, fitting, fire protection and making good

Figures include our approximate regional adjustment for London prices (+28%) and are rounded. How these figures are worked out.

Building rules for Barnet

Structural openings in English homes need building regulations approval before work starts. The local council's building control team can deal with it, or you can use a registered building control approver. Either way the steel is inspected before it is covered, and a completion certificate is issued at the end. Keep it safe for when you sell.

Terraced and semi-detached homes often need party wall notices, because cutting into a shared wall to take a beam end is notifiable under the Party Wall etc. Act 1996. Allow at least two months for the notice period unless your neighbour agrees sooner.

Building rules in England

Plastering & making good near Barnet

Questions about plastering & making good in Barnet

How much does plastering & making good cost in Barnet?

As a guide, budget £380–£1,540 including VAT for plastering and making good in Barnet, based on published UK cost guides adjusted for London prices (+28%). The exact figure depends on the span, what the wall carries, access and the finish, and is fixed in writing once the scope is agreed.

How soon can plastering & making good start in Barnet?

Start dates depend on the engineer's calculations, the building control approval and, where needed, party wall notice periods. We give you a realistic timetable after the survey and keep you updated as each approval comes through.

Do you decorate after making good?

Not usually. Making good leaves surfaces skimmed, dry and ready for paint, with trims refitted, and decoration is normally left to you or your decorator so you can choose colours and finishes yourself. Whoever paints should start with a thinned mist coat on the new plaster before the main coats.

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.

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.

Who approves plastering & making good in Barnet?

Structural work in Barnet 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.

Planning to take a wall out?

Book a free survey visit. You get an itemised written quote covering calculations, building control, steel and making good.