Extensions
New walls and ceilings need the correct board type and fixing arrangement for the design, followed by appropriate joint treatment and finishing.
Plastering Service London · Specialist services
Plastering for Extensions & Loft Conversions London
New extensions and loft rooms need well-prepared plasterboard, carefully finished junctions and a smooth surface for decoration. Learn how plastering fits into the build programme.
01 / New-build interiors
The plastering stage of an extension or loft conversion
New rooms introduce a different set of details from re-skimming an existing bedroom: plasterboard layouts, roof slopes, dormer cheeks, rooflights and junctions between new and old structures.
Loft conversions
Sloping ceilings, tight eaves, dormers and access stairs affect board handling, joint positions and the time needed for a clean finish.
Old meets new
Transitions between an existing house and an extension may need careful detailing to manage movement and reduce cracking.
02 / New-build interiors
Get the build ready for plastering
A smooth skim is the final visible layer of a system. The underlying framing, boards and services must be correct before the finish goes on.
First-fix services
Electrical, plumbing and ventilation work should be coordinated before closing ceilings and walls.
Boards and specifications
Moisture-resistant, fire-rated or other specialist boards may be required by the design. Board selection must follow the approved specification, not a generic assumption.
Joints and openings
Rooflight reveals, external corners, access hatches and dormer returns require planning for neat edges and consistent surfaces.
03 / New-build interiors
Information that makes a build quote accurate
Plans are helpful, but current site photographs and a clear description of what is already boarded are equally important.
Define the trade boundary
Is the job boarding and skimming, skimming only, or making good after another contractor? Clarify insulation and airtightness responsibilities.
Site programme
Agree when the building will be weather-tight, services inspected and work areas available.
Handover finish
Identify the expected finish, any difficult access, drying allowances and the point at which decorators can start.
FREE PLASTERING QUOTATION
Get your new space plaster-ready
Share drawings or photos of your extension or loft conversion, plus the build stage and approximate surface areas, for a tailored discussion.
Extension or loft quoteFrequently asked questions
When should plastering start on an extension?
Once the building is weather-tight and the required first-fix work and inspections are complete.
Can you plaster sloping loft ceilings?
Yes, where the background and specified board system are suitable.
Is insulation included?
Only if specifically described in the quotation and agreed against the project specification.
Will you make good where new walls meet old?
This can be included after assessing movement joints, background and the required finish.
Get a quote for your London property
Tell us which rooms or surfaces need work, and send photographs where possible. We can discuss the suitable preparation and provide a quotation for the agreed scope.
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