Stairwell Ceiling Replacement & Wall Re-Skim by a Plasterer in Ealing

This project took place in a Victorian terraced house in Ealing, West London. Properties of this type — typically built between the 1880s and early 1900s — commonly retain their original lath and plaster ceilings, which can deteriorate significantly over time. This particular home had reached the point where the original ceiling structure was beyond repair and required full removal and replacement with modern plasterboard before a fresh skim coat could be applied to bring the space up to a modern standard.

The images clearly show the original lath and plaster ceiling had completely failed. The top-left photo reveals the full extent of the damage: all plaster had been stripped or had fallen away, leaving only the bare timber joists and the original wooden lath strips exposed. Loose electrical cables were also visible hanging between the joists, indicating the property had undergone some rewiring work. The surrounding walls showed heavily worn and patchy plaster with areas of exposed render coat. The stairwell environment made access particularly difficult, and the debris from the failed ceiling had to be cleared before any new work could begin.

The scope of work for this stairwell ceiling replacement and wall re-skim in Ealing covered the following: removal of all remaining lath and plaster debris from the ceiling void; inspection of the exposed timber joists for any signs of structural movement or rot; fixing new 12.5mm tapered-edge plasterboard sheets directly to the ceiling joists using drywall screws at the correct centres to achieve a flat, level substrate; jointing of all plasterboard seams using scrim tape and a bonding compound to prevent cracking at the board joints; application of a PVA bonding wash to the surrounding wall surfaces where old plaster had been cut back or had deteriorated; a full two-coat multi-finish skim applied to the new plasterboard ceiling, comprising a scratch coat to embed and key the surface followed by a finish coat trowelled flat; and a matching two-coat skim applied to the prepared wall surfaces to ensure the walls and ceiling met at a clean, consistent finish. Throughout the project, the stairwell access required the use of a tall telescopic ladder and platform arrangement to allow safe working at height across the full ceiling area.

Before any plasterboard could be fixed, all remnants of the old lath and plaster ceiling were removed from between and around the joists. Electrical cables visible in the void were carefully moved aside and secured safely out of the working area. The timber joists were inspected and confirmed sound. Existing wall plaster around the perimeter of the stairwell was cut back to firm edges where it had become loose or hollow. All wall surfaces were coated with a diluted PVA bonding solution — approximately one part PVA to four parts water — and left to become tacky before any plaster was applied, ensuring adequate suction control on the porous substrate.

With the ceiling joists exposed and the stairwell prepared, new 12.5mm tapered-edge plasterboard boards were lifted into position and fixed to the ceiling joists using 3.5mm drywall screws at 150mm centres along the joists, with each screw head driven just below the board surface without breaking the paper face. All board joints were taped with fibreglass scrim tape, which was then bedded into a thin layer of bonding compound and allowed to dry. Once the boards were fully secured and the joints set, the entire ceiling received a scratch coat of British Gypsum Multi-Finish plaster, applied at approximately 2–3mm thickness and cross-scratched to create a mechanical key. A second finishing coat was then applied and trowelled progressively as the plaster stiffened, using a clean steel float to achieve a flat, smooth surface. The same two-coat Multi-Finish process was applied to the stairwell walls, which had been PVA-primed the day before. The final bottom-right image in the collage shows the completed skim — the walls and ceiling displaying an even, consistent brown-coat finish ready for decoration. Given the raking geometry of the stairwell ceiling and the difficulty of working at height on a pitched staircase, the plastering was completed in careful sections to maintain a wet edge throughout.

The primary challenge on this project was the stairwell setting itself. Stairwell ceilings follow the pitch of the staircase, meaning the ceiling height varies from one end to the other, making it impossible to use standard scaffolding or hop-ups. The plasterer had to work from a tall telescopic ladder — visible in the bottom-left image — while handling and fixing full sheets of 12.5mm plasterboard overhead. Maintaining consistent board fixing and achieving flat, even joins across a raking ceiling without a stable flat-floor platform requires considerable experience and physical control, particularly when applying wet plaster at full arm extension.

To overcome the access challenge, a combination of a tall telescopic ladder and a purpose-built stair platform was used to provide safe and stable working positions at each section of the pitched ceiling. Plasterboard sheets were cut to the correct raking angle before being lifted into position, reducing the time spent making adjustments overhead. The skim was applied in manageable sections — working from the top of the stairwell down — to ensure a continuous wet edge was maintained and no cold joins were left in the finish coat. The PVA priming of wall surfaces the day before allowed the plaster to be applied at a controlled rate without being drawn in too quickly by the porous old render beneath.

The bottom-right image of the collage shows the completed stairwell after skimming — walls and ceiling both carrying an even, warm-toned brown finish coat that is ready for painting once fully dried. The new plasterboard ceiling sits flat and level against the pitch of the staircase, with no visible board joints or scrim lines. The wall plaster meets the ceiling at a consistent, clean line. What had previously been an exposed, debris-strewn stairwell with a completely failed Victorian ceiling is now a smooth, structurally sound surface that will accept decorator's paint or lining paper directly.

The homeowner in Ealing was able to proceed with decorating their stairwell shortly after the plaster had dried and cured — typically 7–10 days for a full two-coat skim on new plasterboard. The replacement ceiling eliminated the risk of further plaster falls in the stairwell and resolved the unsightly, deteriorated appearance of the space. With the walls and ceiling now skimmed to a consistent standard, the stairwell required only a mist coat of emulsion followed by the client's chosen finish paint, completing what had been a long-standing maintenance issue in the property.

Replacing a lath and plaster ceiling in a stairwell is not a task suited to a general builder or a DIY approach. The combination of working at height on a raking pitch, handling full sheets of plasterboard overhead, achieving flat board joints on a sloped surface, and then applying a two-coat wet plaster finish demands both plastering expertise and safe working-at-height practice. An incorrectly fixed board — under-screwed or with poor edge support — can sag and crack within months of decoration. A plasterer with experience of Victorian terraced properties in Ealing understands how to manage suction rates on old substrates and how to achieve a finish coat that bonds correctly to new plasterboard.