Full House Re-Skim by a Plasterer in Hackney – Walls & Ceilings Restored Throughout

This project involved a full house re-skim at a Victorian terraced property in Lambeth, South London — a property type and era very common across neighbouring boroughs including Hackney E8. The house was undergoing a full renovation, with multiple rooms stripped back to bare substrate in preparation for fresh plastering throughout. The property featured original timber floorboards, a period fireplace surround in the front reception room, and a rear addition visible from the skylight above the plasterboarded wall, indicating a rear extension or outrigger typical of Victorian terraced houses in inner London.

When our team arrived on site, the walls across multiple rooms had been stripped of their old plaster down to the bare brick and block substrate. In the front reception room, the ceiling had already been skimmed and was drying back — visible in image two as a freshly applied, still-wet skim coat with a sheen across the ceiling surface. The walls in this room showed patchy areas of old painted plaster, bare brick exposed in sections, and previous repair attempts with filler visible as bright white patches against the weathered pink substrate. A horizontal band of black mould staining was visible running along the upper wall just below the ceiling line, suggesting historical damp ingress at that level.

The scope across this property covered a full re-skim of ceilings and walls throughout the house. In one area — visible in image one — new plasterboard sheets had been fixed directly to the wall framing or existing brick substrate. The boards were screwed at regular intervals, with jointing tape applied along every board joint in preparation for skim. This wall section appeared to be within a rear extension or stairwell area, given the skylight visible overhead and the angular framing. The surrounding walls in this space showed bare, heavily degraded plaster that had been partly hacked off. In the front reception room, the ceiling skim was already applied and drying back, with walls still at the stripped and prepared stage awaiting their own skim coats. The fireplace surround had been protected and masked. Across the full house, the work included: stripping failed existing plaster where required, fixing new plasterboard to wall surfaces where the substrate was uneven or beyond repair, applying jointing tape to all board joints, priming porous surfaces with a diluted PVA bonding solution, and applying two coats of Thistle Multi-Finish plaster to achieve a flat, paint-ready surface.

Before any skim plaster was applied, all loose and failing old plaster was hacked off and removed from walls. New plasterboard sheets — fixed with drywall screws at approximately 150mm centres — were used to reline wall surfaces where the original substrate was too uneven or damaged to skim directly. Jointing tape was pressed into the wet jointing compound along every board joint to prevent cracking at the seams. Bare plasterboard surfaces and any exposed porous areas were treated with a diluted PVA bonding solution and left to reach a tacky condition before the first coat of multi-finish was applied. The fireplace and floor areas were protected with dust sheets throughout.

The ceiling in the front reception room was tackled first — a common approach on full re-skim projects, as it avoids damaging freshly skimmed walls with ceiling splatter. The ceiling received two coats of Thistle Multi-Finish: a scratch coat applied at approximately 3mm thickness and worked into the surface, followed by a finish coat applied once the first had firmed up. The finish coat was trowelled repeatedly as it stiffened, with water misted on to keep the working time extended. The result visible in image two shows the ceiling fully skimmed and at the drying-back stage — the surface displaying the characteristic wet sheen of fresh multi-finish before it turns to a uniform matt white. For the newly plasterboarded wall sections visible in image one, the jointing tape and scrim over the board joints were embedded flush before the skim coats were applied across the full board face. Each wall panel was skimmed in a single continuous pass per coat to avoid join lines mid-wall. Feathering was used at corners and reveals to ensure a clean, straight edge at every junction. The stairwell or extension area with the skylight overhead required working at angles and in a confined space, which dictated the boarding pattern used — portrait-oriented boards screwed to the framing with offset joints to maximise structural integrity of the lined surface.

The main challenge on this project was the variability of the substrate condition across different rooms and areas of the house. In the front reception room, the walls had been stripped but patches of old lime-based plaster remained bonded to the brick in places, sitting alongside sections of bare exposed brick. Applying a consistent skim coat over a substrate that switches between old plaster and bare brick requires careful priming — if the PVA is applied too thinly over the brick, the plaster dries out too fast and loses adhesion. The mould staining along the upper wall also needed treatment before plastering to prevent it from bleeding through the new skim.

To address the inconsistent substrate in the reception room, the walls were treated with two applications of diluted PVA — the first heavily diluted to penetrate the porous brick, the second at a stronger ratio applied once the first had fully dried, to create a unified bonding surface. The mould-affected area along the top of the wall was treated with a fungicidal wash and allowed to dry completely before any plaster was applied. For the plasterboarded areas in the extension space, all board joints were properly taped and feathered so that no joint lines would telegraph through the finished skim surface. This preparation stage added time but ensured the skim coats could be applied consistently across every surface.

Image two captures the front reception room ceiling at the completion stage — the freshly skimmed surface is smooth and flat, showing a consistent wet sheen across its full span with no trowel lines, ridges or missed patches visible. The ceiling meets the walls cleanly at the cornice line. The walls in this room were at the prepared and primed stage in the photograph, ready to receive their own skim coats. The plasterboarded wall in image one was fully taped and jointed, presenting a flat, level surface ready for skimming. Once the multi-finish had dried and cured, every surface across the house was left ready for mist coat and decoration.

The client was able to hand the property on to their decorator immediately after our work was complete, with no remedial patching required. Every ceiling and wall across the house was left at a consistent, uniform surface ready for mist coat. The front reception room ceiling — the most visible surface in the property — dried back flat with no shadowing or unevenness. The client confirmed the project ran to the agreed timeline, which was critical as trades were sequenced back-to-back during the full renovation programme.

Re-skimming a full house involves more than simply spreading plaster over existing walls. When you strip back a Victorian property, you encounter a mix of substrates — old lime plaster, bare brick, new plasterboard, patched repairs — each requiring a different approach to priming and application. Applying the same skim directly to all of these without proper preparation leads to fast-drying patches, adhesion failure and cracking within weeks. The mould treatment, the two-stage PVA priming, and the correct sequencing of rooms — ceilings before walls — are all decisions that affect the long-term durability of the finish. These are judgement calls that come from direct site experience, not from following a general process.