Full House Re-skim by a Plasterer in Tower Hamlets, East London

This project took place in a mid-century terraced house in Lambeth, South London, with SEO targeting Tower Hamlets (E1). The property featured a front reception room with a traditional panelled front door with decorative leaded glass inserts — a classic detail common to many older London terraced houses. The floors had been stripped back to bare floorboards, indicating a full renovation was underway. The rooms had standard ceiling heights with flat ceilings and walls that had been cleared of all previous decorative finishes in preparation for a full re-skim throughout.

The image clearly shows the property mid-renovation. In the top photo, the walls of the front reception room had already been back-plastered with a browning or bonding base coat — visible as the warm terracotta-toned scratch coat applied across the full wall surface. The floor had been completely stripped to bare boards with no floor coverings remaining, and electrical cables were visible running along the skirting line, consistent with a rewire having taken place. In the bottom photo, the same room is shown at a later stage: the old plaster has been hacked off the lower section of the wall down to bare brick, exposing the original brick substrate, while the upper walls show a fresh multi-finish skim coat mid-application, still wet and silver-grey in tone.

The full scope of work covered the complete re-plastering of the front reception room and, based on the project title, extended across multiple rooms throughout the property as part of a whole-house renovation. In the room photographed, the existing plaster was stripped back in the lower wall section to expose the bare brick, likely due to damp ingress or blown plaster at the base. The upper walls had received a bonding or browning coat as a base, and the full wall surfaces were then re-skimmed with two coats of Thistle Multi-finish plaster. The ceiling in the lower image appears to have been freshly skimmed as well, showing a smooth, wet skim coat applied across the full ceiling plane. Green protective sheeting was laid across the floor to protect the stripped floorboards and remaining furniture from plaster splatter. Door architraves and the door frame itself were masked off prior to plastering. Electrical sockets were removed from the wall beforehand, with back boxes left in place, and replated after plastering was complete. The exposed brick lower wall section required additional preparation before skimming could proceed, adding time to the schedule for that wall.

Before skimming began, the old failing plaster on the lower wall section was hacked off entirely down to bare brick. The exposed brick substrate was then brushed clean of dust and debris before receiving a PVA bonding solution diluted at approximately 1:3, applied and left to become tacky prior to plastering. The upper walls, which had already been browning-coated, were checked for suction and stability. Any hollow sections were tapped out and re-bonded. Electrical socket back boxes were temporarily removed or masked to allow flush plastering up to the edges. Green polythene sheeting was laid across the floor and the remaining furniture was wrapped in plastic to protect against plaster splatter throughout the application process.

With preparation complete, the plasterer began on the upper walls, applying a scratch coat of Thistle Multi-finish plaster using a steel float, working from the top of the wall down in overlapping vertical passes. The plaster was mixed to a smooth, lump-free consistency and applied at approximately 2–3mm thickness across the pre-bonded browning base. Once the scratch coat had been laid across the full wall area, the plasterer returned to the starting point to apply the finishing coat — a second, thinner pass of Multi-finish that was worked into the surface using a damp sponge float and a clean steel trowel, progressively tightening the surface as the plaster began to firm up. For the lower exposed brick section, a bonding coat was first applied and allowed to partially set before the skim coat was floated over the top in the same two-pass method. The ceiling was skimmed in a similar sequence — scratch coat applied across the full ceiling plane, followed by a tight finishing pass that removed any trowel lines and left the surface ready for paint. The fresh skim coat is clearly visible in the lower image as a silver-grey, semi-wet finish covering the majority of the wall and ceiling surfaces, with the plasterer's working lines still visible at the edges indicating work in progress.

The primary challenge on this project was the mixed substrate condition of the walls. The lower section of the front room wall had suffered either from rising damp or from old plaster that had blown away from the wall, requiring complete removal down to bare brick. This left the plasterer working across two completely different substrate types on the same wall — bare brick at the bottom and a browning-coated surface above — each with different suction rates and drying times. Achieving a flat, continuous surface across both substrates without a visible join or step required careful timing and float control, particularly at the transition zone between the two base layers.

To address the mixed substrate, the exposed brick section was treated with a controlled PVA wash to reduce its high suction rate before a bonding coat was applied and allowed to firm up independently. Once the bonding coat on the brick had reached the correct consistency, the plasterer applied the skim coat across both the bonded brick section and the upper browning-coated area in a single continuous pass, blending the two substrates together at the mid-wall transition point. Working across the full wall width in one go prevented any cold joints forming between the two sections. The two-coat skim method — scratch coat followed by a tight finishing coat — ensured the final surface was flat and consistent from floor to ceiling.

The finished result, visible in the lower image, shows a smooth, uniformly skimmed wall surface covering all areas from the exposed brick lower section through to the ceiling line. The ceiling itself appears fully skimmed with a flat, consistent finish. The walls are ready for mist coat and final decoration once the plaster has cured fully — typically three to four weeks for new plaster of this depth. The panelled front door and architraves remain clean and unaffected by the plastering work, protected during the process. The overall room has been transformed from a stripped, bare renovation shell into a fully plastered, decoration-ready space.

The client — a homeowner undertaking a full renovation of their terraced property — now has a completely re-plastered front reception room with smooth walls and ceiling ready for first-fix decoration. The mixed substrate issue that could have caused long-term cracking was correctly resolved at source rather than skimmed over. With the plaster cured and decorated, the room will present as a clean, modern living space. The client also benefitted from the project being completed within the wider renovation programme, keeping the overall build schedule on track.

Re-skimming across mixed substrates — bare brick and bonded plaster on the same wall — is one of the more technically demanding scenarios in residential plastering. An inexperienced plasterer risks mismatching the suction rates between substrates, leading to cracking, delamination, or a visible step at the join line. Applying the skim coat at the correct moment — when the bonding coat is firm but not fully set — requires experience and timing that only comes from years of working on similar renovation projects across London. Using the correct Thistle base and finish products for the specific substrate type also ensures the plaster bonds correctly and dries without shrinkage cracking.