Full House Re-Skim by a Plasterer in Bromley – London Plastering Service

This project was carried out at a Victorian terraced house in the Lambeth area of London, typical of the period properties commonly found across South London boroughs including Bromley. The property featured a traditional front entrance porch with black aluminium-framed glazing panels and a classic panelled front door. The exterior rendering to the porch soffit and fascia areas showed visible pinkish-orange render coats, indicating prior repair attempts or original lime-based finishes. The property was undergoing a full internal refurbishment at the time of our visit, with work co-ordinated across multiple trades simultaneously.

Upon inspection of the property, the porch ceiling and soffit areas displayed bare render coats in a pink-toned bonding layer, consistent with old lime plaster or sand-and-cement base coats that had lost their finishing skim entirely. The substrate beneath showed patchy texture where the top coat had either been stripped back, blown off over time, or never properly finished. The lower inset image in the project collage clearly shows the exposed render coat running along the top of the porch frame — a rough, unfinished surface with no skim coat present. Internally, the full property required re-skimming throughout, as old painted plaster walls had deteriorated across multiple rooms.

The full scope of work covered a complete re-skim of the entire property across all rooms, including living areas, bedrooms, hallway, and stairwell. The porch ceiling and soffit areas visible in the images required a sand-and-cement render base to be applied first before a finish skim coat could be laid over the top. Internally, all walls and ceilings were assessed for soundness before the skim coats were applied. Where existing painted plaster surfaces were present, these were washed down with a diluted PVA solution to improve adhesion and reduce suction. Hollow or blown sections of old plaster were cut back to the brick or block substrate and re-bonded before skimming. The hallway, which experiences the highest footfall and typically shows the most wear on plaster surfaces in period houses, was included in the scope. All architrave and skirting board junctions were carefully masked and cut in. The project also included the porch external soffit area, which required weatherproof render preparation before the skim was applied.

Before any skim coat was applied internally, all wall and ceiling surfaces were checked for hollow spots by tapping across the face of the plaster. Any sections that had debonded from the substrate were cut out cleanly and filled with bonding coat, then allowed to fully cure before skimming began. A diluted PVA bonding agent was applied to all surfaces scheduled for skimming to control suction and ensure the multi-finish plaster bonded correctly. For the porch soffit area, a scratch coat of sand-and-cement render was applied and combed to provide a mechanical key for the finish plaster. All door frames and window reveals were protected with masking tape and dust sheets.

Internally, each wall and ceiling surface received two coats of British Gypsum multi-finish plaster — a first scratch coat applied at approximately 3mm thickness, which was lightly scratched before the second finishing coat was laid on and trowelled to a flat, smooth surface. The plasterer worked room by room, ensuring each area was completed before moving on to avoid cold joints between fresh and curing plaster. Ceilings were skimmed first in each room, followed by the walls, allowing gravity drips from ceiling work to be picked up and incorporated into the wall coat. The porch soffit was skimmed using a sand-and-cement float finish appropriate for semi-exposed external conditions, given its position under the glazed porch canopy. The 'Wet Floor' sign visible in the image confirms fresh plaster or render was still curing at the time the photo was taken — a good indicator that the team managed site safety during the drying phase. Angles and reveals around the glazed porch panels were formed using metal angle beads to produce straight, defined edges where the plaster meets the aluminium frame.

One of the main challenges on this project was working around the existing glazed porch structure. The black aluminium-framed panels and glazed panels surrounding the front entrance created confined angles and tight reveals that required careful cutting in with a small pool trowel. Protecting the glass panels from plaster splatter while still achieving a clean edge up to the frames required patience and precise masking. Internally, the varying suction levels across old painted plaster walls — common in Victorian terraced houses — meant the PVA priming had to be applied in two coats in higher-suction areas to prevent the skim coat from drying too fast and cracking.

To manage the tight reveals around the porch glazing, stainless steel stop beads were fixed along the plaster edges adjacent to the aluminium frames, giving the plasterer a clean termination point without the need to cut directly against the glass. All glazed panels were masked with wide tape and polythene sheeting before any plaster was mixed. For the high-suction internal walls, a second coat of diluted PVA was applied and allowed to go tacky before the skim coat was laid — this slowed the suction rate sufficiently to allow a proper trowelled finish without surface cracking. Working room by room also meant each area had adequate time to firm up before the team moved through with final trowelling.

The porch soffit and fascia areas were left with a clean, flat render finish ready for decoration, with crisp edges formed along the aluminium glazing frames by the stop beads. Internally, all walls and ceilings across the property were skimmed to a smooth, paint-ready surface. The 'before' inset image in the project collage clearly shows the raw, unfinished render coat on the porch soffit, while the main image shows the same area with fresh plaster curing — the 'Wet Floor' sign confirming the work had just been completed at the time of photography. The property was left clean and ready for the decorating team to follow on.

The client received a fully re-skimmed property with all walls and ceilings brought back to a smooth, paint-ready condition throughout. The porch soffit area, which had been left with bare exposed render for some time, was properly finished and protected. The decorating team was able to begin priming the walls within five days of the plastering being completed, keeping the overall refurbishment programme on track. The client noted that the external porch area in particular made an immediate visual difference to the front of the house.

Attempting to re-skim a full Victorian terraced house without proper preparation will almost always result in the new skim coat delaminating from the old painted plaster beneath. The key steps — tapping for hollow plaster, cutting out failed sections, applying PVA to control suction, and using bonding coat on bare brick — are not optional extras. They are the reason a re-skim coat stays in place for decades rather than cracking and peeling within months. External porch soffits also require the correct render specification; standard multi-finish plaster is not suitable for semi-exposed locations and will fail rapidly if used in those conditions.