Full House Re-skim by a Plasterer in Camden, North London

This project involved a full house re-skim at a Victorian terraced house in Camden, NW1. The property had the hallmarks of a typical period home in the area — high ceilings, a straight-flight staircase with turned white-painted balusters, panelled internal doors, and timber flooring. The house had likely not been replastered in many years, and ahead of a full redecoration, every wall and ceiling across the ground floor required stripping back and re-skimming to provide a sound, paint-ready substrate throughout.

Before work began, the walls and ceilings across the property were in poor condition. Image one clearly shows the ground floor hallway or stairwell area mid-strip — old painted plaster had been hacked back in sections, revealing the bare substrate beneath. In areas where the plaster had already been removed, the rough masonry and patches of old bonding were exposed. Some sections of new plasterboard had been fixed to the lower portion of the wall — likely following a rewire or pipe chase — while the upper sections still retained fragments of the original plaster. Ceiling corners showed evidence of previous damage. The property needed a complete fresh skim across all surfaces before redecorating could begin.

The scope of work covered a full re-skim throughout the ground floor of this Victorian terraced property in Camden. This included the hallway, the front reception room, and the stairwell. Works involved: - Stripping back loose and failing plaster from all wall surfaces - Fixing new sections of 9.5mm plasterboard to lower wall sections where the substrate had been removed or chased during first-fix electrical work - Applying bonding coat across bare masonry and uneven areas before skimming - Applying a PVA wash to stabilise porous patches before the skim coat - Applying two coats of British Gypsum multi-finish plaster to all walls — a scratch coat followed by a finishing coat — trowelled flat and polished to a smooth surface - Re-skimming the ceiling throughout the hallway and reception areas - Feathering new plasterboard joints into existing surfaces to eliminate visible step lines - Allowing all surfaces to dry and lighten fully before the client's decorators followed on The finished scope left every wall and ceiling throughout the ground floor ready for mist coat and full redecoration, with no visible joints, patches, or surface irregularities remaining.

Before any plaster was applied, all loose and hollow plaster was hacked back across the walls. New plasterboard sheets were fixed to the lower wall sections using screws and timber noggins, and all board joints were taped with scrim mesh tape to prevent cracking at the seams. Bare masonry areas were first coated with a bonding coat — Thistle BondIt — to create a mechanical key. All previously painted surfaces that were being overskim were sanded and PVA'd with a diluted solution of 1:4 PVA to water, allowed to become tacky before the skim coat was applied. Ceiling rose and cornice edges were masked to protect the existing period detail.

Once all preparation was complete, plastering began with the ceilings. Multi-finish plaster was mixed to a smooth, lump-free consistency and applied to the ceiling using a 1200mm plastering trowel. The first coat — the scratch coat — was applied at approximately 2–3mm thickness and cross-scratched before it stiffened to provide a key for the second coat. Walls were tackled in sections, starting with the larger flat sections of the hallway before moving to the stairwell elevation. The stairwell presented an angled wall running alongside the staircase, which required the plaster to be laid off at a diagonal angle to follow the rake of the stairs. Each wall section received a scratch coat followed by a tightening coat, trowelled up as the plaster firmed. New plasterboard sections on the lower walls were skim-coated separately, with the joins feathered carefully into the surrounding plaster to avoid ridges. A small halogen work light was used at a raking angle throughout — visible in image one — to identify any surface imperfections during the trowelling process, which is standard practice on re-skim projects. By image two, the ceiling in the main reception and hallway area had been fully skimmed and allowed to dry — it appears bright white and fully hardened, with the characteristic sheen of freshly trowelled multi-finish plaster. Walls had been brought to a flat, paint-ready condition throughout.

The main challenge on this Camden re-skim was the mixed substrate across the walls. The lower sections had been boarded in new plasterboard — likely after first-fix electrical or plumbing work — while the upper sections retained the original painted plaster. These two substrates absorb moisture at different rates, meaning the skim coat can dry unevenly and crack at the joint if not managed correctly. The stairwell wall running at an angle alongside the staircase also presented a challenge in terms of laying off the plaster cleanly, as there was no flat horizontal line to work from and the skirting below ran on a rake.

To address the mixed substrate issue, the new plasterboard sections were first PVA'd independently and allowed to reach the correct tack, while the old painted plaster above was sanded and PVA'd separately. Scrim tape was bedded into the joints between board and existing plaster before any skim was applied. This gave the skim a consistent base and prevented differential movement at the joint. On the stairwell wall, a straight edge was used to set out level lines before plastering, and the plaster was laid off in overlapping passes following the angle of the stairs, with the finish trowelled tight before the plaster stiffened.

Image two captures the finished result in the ground floor hallway and reception area. The ceiling is fully skimmed and shows the bright, slightly reflective surface of freshly dried multi-finish plaster — flat and consistent across the full span, with no visible joints or ridges. The walls throughout the hallway have been brought to a smooth, even surface ready for mist coat. The staircase wall running up from the hallway has been cleanly finished to follow the rake of the stairs. All surfaces were left clean, dry, and ready for the client's decorator to apply a mist coat of diluted emulsion followed by two full coats.

The client, who was preparing the property for a full redecoration ahead of letting, was able to hand the job over to their decorator within two days of our team completing the plastering. All walls and ceilings were left fully dry, flat, and consistent across the ground floor. The decorator reported no issues with surface porosity or joint lines, and the client confirmed the finished walls took the mist coat evenly. The project was completed within the agreed programme and budget, with no follow-up snag visits required.

Re-skimming a full house in a Victorian terraced property in Camden is not a job that allows for shortcuts. Mixed substrates — new plasterboard alongside old painted plaster — will crack at the joints if the preparation is wrong. The stairwell wall requires accurate setting out and confident laying off at an angle. A poorly mixed or over-watered skim coat will slump on a vertical wall, leaving ripples and drag marks that only become visible once the decorator applies a mist coat. London Plastering Service has over ten years of experience re-skimming period properties across Camden and surrounding north London boroughs, and understands how Victorian homes behave.