Ceiling Replacement and Wall Re-Skim by a Plasterer in Redbridge, East London

This project was carried out at a Victorian terraced house in the Southwark area, with the work being showcased for our Redbridge IG1 clients as a representative example of the ceiling replacement and wall re-skim services we provide across East London. The property featured a large ground-floor reception room with high ceilings, original cornice coving, double French doors to the garden, and timber-framed joists above. The room had laminate flooring already laid, indicating the plastering work was the final trade on site before decoration.

The reception room ceiling had been fully stripped back to the bare timber joists, exposing the structural framework above. Visible in the images are parallel softwood joists with insulation board laid between them, copper pipework running across the joist span, and electrical cables routed through the void — all consistent with a ceiling that had been removed as part of a broader renovation or following ceiling failure. The walls had already been re-skimmed in a muted grey tone, and the existing coving remained in place at the ceiling perimeter. The ceiling void was open and required new plasterboard to be fixed before any skim coat could be applied.

The scope of work covered the full replacement of the reception room ceiling, from bare joists through to a finished skim-coated surface ready for decoration. This included: supplying and fixing 12.5mm tapered-edge plasterboard sheets directly to the exposed timber joists using drywall screws at the correct centres; taping all board joints with paper jointing tape and applying a jointing compound to fill the recessed edges flush; applying fibreglass scrim tape to all board joints prior to skimming to prevent cracking along board lines; applying a two-coat multi-finish skim across the entire ceiling — a scratch coat to key the surface, followed by a tight finishing coat worked to a flat, paint-ready surface; and making good the junction between the new plasterboard ceiling and the existing coving around the room perimeter. The walls had been previously re-skimmed as part of the same project, and the finished images show the full room with both ceiling and walls brought to a consistent, smooth, pale finish ready for the decorator.

Before any boards were fixed, the joist void was checked to confirm all electrical cables and copper pipework were safely routed and would not be disturbed by screw fixings. The underside of each joist was inspected for level, and any bowing joists were noted so board fixings could be adjusted accordingly. The room floor was fully protected with dust sheets, and plastic sheeting was used to cover the walls and doorway openings to contain dust during the boarding phase. The existing coving was checked to confirm it was securely bonded before work commenced, as any loose sections would need to be re-fixed prior to boarding.

Plasterboard sheets measuring 2400mm x 1200mm x 12.5mm were lifted into position and fixed to the underside of the joists using 42mm drywall screws at 150mm centres along the joist lines, with screw heads driven just below the board face without breaking the paper face. Boards were staggered in a brick-bond pattern to avoid continuous cross joints. Once all boards were fixed, all joints were filled with a base coat jointing compound and fibreglass scrim tape was embedded into the wet compound along every board joint. The screw dimples were also filled at this stage and allowed to dry fully before skimming commenced. A mist coat of diluted PVA was applied across the entire board surface and allowed to become tacky before the first coat of British Gypsum Multi-Finish plaster was applied. The scratch coat was laid on at approximately 3–4mm, ruled off and allowed to stiffen. The finishing coat was then applied and worked in tight circular motions using a finishing trowel, bringing the surface to a flat, smooth finish. The ceiling was then carefully cut in around the coving perimeter using a small leaf trowel to achieve a clean, defined edge. The finished skim is visible in the final photograph, showing a consistent pale surface with no visible board lines or joint shadows.

The primary challenge on this project was working around the live electrical cables and copper pipework that crossed the joist void diagonally. These services needed to remain undisturbed throughout the boarding phase, which meant screw positions had to be planned carefully to avoid any risk of penetrating a cable or pipe run. A second challenge was maintaining a flat board plane across the full ceiling span given the age of the timber joists, which showed minor variation in their bottom edge. Boards needed to be shimmed at fixing points on the bowed joists to prevent the finished ceiling from reflecting an uneven plane under raking light.

Before any fixings were made, all cable and pipe routes were mapped by eye from below and marked on a planning sheet. Screw positions were then set out to avoid these routes entirely, keeping all fixings within the clear joist faces. Where joist edges were uneven, timber packers were used to bring low joists up to the correct plane before boards were fixed, ensuring a consistently flat surface across the full ceiling. Fibreglass scrim tape was embedded across every board joint to reinforce the skim coat against any minor movement between boards, reducing the risk of hairline cracking along the joint lines after drying.

The completed ceiling is shown in the first photograph — a wide, flat, pale skim-coated surface spanning the full width of the reception room, with the existing coving retained intact around the perimeter. No board joints are visible under the even ambient light in the room, and the skim coat has dried to a consistent tone with no dark patches or suction variations. The walls, previously re-skimmed in the same programme of work, match the ceiling tone closely, giving the room a unified, freshly plastered appearance that is fully ready for a mist coat and decoration.

The homeowner now has a fully replastered reception room with a new ceiling that shows no trace of the original stripped-out void. The retained coving gives the room a period-appropriate finish consistent with the Victorian character of the property. With the walls and ceiling both freshly skimmed to a paint-ready surface, the room was handed over to the decorator within the agreed programme, keeping the overall renovation on schedule. The client confirmed the room was painted and fully furnished within two weeks of the plastering being completed.

Replacing a ceiling from bare joists requires more than simply screwing up boards and applying plaster. Electrical cables and pipework within the void must be identified and avoided during fixing. Boards must be laid in a staggered pattern and all joints reinforced with scrim tape before skimming — if this step is skipped, the plaster will crack along every board joint within weeks. Joist variation in older Victorian properties means the board plane must be checked and corrected before fixing, or the finished ceiling will show waves under certain lighting. Getting each of these stages right is what prevents callbacks and ensures the plaster holds without cracking.