Plastering in Portadown

Yes, if the substrate is sound — plasterers key the surface and use bonding agents. But blown (hollow-sounding), crumbling, or damp-stained plaster must come off first. A good plasterer taps the walls during the quote to check; be wary of anyone who doesn't.

No — plaster over damp fails within months. The moisture source (rising damp, leaking gutter, condensation) must be fixed first, then damaged plaster cut back and replaced, sometimes with a salt-resistant renovation plaster. Any plasterer who skips the cause is selling you a repeat job.

A skim coat is touch-dry in a day but needs roughly a week to fully dry before painting; full re-plaster can take several weeks depending on thickness, ventilation and season. Paint too early and you trap moisture, causing peeling. Use a mist coat (diluted emulsion) first.

Rendering is exterior plastering with cement- or silicone-based mixes to protect and finish outside walls; plastering refers to interior walls with gypsum or cement finishes. Many plasterers do both, but exterior render is priced and scheduled differently (weather-dependent).

Ask plasterers in Portadown for photos of finished painted work and check how they handle preparation — good plasterers talk about PVA priming, suction control and drying times, not just the final trowel. Reviews plus a small test area on big jobs are the best filters.

A typical room skim (walls only) runs a few hundred pounds — Checkatrade's 2026 guide puts most rooms in the £400-700 range including materials, with ceilings extra. Full re-plaster after hack-off roughly doubles that.

Yes, overskimming artex is common and avoids disturbing it — but get it tested for asbestos first if it predates 2000. High-relief patterns may need a scrape (only after a negative test) or bonding coat before the skim.