Small bathroom renovation ideas for UK homes in 2026: wet room, shower-over-bath and compact layouts, realistic costs, tiling, lighting and ventilation tips. This guide is written by PG Property Repairs and Renovations, an FMB and TrustMark accredited building company based in Worthing, using real costs and timescales from projects completed across Worthing, Lancing, Shoreham, Brighton and the wider West Sussex area.