Bathroom Renovation Cost London 2026

A full bathroom renovation includes: stripping out all existing fixtures and fittings, removing old tiles and floor covering, tanking (waterproof membrane to walls and floor where required), first-fix plumbing (repositioning or extending soil and water pipes), first-fix electrics (rewiring, adding circuits for underfloor heating, extractor, shaver sockets), plastering or skimming, tiling to walls and floor, second-fix plumbing (fitting bath/shower tray/basin/toilet and connecting to supply and waste), second-fix electrics (fitting lights, switches, heated towel rail), and silicon sealing and finishing. Albert Construction manages all trades — there is no separate plumber, tiler, or electrician to coordinate.

A small bathroom (typically 2–4m²) renovation costs £4,500–£8,000 in London for a mid-range finish. This covers full strip-out, tanking, tiling, a new bath or shower enclosure, basin, toilet, heated towel rail, and all plumbing and electrical work. Budget finishes (basic sanitaryware from B&Q, standard porcelain tiles) sit at the lower end; premium finishes (large-format stone-effect tiles, freestanding bath, underfloor heating) push costs toward £10,000–£14,000+.

An en-suite conversion typically costs £5,000–£9,000 in London, depending on whether a partition wall needs to be built and whether plumbing needs to be extended from the main stack. An en-suite added within a loft conversion (where we are already doing first-fix plumbing as part of the loft) is typically at the lower end of this range because the plumbing runs are already being made. A standalone en-suite conversion in an existing bedroom requires more structural and plumbing work.

A wet room costs £6,000–£12,000 in London — more than a standard shower room because the floor requires a built-up screed with a linear or centre drain, and the entire floor and lower walls must be tanked to a higher specification. The floor also needs to be cut and made good around the new drain. Wet rooms are increasingly popular in loft conversion en-suites where space is limited and a traditional shower tray and enclosure would be tight.

Yes — we are happy to work with customer-supplied sanitaryware, tiles, and fixtures. Many of our clients purchase their own products from suppliers like Victorian Plumbing, Bathstore, or Porcelanosa. We advise on specification requirements (minimum tile thickness for wet areas, compatible basin waste sizes, etc.) before you order. We can also source and supply everything if you prefer — we have trade accounts and can often supply quality products at competitive prices.

A full bathroom renovation typically takes 7–12 working days from strip-out to snagging. Day 1–2: strip-out, make good any structural issues. Day 3: tanking and first-fix plumbing. Day 4: first-fix electrics. Day 5–6: plastering and drying time. Day 7–9: tiling. Day 10–11: second-fix plumbing and electrics. Day 12: snagging and final clean. The bathroom is generally unusable for 8–10 days, which we discuss during survey so you can plan accordingly.

No — bathroom renovations are covered by permitted development and do not require planning permission. However, if your property is listed, any internal alterations (including new tiling or fixtures) may require listed building consent. Building regulations approval is required for certain elements: notifiable electrical work (new circuits or consumer unit work), new plumbing connections to a soil stack, and in some cases underfloor heating. We ensure all notifiable work is properly certified as part of our service.