Bathroom Renovation in Wales

Relocating a toilet means rerouting the soil pipe and adjusting floor levels; moving a shower means new drainage falls and full re-waterproofing. Either typically adds a meaningful share of the total budget and extra days of work. If your budget is tight, keeping the existing layout is the single most effective cost-saver.

Not the one being renovated — water is disconnected and the floor is out of service for most of the project. If it is your only bathroom, ask the contractor to sequence works so the toilet is usable overnight where possible, and plan for gym showers or neighbours for the tiling and waterproofing week.

Buying your own toilet, vanity, and taps gives price control; buying through the contractor makes them responsible for defects, wrong sizes, and delivery timing. A common middle path: contractor supplies everything built-in or warranty-critical (shower valves, waste, membrane), you supply visible items like mirrors and accessories. Whoever supplies an item owns replacing it if it arrives damaged.

If the renovation strips the shower area back to the substrate, waterproofing must be redone — a failed membrane is the most expensive bathroom defect there is, because the fix means demolishing finished tiling. Several countries regulate wet-area waterproofing explicitly. Never let a contractor tile directly over an old or damaged membrane.

Strip-out, then first-fix plumbing and electrics (pipes and cables in walls), then substrate preparation and waterproofing, then tiling, then second-fix (toilet, vanity, taps, shower screen, lights), then silicone and snagging. If a quote or schedule doesn't follow this order, question it — out-of-sequence work is how leaks and redone tiles happen.

Checkatrade's 2025-26 guide puts a new bathroom including materials at £5,500-£8,000 with an average around £7,000; budget refits can come in near £3,000-£4,500 and large or high-end bathrooms run £14,000+. Fitting labour alone is typically £1,500-£4,000 depending on scope.

A straightforward refit takes about 5-10 working days; layout changes or first-floor drainage rework push it to two to three weeks. Book fitters ahead — good bathroom installers in most UK cities carry 4-8 week lead times.