Bathroom Renovation in Swindon

Around 10-20% is normal, sometimes more where custom vanities or imported fittings must be ordered up front — in that case pay the supplier invoice share, not a round 50%. Hold 5-10% back until the room has been used for a week or two and the snag list (grout gaps, silicone, door alignment) is closed.

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.

It can work on sound, well-bonded wall tiles and saves strip-out cost, but it fails on floors with movement, adds thickness that fouls doors and fittings, and hides the condition of the substrate and membrane. Most renovators strip back in wet areas — if a contractor proposes tile-over-tile in the shower zone specifically, treat it as a cost-cutting red flag.

A like-for-like refit usually needs no permit in Swindon, but moving drainage, altering walls, or adding a new bathroom typically does under your local building rules — and electrical and plumbing work must be done by qualified or licensed trades in most countries. Ask your contractor to name the specific approval needed; see the country checklist on this page for what applies where you live.

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.