A 6m² entry-level family bathroom rebuild in a 1930s semi-detached home in Sale, Greater Manchester, for a working couple in their late thirties with two primary-school-age children — full strip-out of the existing tired 1990s suite, a galvanised-steel-to-copper replumb across the entire bathroom run priced inside the contract sum, a Trojan-style P-shaped 1700×850mm shower bath suited to both adult showering and child bathing with a hinged glass shower screen, a vanity unit with proper family-bathroom storage, a close-coupled WC, full Schluter Kerdi sheet tanking with a 24-hour flood test, ceramic 300×600mm wall tiles and 600×600mm floor tiles in a calm neutral palette, a Vogue UK chrome ladder-style heated towel rail on the home's existing wet system, a humidity-sensing ceiling extractor, and the original 1930s lath-and-plaster ceiling dropped and replaced with foil-backed plasterboard. Two-and-a-half-week programme delivered against fixed price; half-day Friday handback for the children's bath-time the same evening.
A working couple in their late thirties — one half of the couple a secondary-school teacher, the other a project manager at an NHS trust — lived with their two primary-school-age children, aged six and nine, in a 4-bed 1930s semi-detached home in Sale, Greater Manchester, which they had owned for six years. The house's original family bathroom upstairs was the only one in the property, had last been touched in a 1990s "stick a new suite over the old wallpaper" refresh, and was the room everyone in the family complained about. The brief was practical and unsentimental: take it back to the structural shell, replumb the whole thing (the existing pipework was the original 1930s galvanised steel and had been giving them increasingly low pressure on the basin tap for two years), put in a P-shaped shower bath that would serve both child bathing and adult showering without needing a separate enclosure, a vanity with proper storage for the family-bathroom mess, ceramic tile in a clean neutral palette, and a heated chrome towel rail. Programme contractually fixed at 2.5 weeks; family staying in the property throughout with the family decanting to the parents' downstairs WC and a temporary kitchen-sink wash arrangement we set up for the duration.
We were one of three contractors invited to quote. The homeowners had been recommended to us by their next-door neighbours, the family for whom we had delivered the Sale 1930s Semi Full Modernisation case study earlier in the year. Our price came in joint-cheapest at £8,200, against an £8,400 leading offer and a £9,100 third offer. We won the work because our quotation was the only one to (a) survey the existing 1930s galvanised steel pipework at quotation stage and price the full bathroom replumb (incoming hot and cold to all three appliances in copper distribution, with PEX where appropriate) inside the contract sum rather than as a "subject to existing system condition" provisional, (b) cost the original lath-and-plaster ceiling drop and foil-backed plasterboard replacement as a defined workstream rather than as a "may need replacement, hourly rate to apply" line, and (c) carry the same Schluter Kerdi sheet tanking and 24-hour flood test discipline as the rest of our bathroom-category work to a £8,200 family bathroom rebuild without the discipline scaling down with the budget.
Practical completion was certified at 12.30pm on the contracted Friday. The homeowners had requested a half-day handback rather than a full Friday afternoon so that the children could have their first bath in the new room the same evening as part of their normal routine. Builders clean was completed Friday morning; manufacturers' warranties and the tanking flood-test photo documentation were handed over at lunchtime; the children's bath-time at 6pm Friday was the first use of the new bathroom. The teacher half of the couple sent us a photograph the following morning of both children sat in the bath with a foam-letter alphabet, with a one-line message: "Worth every penny."
The brief came from the homeowner couple directly across two pre-construction sessions, a practical brief built around a working family with one bathroom, no money to waste, and four weekends a month they would rather spend doing things other than being decanted to a relative. Priorities, in their stated order:
A 2.5-week £8,200 family bathroom rebuild in a 1930s semi is the most accessible price point we work at in the bathroom category, and it carries its own discipline that the higher-tier projects do not. Old galvanised pipework has to be priced before bid because pulling it out is the difference between a contained project and a rolling variation; the lath-and-plaster ceiling has to be priced as a defined workstream because a half-replaced ceiling is worse than a fully-replaced one; the family of four are living in the property without a usable bathroom for two and a half weeks, and the decant arrangements have to feel manageable, not punitive. Every constraint had a workaround that had to be planned before site possession.
The two competing quotes left the existing 1930s galvanised steel pipework as a "subject to existing condition" provisional. We surveyed the pipework at quotation stage with the homeowner showing us the pressure-drop on the basin tap, identified the galvanised legacy on hot and cold runs from the airing cupboard, and priced the full replumb (incoming hot and cold to all three appliances in copper distribution with PEX where appropriate, isolation valves at every appliance, all waste tied cleanly into the existing soil stack) inside the contract sum. Pressure-tested at first-fix and again at second-fix; basin-tap pressure restored to manufacturer's spec at handback.
The P-shaped shower bath is the practical compromise for a one-bathroom family home. 1700×850mm at the foot end gives a proper standing area for adult showering with a hinged glass screen; 700mm at the head end keeps the bath length usable for children at bath-time. Trojan-style stone-resin construction, lighter than cast-iron with no joist-doubling required. Bath sat on adjustable feet with a chromed bath panel kit. Thermostatic shower valve with TMV3 limiter capping at 45°C for child-safe use (NHS D-08 standard). Hinged screen folds against the wall when the bath is in use without the shower running.
The two competing quotes treated the existing 1930s lath-and-plaster ceiling as "may need replacement, hourly rate to apply if drops". 1930s lath-and-plaster ceilings on first floor bathrooms are almost always at end of life: cracked, bowed, often patched with paint over the worst of the cracks. Half-replacing a lath-and-plaster ceiling produces a worse outcome than a full replacement (the visible joint between old and new always shows). We priced the full ceiling drop and foil-backed plasterboard replacement as a fixed workstream within the contract sum. Skim-finished and decorated week 2; the homeowners told us at handback that the ceiling alone made the room feel like a different bathroom.
The same Schluter Kerdi sheet tanking system across the floor and walls 200mm above bath rim and basin splashback that we use on luxury master ensuites and accessibility-led wet-rooms. The same pre-formed Kerdi-Kereck and Kerdi-Kerab corner pieces sealed at every junction. The same 24-hour flood test held as a contractual hold-point: bath waste blocked, water filled to the lip of the cove-skirting, left in place for 24 hours; passed first time with no measurable level drop. The discipline doesn't change with the budget; only the products that sit on top of it do.
The family stayed in the property for the full 2.5 weeks. Decant arrangements: the existing downstairs WC remained available throughout; we installed a temporary kitchen-sink wash arrangement (extension hose for hot water, a freestanding fold-up wash stand for the children's faces and teeth) on the Sunday evening before mobilisation; the children's bath-time decamped to the parents' grandparents' house in Stretford one evening a week, with the rest of the bathing managed in the kitchen. Daily 4pm WhatsApp progress photos to both parents. Quiet hours observed before 8am and after 4.30pm so the school-run morning routine and homework slot were undisturbed. Single-point-of-contact site manager met both parents in person on day one.
The homeowners' specific request: they wanted the children's bath-time at 6pm the Friday evening of handback to be the first use of the new bathroom, not a Saturday-morning anti-climax. Programmed accordingly: snag round Thursday afternoon with both parents present, builders clean Thursday evening through to Friday morning, manufacturers' warranties and the tanking flood-test photo documentation handed over at 12.30pm Friday lunchtime. The children's bath-time the same evening was attended by the older one with a foam-letter alphabet (he is six) and the younger one shouting at him to share (she is four). The teacher's photo the following morning was the testimonial.
Entry-level family bathroom rebuilds at the £8k price point succeed or fail on three things: how the existing legacy services are priced before bid, how the same tanking discipline is held without scaling it down with the budget, and how a family of four are kept comfortable in their own home for two and a half weeks. Our approach was built around four working disciplines and one family-life discipline.
Galvanised-to-copper replumb costed inside the contract sum. The two competing quotes left the existing 1930s galvanised pipework as a "subject to existing condition" provisional. We surveyed the pipework at quotation stage with the homeowner present, demonstrated the basin-tap pressure drop ourselves, and priced the full bathroom replumb inside the contract sum. The competing quote that came in £200 cheaper would have hit the homeowners with a replumb variation in week 1; ours did not.
Lath-and-plaster ceiling priced as a defined workstream. 1930s lath-and-plaster ceilings on first-floor bathrooms are almost always at end of life. The two competing quotes both flagged this as "hourly rate to apply if drops". We priced the full ceiling drop and foil-backed plasterboard replacement as a fixed workstream within the contract sum. The Sale 1930s Semi Full Modernisation we delivered for the homeowners' next-door neighbours earlier in the year used the same approach across all the ceiling drops in that larger project; we carried the same discipline into this smaller one.
Tanking and flood-test discipline held without scaling. The same Schluter Kerdi sheet tanking system, the same 24-hour flood-test contractual hold-point, the same photo documentation in the handover folder as we use on luxury master ensuites and accessibility-led wet-rooms. A bathroom at £8,200 has the same risk profile as a bathroom at £29,500 if it leaks into the kitchen ceiling below; the budget doesn't change the discipline.
Same brand discipline at proportional spec. Hansgrohe Talis E thermostatic shower valve at this tier (instead of AXOR Citterio at Wilmslow's tier), Vogue UK heated towel rail (same as Wilmslow and Didsbury), Schluter Kerdi tanking (same as the entire bathroom-category set), white standard-format ceramic wall tile from a quality supplier rather than large-format porcelain. Fewer products, all from the same suppliers we trust at higher tiers.
Family-life decant for two-and-a-half weeks. Existing downstairs WC retained throughout. Temporary kitchen-sink wash arrangement installed before mobilisation. Children's bath-time decamped to grandparents one evening a week. Daily 4pm WhatsApp progress photo to both parents. Quiet hours observed before 8am and after 4.30pm. Single-point-of-contact site manager met the parents on day one. The homeowners told us the decant felt manageable and the children barely noticed the disruption.
Twelve and a half working days from key handover to the children's bath-time. A Trafford skip permit secured pre-mobilisation, a strip-out and replumb week, a tanking-and-tile week and a half-day Friday handback for 6pm bath-time.
Site mobilisation Monday morning at 8am. Trafford Council skip permit on the highway in place from Monday. Dust-sheet protection from the front door up the stairs to the bathroom; shoe protectors at the threshold; single-point-of-contact site manager met both parents in the kitchen at 8.30am. Strip-out of the existing 1990s suite Monday-Tuesday: bath, shower-screen, basin, close-coupled WC, dated ceramic wall tile, vinyl floor, dropped suspended ceiling all bagged or skipped. Original 1930s lath-and-plaster ceiling dropped Wednesday morning under sheet protection, debris bagged. Galvanised steel pipework chased back to the airing cupboard Wednesday-Thursday and replaced with copper distribution and PEX where appropriate; isolation valves fitted at every appliance position. Foil-backed plasterboard ceiling fixed Friday morning, taped and jointed Friday afternoon ready for skim coat in week 2.
Plasterer in Monday for the skim coat to ceiling and walls; left to dry Monday-Tuesday. Schluter Kerdi sheet tanking installed Wednesday morning across the floor and walls 200mm above the bath rim and the basin splashback, with pre-formed Kerdi-Kereck and Kerdi-Kerab corner pieces at every junction. 24-hour flood test commenced Wednesday afternoon: bath waste blocked, water filled to the lip of the cove-skirting, left in place; passed Thursday afternoon with no measurable level drop, photo documentation completed. Standard ceramic 300×600mm white matt wall tile installed Thursday afternoon and Friday: bath and basin walls full-height, neutral grout, bullnose trim at edges. P-shaped shower bath delivered Friday afternoon and dry-fitted into position with the chromed bath panel kit.
Floor tile installed Monday morning: 600×600mm warm grey-stone-effect ceramic floor tile, neutral grout, lippage held within trade tolerance. P-shaped shower bath finally seated Tuesday morning with bath waste connected and pressure-tested. Hinged 6mm toughened glass shower screen installed Tuesday afternoon. Hansgrohe Talis E thermostatic shower valve commissioned and TMV3 temperature-tested at 45°C maximum at the showerhead with a UKAS-traceable thermometer. Vanity unit with countertop basin and demisting LED-edge mirror installed Wednesday morning. Close-coupled WC seated and pressure-tested Wednesday afternoon. Vogue UK chrome heated towel rail connected to the wet heating system Thursday morning. Humidity-sensing ceiling extractor commissioned. Snag round Thursday afternoon with both parents present: 7 minor items closed by Thursday evening. Builders clean Thursday evening through to Friday morning. PC certificate issued at 12.30pm Friday lunchtime; manufacturers' warranties and the tanking flood-test photo documentation handed over at the same time. Bath-time at 6pm Friday evening was the first use of the new bathroom.
The technical detail behind a 6m² £8,200 family bathroom rebuild built to the same tanking, replumb and flood-test discipline we apply to luxury master ensuites at four times the budget — just with a different set of products on top of it.
Original 1930s galvanised steel pipework chased back to the airing cupboard and replaced with copper distribution and PEX where appropriate. Isolation valves at every appliance. Hot and cold supply to bath, basin and WC. Pressure-tested at first-fix and at second-fix. Basin-tap pressure restored to manufacturer's spec.
Original 1930s lath-and-plaster ceiling dropped under sheet protection, debris bagged for skip. Replaced with foil-backed plasterboard, taped, jointed, skim-finished. Salvageable plaster cornice junction at the master bedroom side preserved where possible.
Full Schluter Kerdi sheet tanking system across floor and walls 200mm above bath rim and basin splashback. Pre-formed Kerdi-Kereck and Kerdi-Kerab corner pieces sealed at every junction. 24-hour flood test held as contractual hold-point; passed first time. Photo documentation in handover folder.
Trojan-style 1700×850mm P-shaped shower bath in stone-resin construction, foot end at the wall for adult showering area, narrowing to 700mm at the head end for child bathing position. Adjustable feet, chromed bath panel kit. Bath waste run cleanly to existing soil stack.
Hansgrohe Talis E thermostatic shower valve in chrome with TMV3 temperature limiter, fixed rainfall head plus hand-held on slider rail, hinged 6mm toughened glass shower screen. Commissioned at 45°C maximum at the showerhead per NHS D-08 standard for child-safe use.
800mm wide vanity unit in matt grey with countertop ceramic basin, soft-close drawer banks (towels, toiletries, children's bath toys), demisting LED-edge mirror above. Mid-range supplier (Crosswater range), built for use rather than for showpiece.
White standard close-coupled WC with dual-flush soft-close seat at standard 410mm seat height. Sized for both adult use and children's reach without any accessibility adaptations. Pressure-tested at handback.
300×600mm white matt ceramic wall tile to bath and basin walls full-height, 600×600mm warm grey-stone-effect ceramic floor tile, neutral grout, simple bullnose trims at edges. Lippage held within trade tolerance. Cheap to repair if a child breaks one.
Vogue UK chrome ladder-style heated towel rail on the wall opposite the bath, connected to the home's existing wet heating system with a thermostatic radiator valve. Sized to take both parents' towels plus the two children's.
Mains-powered ceiling extractor fan with humidity sensor and 15-minute over-run, ducted to the existing soffit vent. Triggers automatically on humidity threshold. Commissioned and humidity-test verified at handback.
Hansgrohe Talis E thermostatic shower valve commissioned at 45°C maximum at the showerhead per NHS D-08 standard for child-safe use. Temperature-tested at handback with a UKAS-traceable thermometer; reading logged in handover folder.
Replumbed copper distribution pressure-tested at first-fix Wednesday week 1 and again at second-fix Tuesday week 3. Bath waste, basin waste and WC supply all pressure-tested. Test certificates in handover folder.
A 6m² family bathroom in a 1930s semi-detached home in Sale delivered against a 2.5-week fixed-price contract with no variation orders, the original 1930s galvanised steel pipework replaced with copper distribution priced inside the contract sum, the original lath-and-plaster ceiling dropped and replaced with foil-backed plasterboard as a defined workstream rather than as a TBC variation, the Schluter Kerdi tanking system passing its 24-hour flood test on first attempt, the Hansgrohe Talis E thermostatic shower valve commissioned at the NHS D-08 child-safe 45°C cap, the basin-tap pressure restored to manufacturer's spec after two years of slow drip-feed, the half-day Friday PC certified at 12.30pm and the children's bath-time at 6pm the same evening as the first use of the new bathroom.
This Sale Family Bathroom is the most accessible price point in our bathroom-category portfolio, alongside the Hale Wet-Room Conversion (£14,800 accessibility-led for an older couple), the Didsbury Master Ensuite (£18,500 reconfiguration for a working couple) and the Wilmslow Spa Bathroom Suite (£29,500 luxury master ensuite for an affluent couple). Same Schluter Kerdi tanking, same 24-hour flood-test contractual hold-point, same TMV3 commissioning discipline, same handover-folder photo documentation, same daily 4pm progress updates. The discipline doesn't scale down with the budget; only the products that sit on top of it do. The Sale 1930s Semi Full Modernisation we delivered for the homeowners' next-door neighbours earlier in the year was a 14-week period modernisation at £75,000; this Sale Family Bathroom was 2.5 weeks at £8,200, recommended by those same neighbours, and the family back in their bathroom on the contracted Friday evening for bath-time.
We have one bathroom in our 1930s Sale semi, two children aged six and nine, and an £8,000 budget that did not have a lot of room for surprises. Our next-door neighbours had Building Group do their full-house modernisation last year and they recommended them to us when our bathroom finally needed gutting. We tendered three contractors. Building Group came in joint-cheapest at £8,200. We picked them because their quotation was the only one to survey the existing 1930s galvanised pipework at quotation stage and price the full bathroom replumb inside the fixed price rather than as a "subject to existing condition" provisional, the only one to price the lath-and-plaster ceiling drop and replacement as a defined workstream rather than as "may need replacement, hourly rate to apply", and the only one to use the same Schluter tanking system and 24-hour flood test that they would use on a thirty-thousand-pound bathroom. We had a daily four o'clock photo update on WhatsApp every day for the entire two and a half weeks. The team set up a temporary kitchen-sink wash arrangement on the Sunday before they started so we and the kids weren't completely without somewhere to wash. They worked around our school-run mornings and the kids' homework hour. They handed back the bathroom at half past twelve on the Friday lunchtime so the children could have their bath-time at six o'clock the same evening, which they did, with a foam-letter alphabet, and the basin tap that had been at a slow drip for two years actually had pressure for the first time in years. We sent the team a photograph the next morning. We have already passed Building Group's number to two friends in Stretford who are about to start similar projects.
If you're a working family with one bathroom that needs gutting on an £8k to £12k budget, an older home with original galvanised pipework or a 1930s lath-and-plaster ceiling that needs costing properly before bid, a P-shaped shower bath fit-out for adults and kids, or any practical family-bathroom rebuild where the priorities are quality, sensible price and getting it done in two and a half weeks, we'll come out for a free home visit, walk the existing room with you, and put a fixed-price quotation on your desk — with the replumb, the ceiling drop, the tanking and flood test, the brassware specification, the tiling and the family-decant arrangement all costed in.
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