Bathroom renovations go wrong in predictable ways. The brief was vague, the budget was optimistic, the wrong fitter was picked, the materials weren't ready in time, the family didn't realise they'd be without a bathroom for 10 days. None of that is hard to avoid if you plan properly — and the planning takes maybe 3–4 hours of focused thought, spread over a couple of weeks. This is the order we'd recommend tackling it.
Step 1 — Set the Budget Honestly
Pick a number you can actually afford before looking at quotes or showrooms. Without a number you'll be quoted whatever each fitter thinks you'll pay, and you won't have a reference point.
Realistic budget anchors for central Scotland in 2026:
- Under £3,500: Starter-tier refit. Probably wet wall over tile, mid-range fixtures, no major layout changes. Workable for a small flat bathroom.
- £3,500–£5,500: Premium-tier refit. Full wet wall, frameless walk-in, decent fixtures, potentially underfloor heating. The sweet spot for most family bathrooms.
- £5,500–£8,000: Premium-plus or Luxury entry. Wall-hung WC, designer brassware, premium finishes. Right for properties valued £200,000+.
- £8,000+: Luxury or Bespoke fit. Freestanding bath, specifier-grade fittings, full layout flexibility. Right for properties valued £300,000+.
Add 10% contingency on top of the number you settle on. Bathrooms surface unknowns occasionally (rotted joists, problematic waste runs) and a small buffer prevents stress.
Step 2 — Decide What You Want
Before the home visit, work through these questions with anyone else who'll use the bathroom:
- Bath, shower, or both? Be honest about what you actually use, not what you think you should keep for resale.
- Walk-in shower or shower-bath? Walk-in if you have the space and use the shower daily; shower-bath if you have kids or want the resale flexibility.
- Wet wall or tile? See our comparison. Wet wall for compact rooms with poor ventilation; tile for larger rooms or premium fits.
- Underfloor heating? See our guide. Worth it on tile floors; not really worth it on LVT.
- Layout changes? Moving the toilet or bath adds £300–£800 in plumbing labour. Worth doing if the layout is genuinely poor; not worth doing for cosmetic reasons.
- Storage? Vanity unit, mirror cabinet, niche shelving — decide before the design visit so the fitter can plan around it.
Step 3 — Get Quotes
Two or three quotes is the right number — one is too few (no comparison), four is too many (your time, theirs). Pick a mix:
- One local independent (fastest response, often the best value)
- One regional bathroom-specific company
- Optionally one chain (Wickes, Wren, Magnet) for the comparison reference point
Insist on a home visit rather than a "ballpark figure over the phone". Anyone quoting without seeing the room is guessing — and the quote will move when they actually visit. More on chain vs local here.
At the visit, ask: what's included, what's not included, what's the lead time, who actually does the work. Take notes. Compare quotes line-by-line on the same spec — not just total prices.
Step 4 — Check the Fitter
Before paying any deposit, verify:
- Electrical certification. The fitter should be (or employ) a NICEIC, SELECT or ELECSA-registered electrician. Bathroom electrics are notifiable in Scotland — you need a BS 7671 certificate at completion. More here.
- Insurance. Public liability insurance covering domestic install — minimum £2 million cover. Ask to see the certificate.
- References. Ask for 2–3 recent local jobs you can verify (Google reviews, in-person if practical).
- Trade body / consumer protection. Membership of a body like Trustmark, Checkatrade or TrustATrader provides a deposit protection / dispute resolution route.
If a fitter hesitates on any of these, walk away. Reputable fitters expect to be checked.
Step 5 — Confirm and Order
Once you've picked a fitter and signed the quote:
- Get the start date in writing. Verbal start dates slip; written ones don't.
- Confirm what materials are being ordered. Make sure the spec is correct — same colours, same brands, same sizes you discussed.
- Pay only the agreed deposit. Typically 10–25% on a quoted job. Anyone asking for 50%+ before any work has started is a red flag.
- Confirm the variation process. If you change your mind on a fixture mid-job, what's the cost mechanism? Get it in writing.
Step 6 — Plan the Disruption
A bathroom is out of action for the full install — typically 5–10 working days. Plan for it:
- Single-bathroom household? Arrange use of a friend's bathroom, gym shower, or relative's house. Don't assume you can "manage" without — you'll find out the hard way.
- Pets? Bathroom fitters don't work well with dogs underfoot. Plan for the pet to be elsewhere during work hours.
- Working from home? Strip-out is loud. Day 1 is essentially unusable for video calls; days 2–5 are quieter but not silent.
- Parking. Most fits need a fitter's van parked nearby for the duration. Check resident parking rules.
Step 7 — Walk-Through & Sign-Off
On the last day:
- Walk through the finished room with the lead fitter
- Test every tap, the shower, the toilet flush, the heated towel rail
- Check all silicone seals, especially around the bath, basin and shower tray
- Get the BS 7671 electrical certificate, manufacturer warranty paperwork, and care instructions for any specific finishes
- Note any snags — agree timeframe for fixing them before the final balance is paid
Don't pay the final balance until you're satisfied. Reputable fitters expect this; it's the model we work to on every job.
Related reading: our installation process, how to choose a bathroom fitter, full cost guide, and our modern bathroom service.
Want to start the process? Free home visit, written quote on the day, no obligation. Call 01236 801802 or request a quote online.