If you’ve ever asked a bathroom fitter “how long will it take?”, you’ve probably heard some version of: “Depends what we find.” Annoying answer, but it’s also the honest one.
Most homeowners aren’t asking because they’re impatient. You’re asking because you need to plan life around it: work, kids, school runs, whether you need to stay with family, and how long you’ll be brushing your teeth in the kitchen.
This is a realistic, UK-homeowner timeline for a bathroom renovation — and the bits that usually stretch it.
The quick answer (with a reality check)
For a straightforward like-for-like bathroom renovation, a common range is:
- About 7–10 working days on site
For a bigger renovation (layout changes, moving plumbing, more carpentry/tiling, older-house surprises):
- About 2–3 weeks on site
For a full strip-out with complications (structural repairs, rotten floors, awkward access, specialist finishes):
- 3–5+ weeks isn’t unusual
The biggest mistake is believing a “5 days, start to finish” promise without asking what’s been excluded.
Renovation vs refurb: the timeline difference
If you’re doing a refurb (new suite, new tiles, new flooring, like-for-like positions), the work is more predictable.
If you’re doing a renovation (moving the toilet, changing the shower type, building niches, changing walls, underfloor heating, relocating the radiator), you’re adding tasks that need drying time, extra trades, and more chances for delays.
A realistic bathroom renovation timeline (step-by-step)
Phase 0: Before anyone turns up (1–4 weeks, but not “on site”)
This is the bit people forget when they say “it’ll take two weeks.” The on-site work might be two weeks, but the project starts earlier.
- Choosing the suite, tiles, taps, shower, vanity, mirror, lighting
- Confirming what’s included (skip hire, making good, painting, waste removal)
- Ordering materials (some items are next-day, others are 2–8 weeks)
- Booking trades and agreeing start date
If you want the job to run smoothly, don’t start demolition until the key items are physically in your house.
Phase 1: Strip-out and first look (Day 1)
- Remove old suite
- Lift flooring if needed
- Expose pipework and electrics
This is often when the “surprises” appear: damp, rotten floorboards, bodged pipework, cracked plaster, or a previous leak that’s been hidden for years.
Phase 2: First fix plumbing and electrics (Days 2–4)
- Move pipework (if layout changes)
- Set shower valve positions
- Prep wastes and soil connections
- Electrical first fix (fans, lighting, shaver socket, mirror power)
If you’re changing from a basic shower to something more involved (rain head, concealed valve, pump, different pressure requirements), this is where the complexity shows up.
Phase 3: Floors, walls, and “making good” (Days 3–6)
This overlaps with first fix depending on the job.
- Repair/replace subfloor
- Board walls (especially around showers)
- Patch plaster / skim where needed
- Prep for waterproofing
Older homes in Hertfordshire often have uneven floors and walls. Getting things straight is time well spent — it affects how the finished bathroom looks.
Phase 4: Waterproofing (tanking) and drying time (Days 5–7)
If you’re having a wetroom or walk-in shower, proper waterproofing matters.
- Install the correct system (not a “bit of paint-on stuff and hope”)
- Allow curing/drying time as per manufacturer guidance
This is a common reason timelines slip: you can’t rush curing and still expect it to last.
Phase 5: Tiling (Days 6–10)
Tiling time varies massively depending on:
- Tile size (small tiles take longer)
- Patterns (herringbone takes longer)
- Niches, trims, mitres, and detailing
- How square the room is (most aren’t)
A bathroom can be tiled quickly, or it can be tiled well. Those aren’t always the same thing.
Phase 6: Second fix (Days 9–12)
- Fit toilet, basin/vanity, bath or shower tray
- Fit taps, wastes, traps
- Fit radiator/towel rail
- Fit mirror, lights, accessories
This is the satisfying part — but it only goes smoothly if the first fix was done properly.
Phase 7: Sealing, testing, snagging (Days 11–14)
- Silicone sealing (needs proper cure time)
- Pressure/leak checks
- Shower testing
- Snagging and finishing touches
Rushing this stage is how you end up with call-backs.
Why bathroom renovations overrun (the honest list)
Most delays come from a few predictable places:
- Hidden damage (rot, damp, old leaks)
- Out-of-stock items (tiles, vanity units, shower screens)
- Layout changes mid-job (“can we move that while you’re here?”)
- Drying/curing time (plaster, adhesives, tanking, silicone)
- Access issues (parking, narrow stairs, long carry distances)
- Old pipework that needs upgrading once exposed
None of these are “excuses” — they’re just the reality of working in real houses.
How to keep your renovation on track
If you want the shortest realistic timeline, focus on the basics:
- Decide everything early (suite, tiles, taps, lighting, mirror)
- Have key items delivered before day 1
- Avoid changing the layout unless you really need to
- Be realistic about drying time (rushing is false economy)
- Ask for a written schedule so you know what’s happening each day
If you only have one bathroom
This is the question people don’t ask until it’s too late.
If you have one bathroom, plan for:
- At least a few days without a working toilet/shower during strip-out and first fix
- A temporary plan (family nearby, gym membership, or a short stay)
A good installer will try to keep disruption down, but there are points where things have to be disconnected.
If you’re in Harpenden / Hertfordshire
If you’re in Harpenden, St Albans, Radlett, Welwyn Garden City, Borehamwood, Hemel Hempstead, Berkhamsted, or Leighton Buzzard, most bathroom renovations fall into the 7–10 working day range if it’s like-for-like and everything is on site.
If you’re changing the layout, upgrading the shower, or dealing with an older property, 2–3 weeks is often a more realistic expectation.
If you want, you can send over what you’re planning (bath to shower? moving the toilet? wetroom?) and I’ll tell you what usually adds time.
