How long a bathroom renovation actually takes
A standard Berwick bathroom runs 15 to 20 working days on site. The order the trades follow, the two cure waits nobody can shorten, and what causes the delays.
Three to four weeks on site is the honest answer for a room that keeps its footprint, of which 15 to 20 are working days. The two weeks people quote in conversation only holds where nothing moves, nothing turns up behind the wall, and every fitting is already stacked in the garage.
Two fixed waits set the floor under any timeline and no amount of labour shortens either: the waterproofing cure and the adhesive cure. Everything else in the calendar is the order the trades have to run in, because each one needs the one before it finished and dry.
How long does each type of job take?
| Job | Working days on site | Elapsed time |
|---|---|---|
| Shower rebuild only, same footprint | 5 to 8 | 1.5 to 2 weeks |
| Small bathroom, same footprint, no plumbing moved | 10 to 13 | 2 to 3 weeks |
| Standard bathroom, one or two fixtures relocated | 15 to 20 | 3 to 4 weeks |
| Bathroom plus separate toilet merged into one room | 20 to 26 | 4 to 5.5 weeks |
| Heritage house, timber floor rebuilt, layout changed | 25 to 40 | 5 to 8 weeks |
| Ensuite upgrade in a post 2010 estate home | 8 to 12 | 2 to 2.5 weeks |
Elapsed time runs longer than working days because of weekends, the cure waits and the gaps between trades. A crew that says fifteen days means fifteen working days, so ask which one they are quoting.
What happens on each day of a standard job?
- Day 0, before anyone arrives. Asbestos sample taken and the laboratory result returned if the house dates from before 1990. This happens ahead of demolition, never during it.
- Days 1 to 2, strip out. Fittings out, tiles off, wall sheet off, floor up. Floor protection laid through the house first. The skip arrives on day 1 and is usually gone by day 3.
- Day 2, the inspection that changes the quote. With the walls open the plumber and the carpenter see the framing, the pipework and any rot under the old shower. Any variation is agreed in writing here, before the next trade starts.
- Days 3 to 4, plumbing rough in. Pipes set for the new fixture positions, the shower waste and floor waste set to the falls the tiler will work to. Electrical rough in runs alongside: new circuits, the exhaust duct run out through the eave or roof, downlight positions set.
- Days 4 to 5, carpentry and framing. Noggins for the vanity, the towel rails, the shower screen and any grab rails. Hobs built. On a timber floor this is where the level entry or the linear grate is set into the joists.
- Days 5 to 6, sheeting and screed. Wet area sheet fixed, joints set, floor screeded to the falls. The screed has to be dry before waterproofing goes on.
- Days 7 to 8, waterproofing. Primer, bond breakers at every junction, then two coats of membrane with the coats separated by their own drying time.
- Days 9 to 10, waterproofing cure. Nothing happens in the room. This is the wait most timelines hide.
- Days 10 to 14, tiling. Floor first then walls, or the reverse depending on the tiler. Large format tile is slower. Walls out of square are slower again.
- Day 15, grout and silicone. Grout after the adhesive has cured, then silicone into every internal corner and change of plane.
- Days 16 to 17, fit off. Plumber returns for tapware, the toilet, the vanity and the waste. Electrician returns for the fan, lights, heat lamp and switches, and issues the safety certificate.
- Day 18, shower screen measure. The screen is measured once the tiling is finished, because the tiled opening is never exactly the drawn size.
- Days 19 to 20, screen installation, painting, final clean and handover. A custom frameless unit comes back seven to ten working days after the measure, which is why it often lands after everything else is done.
The two waits that cannot be compressed
Waterproofing. Two coats, each needing its own drying time, then a cure before tiling. Allow two to three full days from the last coat, longer in a cold still Berwick winter where a closed bathroom with no airflow stretches it out. Tiling onto a membrane that has not cured is the single most common cause of a shower that fails inside five years.
Adhesive and grout. Tile adhesive has to set before grout goes in, and silicone has to cure before the shower is used. The room is usually usable 24 to 48 hours after grouting, and the standard advice is to keep water off a new shower for the first few days.
Anyone offering to waterproof and tile on the same day is skipping a cure. That shortcut is behind most of the failures described on signs your shower is leaking.
What actually causes the delays?
| Cause | Days lost | How it gets avoided |
|---|---|---|
| Fittings ordered late | 5 to 20 | Every tap, tile, vanity and screen selected and on site before demolition |
| Asbestos found mid demolition | 3 to 10 | Sample tested before the first day, not after |
| Rot in the floor under the old shower | 2 to 5 | Expected on any shower over 15 years old and allowed for in the contingency |
| Custom shower screen lead time | 5 to 10 | Measured the day tiling finishes, not the week after |
| Tile out of stock or a short run | 5 to 15 | Whole quantity plus ten per cent ordered and delivered before the start date |
| Variation waiting on a decision | 1 to 5 | Owner reachable in the first week, decisions made within a day |
| Permit needed and not applied for | 10 to 25 | Settled with a building surveyor before the start date |
| Cold weather slowing the membrane | 1 to 3 | Extra day allowed for in winter, ventilation and heating used |
The largest of these is the owner’s own selections. A crew cannot tile a room while the tile is still at the supplier.
The permit line is the one that surprises people, because it is decided weeks before anyone books a skip. Whether your job needs one at all is covered in what the law requires.
How your part of Berwick changes the timeline
In the 1970s and 1980s brick veneer belt the asbestos test sits ahead of everything else. Booking it late is the difference between a three week job and a five week one, because the laboratory turnaround lands on top of the schedule rather than inside it.
The early 1990s estates run closest to the book. The plumbing is sound and the room does not need to move, so a strip out and rebuild there is genuinely a three week job once the fittings arrive on time.
In the heritage core near High Street the floor is the variable. Walls out of square slow the tiler, uneven floor levels mean packing and screeding, and a level entry shower means structural carpentry. Add a week to any figure quoted for a flat slab house.
In Minta Farm, Berwick Waters and Alira the house is new and the trades have clean access, but an ensuite upgrade carries exactly the same cure waits as a full bathroom. A small room does not shorten a membrane.
Can you live in the house while it happens?
A single bathroom household needs a plan for the tiling and cure weeks, which is roughly days 7 to 15. In a post 2010 estate home there is usually an ensuite to fall back on. In the 1980s belt the separate toilet stays usable through most of the job whenever it is not part of the scope, which is one practical argument for leaving it where it is.
The price bands for each of these job types are on what a bathroom renovation costs in Berwick. Send your room size and the age of the house through the quote form and you get a written fixed price with a start date and a working day count, with a reply within one business day.