Bathroom Renovation Timeline in Ireland: How Long It Really Takes

Last updated: 17 July 2026 · By Mossy Tariq, Founder — Property Blueprint Co.

Ask how long a bathroom renovation takes in Ireland and the answer that comes back is a build time — two weeks, four weeks, six. That number describes the days trades spend in the room. It says nothing about the weeks that run before the first fixture is touched, and that invisible first clock is what usually decides when the bathroom is finished.

A bathroom renovation timeline in Ireland is really two timelines running side by side: the planning and procurement timeline, covering the exemption check, the Commencement Notice where one is needed, and the lead time on sanitaryware, tiles, and made-to-order pieces; and the on-site build timeline, covering strip-out through tanking and tiling to the snag list. Homeowners plan around the second one and get blindsided by the first.

The bathroom build takes weeks. The bathroom renovation takes as long as its slowest timeline — and that is rarely the build.

This guide sets out both timelines — the week-by-week build schedule and the approvals, ordering, and booking clock that runs alongside it. The strict sequence behind the build weeks is in the bathroom renovation order of trades in Ireland, and what each stage costs is in the bathroom renovation cost guide for Ireland — or, for a compact room, the small bathroom renovation cost bands.

Why there are two bathroom renovation timelines, not one

Because a bathroom renovation has two separate clocks, and only one is visible once the old suite is in the skip. The build timeline is what a homeowner watches — strip-out, first fix, tanking, tiling, second fix, snag list. It is countable in days and produces visible progress.

The procurement and approvals timeline is invisible by comparison. It covers whether a Commencement Notice has to be lodged before anything starts, the specification of every fixture and tile, the lead time on anything that is not on a shelf in Ireland, and the booking window for each trade. None of that puts a trade in the house, which is exactly why homeowners overlook it — there is nothing to watch, so there is nothing to remind them it is running.

A bathroom sharpens the problem more than any other room, because its build is the most sequence-dependent in the house. Five trades work in strict order, each waiting on the one before. A missing basin or an undelivered tile does not delay one trade; it idles the entire chain behind it, and a stalled chain is where a two-day gap becomes a two-week one.

How long does a bathroom renovation take in Ireland, week by week

For a full bathroom renovation with no layout change, the on-site build in Ireland runs roughly three to six weeks from strip-out to snag list. A like-for-like supply-and-fit swap by a specialist crew can compress to one to two weeks, and a moved layout or wet-room conversion pushes past six. The standard project runs week by week like this.

1. Days 1–3 — strip-out and demolition. The old suite, linings, and floor come out, exposing the structure — and exposing the hidden conditions, damp or perished pipework, that turn into a variation nobody quoted for.
2. Week 1 — building work and first-fix carpentry. New or altered walls, the shower former, and the substrate are built, and where the work is a material alteration to the structure, the Commencement Notice lodged 14 to 28 days earlier is what makes this start date legal.
3. Weeks 1–2 — plumbing first fix. The supply, the waste and drainage, and the fixture positions are set inside the open structure, and this stage grows sharply if any fixture has moved.
4. Week 2 — electrical first fix. A Safe Electric registered electrical contractor runs the cabling for lighting, the extractor fan, the heated towel rail, and any underfloor heating while the walls are still open.
5. Weeks 2–3 — linings, substrate, and tanking. The wet-area linings go on and the waterproofing membrane is applied and left to cure — the hold point of the entire build, because a tiled-over membrane can never be inspected again.
6. Weeks 3–4 — tiling. The tiler lays the floor and walls over the verified tanking, cuts the falls into the floor, and finishes grout and silicone, with cure time built in before anything is fixed through the surface.
7. Weeks 4–5 — second fix and completion certificates. The plumber and electrician return to fit and connect the suite, the shower, the fan, and the lights, with the electrical Completion Certificate issued for the work.
8. Weeks 5–6 — glazing, paint, and snag list. The shower screen is measured and fitted against the finished tiling, the painting is completed, and every element is checked against a snag list before final payment at practical completion.

Do you need planning permission for a bathroom renovation in Ireland

Almost never — and that single fact is why the bathroom's paperwork timeline is short but not zero. An internal bathroom renovation is exempted development provided the use of the house and its external appearance are unchanged: replacing the suite, re-tiling, moving fixtures within the existing room, none of it engages the planning system. Citizens Information sets out the confirmed position, and the full exemption map is in the planning permission guide for Irish renovations.

The filing that does touch a bathroom is the Commencement Notice. Where the renovation is a material alteration to the structure — moving the soil pipe, altering walls, changing the drainage — a Commencement Notice must be lodged with the local authority's Building Control between 14 and 28 days before work begins, while a like-for-like fixture swap is generally exempt. That window is pure timeline: lodge it late and the start date moves regardless of how ready the trades are.

Why sanitaryware and tile lead times set the real finish date

Irish bathroom and tile suppliers hold standard suites, sanitaryware, and stocked tiles for delivery within roughly three to five working days — and that speed is the trap, because it convinces homeowners the whole specification works that way. It does not. Special-order and made-to-order items — a specific vanity unit, a non-stock tile from a Spanish or Italian range, a made-to-measure shower screen — carry lead times quoted in weeks, which suppliers state sit outside their standard delivery windows and move with availability.

The shower screen compounds the problem from the other side of the build. A made-to-measure screen can only be measured against the finished, cured tiling — week four or five of the build — and fabrication then takes its own one to two weeks. That gap is a scheduled stage, not a delay, but only if it was planned. On a mid-range renovation that Irish specialists price around €12,000, the difference between an ordered-at-design-lock bathroom and an ordered-as-needed one is routinely a month of finish date.

The discipline is the same one that governs every renovation: order the long-lead items the day the design is locked, not the day the builder asks where the basin is. Every item on that order sheet sets both the price and the wait.

Where the registered trades set the pace

Two of the trades in an Irish bathroom cannot be substituted, and their availability is part of the timeline. Electrical work must be carried out by a Safe Electric registered electrical contractor — carrying out restricted electrical works without registration has been illegal since 2013 — who issues the Completion Certificate the room's paper trail depends on. Any gas work, such as relocating a gas boiler that shares the bathroom wall, must by law be carried out by a Registered Gas Installer on the RGI register. Both are checkable online before booking, and neither trade can be swapped for whoever is free that week.

That is why the booking timeline belongs with the ordering timeline, not the build. The registered trades are booked before the first one starts, sequenced against the tanking hold point set out in the bathroom waterproofing and tanking guide. The Competition and Consumer Protection Commission makes the contractual side of the same point: agree the programme, the price, and how any variation will be priced in writing before work starts, because a timeline that lives in a text message is not a timeline anyone is held to.

How to protect the bathroom renovation timeline

Protecting the timeline is a sequencing discipline, and it rests on running the invisible timeline at the same time as the visible one rather than one after the other.

1. Confirm the notification position before setting any date. Establish whether the work is a like-for-like swap or a material alteration needing a Commencement Notice, because the 14-to-28-day window sits in front of the start date.
2. Lock the full specification before ordering anything. The suite, tile, screen, and vanity are one order sheet, and a specification that is ninety percent locked produces a delivery schedule that is zero percent reliable.
3. Order the long-lead items the day the design is locked. Stocked sanitaryware arrives in days, but special-order pieces arrive in weeks — weeks that run for free while quotes are compared, or at full cost after strip-out.
4. Book every trade before the first one starts. A bathroom sequenced trade-by-trade rather than pre-booked end-to-end loses days at every handover, and the registered trades are the hardest to re-book at short notice.
5. Treat the tanking cure and the screen fabrication as planned stages, not delays. The membrane cures before tiling and the screen is fabricated after it, and a homeowner who plans both gaps runs a calm project where an unprepared one sees a stalled site.

None of these five steps shortens the build itself. They remove the dead time between the two timelines — the days a bathroom loses not because a trade worked slowly, but because the invisible timeline was started too late to finish alongside the visible one.

Running both timelines from one plan is what The 12-Phase System — Property Blueprint Co.'s framework for taking a homeowner from first quote conversation to practical completion — is built to do. The Bathroom Renovation Blueprint carries the bathroom-specific version: the notification check, the ordering schedule, the trade sequence, and the tanking hold point, in the order a prepared homeowner runs them.

If the cost baseline is the right first step, use the free Renovation Cost Calculator — a trade-by-trade estimate for the specific bathroom, in under 5 minutes, before any trade has quoted.

Frequently asked questions

How long does a bathroom renovation take in Ireland?

The on-site build for a full bathroom renovation with no layout change typically runs three to six weeks from strip-out to snag list, while a like-for-like supply-and-fit swap by a specialist crew can compress to one to two weeks. A moved layout or a wet-room conversion runs past six weeks. Those figures cover only the build — the specification, ordering, and approvals timeline runs before and alongside it.

What are the two timelines in a bathroom renovation?

The build timeline covers the weeks trades spend on site — strip-out, first fix, tanking, tiling, second fix, glazing, and snag list. The procurement and approvals timeline covers any Commencement Notice, the specification of every fixture and tile, supplier lead times, and trade booking. Homeowners plan around the build timeline and are routinely surprised by the other one, because it produces no visible progress to track.

Do I need planning permission for a bathroom renovation in Ireland?

No — an internal bathroom renovation is exempted development provided the use of the house and its external appearance are unchanged. The filing that can apply is the Commencement Notice: where the work is a material alteration to the structure, such as moving the soil pipe or altering drainage, the notice must be lodged with Building Control between 14 and 28 days before work begins, while a like-for-like fixture swap is generally exempt.

How long do bathroom fittings and tiles take to arrive in Ireland?

Stocked suites, sanitaryware, and standard tiles are typically delivered within three to five working days by Irish suppliers. Special-order and made-to-order items — non-stock tile ranges, specific vanity units, made-to-measure shower screens — carry lead times quoted in weeks that move with supplier availability, and a made-to-measure screen is measured only after tiling is finished, adding a further one to two weeks of fabrication.

When is the tanking done and why does it control the schedule?

The tanking — the waterproofing membrane — is applied after the linings and substrate are complete and before any tiling begins, and it is left to cure before tiles go over it. It controls the schedule because it cannot be undone: once tiles are down, the membrane can never be inspected again, so the build cannot be compressed by overlapping the trades on either side of it.

Why do bathroom renovations take longer than the quoted build time?

Because the quoted build time describes only the on-site weeks, not the specification, ordering, notification, and booking timeline that has to run first or alongside them. A homeowner who waits until the design is finalised to order sanitaryware, lodge a Commencement Notice, or book the registered trades has added the entire procurement timeline onto the front of the build — a three-month project where a five-week one was quoted.