Wet room renovation planning

Wet room installation costs in Ireland (2026), including tanking systems, drainage formation, tiling, labour breakdown and full project cost scenarios.

Typical cost: €10,000–€25,000+

Wet Room Costs in Ireland

Wet rooms are fully waterproofed bathroom spaces where the shower area is level with the floor and no raised shower tray is used.

Compared with a conventional bathroom, they require a full tanking system, floor-gradient formation, specialist drainage and more precise installation.

In Ireland (2026), a complete wet room installation typically costs €10,000–€25,000+.

The final price depends heavily on whether the project is a retrofit or new build, the floor structure, drainage relocation, tile specification and waterproofing system.

Why Wet Rooms Cost More

The entire floor must be waterproofed and correctly graded so water drains without a raised tray.

Drainage, full-height tiling and membrane detailing also require more labour and installation precision.

This makes wet rooms technically more complex than tray-based showers.

Modern wet room installation

Floor Structure & Waterproofing

Concrete Subfloor

Concrete floors are generally easier to modify because falls can be formed more directly and drain relocation is often simpler.

Typical additional structural cost: €1,000–€3,000

Structural reinforcement requirements are also usually lower than with timber upper floors.

Timber Upper Floor

Timber floors may require joist modification, additional strengthening and more careful waterproof membrane detailing.

Typical additional structural cost: €3,000–€8,000+

Upper-floor wet rooms frequently cost 20%–40% more than ground-floor installations.

Typical Wet Room Cost Breakdown

ComponentTypical Cost Range
Strip-out & demolition€500–€1,500
Floor formation & falls€1,500–€4,000
Drainage system & linear drain€800–€3,000
Waterproofing – full room tanking€1,500–€4,000
Plumbing works€1,500–€4,000
Electrical & ventilation€800–€2,000
Tiling – walls + floor€3,000–€8,000
Fixtures & fittings€2,000–€7,000
Glass screens€600–€2,500
Labour & coordination€2,000–€6,000
Typical Total€10,000–€25,000+

Concrete floor structures are generally simpler to modify than timber upper floors, while drainage relocation and premium finishes can push a project well beyond the typical range.

Wet room tiling and drainage detail

Tiling & Drainage

Wet rooms usually need full-height wall tiling, slip-resistant floor tiles and more complex cuts around drains.

Installed tiling typically costs €70–€180 per m².

Drain choice ranges from a standard central drain to premium concealed systems costing up to €3,000.

Specification Tiers & Example Projects

SpecificationTypical CostTypical Features
Budget Wet Room€10,000–€14,000Standard tiles, basic sanitaryware, central drain, partial glass panel
Mid-Range Wet Room€14,000–€20,000Large-format tiles, frameless glass, linear drain, concealed shower valve
High-End Wet Room€20,000–€35,000+Premium stone or porcelain, designer fittings, bespoke joinery, advanced drainage
Example Full Project Scenarios
ExampleConstruction CostVAT FigureContingencyEstimated Total
Mid-range ground-floor wet room€15,000€2,025€1,050€18,075
Upper-floor wet room€22,000€2,970€1,540€26,510

These examples retain the VAT and contingency figures shown on the original page. Confirm the VAT treatment and inclusions used in any contractor quotation before comparing totals.

Waterproofing

Wet rooms require certified waterproofing systems such as liquid-applied membranes, sheet membranes or pre-formed wet-room trays integrated into the floor.

Full-room tanking: €1,500–€4,000

Timeline

Demolition: 2–4 days
Floor formation: 2–5 days
Waterproofing: 2–3 days
Tiling: 4–8 days
Fit-out: 2–4 days

Total duration: 3–6+ weeks

Key Cost Drivers

Floor structure, drainage relocation, tiling specification, waterproofing system, concealed fixtures, access constraints and ventilation upgrades all affect the final cost.

Wet rooms are less forgiving of installation errors, increasing labour precision requirements.

Finished modern wet room

Summary

Typical wet room installation costs in Ireland (2026) are €10,000–€25,000+

Ground-floor installations are generally less expensive than upper-floor conversions.

Waterproofing, floor formation and tiling are the primary cost drivers.

Wet rooms carry higher technical requirements than tray-based showers.


Other resources:

Small Bathroom vs Ensuite Install

Bathroom Tiling Costs per Square Meter

Plumbing Relocation Costs

Fixtures & Sanitary Ware Price Ranges

Waterproofing & Compliance Requirements

Labour Breakdown Costs

Why Costs Vary for Renovations