Wet room installation costs in Ireland (2026), including tanking systems, drainage formation, tiling, labour breakdown and full project cost scenarios.
1. Overview
Wet rooms are fully waterproofed bathroom spaces where the shower area is level with the floor and no raised shower tray is used.
Unlike standard bathrooms, wet rooms require:
- Full tanking system
- Floor gradient formation
- Linear or central drain installation
- Higher waterproofing standards
- Greater installation precision
In Ireland (2026), wet room installation typically costs:
€10,000 – €25,000+
Costs depend heavily on:
- Whether it is retrofit or new build
- Floor structure (concrete vs timber)
- Drainage relocation
- Tile specification
- Waterproofing system used
2. Why Wet Rooms Cost More Than Standard Bathrooms
Wet rooms involve additional technical scope:
- Entire floor must be waterproofed
- Falls must be created in subfloor
- Drainage must accommodate level access
- Tiling is usually full-height
- More labour-intensive detailing
This makes them structurally more complex than tray-based showers.
3. Typical Wet Room Cost Breakdown
| Component | Typical 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 (if used) | €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.
4. Floor Structure Impact on Cost
Concrete Subfloor
- Easier to form falls
- Drain relocation often simpler
- Lower structural reinforcement requirements
Typical additional structural cost: €1,000 – €3,000
Timber Upper Floor
- Joist modification often required
- Additional strengthening may be necessary
- Waterproof membrane detailing more critical
Typical additional structural cost: €3,000 – €8,000+
Upper floor wet rooms frequently cost 20–40% more than ground floor installations.
5. Tanking and Waterproofing Systems
Wet rooms require certified waterproofing systems.
Common methods include:
- Liquid-applied membranes
- Sheet membrane systems
- Pre-formed wet room trays integrated into floor
Typical Waterproofing Costs
| Scope | Typical Cost |
|---|---|
| Shower zone only | €1,200 – €2,000 |
| Full wet room tanking | €1,500 – €4,000 |
Full-room tanking is recommended for long-term performance.
6. Tiling Costs in Wet Rooms
Wet rooms usually require:
- Full-height wall tiling
- Slip-resistant floor tiles
- Complex cuts around drains
Typical Installed Tiling Rates
€70 – €180 per m²
Example (30m² total tiled area):
- Low range: €2,100
- High range: €5,400
Premium stone increases cost significantly.
7. Drainage System Costs
Linear drains and concealed systems increase cost.
| Drain Type | Typical Cost |
|---|---|
| Standard central drain | €150 – €400 |
| Linear drain system | €400 – €1,500 |
| Premium concealed drain | €1,000 – €3,000 |
Drain relocation significantly impacts final cost.
8. Specification Tiers
Budget Wet Room
€10,000 – €14,000
Includes:
- Standard tiles
- Basic sanitaryware
- Central drain
- Partial glass panel
Mid-Range Wet Room
€14,000 – €20,000
Includes:
- Large-format tiles
- Frameless glass
- Linear drain
- Concealed shower valve
High-End Wet Room
€20,000 – €35,000+
Includes:
- Premium stone or porcelain
- Designer fittings
- Bespoke joinery
- Integrated lighting features
- Advanced drainage systems
9. Example Full Project Scenarios
Example A – Mid-Range Ground Floor Wet Room (€15,000 construction)
- Construction cost: €15,000
- VAT @13.5%: €2,025
- Contingency (7%): €1,050
- Estimated Total: €18,075
Example B – Upper Floor Wet Room (€22,000 construction)
- Construction cost: €22,000
- VAT @13.5%: €2,970
- Contingency (7%): €1,540
- Estimated Total: €26,510
10. Timeline
| Phase | Duration |
|---|---|
| Demolition | 2–4 days |
| Floor formation | 2–5 days |
| Waterproofing | 2–3 days (incl. curing) |
| Tiling | 4–8 days |
| Fit-out | 2–4 days |
| Total Duration | 3–6+ weeks |
Drying times extend overall timeline.
11. Key Cost Drivers
- Floor structure type
- Drain relocation
- Tiling specification
- Waterproofing system
- Concealed fixtures
- Access constraints
- Ventilation upgrades
Wet rooms are less forgiving of installation errors, increasing labour precision requirements.
12. Summary
Typical wet room installation costs in Ireland (2026):
€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.
13. Other Resources
Small Bathroom vs Ensuite Install
Bathroom Tiling Costs per Square Meter
Fixtures & Sanitary Ware Price Ranges