Why Bathroom Renovation Costs Vary in Ireland
Why bathroom renovation costs vary in Ireland (2026), including specification differences, labour scope, VAT treatment and structural cost drivers.
Typical quote variation: 10%–40%
Why Quotes Differ So Much
Bathroom renovation quotes in Ireland commonly vary by 10%–40%, even when contractors appear to be pricing the same room.
The difference usually comes from specification level, fixture allowances, waterproofing scope, plumbing assumptions, labour structure, VAT inclusion and risk pricing.
Headline price alone rarely shows whether two quotations include the same work.
The more complex the bathroom, the wider the normal variation between quotes tends to become.
Specification Is the Biggest Variable
Fixture choice can create a €10,000+ difference before labour or structural work changes at all.
A budget fixture package in the source example totals €1,650, compared with €5,300 mid-range and €13,500 premium.
This is why allowances must be compared line by line rather than by headline quotation alone.
Tiling & Plumbing Assumptions
Tiling Scope
One quote may assume half-height wall tiling while another includes full-height tiling throughout.
18m² half-height: €1,980
35m² full-height: €3,850
That is a €1,870 difference before changing the tile specification.
Plumbing Assumptions
A quote may assume the existing layout is retained, while another allows for toilet or drainage relocation.
Layout retained: €2,000
Toilet relocation: €4,500
Drainage alterations: €7,000+
These scope differences can cause quotations to diverge sharply.
Specification, Waterproofing & Quote Comparison
Fixture Specification Example
| Item | Budget Allowance | Mid-Range | Premium |
|---|---|---|---|
| Toilet | €300 | €1,200 | €2,500 |
| Vanity | €700 | €1,500 | €4,000 |
| Shower system | €250 | €800 | €2,500 |
| Bath | €400 | €1,800 | €4,500 |
| Fixture Total | €1,650 | €5,300 | €13,500 |
Waterproofing Scope Example
| Waterproofing Scope | Cost |
|---|---|
| Shower-only | €1,200 |
| Full wet-zone | €2,000 |
| Full-room | €3,500 |
Quote Structure Example
| Item | Contractor A | Contractor B |
|---|---|---|
| Fixtures | Included | Excluded |
| Tiling supply | Included | Excluded |
| Waste removal | Included | Excluded |
| VAT | Included | Excluded |
| Headline Price | €18,000 | €14,500 |
A lower headline figure does not necessarily mean a lower final cost if major allowances or scope items are excluded.
Labour Models & Risk Pricing
Contractors may price using fixed-price contracts, day rates, subcontracted trades or an in-house team.
Even with identical scope, labour structure and risk pricing can create a €2,000–€5,000 difference.
Experience, programme certainty and project complexity all influence the allowance.
Worked Quote Comparison & Typical Variation
Example Scenario Comparison
| Quote A | Quote B | |
|---|---|---|
| Construction | €14,000 | €12,000 |
| VAT | Included | Excluded |
| Fixtures | Mid-range | €2,000 allowance |
| Waterproofing | Full waterproofing | Shower-only tanking |
| Layout | Retained | Relocation excluded |
After aligning the scope, the original page notes that Quote B may exceed €17,000. The cheaper headline figure is therefore potentially misleading.
Typical Variation by Project Type
| Project Type | Normal Variation |
|---|---|
| Basic ensuite | 10–20% |
| Mid-range bathroom | 15–25% |
| Wet room | 20–40% |
Higher complexity generally means a wider quotation range.
VAT Treatment
One quote may include VAT while another may show a pre-VAT figure.
On the source page example, 13.5% on €15,000 is €2,025.
Always confirm VAT treatment and whether the total shown is VAT-inclusive.
Hidden Conditions & Access
Uneven floors, rotten timber, poor ventilation, inadequate drainage fall and electrical-board capacity can all create unexpected costs.
Upper-floor and restricted-access bathrooms typically cost 10%–20% more.
Regional Variation
Dublin and commuter-belt pricing, labour demand and contractor availability can affect local costs.
Regional variation is typically around 5%–15%.
Specification remains the dominant cost factor.
Summary
Bathroom renovation quotes commonly vary by 10%–40%.
The main reasons are specification, tiling scope, plumbing assumptions, waterproofing, labour structure, VAT treatment and hidden conditions.
Compare the detailed scope and allowances rather than relying on the headline price.
Other resources:
Small Bathroom vs Ensuite Install
Bathroom Tiling Costs per Square Meter
Fixtures & Sanitary Ware Price Ranges