A bathroom renovation is one of the most popular home improvements in Wellington. Here's what it costs in 2026 and what to expect from the process.
Wellington Bathroom Renovation Costs 2026
| Bathroom type | Wellington typical cost (complete) |
|---|---|
| Budget refresh (existing layout, cosmetic) | $5,000–$9,000 |
| Budget renovation (new suite, same layout) | $8,000–$18,000 |
| Mid-range renovation (re-layout, quality fittings) | $18,000–$40,000 |
| Premium renovation (full custom, top fittings) | $40,000–$100,000+ |
What's Included at Each Level
| Cost component | Budget | Mid-range | Premium |
|---|---|---|---|
| Toilet | Entry-level | Mid-range | Wall-hung/designer |
| Vanity | Flat-pack | Semi-custom | Custom cabinetry |
| Basin | Standard | Semi-inset | Vessel/designer |
| Shower | Budget screen | Frameless glass | Frameless + niche |
| Bath | Acrylic freestanding | Standard | Premium freestanding |
| Tapware | Budget | Mid-range | Designer |
| Tiles | Budget tiles | 300×600 format | Large format/natural stone |
| Heated towel rail | Basic | Standard | Designer |
All prices GST inclusive. Comparable to auckland.
Wellington Bathroom Renovation Market
Wellington's character villas often have original small bathrooms that are first on the renovation list. Space is at a premium in many Wellington homes, making smart layout design crucial.
Tradespeople You'll Need
A bathroom renovation involves multiple trades:
- Builder: Project management, demolition, waterproofing, framing changes, and coordination
- Plumber: Toilet, basin, shower/bath connections, relocation if layout changes
- Electrician: Heated towel rail, ventilation fan, lighting, shaver socket
- Tiler: Floor and wall tiles — the biggest visual impact
- Plasterer: Making good walls and ceiling after demolition
A good builder or bathroom company coordinates all trades. Self-managing trades saves the margin (typically 15–25%) but requires significantly more time.
Waterproofing — The Most Important Step
NZ Building Code requires waterproofing in wet areas. This is non-negotiable:
- All shower areas must be fully waterproofed to the correct height (minimum 1,800mm for showers)
- Floor-to-wall junctions are the most common failure point
- Must use a consented waterproofing system with a compliance certificate
- Your builder must be Licensed Building Practitioner (LBP) for restricted work
Warning: Non-compliant waterproofing means invisible rot behind tiles — often not discovered until major damage occurs. Never skip or cheap out on waterproofing.
Do I Need Building Consent?
Usually no for a like-for-like renovation in the same location. Yes if you are: - Moving plumbing to a new location (structural/drainage work) - Removing walls or changing the room's footprint - Adding a new bathroom where one didn't exist
Your builder will advise — most standard bathroom renovations don't require consent.
Find Wellington bathroom renovators: Bathroom Renovators Wellington | Post a Job Free
Frequently Asked Questions
How much does a bathroom renovation cost in Wellington? Budget (new suite, same layout): $8,000–$18,000. Mid-range (re-layout, quality fittings): $18,000–$40,000. Premium: $40,000–$100,000+.
How long does a bathroom renovation take in Wellington? Typical mid-range bathroom: 2–4 weeks. Complex renovations with layout changes: 4–8 weeks.
What is the most important part of a bathroom renovation? Waterproofing. Everything else is cosmetic — bad waterproofing causes structural rot that can cost far more to fix than the original renovation.
Can I use my bathroom during renovation? No — you'll need to plan for no bathroom access for the duration. Most homeowners use another bathroom or stay elsewhere for major renovations.
Related: Bathroom Renovation Cost NZ | Kitchen Renovation Wellington | Tiler Wellington