Waikato Builders
Bathroom Renovations in Hamilton
NZCB-certified bathroom renovations across Hamilton and the wider Waikato.

Bathroom Renovations in Hamilton
Hamilton's housing covers the full range — 1920s and '30s villas and bungalows in the older suburbs, right through to the fast-growing new subdivisions in Rototuna, Flagstaff and Peacocke. As a family-run, NZCB-certified builder working across the heart of the Waikato, RB Thomas specialises in watertight, well-built bathrooms — from a single ensuite to a full main-bathroom rebuild. Whatever the condition of your Hamiltonhome or project, you get the same promise we’ve built our name on — projects on spec, on time, on budget.
What bathroom renovations looks like in Hamilton
Bathrooms are the most technical room in the house: get the waterproofing, falls and ventilation wrong and you're looking at rot down the track. For Hamilton bathroom renovations we do it properly — correct substrate, certified waterproofing, tanking, quality tiling, and the plumbing and electrical signed off by licensed trades. Whether it's a compact ensuite or a luxury main bathroom with a freestanding bath and walk-in shower, we manage the full job and leave you with a space that's built to last.
See more about our bathroom renovations service, or browse what we offer across Hamilton and the wider Waikato.
Wondering about price? See our guide to bathroom renovation costs.
Why Hamilton chooses RB Thomas
- New Zealand Certified Builders (NZCB) — qualified, accountable, local
- Every residential job can be backed by the Halo 10-Year Residential Guarantee
- We know Hamilton, Hamilton City Council and the local trades and merchants
- Straight-up advice and quotes we stand by — on spec, on time, on budget
They said it, not us
“I have had the privilege of using Jake as a builder and project manager on numerous occasions. I can honestly say you will never find a more honest and genuine man. His workmanship is second to none and he communicates through every step of the build/renovation and makes sure you understand the process. I couldn't recommend him highly enough.”