When it comes to tile installation, what lies beneath is just as important as what meets the eye. From cracked grout lines to lifting tiles and water-damaged substrates, the consequences of poor workmanship in tiling are not just cosmetic — they can be financially devastating. In New Zealand, the rising number of tile failures has exposed a critical issue: many installations lack proper oversight, compliance, and qualified craftsmanship.
That’s where Specialised Tile Solutions Consultants (STSC) comes in. Founded to address the growing need for professional evaluation of failed or failing tile installations, STSC operates independently to provide unbiased assessments, technical reports, and expert mediation between tilers, builders, and consumers. Supported by the industry credibility of the Tile Association of New Zealand (TANZ), STSC’s work is helping to set new standards for tile quality and compliance across the country.
But what can homeowners, builders, and project managers do to avoid tile failures in the first place?
The answer is simple: hire a certified TANZ member tiler.
The True Cost of Poor Tiling Workmanship
Tile failures often stem from issues hidden beneath the surface. Whether it’s an improperly prepared substrate, incompatible products, incorrect adhesives, poorly detailed membrane, or inadequate waterproofing, these technical oversights can lead to serious damage. In our investigations, we frequently encounter problems such as:
- Water ingress from failed membranes
- Cracked or hollow tiles due to movement
- Mould and dampness from poor ventilation or drainage
- Lifting or tenting tiles due to thermal expansion
- Grout cracking from excessive substrate deflection
Fixing these problems is not only disruptive but costly. Insurance claims may be denied if the installation doesn’t meet the New Zealand Building Code (NZBC), BRANZ, or product manufacturer standards. That’s why it’s crucial to get it right the first time by hiring a qualified, insured, and vetted professional.
Why TANZ Membership Matters
TANZ is New Zealand’s only recognised national industry body for tiling. Its members are held to strict codes of practice, regularly trained, and are approved waterproofing applicators. When you hire a TANZ member, you’re getting more than a tiler — you’re hiring a professional committed to excellence, industry standards, and ongoing education.
Benefits of hiring a certified TANZ member tiler:
- Verified training and qualifications
- Access to industry-approved technical resources
- Commitment to TANZ Best Practice Guide (formerly known as BRANZ Good Tiling Practice)
- Ongoing support through TANZ and STSC
- Trade insurance coverage recommendation for peace of mind
The STSC Process: How We Investigate Tiling Failures
If a tile installation fails, STSC conducts a thorough investigation covering every element of the system:
- Substrate Analysis – Ensuring structural soundness and compliance
- Moisture Testing – Identifying hidden dampness and potential rot
- Product Compatibility Checks – Reviewing adhesives, membranes, and underlays
- Installation Methodology – Verifying compliance with technical data sheets and standards
- Photographic and Written Documentation – Unbiased, report-ready evidence
We also provide independent PS4 certifications, expert witness support, and documentation to aid dispute resolution and compliance.
Our reports are trusted by councils, insurers, project managers, and legal entities across New Zealand.
Protecting Yourself with Trades Insurance
One of the most overlooked elements in tile contracting is insurance. If your tiler isn’t covered by professional liability or public liability insurance, you could be left footing the bill if something goes wrong.
That’s why TANZ requires its members to carry appropriate trades insurance. In partnership with Builtin Insurance, TANZ helps tilers get the right cover and helps clients feel secure in their hiring decisions.
Don’t take the risk – always hire a certified tiler who is both qualified and insured.
A Word to Builders and Architects
Builders and specifiers often face the pressure of keeping to budget and timelines, but cutting corners on tiling can have long-term consequences. As consultants, STSC has worked with many builders post-project who wish they had involved qualified tilers earlier.
Whether you need pre-installation specification reviews, site inspections, or installation oversight, we offer:
- Independent technical reviews
- Professional Reports
- Oversight Documentation
- Remedial inspection and compliance analysis
These services aren’t just for problem-solving – they help prevent problems in the first place.
Think Before You Tile: 5 Steps to Protect Your Investment
- Hire a TANZ Member Tiler – Check the TANZ directory to find certified professionals.
- Ask About Insurance – Ensure your contractor has public liability and professional indemnity insurance.
- Get Everything in Writing – From quotes to technical data sheets.
- Understand the System – Know the components being used in your tiling project.
- Call STSC if You Need Help – Whether for inspection or oversight, we’re here to assist.
FAQ: Tile Installation & Investigations in NZ
Q1: What does STSC do exactly?
STSC offers independent inspections and documentation for tile projects, especially when issues like leaks, lifting tiles, or system failures occur. We provide third-party reports based on NZBC, BRANZ, and CGA standards.
Q2: What is the difference between STSC and TANZ?
TANZ is the industry body for tilers, offering certification, education, and support. STSC is a consulting arm offering investigative services. They are independent but complementary.
Q3: Can homeowners contact STSC directly?
Yes. STSC works with homeowners, builders, tilers, and architects. Anyone facing tile problems or seeking assurance on quality can reach out.
Q4: How do I verify that a tiler is a TANZ member?
Visit the TANZ website and use the member directory or contact TANZ directly for verification.
Q5: What if I already have tile issues?
Contact STSC. We’ll assess the situation and provide a professional report with recommendations.
Conclusion
Tile failures are more than just unsightly — they’re a symptom of systemic issues in preparation, installation, or oversight. Whether you’re building a home, renovating a bathroom, or managing a commercial tiling project, don’t take shortcuts. Hire qualified, insured professionals who adhere to New Zealand’s highest standards.
Protect your investment. Choose a TANZ-certified tiler, and if in doubt, consult with Specialised Tile Solutions Consultants (STSC) for peace of mind that your tiling system is built to last.
