About Quality Seal Australia
At Quality Seal Australia, joint sealing is more than a trade — it’s a craft built on pride, precision and care.
Quality Seal Australia was created to bring a higher standard of finish, professionalism and integrity to the joint sealing industry. With a background in specialised decorative painting, Chantelle saw an opportunity to combine creative fine-art skills with technical expertise to deliver silicone finishes that truly enhance a space, rather than simply complete a task.
“To me, a neat bead of silicone is like a beautiful piece of art with the perfect functional frame. It doesn’t just enhance the finish — it completes it.” – Chantelle Geldenhuys, Co-Founder
This philosophy remains at the heart of everything we do today.












Our Story
With over 13 years’ experience in the trade industry, Chantelle has seen first-hand both the best and worst of how trades are treated, how quality is delivered, and how clients are served. After years of working within systems that prioritised speed over pride, Quantity over quality, and output over people, she made the decision to create something different.
Quality Seal Australia was founded to fill a gap in the market — a gap for sealing work that is done with care, consistency and genuine pride. What began with residential and commercial joint sealing has since expanded to include marine and boat caulking services, allowing us to bring the same attention to detail and craftsmanship to yacht and marine environments.
From day one, the goal has been clear: deliver silicone finishes that builders, clients and trades can be proud of.
Our Mission, Vision & Culture
Our Mission
Our mission at Quality Seal Australia is to build long-term, trusted relationships with clients who value the highest quality workmanship. We do this by delivering joint sealing services that are consistently executed, detail-focused and something we are genuinely proud to put our name to.
Our Vision
Our vision is to be the change the joint sealing industry needs. We aim to raise expectations, improve standards and redefine what professional sealing work looks like — for both clients and tradespeople alike.
Culture
Our team is built on mutual respect, open communication and a shared sense of pride. We don’t see ourselves as just tradespeople moving from job to job — we are specialists who understand the impact our work has on the final result. That fine, often unnoticed bead of silicone can make or break the hard work of every other trade involved.
Every member of our team is personally trained and guided by Chantelle, ensuring not only technical excellence, but alignment with our values, standards and expectations. We work as a team, support one another and take pride in doing things properly — every time.
What sets us apart
There are many joint sealing companies out there, but what truly sets Quality Seal Australia apart is our unwavering commitment to our values. These values guide every decision we make, from how we work on site to how we treat our clients and each other.
Quality
Trust
Reliability
We show up — for our clients, for our team and for every project. Reliability is non-negotiable and a key reason clients choose us again and again.
Relationships
We value the relationships we build with our clients and our colleagues. Strong relationships create better outcomes, smoother projects and more enjoyable work for everyone involved.
Pride
If you don’t feel proud wearing the QSA shirt, we’re probably not the right fit. We are proud of every lineal metre of silicone we apply, without exception. Proud of our team. Proud of our work. Proud to be part of positive change in an industry that’s ready for it.