Waterproofing From the Ground Up
At Canseal, we recognise that water infiltration isn’t a minor issue — it’s a growing challenge across Christchurch and the South Island. Homes, commercial buildings, and older structures are increasingly vulnerable to leaks, damp-related damage, and structural decay. Using our civil waterproofing expertise, we’re committed to tackling that problem head-on.
Our Story
Founded by Matheus Fraga, a civil waterproofing and restoration specialist who arrived in New Zealand shortly before the Christchurch earthquake, Canseal has since worked extensively across Canterbury and the South Island.
From crack injection and structural remediation to full-scale sealing systems, our team has helped restore buildings, protect surfaces, and renew trust in properties previously at risk.
What We Stand For
“We don’t just fix issues — we build lasting protection for your property, from the driveway, through the basement, all the way to the roof.”
Civil-grade methods. Transparent advice. Results you can rely on.
Our Values
- Integrity & Trust: We promise what we deliver, and deliver what we promise. No shortcuts.
- Quality Without Compromise: Every project — big or small — receives the same high standard of workmanship.
- Local Commitment: We’re rooted in Christchurch. We understand the climate, terrain, and construction challenges of this region.
- Sustainability & Care: Our solutions extend building life and reduce waste, protecting both property and environment.
- Client Focus: Clear communication, reliable service, and 100% satisfaction — your protection is our priority.
Capabilities
- Basement & negative-side waterproofing
- Roof restoration, membranes & warm roofs
- Crack injection (epoxy/PU) & concrete repairs
- Sealant work & façade detailing
- Driveway & concrete sealing, epoxy flooring
Where We Work
Christchurch, Selwyn, Waimakariri, Hurunui, Timaru, Ashburton, Banks Peninsula and the wider Canterbury region.
We can coordinate after-hours and staged works to align with other trades and tight programmes.
Talk to a Waterproofing Specialist
Need help with leaks, damp, or long-term protection? Let’s assess your property and recommend the right system.
Prefer email? info@cansealnz.co.nz