Joint Sealing Services
Joints in concrete, metal, or masonry surfaces are natural weak points where water can penetrate. Our joint sealing services ensure these areas are fully protected, preventing leaks, structural damage, and long-term maintenance issues.
Using high-quality sealants and proven techniques, we provide durable solutions for commercial and industrial properties.
This system is ideal for areas where traditional sheet membranes may be difficult to install.
Why Joint Sealing Is Important
Unsealed or poorly sealed joints can lead to:
- Water infiltration and leaks
- Corrosion of embedded steel
- Foundation or structural damage
- Increased maintenance costs
Properly sealed joints create a continuous barrier, protecting your building’s envelope and extending the lifespan of your structure.
We utilise high-performance flexible sealants, including:
- Polyurethane Sealants: Known for their excellent flexibility and durability.
- Silicone Sealants: Providing superior weather resistance.
- Polysulphide Sealants: Offering robust protection for demanding applications.
Our Joint Sealing Services
- Expansion and contraction joints
- Control joints in concrete floors and slabs
- Curtain wall and facade joints
- Roof and deck joint sealing
- Window and door frame sealing
Why Choose DNA Waterproofing?
Experienced Team
Over a decade of combined hands-on experience
Local Knowledge
We understand the unique waterproofing challenges in the Lower North Island.
Reliable Service
Prompt, professional, and trustworthy.
Comprehensive Solutions
A full range of waterproofing and roofing services.
Personalized Approach
We work closely with each client to understand their specific needs.