Waterproofing Repairs & Maintenance

Waterproofing Repairs & Maintenance

Gunac, Access | Partners in Property's waterproofing specialists, supports commercial property owners, body corporates and industrial portfolios across Auckland, Waikato and Bay of Plenty. Our repair and maintenance work covers water ingress investigation, membrane repairs and protective coatings.

Whether you are investigating a leak or planning ongoing maintenance, start with the condition of the existing system. An assessment helps define the repair scope and the appropriate next steps.

External Coating & Protective Systems

Specialised coating applications to protect:

• Concrete substrates
• Metal roofing and flashings
• Wallboard cladding systems
• Timber structures
• Roof and deck areas

Water Ingress Investigation & Remediation

We identify the root cause of leaks - not just the symptoms. Our structured assessment process provides long-term, technically sound repair strategies.

Membrane Repairs

• Liquid membrane reinstatement
• Sheet membrane patch repairs
• Seam and joint remediation
• Penetration detailing upgrades

Planned Maintenance Programmes

We develop maintenance plans and detailed proposals aligned to your building's lifecycle requirements. Scheduled inspections and condition reporting help prevent unexpected failures and protect manufacturer warranties.

End-to-End Project Control

Gunac manages all aspects of waterproofing repair works - from quotation through to delivery. Where required, we coordinate with a trusted network of associated trades including licensed builders, plumbers, plasterers, electricians, and metal fabricators.

What to Include in a Waterproofing Repair Enquiry

Help us understand the property and the problem by including:

• The site address and building type
• Where water is appearing and when you first noticed it
• Whether the issue occurs after rain or is present at other times
• The existing membrane or coating system and any previous repairs, if known
• Access restrictions, occupied areas and your preferred timing

You can enquire even if the cause or existing membrane system is unknown. Request a waterproofing repair assessment using the form below.

Related Waterproofing Services

For a wider project, view our commercial waterproofing services, sheet membrane systems and liquid membrane systems.