Flood Recovery & Future Mitigation · New Zealand

Flood Mitigation After a Property Claim: Practical Next Steps

After a property has flooded, the immediate focus is usually safety, damage, drying, repairs and the insurance process. Once those urgent matters are being dealt with, another question often follows: what could reduce the property’s vulnerability if flooding happens again?

Flood mitigation is separate from repairing existing damage. It may involve understanding how water reached the property, identifying vulnerable openings or routes, and considering whether a reusable flood-protection system could form part of a future plan.

Special Solutions Flood Protection does not determine insurance coverage, claim acceptance or what an insurer will fund. This guide is intended to help property owners collect useful information and understand practical next steps when flood protection is being considered.

1. Deal with safety and the current flood event first

Do not put yourself at risk to install, inspect or recover flood-protection equipment during dangerous conditions. Follow official emergency advice and the instructions of your insurer, loss adjuster or other professionals involved with the property. Floodwater may be contaminated and can conceal hazards.

2. Record how water affected the property

Information from an actual flood can be valuable when considering future mitigation. Where it is safe and practical, retain photographs, measurements and notes showing where water approached from, which openings were affected, approximate water levels, whether water travelled around the building, and whether drains, vents, walls or other routes were involved.

A flood barrier across a doorway or garage may only address one part of the problem. Water may be able to bypass a barrier, enter through another opening or approach from a different direction.

3. Separate repair from future mitigation

Repair work restores or replaces what has been damaged. Flood mitigation is about considering what may reduce future exposure or make a property easier to protect and prepare. Depending on the site, this could involve drainage, building work, raising or relocating vulnerable items, operational planning, or temporary or removable flood barriers.

A flood barrier should not automatically be treated as the complete solution. Some properties require advice from appropriately qualified engineers, hydrologists, drainage specialists, builders or other professionals.

4. Collect the information needed to discuss a barrier

• Property location.
• Photographs of the affected opening and the wider surroundings.
• Approximate opening or proposed protection-line measurements.
• Known flood depth, direction and entry points where available.
• Ground surface and changes in level.
• Possible routes around the ends of a proposed barrier.
• How quickly the barrier may need to be deployed.
• Who would deploy it and where it could be stored.

Our flood-barrier measurement guide explains the basic measurements and photographs that are useful when starting an enquiry.

5. Compare the type of flood protection with the site

Different flood-protection systems suit different applications. Removable aluminium barriers may suit prepared openings. Modular ABS barriers can provide portable temporary protection at suitable sites. Water-filled systems can be useful where a longer temporary barrier line and sufficient deployment space are available.

See our guide to choosing a flood barrier for a practical comparison of the main approaches.

6. Think about deployment before the next warning

A reusable flood barrier is most useful when the people responsible for it know where it is stored, how it is installed or deployed, what equipment is needed and when deployment should begin. Practice and preparation matter. Do not wait until dangerous floodwater has already arrived to learn how the system works.

If you have been referred for flood protection

You do not need to know which product you require before contacting Special Solutions Flood Protection. Send whatever information you already have and we can help compare potentially suitable flood-barrier options and provide product or quotation information where appropriate.

For insurers, loss adjusters and property organisations

If you are referring a customer or considering flood mitigation across multiple properties, visit our For Organisations page. Special Solutions Flood Protection can provide quotations, product information and available technical documentation for individual properties or broader requirements, without making decisions about insurance coverage or claim acceptance.

Important limitations

Barrier height or product size alone does not establish a safe flood depth, current resistance or site-specific performance. Ground conditions, water direction, bypass routes, installation and correct deployment all matter. No flood-protection system can guarantee that a property will remain completely dry in every flood event. Specialist advice may be required for some sites.