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Homes and rentals

Flood barriers for Australian homes.

Water gets into a house through a handful of predictable openings — the garage, the doors, the side gate. Protect them in that order, because an open side gate undoes a protected front door.

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Use cases

Where water actually enters a house.

Flood barrier deployed across a double garage roller door in heavy rain

Garage roller doors

The base seal on a roller door is a dust seal, not a water seal. Treat the base of the door as an open gap the full width of the opening and size the barrier for the opening.

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Oxford flood barrier deployed across a residential front door

Front and side doors

A single Oxford barrier adjusts to a standard doorway, deploys tool-free in minutes, and stores flat behind the door it protects. A sandbag along the threshold seals the gap.

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Oxford flood barrier at an apartment entry

Apartments and townhouses

Ground-floor unit entries and internal garage doors. Portable barriers leave no fixings, so they suit lot entries where the building itself is common property.

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Water-activated sandbags stacked at a backyard gate

Backyard gates and side access

Water routes around a protected front door and takes the easiest path in. Sandbags conform to gate profiles and uneven paths that a rigid panel cannot seat against.

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Aluminium flood barrier across a Queensland home front gate

Driveways and front gates

A sloped driveway feeds everything downhill to the garage. Aluminium sets are made to measure for wide gate and driveway openings, and deploy in under ten minutes.

Aluminium flood barriers →
Water-activated sandbags protecting a rental property front door

Rental properties

Sandbags, Oxford barriers, and ABS panels leave no fixings, so a tenant can deploy them without landlord involvement. Anything drilled or fixed needs written consent first.

Renter's guide →

Sizing

Which barrier fits which opening.

  • Single roller door, around 2.4 mOne Oxford 2-pack spans the width, with a sandbag row along the base to seal against an uneven driveway.
  • Double roller door, 4.5–5 mTwo Oxford 2-packs linked end-to-end, or an ABS 8-panel pack where the surface is uneven or the door is used often.
  • Side-entry personnel door, 820–900 mmA single Oxford 2-pack adjusted to door width, paired with a sandbag along the threshold gap.
  • Sliding glass door or rear balcony accessOxford barriers on the upstream face. Commonly overlooked where the flood arrives as stormwater runoff rather than an overflowing waterway.
  • Textured or uneven driveway surfaceAdd a row of water-activated sandbags along the base to fill anywhere the barrier fabric does not seat flush.

One rule covers most mistakes: an Oxford 2-pack is two barriers, each adjusting to 1,300 mm, so a pack spans up to 2,600 mm — a single door, not a double. Sandbag height is counted in courses: one course stands 120 mm, two reach roughly 240 mm.

Detail

Guides for homeowners and renters.

Flood barriers for home garages

Roller door sizing, deployment sequence, storage and reuse, and the flood-watch action list.

How to flood proof a house

The full entry-point audit, interior preparation, and product selection by scenario.

Flood barriers for rental properties

Landlord and tenant responsibility, and what a tenant can deploy without consent.

Portable flood barriers for homes

Oxford barriers and ABS panels compared for typical residential and garage openings.

Flood barriers vs sandbags

How the two work together in a layered setup rather than as alternatives.

Flood preparation checklist

The pre-season sequence, from measuring openings through to a dry-run deployment.

FAQ

Residential flood barrier FAQs.

What flood barrier suits a residential garage roller door?
For a single roller door around 2.4 m, an Oxford 2-pack spans the width and a row of water-activated sandbags seals the base gap against an uneven driveway. A double door at 4.5–5 m takes two 2-packs linked end-to-end, or an ABS 8-panel pack. The base seal on a roller door is the weak point regardless of what goes in front of it.
How deep does a residential flood barrier need to be rated?
Flash flooding in residential areas typically produces 100–300 mm at garage floor level, which a 900 mm Oxford barrier covers comfortably. Width coverage and the quality of the base seal matter far more than height for most homes. Your council's flood mapping shows the expected depth for your site at different return periods, and checking it before buying is the single most useful step.
Can a tenant install flood barriers without the landlord's permission?
Portable barriers — sandbags, Oxford barriers, and ABS panels — leave no fixings and make no modification to the building, so a tenant can deploy them without landlord involvement. Aluminium demountable barriers need anchors drilled into the door frame, which is a fixture and requires the landlord's written consent under most residential tenancy agreements.
What should be done inside the house before floodwater arrives?
Raise furniture, appliances, and valuables at least 300 mm off the floor. Move vehicles to higher ground before starting barrier deployment, not after — a car in the garage blocks access to the opening you need to seal. Photograph the interior and contents before water arrives, because that record is what supports an insurance claim.
Do flood barriers need council approval on a home?
Portable deployable barriers — sandbags, Oxford barriers, and aluminium demountable systems — are temporary measures that do not require development approval. Automatic flood gates involve permanent ground works and may require a development application depending on the local council.
Can water-activated sandbags be reused?
No. They swell on contact with fresh water and cannot be deactivated, so they are replaced after each event. They stay swollen and effective for several weeks after activation depending on temperature and humidity. The sodium polyacrylate core is not suitable for stormwater drains, so dispose of used bags in general waste.

Not sure which barrier fits your opening?

Send us the opening width and a photo of the threshold, and we’ll recommend the right product for it.

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