Brick sealing · Queenstown & Wanaka
Brick & block sealing, breathable protection that lasts.
Penetrating water repellents for clay brick, concrete block and heritage masonry. Stops efflorescence, slows lichen, protects against frost damage — without changing how the brick looks or letting the wall stop breathing.
Recent work
Before and after.
Drag the handle on each frame to wipe between the before and the finished result.
Brick we seal
Every brick wall has its own moisture story.
Clay brick façades
Clay brick wicks water on a daily cycle. Our Water Repel sealer fills the pore structure with a breathable hydrophobic layer, so the brick stops absorbing rain while still letting internal moisture out. Net result: no more wet patches, no more efflorescence cycles.
Concrete block walls
Concrete block is highly porous and grows lichen aggressively when wet. Sealed block walls dry faster after rain and resist biological colonisation for years.
Boundary & retaining walls
Brick and block retaining walls take a constant moisture load from the soil side. Sealing the visible face stops salts migrating outward and crystallising on the surface as efflorescence.
Heritage brick
Older brick walls with lime mortar need a sealer that's gentle on the substrate and lets the wall breathe. We don't apply film-forming products to heritage brick — only penetrating silane/siloxane formulations that work with the original construction.
Architectural brick feature walls
Modern architectural brick that's been chosen as a design feature deserves to be protected. A sealer extends the visual lifespan of the brick and keeps the design looking sharp.
Garden & landscape walls
Brick walls in landscape settings get the worst of both worlds — irrigation overspray, soil moisture and full sun. Sealing slows weathering and keeps the wall looking finished, not faded.
How we work
Slow when it matters, fast when it doesn’t.
01
Substrate check
Different bricks have different porosities. A spot-test confirms absorption rates so we apply the right number of coats for full penetration.
02
Clean first
Sealing dirty brick traps the dirt under the seal. We clean first — properly — so the sealer bonds to the substrate, not the lichen.
03
Penetrating application
Water Repel goes on as a breathable penetrating treatment. It doesn't change the brick's appearance, doesn't film over the surface, and doesn't darken the colour.
04
Long-life protection
Properly applied, our brick sealer lasts 7-10 years on most substrates. The wall sheds water, resists efflorescence, and stays cleaner for longer.
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