Showing results 1-12 of 21

Subfloor – damp soil

  • Surface water flowing underneath the building if the subfloor ground level is lower than the ground or paving outside the building perimeter, or if the ground slopes towards the building instead of away from it

    How to repair

  • High water table or natural spring

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Subfloor – ponding water

  • Surface water flowing underneath the building if the subfloor ground level is lower than the ground or paving outside building perimeter, or if the ground slopes towards the building instead of away from it

    How to repair

  • Blocked or overflowing stormwater drain or gulley trap discharging water under the house

    How to repair

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Subfloor – damp stains on underside of flooring

  • Leaking water or waste pipe 

    How to repair

  • Overflow or leak from wet area fixtures such as bath, shower, handbasin, dishwasher, clothes washer, hot water cylinder

    How to repair

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Subfloor – mould areas on underside of flooring

  • Damp subfloor space and/or lack of ventilation

    How to repair

  • Leaking water or waste pipe 

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Subfloor – timber decay

  • Damp subfloor space, lack of ventilation

    How to repair

  • Leaking water or waste pipe; overflowing or leaking from wet area fixtures such as bath, shower, handbasin, dishwasher, clothes washer, hot water cylinder

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Moisture entry through retaining foundation walls

  • Ground moisture has moved through a retaining wall as it is unlikely the wall will have been waterproofed, and there is: no perforated drainage pipe at the base of the wall for ground water removal no drainage gravel above the drain, resulting in the drainage pipe becoming blocked with silt no filter fabric between drainage gravel and the drain, resulting in the drainage pipe becoming blocked with silt the drainage behind the wall has stopped working due to the pipe being blocked or the drainage gravel becoming filled with fine soil material

    How to repair

Moisture entry through basement walls

  • Ground moisture, seen as efflorescence or internal paint damage, moves through the basement wall because of: failure of or missing damp-proof membrane no perforated drainage pipe at the base of the wall for groundwater removal no drainage gravel above the drain, resulting in the drainage pipe becoming blocked with silt no filter fabric between the drainage gravel and drain, resulting in the drainage pipe becoming blocked with silt

    How to repair

Tree roots blocking drain

  • Roots seeking out water – problems are more likely to occur with older clay pipes or perforated plastic drains 

    How to repair

Waste outlets not draining properly

  • Build-up of soap, hair, grease in waste trap causing blockage

    How to repair

Overflowing gully trap

  • Downpipe discharging rainwater into gully trap, overloading sewer capacity 

    How to repair

  • Gully trap is blocked by rubbish, leaves, debris

    How to repair

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Overflowing stormwater drain