Riverstone Building
Inspections

Mould and Moisture Inspections in Riverstone

A mould inspection in Riverstone starts at the stain and works back to the water feeding it. We look for the likely source, whether that is a leaking shower, condensation from everyday living or a brick wall that cannot drain, and set out the building work needed to deal with it.

  • Every patch of mould mapped
  • Damp measured with a moisture meter
  • Thermal imaging where it helps
  • Likely source of the moisture traced
  • Shower, bath and laundry checked
  • Exhaust fan discharge checked
  • Weep holes and damp course
  • Repair scope in plain words
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What is included

What is included in a Riverstone mould and moisture inspection

This is a non-destructive visual inspection of accessible areas, using a moisture meter and a thermal camera, that weighs the likely moisture source against the National Construction Code, its condensation management provisions included, and AS 3740 for domestic wet areas.

Reading the damp

  • Readings at each stain or swelling
  • Edges of the wet patch
  • Thermal imaging of surfaces
  • Your notes on when it shows

Visible growth

  • Affected rooms and materials
  • How far the growth extends
  • Stained or swollen plaster

Wet areas

  • Hob and screen junctions
  • Waste and floor falls
  • Grout and silicone condition
  • Linings beside the shower

Ventilation and condensation

  • Where each fan discharges
  • Fan airflow and run-on
  • Sarking and roof space
  • Cupboards on outside walls

External walls

  • Weep holes open or missing
  • Damp course clear of paving
  • Window head flashings

Surface water

  • Paths falling towards walls
  • Downpipes spilling onto the ground
  • Soil and mulch against bricks

21 checkpoints across 6 areas on a standard Riverstone mould and moisture inspection. We need the property accessible and, on a new build, the builder aware an independent inspector is attending. Anything not complete on the day is recorded as such rather than passed.

Sample findings

Moisture problems we look for

Examples from recent inspections around Riverstone.

Surface level, recorded during a waterproofing inspection in Box Hill
The shower floor surface is uneven, which can cause water to pool and lead to leaks, Box Hill
Mould growth, recorded during a lock-up inspection in Turrella
Mould at the garage slab indicates persistent moisture and inadequate drainage, Turrella
Mould living room, recorded during a pre-purchase inspection in Chatswood
Mould growth on the lower living room wall indicates a moisture issue that needs fixing, Chatswood
Drainage, recorded during a pre-purchase inspection in Chatswood
The inspector noted the concreted area was not connected to the drainage system, Chatswood
Mould, recorded during a pre-purchase inspection in Carlingford
Excessive mould on the roof sheeting shows the surface holds moisture, likely from condensation, Carlingford
Leak, recorded during a pre-purchase inspection in St Marys
A leaking balcony from the adjoining property is causing water damage to the front boundary wall, St Marys
Evidence of water damage, recorded during a pre-purchase inspection in Crows Nest
Cladding showed signs of water intrusion which could cause mould or termite damage, Crows Nest
Bathroom leak, recorded during a pre-purchase inspection in Lane Cove North
Moisture from the roof has caused dampness in the bathroom ceiling, Lane Cove North
Area between the bathroom and bedroom, recorded during a pre-purchase inspection in Artarmon
Staining and thermal anomalies suggest waterproofing failure at the junction between the bathroom and bedroom, Artarmon
Bedroom left (inc. robe), recorded during a handover inspection in Artarmon
Ceiling plaster and surrounding finishes were saturated with live water dripping through a hole, Artarmon
Our building inspectors in the office
Why Riverstone owners choose us

Independent. Licensed. Insured.

  • A handover practice
  • The envelope still gets checked at the end
  • Flood history taken seriously
  • A list your builder can work
Guides

Mould and Moisture Inspections guides for Riverstone

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FAQ

Mould and Moisture Inspections in Riverstone: common questions

What happens at a mould inspection in Riverstone?

We map the visible mould, take moisture readings around it and use thermal imaging on surfaces where hidden damp is suspected. From there we trace the moisture back towards its likely source, inside the house and outside it. The written report then names that likely cause and the building work required to address it.

Do you test the mould or the air?

No. This is a building inspection of visible mould and the moisture behind it, so it does not name mould species or count airborne spores. NSW Health's advice is that since most mould can be seen, testing for it in the home is generally not necessary. If testing is needed, for instance because the source cannot be found, an occupational hygienist can take samples for laboratory analysis.

Is the mould making my family unwell?

That is a question for a doctor, not a building inspector. People with asthma, allergies or breathing problems may be more sensitive to mould, according to NSW Health, which suggests seeing your doctor if health problems follow contact with it. Our part is the building: the likely source of the moisture, the repair it points to, and whether further testing is needed.

Why is there mould on the ceiling of our new Riverstone home?

Condensation is the usual reason. Moist air from showers, cooking and clothes drying condenses on the coldest surfaces, often a ceiling below a gap in the insulation or a corner with little air movement. We check that the exhaust fans run, where they discharge and whether the room can clear its moisture. Under the NCC 2022 condensation provisions, a new house must discharge bathroom, laundry and kitchen exhaust to outdoor air rather than into the roof space.

The wall behind our shower has a mouldy skirting. What could cause that?

A leaking pipe, a failed seal at the hob or screen, or a waterproofing defect in the shower are all possible. High moisture readings at the base of the wall on the far side would support one of those. AS 3740 sets the waterproofing requirements for domestic wet areas, and confirming the source may need a plumber, the builder or further testing before the right repair is clear.

Can weep holes have anything to do with mould inside?

They can contribute. In a brick veneer wall, weep holes let water that gets into the cavity drain out above the flashings, and soil, paving or render laid over them keeps that water in. On newer Riverstone homes we look for weep holes that are missing, set too high or not sitting on their flashing, and for ground built up near the damp course.

We rent in Riverstone. Is the landlord or the tenant responsible for mould?

According to NSW Fair Trading guidance, responsibility follows the cause. The landlord is responsible where mould comes from a defect they did not repair within a reasonable time or from inadequate ventilation, while a tenant may be responsible for trapping moisture, such as by never opening windows or not running the bathroom fan. Tenants must let the landlord or agent know as soon as mould or damp appears, and a report on the building cause gives both parties facts to work from.

Our Riverstone home is only a few years old. Can we go back to the builder?

The Home Building Act 1989 statutory warranties may apply when the mould is caused by defective building work. Both periods run from completion: six years for a major defect, two years for any other defect. Waterproofing is listed in NSW Government guidance as a major element of a building. Put it to the builder in writing and seek help from Building Commission NSW, and if a warranty deadline is getting close, lodge at NCAT in time instead of waiting.

What does a mould inspection leave out?

Sampling, air testing, laboratory work and health advice are not included, and nor is anything destructive such as cutting linings or lifting tiles. Pressure testing of pipes, waterproofing certification and mould cleaning or removal are also outside the job. When the cause could only be confirmed by opening a wall or by a specialist test, the report spells that out and shows where.

How is the fee worked out, and what do we receive?

It depends on the size of the house and the number of affected rooms, and the instant quote gives you the figure before you book. After the inspection you receive a written report with photographs, moisture readings and the likely cause.

Do you cover Riverstone's estates and the suburbs around it?

Yes, including Grasslands, Northview, Parrington, Saffron Gardens, Heritage and Botanic Residences, as well as the older streets that predate them. We also inspect in Schofields, Vineyard, Colebee, Melonba and Box Hill, and across the wider north west growth area.

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