Castle Hill Building
Inspections
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Defect Investigation Reports in Castle Hill

A focused investigation of one problem in a Castle Hill home, such as water coming through a ceiling or cracking that keeps returning.

  • One problem, examined in depth
  • Moisture mapped with a meter
  • Thermal imaging where useful
  • Likely cause set out
  • Written for owner and builder
  • Photographs of every finding
  • Clear next steps
  • Upgrade to an NCAT report
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What is included

What is included in a Castle Hill defect investigation report

A defect investigation compares what is found on site with the approved drawings, the National Construction Code, the Guide to Standards and Tolerances 2017 and the Australian Standards for the element involved. It is non-destructive.

Tracing the water

  • Readings across the area
  • Staining patterns
  • Wet and dry boundaries
  • Seasonal history from you

Above the damage

  • Roof penetrations
  • Gutters and box gutters
  • Flashings at walls

Wet area sources

  • Shower and bath junctions
  • Hob and threshold detail
  • Failed sealant

Mould and decay

  • Visible mould extent
  • Swollen linings
  • Timber softening

Movement

  • Crack widths
  • Crack direction
  • Doors and windows binding

Paperwork

  • Plans and specifications
  • Builder correspondence
  • Previous reports

19 checkpoints across 6 areas on a standard Castle Hill defect investigation report. Rooms that are locked, roof voids without safe access and subfloors we cannot enter are named in the report, along with what would be needed to see them.

Sample findings

Sample findings from a defect investigation near Castle Hill

Water entry, mould and damage traced in one investigation.

Water entering through a bedroom ceiling, with mould following it, found during a defect investigation inspection in Forestville
Water entering through a bedroom ceiling, with mould following it, Forestville
Ceiling lining stained and mouldy where water had been coming in, found during a defect investigation inspection in Forestville
Ceiling lining stained and mouldy where water had been coming in, Forestville
Mould spreading across the ceiling around the point of water entry, found during a defect investigation inspection in Forestville
Mould spreading across the ceiling around the point of water entry, Forestville
Mould growth on a staircase where moisture had been sitting, found during a defect investigation inspection in Forestville
Mould growth on a staircase where moisture had been sitting, Forestville
Water damage in a downstairs bathroom under investigation, found during a defect investigation inspection in Forestville
Water damage in a downstairs bathroom under investigation, Forestville
Further water damage in the same downstairs bathroom, found during a defect investigation inspection in Forestville
Further water damage in the same downstairs bathroom, Forestville
Water damage across the wall and floor of a ground floor study, found during a defect investigation inspection in Forestville
Water damage across the wall and floor of a ground floor study, Forestville
Damage continuing along the study wall where it meets the floor, found during a defect investigation inspection in Forestville
Damage continuing along the study wall where it meets the floor, Forestville
Our building inspectors in the office
Why Castle Hill owners choose us

Independent. Licensed. Insured.

  • Moisture is measured, not guessed
  • Wet areas in older houses get extra time
  • Roofs and flashings at handover
  • One inspector from footing to keys
Guides

Defect Investigation Reports guides for Castle Hill

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Book defect investigation reports in Castle Hill

Instant online pricing, or talk to the booking team on 1300 471 805.

FAQ

Defect Investigation Reports in Castle Hill: common questions

Can a defect investigation be used at NCAT?

No. Its readers are you and the builder. NCAT needs an expert witness report prepared to Procedural Direction 3, which we can produce from the same work.

Will you open walls to find the leak?

No. The investigation is non-destructive. Where only an opening would confirm the cause, the report says where to open and why.

How much time does the investigation need on site?

Usually two to four hours on site, depending on how far the problem spreads through the house.

What does a Castle Hill defect investigation leave out?

Destructive investigation, engineering certification, geotechnical or laboratory testing, electrical and plumbing testing, mould sampling, rectification design and the repair work itself.

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