Ostanes Engineering has identified inadequate drainage as a significant factor contributing to recurring cracks in residential properties. During a structural inspection of a low-set brick veneer home, the firm highlighted water accumulation and saturated soil as critical issues needing attention. The inspection was prompted by the property owner’s representative after a hallway crack reappeared following a previous repair.
The investigation, conducted under rainy and cloudy conditions, revealed several structural concerns. Hairline cracks were found around window and door frames, and a more prominent crack was noted in the hallway. Additionally, gaps along sections of the cornices and exposed slab edges were observed. Despite these findings, no substantial cracking was detected in the external brick walls of the home.
Key observations included pooling surface water beside the property and in various parts of the yard, which contributed to the saturated ground conditions. Ostanes Engineering identified inadequate surface drainage as the primary concern, suggesting it could affect moisture levels near the footing zone and cause seasonal ground movement, potentially damaging internal finishes. However, the inspection did not confirm a specific ground movement mechanism, and the recurring hallway crack’s cause could not be determined from its visible characteristics alone.
The assessment was limited to a visual inspection without excavation, footing exposure, level surveys, geotechnical investigations, plumbing tests, or removal of internal finishes. These limitations mean visible symptoms may not reveal the underlying causes. Recommendations included consulting a licensed plumber or experienced drainage contractor to enhance surface water management, reviewing ground levels near slab edges, and considering subsurface drainage if surface improvements are insufficient. It was advised not to proceed with cosmetic repairs until drainage issues are addressed.
For the property in question, cosmetic repairs were recommended only after drainage improvements and a six to twelve-month observation period. Instead of a surface patch, local replacement of the damaged hallway plasterboard was suggested. Further engineering assessment was recommended if cracks widened, reopened, or appeared in new areas, especially if accompanied by sticking doors or visible building distortion.
Ostanes Engineering offers structural crack and movement inspection services through its website, allowing homeowners and property managers to submit property details, photographs, previous reports, and a problem history to define an appropriate inspection scope.
About Ostanes Engineering
Ostanes Engineering provides structural inspections, pre-purchase assessments, crack and movement investigations, and forensic and dispute reporting across Brisbane and South East Queensland.
Media enquiries and inspection requests: Ostanes Engineering
Derafsh Pty Ltd
Ostanes Engineering
+61 411 631 777
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