Ground, floors and movement in Berwick VIC
Parts of Berwick sit on a basalt ridge that runs through Harkaway and Berwick, weathered to clay that swells when wet and cracks as it dries. That seasonal movement is behind much of what we measure in older homes: floors out of level, doors binding and cracks in plaster. Your own soil report sets the site class for a new build.
What is underneath
Historical surveys describe a basalt ridge through Harkaway and Berwick, with dark clays at the surface that swell and crack with the seasons.
How it shows in older homes
We have measured floor variation of about 50mm across an older Berwick house, with cracked plaster and binding doors to match.
Why drainage decides a lot
Water held against the walls keeps the clay under the footing wetter than the rest. That uneven moisture drives uneven movement.
For new builds
AS 2870 site classes are set lot by lot from the soil report. No single class applies across Berwick.
When to call for an investigation
When cracks widen, doors start binding or floors feel uneven. Measuring early shows whether movement is ongoing.
More about Berwick
- Building a new home in Berwick VIC
- Buying an established home in Berwick VIC
- Growth and development in Berwick VIC
- Permits, council and building disputes in Berwick VIC
- Termite risk and pest inspections in Berwick VIC
- What our inspectors find in Berwick VIC
- Wind, bushfire and drainage conditions in Berwick VIC
Written by our local inspection team from work carried out in Berwick. Licensed building practitioners, Building & Plumbing Commission registration CDB-U 53425.
