Cracked walls in Thornlie
Much of Thornlie was built in the 1970s and 80s, mostly double-brick homes on a mix of sandy and clay-based soils near the Canning River. At that age we regularly see stair-step cracking from footing movement, rusted lintels over windows and sliding doors, and the first signs of wall tie corrosion.
Common jobs in Thornlie
- Stair-step cracks through mortar joints
- Lintel replacement over windows and sliding doors
- Crack stitching to rendered and face brick walls
- Repointing tired mortar
How we repair it
Every job starts with a free site visit. We find the cause of the movement, then give you a written specification and quote. Most cracks are repaired with Helifix crack stitching: stainless steel HeliBars bonded into the mortar joints, then repointed or rendered to match. Where needed we also replace lintels or wall ties, or underpin the footing. As a Helifix Approved Installer, we offer a 10-year indemnified guarantee on most Helifix repairs (T&Cs apply).
