Pakenham Building
Inspections
★★★★★ 4.8 on Google · 570+ reviews

Open mortar joints under Pakenham window sills

Gaps in brick sills, voids in mortar and a thick base bed joint, recorded at Pakenham handover inspections and why each one lets water in.

  • Pakenham 3810
  • 8 September 2026
  • 3 min read
Request a quoteLeave your details and an inspector will ring you.

No obligation. We use your details for your quote and may contact you about it even if you don't finish.

Fully licensed & accredited

In short: Brick veneer is the usual wall in Pakenham, and its weakest points are joints. At handover we keep finding them open under window sills, where water arrives first.

The sill is where rain collects

Rain running off a window lands on the brick sill below it. The sill is laid sloping and every joint filled so that water is thrown clear. On Pakenham handovers we have photographed open perpends and gaps along those sills, and gaps between the window frame and the sill itself.

Voids elsewhere in the wall

The same houses often show voids and holes left in mortar across brick panels and around feature piers at the entry. Each one is small. Together they are a lot of openings for wind driven rain to find.

At the base of the wall

We have also recorded a base bed joint thicker than the 20mm allowed by the Guide to Standards and Tolerances 2015, expansion joints packed with mortar instead of sealant, and slab edges standing proud of the brick face. All three are about water and movement at the bottom of the wall.

Fix it before keys

Raking out and repointing a sill, filling voids and clearing an expansion joint are a bricklayer's short job while the builder is still responsible. Put them on the handover list for your Pakenham home, from Lakeside to Cardinia Lakes, and check them again at the reinspection.

Written by our local inspection team from work carried out in Pakenham. Licensed building practitioners, Building & Plumbing Commission registration CDB-U 53425.

Blog

More from the Pakenham blog

All posts →

Book a building inspection in Pakenham

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

FAQ

Questions Pakenham owners ask about this

Are mortar gaps a structural defect?

Usually not structural, but they are a water entry defect, which can cause damage inside the wall over time.

Will the builder fix them?

Most do when the item is clearly located and referenced to the Guide. That is how our handover report sets it out.

CallGet a Free Quote