Tarneit Building
Inspections

Water entry at garages and windows in new Tarneit homes

Why garages flood and windows leak in volume builds, how we find the cause, and what the builder must fix.

Owner Inspections · Tarneit 3029 · 2026-07-25

In short: Garage water usually comes from the driveway falling toward the door or a missing slab set-down. Window leaks usually come from flashings. Both are builder defects within the warranty period.

Garage water entry

Driveway falls toward the door, no set-down at the garage slab edge, or stormwater discharging beside the slab. We measure the fall with a digital level and trace the water.

Window leaks

Missing or reversed head flashings, unsealed sill trays and render cracked at the corners. Thermal imaging and a moisture meter show the path behind the plaster.

What the builder owes

Both are workmanship defects under the domestic building warranty. The report cites the NCC and the VBA Guide so the builder cannot call it a maintenance item.

Before you call us

Photograph the water when it happens and note the weather. It shortens the investigation.

Written by the Owner Inspections team from inspections carried out in Tarneit. Licensed building practitioners, Building & Plumbing Commission registration CDB-U 53425.

Guides

More defect reports guides for Tarneit

All guides →

Book a building inspection in Tarneit

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

FAQ

Questions Tarneit owners ask about this

Is garage water entry covered by warranty?

Yes if it is caused by the builder's work, which is usually the case. Landscaping the owner did later can complicate it.

Can you find a leak when it is dry?

Usually. Thermal imaging and moisture readings show past water paths, and a hose test can reproduce it.

Does this apply outside Tarneit?

The standards apply across Victoria. The local detail here, soil, builders and council process, is specific to Tarneit and the Wyndham growth corridor.

Who can I ask about my own property?

Call 1300 471 805 or use the quote form and add your question in the comments. A licensed inspector will answer.

CallGet a Free Quote