
Sapien
4.8 52 Google reviews
Based in Williamstown North

A blower door test measures exactly how leaky your home is and helps find where the air is getting in. It shows whether draught sealing has actually worked.
A common sign
“We’ve sealed everything we can find, but the house is still draughty.”
About draught and air leakage testing
During a blower door test, a powerful fan is fitted to an outside door to pull air out of the house. That draws outside air in through every gap, which makes leaks easier to find and lets the specialist measure how airtight the home is.
Testing before and after draught sealing shows how much difference the work made. It’s also useful when building or renovating to check the result.
Draughts you can’t locate
Checking draught sealing has worked
New homes and major renovations
Testing before sealing gives you a starting point. Testing again afterwards shows you exactly what the work achieved.
Air leakage testing specialists
A few of the 16 listed across Australia

4.8 52 Google reviews
Based in Williamstown North

5.0 295 Google reviews
Based in Melbourne

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Based in Keilor East

5.0 12 Google reviews
Based in Williamstown

5.0 7 Google reviews
Based in Holt
More in energy assessments
A professional home energy assessment shows where your house loses heat and power, so you don’t waste money on upgrades you don’t need.

Someone walks the house and tells you what to do first, in what order and what it is worth, usually as a written report you can hand to whoever does the work.

The government rating for a home that already exists, run under NatHERS. A star rating for the house you live in, rather than one for a house on a plan.

A star rating for a home that is still on paper. The assessor works from the plans for a new build or a major renovation, usually for the building permit, so nobody needs to visit a house that does not exist yet.

A camera that shows exactly where the heat is leaving, which is rarely where people assume.
Before you choose an installer



Related goal
See the upgrades that stop draughts and heat loss, once you know where the air is getting in.