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A home energy assessor with a tablet walking up the path of a white weatherboard home with a verandah at sunset.
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Getting your home assessed

An assessment tells you where your money is going before you spend any more of it. These guides cover what an assessor looks at, and what you can check yourself first for nothing.

3 guides

Guides for this upgrade

Start with the guide that matches what you're dealing with now. Each one stands on its own, with links to related topics where they overlap.

A technician pointing a thermal camera at a ceiling cornice, its screen showing a heat image
Insulation10 min read

Where the heat actually leaves your house

Ceiling, walls, floor, windows and gaps, in the order they matter, and what each one is worth in a typical brick veneer home.

Updated 15 August 2026Read →
An energy assessor going through a report on a tablet with a couple at their kitchen bench
Start here14 min read

The right order to upgrade your home

Insulation before heat pump sizing, sealing before ventilation, and solar later than you would think. The dependencies nobody explains before you are quoted.

Updated 22 August 2026Read →
A technician in a respirator testing a mould patch around a bathroom exhaust fan
Ventilation7 min read

You sealed the house. Now it’s damp.

Why a tighter house grows condensation and mould, what ventilation actually fixes it, and the order that avoids the problem in the first place.

Updated 9 August 2026Read →

5 upgrades

What’s involved in having your home assessed

These are the main things an assessor can look at before you spend money on anything else. You can also use these categories to find businesses that specialise in the work you need.

01 Home energy assessments and auditsSomeone 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.
02 Home Energy Rating assessmentsThe 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.
03 Home Energy Rating (NatHERS) for new homesA 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.
04 Draught and air leakage testingA blower door measures how leaky the house actually is, so sealing work can be checked rather than hoped at.
05 Thermal imaging and insulation scansA camera that shows exactly where the heat is leaving, which is rarely where people assume.

When you know which upgrade you need, find businesses that specialise in that work and service your area.

Find home energy assessors

When you’re ready for help

Find the right help for your next step.

Get a whole-home plan

A home energy assessor can look at your whole home, identify the biggest opportunities and help you work out what to tackle first to make it more comfortable, efficient and cheaper to run.

Find an assessor near you

Find the right specialist

Once you know which upgrade you need, find a business that specialises in that type of work and services your area.

Find a specialist near you