Professional Indemnity Insurance can be a condition of an Energy Rater’s accreditation, program participation or contractual arrangements.
The requirements depend on the assessment pathway.
NatHERS new-home assessors #
The NatHERS accreditation framework for new-home assessors requires Professional Indemnity Insurance that is appropriate for the volume and scope of work undertaken.
The minimum indemnity value is currently $1 million.
NatHERS existing-home assessors #
The current NatHERS requirements for accredited existing-home assessors include:
- At least $2 million Professional Indemnity Insurance
- At least $10 million Public Liability Insurance
- Evidence that the individual assessor is covered by the relevant insurance arrangements
The insurance must be maintained while accredited.
Assessor accreditation providers can also impose requirements consistent with the relevant NatHERS framework.
What about other services? #
Client contracts, government programs and other assessment schemes can impose additional requirements.
Energy Raters should not assume services outside their accreditation are automatically insured.
Activities such as:
- Building design
- Commercial energy assessments
- Project management
- Broader sustainability consulting
should be disclosed to the insurer.
Requirements can change, so assessors should confirm the current accreditation rules when applying, renewing or expanding their services.
Webber Insurance has a specialist facility for Energy Raters and Thermal Performance Assessors.
Contact our team if you need help comparing an accreditation requirement with your insurance.

