Insulation Statements are now compulsory with all new tenancy agreements. Insulation will be compulsory in all rental homes from 1 July 2019.

Insulation Statements are now compulsory with all new tenancy agreements. Insulation will be compulsory in all rental homes from 1 July 2019.

From 1 July 2019, ceiling and underfloor insulation will be compulsory in all rental homes where it is reasonably practicable to install. It must comply with the regulations and be safely installed.

A landlord who fails to comply with the regulations will be committing an unlawful act and may be liable for a penalty of up to $4,000.

Landlords may be eligible for help from their local council. A number of councils allow homeowners to add the cost of insulation to their rates and pay it back over about nine years.

The healthy homes standards include new requirements for insulation, which will take effect from 1 July 2021 onwards.

More detail about the healthy homes standards will be available on this website from 1 July 2019. Until then, further information is available from the Ministry of Housing and Urban Development(external link).

Under the current requirements of the Residential Tenancies Act, landlords must ensure that their rental properties have the right ceiling and underfloor insulation by 1 July 2019.

Landlords who have installed new insulation since 2016 should already meet the 2008 Building Code, so they won’t need to do anything further when the Healthy Homes Standards take effect.

However, landlords who didn’t previously need to insulate under the current requirements, may now need to do so under the Healthy Homes Standards. Currently, if the property already has ceiling insulation which is at least 70mm thick and underfloor insulation, and both are in good condition, then landlords have not been required to take action.

Under the Healthy Homes Standards, all rental properties will need to have insulation which meets the 2008 Building Code, or is at least 120mm thick.

More information about Healthy Homes Standards(external link) 

How to assess your existing insulation

Landlords must make all reasonable efforts to find out what insulation is in their rental property. This includes physically looking, engaging a professional to do an assessment, or checking the council building file.

If you're not sure of the location, type and condition of the insulation, seek advice from a professional insulation installer.

Ask for written information to support the insulation statement. Some companies may do this at no cost or there may be a small charge.

They will also be able to advise and give you a quote if the insulation needs work to meet the regulations that come into force on 1 July 2019.

Consulting a professional early means you will avoid a last-minute rush – landlords who do not have the right insulation installed by 1 July 2019 may face a penalty of up to $4,000.

Insulation statements

A separately signed insulation statement must be included in all new tenancy agreements. Landlords must disclose whether there is insulation in the rental home, where it is, what type and what condition it is in, so tenants can make an informed decision.

Completing our insulation statement template will meet all the requirements for insulation disclosure under the Residential Tenancies Act. The landlord can attach an assessment from a professional to the tenancy agreement, but this will only count as an insulation statement if:

  • it includes all required information
  • is signed by the landlord.

Otherwise, the landlord can use the information from the professional assessment to help them complete the signed insulation statement.

A landlord who does not make a complete insulation statement or includes anything they know to be false or misleading is committing an unlawful act and may be liable for a penalty of up to $500.

Landlords of income-related tenancies are already legally required to provide ceiling and underfloor insulation that meets minimum standards unless they meet an exception. They can also complete our insulation statement template.


Insulation will be compulsory in all rental homes from 1 July 2019.


Due to the design or construction constraints of some property types, it is sometimes either not physically possible to insulate or would require major renovations to do so.


Know the law and the safety rules when working with insulation. Get a professional in if you are not certain you can manage the risks.

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