If you're a landlord you can provide a healthy, comfortable home and maintain and increase the value of your property.

Well-installed quality insulation is important

Ceiling and underfloor insulation is important for the health and comfort of your tenants but it also helps protect your investment. Insulation helps reduce humidity levels, reducing the risk of damage to the property from mould and damp. Insulation is also becoming an important factor in people’s decisions about whether to rent or purchase a property – and tenants are more likely to stay in a warm, dry house.

Changes to the Residential Tenancies Act (RTA) aim to make homes warmer, drier and safer for the million New Zealanders who live in rented accommodation. For more information about the requirements, visit the Tenancy Services website.

Insulation requirements - Tenancy Services website

Find out if your rental property is insulated

You can check the insulation yourself, or get a professional to come and have a look for you.

 Checking ceiling insulation

 Checking underfloor insulation

Types of insulation

We recommend using insulation accepted for use under the Government’s Warm Up New Zealand programmes - these products have been tested by BRANZ.

 List of accepted insulation products

Retrofitting or repairing foil insulation in residential buildings is now banned under section 26 of the Building Act 2004.

Current warnings and bans issued under the Building Act - Building Performance website

 Types of underfloor insulation

Finding an insulation provider

Find out what questions to ask when choosing an insulation installer and where to find trained installers.

 Insulation installers

Subsidies, discounts and payment options

Grants are available through Warm Up New Zealand: Healthy Homes for ceiling and underfloor insulation for rental properties occupied by low-income tenants.

Type of property Rental property built before the year 2000
Eligibility The named tenant must have a Community Services Card
Cost Maximum of 50% of the cost of the insulation

To register your interest in the programme and find out if you qualify, contact an insulation service provider in your area.

 Service providers with funding through Warm Up New Zealand: Healthy Homes

Some councils let you add the cost of installing insulation to rates payments.

 Payment options for installation and heating

Some companies contracted to insulate for the Warm Up New Zealand: Healthy Homes programme are offering special discounts to households not eligible for free insulation.

 Special discounts for insulation


We recommend using a professional installer but if you are installing your own insulation, read this guide covering all aspects of installation.

 New Zealand standard for installing insulation

Already insulated

There may be other areas where you can improve and maintain your property.

 Damp proofing