Christchurch
Canterbury Insulation
Warm Canterbury home interior
Why Insulate

The smartest investmentyou'll make in your home.

Insulating your Christchurch home means warmer winters, lower power bills, and a healthier place to live. Here's why thousands of Canterbury families have already made the call.

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Health & comfort

Warmer, drier, healthier homes.

Three reasons
it matters
01 / 03

Warmer in winter

Canterbury winters regularly dip between 1 and 10°C, and without proper insulation your home is fighting a losing battle. An uninsulated house can lose up to 35% of its heat through the walls and another 35% through the ceiling. Insulation creates a thermal envelope around your living spaces, keeping the warmth where it belongs, inside with your family.

02 / 03

Drier, less condensation

Condensation forms when warm, moist air hits cold surfaces like windows, walls, and ceilings. Insulation keeps those interior surfaces above the dew point, so moisture stays in the air where your ventilation system can deal with it. Less condensation means less mould, less damage to paint and furnishings, and no more musty smell greeting you on winter mornings.

03 / 03

Healthier home, healthier family

New Zealand research consistently links cold, damp homes to higher rates of respiratory illness, asthma, and hospital admissions, especially among children and older adults. When your home stays warm and dry, mould struggles to take hold and the air quality improves. A well-insulated home is not just more comfortable, it is genuinely better for your family’s health.

The money side

Cut your power bills,
pay it back in years.

The average New Zealand household spends between $2,000 and $3,000 a year on electricity, and a big chunk of that goes straight to heating. Good insulation can reduce your heating costs by 20 to 40%, which means real savings of $500 to $1,200 every winter. Most homeowners find that insulation pays for itself within three to five years. After that, the savings are yours to keep.

Annual saving
$500 to $1,200
Payback period
3 to 5 Years
Warmer Kiwi Homes
EECA programme
Property value
Healthy Homes ready
The numbers behind a warm home

Where the heat goes,
and what it costs you.

Scroll to reveal
the full picture
01 / 06
0%
Heat lost through the ceiling
An uninsulated ceiling is the single biggest source of heat loss in a typical Canterbury home.
02 / 06
0%*
Heat lost through the walls
Empty wall cavities perform at around R 0.3, wall insulation lifts that to R 3 to 4.2.
03 / 06
0%
Heat lost through the floor
Cold draughts from underfloor space pull warmth straight out of timber-floored homes.
04 / 06
$0
Saved per year, top end
Average household savings range $500 to $1,200 once a home is properly insulated.
05 / 06
Zone 0
Canterbury Climate Zone
Cooler than the rest of NZ, so insulation R-values matter more here than anywhere else.
06 / 06
0+
Canterbury homes warmed
Twenty years on local roofs and in local cavities, and counting.
* Up to. Varies by home. Figures based on EECA and BRANZ research.
Comfortable insulated Canterbury home
Day-to-day life

You'll feel it
the first night.

The lounge that used to take an hour to warm up holds its heat after dinner. The bedrooms aren't freezing in the morning. The heat pump runs less, and quieter. Buyers and renters increasingly check a property's Healthy Homes status before making a decision. Homes with higher energy efficiency ratings and proper insulation consistently sell for more.

Min ceiling
R 3.3
Heating cost cut
20 to 40%
From a Canterbury family01 / 01
“The kids stopped getting sick every winter. The power bill dropped by nearly a hundred dollars a month. We honestly should have done it years ago.”
M
Michelle & Dave
HALSWELL, 1990s FAMILY HOME
Get a free quote

Warmer home,
lower bills,
starting now.

Free, no-obligation home assessment. We'll walk through your ceiling, walls and underfloor and give you a fixed price by the end of the visit. If you may be eligible for the government's Warmer Kiwi Homes programme we'll point you to EECA so you can check directly.

Annual savings
$500 to $1,200
EECA support
Check eligibility