Get Your Walls
Insulated
Before Winter

Up to 40% of your home's heat escapes through uninsulated walls - costing you money every single day. Fix it in 1–2 days, with no mess and no renovations.


Heat Loss Reduction

Product durability

days to install 

The Real Cost of Doing Nothing

Uninsulated Walls
Will Cost You

01

Your Heat Is Escaping

Up to 40% of the heat you pay for walks straight out through your walls. Your heat pump is working overtime — and you're footing the bill every month.

02

Power Bills Keep Rising

Heating an uninsulated home in Christchurch winter is like leaving a window open. Your walls are the single biggest upgrade you can make to reduce running costs.

03

Cold Rooms Affect Health

Cold, damp homes are linked to respiratory illness, poor sleep, and worse wellbeing — especially for young children and the elderly. Insulation isn't just comfort, it's health.

04

Summer Is The Time To Act

Most people wait until they're already freezing. Book now while the weather is fine — installation is faster, easier, and you'll be fully warm by the time winter hits.

The Calculator

STOP GUESSING
The cost of insulation


Estimated Cost
Estimate only. Final price confirmed at your free in-home assessment.
The Process

Quick, Tidy &
Stress-Free

Step 01

Free Quote

We assess your home and provide an accurate, no-obligation quote. Takes about 20 minutes.

Step 02

We Drill & Blow

Small holes are drilled in your exterior wall. CosyWall insulation is blown in at high density to fill every cavity.

Step 03

Sealed & Painted

Holes are plugged and colour-matched. No sign we were ever there — except a warmer home.

Step 04

Done in 1–2 Days

Most homes are complete in a single day. You can stay home. By evening, you'll already feel the difference.

Why CosyWall Insulation

Built to Last
50 Years

Won't Shrink or Slump

Installed at high density, CosyWall never settles or degrades. Once it's in your walls, it performs day in, day out — forever.

CodeMark Certified

The only blown wall insulation in NZ with CodeMark certification — independently audited for quality and safety on a regular basis.

Highest R-Value Available

R2.9 to R4.2 depending on cavity type — equivalent to the top batts and blown products available in New Zealand.

Reduce Power Bills

Over 30% heat loss reduction means your heating systems run less. Most homeowners see noticeable savings within the first winter.

10% Price Beat

Found a lower price on blown wall insulation? We'll beat it by 10%. No questions asked.

What Christchurch Homeowners Say

Real Homes.
Real Warmth.

The difference in our 1960s home has been immediate,warmer, more comfortable, and even quieter. It’s made a bigger impact than we expected and is easily one of the best upgrades we’ve done.

The installation was tidy and efficient, and everything was explained clearly along the way. You can tell these guys really know and love their stuff.

- DH

Canterbury insulation were 35% cheaper than the competition, and we couldn't be happier with the job they've done. Great team, the outside of the house looks exactly the same as it did before and we can feel the difference inside immediately. Thanks so much.

- Travis Dixon

After many years living in a cold house, we recently got our whole house insulated with Matt and his team. Can't speak high enough made whole process quick and easy. Our home is now warm and cozy. We can't believe the difference noticed already. Thank you all so much! They did such a tidy job and we're so professional and lovely to deal with.

- Sarah Fuller
Free. No Obligation. Fast.

Get Your
FULL FREE Quote
Today

Our team will be in touch to assess your home and give you a quote.

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Or call us directly: 0800 220 055 — we're happy to chat.

📍 Serving Christchurch & Surrounding Areas

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