Is my house suitable for retrofit wall insulation?
If your external walls have a cavity, your house is often suitable. Which wall types qualify, which don't, and what building paper, old wiring and leaks mean for yours.
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Do I need a building consent for wall insulation, and who arranges it?
Retrofit wall insulation needs a building consent or a council exemption. Your Insulmax representative prepares and lodges it, and confirms your council's fee before you proceed.
What to ask a wall insulation company before you sign
Most of a wall insulation job is hidden once the holes are filled. Nine questions to ask any company, and what a good answer looks like for each.
Will blown-in wall insulation wick moisture and hold it against my framing?
Some insulation products do absorb water and hold it against timber. Insulmax doesn't absorb or wick water and stays vapour-permeable, so the wall keeps draining and drying as it always has.
Is Insulmax a foam? What foam insulation is, and how blown mineral fibre compares
No. Insulmax is a dry mineral fibre made from recycled glass. What foam insulation is, where it's used, and how the two behave differently inside a wall.
Does blown-in wall insulation settle over time?
Blown-in insulation has a reputation for settling. Which products it applies to, what Insulmax’s S1 rating means, and a wall opened nine years after install.
A Warm Thank You (and Burgers to Go)
When Holly's neighbour raved about her newly insulated walls, Holly gave the same Wellington crew a call. She was so impressed with the result, she sent the team off with morning tea and burgers to go. Here's how a warmer, quieter, drier home (and one very grateful crew) came together.
Warmth Where It Counts in Dunedin
Petra's 1970s brick veneer home had heavily glazed front rooms and chilly bedrooms at the back. See how a targeted Insulmax® install changed things.
Trapping the Heat in Wellington
Andrew's 230sqm two-storey home was concrete, jib, and not much else — no insulation, no warmth, and a fire that had to be fed for hours every night. Here's how that all changed.
Above and Beyond
Discover how Melanie transformed her cold 1930s Southland character home into a warmer, more comfortable space and reduced her power bills after insulating her walls with Insulmax.
A Warmer Heritage Home in Dunedin
Moving from Auckland to Dunedin meant a steep learning curve in winter warmth. Insulmax wall insulation delivered a noticeable two degree lift and cut heat pump use from hours to just one.
Why Your Power Bill’s Still Climbing and What You Can Do About It
Find out how insulation helps cut your power bill, what’s driving price hikes, and why investing in your home could be one of the most practical things you do this winter.