About 10-14% of heat loss from an average home is lost through the ground floor.

Floor Insulation

Traditionally underfloor insulation has been a bit of a luxury in New Zealand but this is an important part of your home’s thermal barrier. In most newer homes underfloor insulation is taken care of as part of the slab design, however for older New Zealand home’s underfloor insulation makes a big difference to your inside comfort levels.

Canterbury Insulation can provide two choices for underfloor insulation. We can use polyester blankets for underfloor insulation which are quick to install and highly effective. Alternatively, we could opt for a blown insulation solution which can achieve higher thermal performance and can also be installed in mid floors.

Improves Thermal Performance
Underfloor insulation improves your homes thermal performance and can help to reduce your homes heat loss.
Sustainable Manufacturing
Our floor insulation products are sustainably manufactured and made from up to 80% recycled material.
50 Year
Our floor insulation products are long lasting, highly durable and designed to last the life of your building.
Floor insulation helps reduce your carbon footprint by improving the energy efficiency of your home.

Polyester Insulation Blankets

Polyester fibre underfloor insulation blankets are manufactured specifically for placing between floor joists, against the underside of the floor. Our floor insulation blankets have superior strength in both directions compared to some other typical polyester floor blankets or batting. The rolls are uniquely sized to facilitate handling in confined sub-floor spaces and can be torn readily to suit joist length providing great installed insulation R-values.

It’s always easier to use polyester blanket insulation for your floors rather than sheet or segment style insulation. Polyesters typically also have the advantage of having a slightly higher installed R-value than polystyrene – the higher the R-value, the greater the insulator’s effectiveness.

Want to discuss insulating your floor or mid floor?

We’d love to have a chat to you about your floor insulation project. Give us a call on 0800 220 055 or contact us today for more info,

Hear from our clients
Don’t just take our word for it – Here’s what our clients are saying about us!

We have noticed the differnce, we don’t have a lot of heating in the house and have decided we won’t need anything serious now that we have been completely insulated. We will be referring you and your company to all we get the chance too.

Wall Insulation

I have just put CosyWall into my older wooden house which was always colder inside than outside in the winter. The heat pump had to work extra hard but still had to wrap up in a blanket to keep warm.

Guernersey Street
Wall Insulation

I would recommend CosyWall to everyone for a warmer, less draft and quieter better sleep and less worry about power bills that I couldn’t pay. The staff went out of there way to do a excellent job with no stress.

Wall Insulation

Since you have insulated our ceiling and underfloor we have noticed a huge difference in how warm our house is. Thank you to you and your team.

Ceiling and Underfloor Insulation

Thanks for the excellent service, Arron was very conscientious and hard working, he took the time to explain what he was doing a very professional job. He is a real asset to your company, thanks for a warmer house.

Wall and Ceiling Insulation

I just wanted to say thank you for a job well done, please pass my thanks onto your team, they couldn’t of been nicer or more focussed on the work at hand. They answered any questions that I asked and did a great job.

Wall, Ceiling and Underfloor Insulation

Thank you for a stellar job of insulating our walls of our house. Your guys were fast and professional and by the end of the day we noticed a massive difference in how warm our rooms were. Happy to recommend your services.

Wall Insulation

We are very happy with the job the guys did and can definitely feel a big difference, thanks again.

Wall Insulation


The team at Canterbury Insulation would love to discuss how we can make a real difference to your home.


The team at Canterbury Insulation would love to discuss how we can make a real difference to your home.