Optimo Underfloor Insulation

CSR Bradford's Optimo™ is the highest rated underfloor insulation for suspended timber floors, keeping homes warmer and reducing energy costs through winter.

Most New Zealand homes have ceiling insulation and new homes now also include wall insulation which is installed at the time of construction. However, for homes with suspended floors, it is one element of the envelope that may not be insulated and this can contribute to as much as 20% of heat loss in winter. Bradford's Optimo Underfloor insulation is the solution, allowing you to address this neglected area and maximise your home's comfort and energy efficiency.

A polished timber floor looks warm and inviting – but looks can be deceiving. Without insulation, your flooring material is the only thing between you and the elements. Heat can be lost and draughts can enter through the floorboards making your home cold and uncomfortable. Bradford Optimo provides a barrier to reduce heat loss and cold draughts entering through gaps in the flooring.

Best acoustic performance
Read our reviews

We love to hear what our customers think of Optimo as they make themselves comfortable. If you’d like to leave us a review, please use our contact form. Thanks!

Chris (DIY Installation).
Easy to install and the impact was noticed straight away. Great product.

David (Professional Installation).
My older style house has polished floor boards with many large gaps that would let the breeze through. The underfloor insulation has sealed all the gaps and kept my house significantly warmer in winter.

John (DIY Installation).
The house is definitely warmer and therefore requires less heating. As a DIY installer, it was difficult in confined spaces (insufficient clearance for professionals). It was, however, worth the effort and I would recommend the product.

Siobhan (DIY Installation).
We did the install ourselves, and it was very manageable. I would recommend the product as the floor is not longer draughty and is also quieter which is an added benefit for hard floors.

Brian (DIY Installation).
Did just what I wanted. Helped during the winter with heating bills!

Monica (DIY Installation).
We were very happy with the Optimo. My husband installed it on our 2 bedroom new granny flat he was building and it was easy to install and stayed in place perfectly.

Paul (DIY Installation).
Excellent product and not difficult to install. The underfloor insulation has made a huge difference by keeping the whole house warmer in winter time and cooler in summer time and has reduced the overall costs of heating and cooling significantly.

Jasmine (DIY Installation).
We purchased two brands of underfloor insulation based on different widths that we required, and the Optimo segments were far superior in terms of ease of installation. They've only just been installed so it is hard to comment on reducing heating requirements or electricity bills, but we have been very pleased so far!

Gordon (DIY Installation).
I'm doing a renovation and decided to use Optimo for the dual purposes of acoustic and thermal insulation along the northern rooms of my home. The segments are firm and easy to trim with a cutter. 
As I was beneath the house installing I heard the sound of the kids running through the TV room began to noticeably lessen as I covered more of the underfloor area. Once I re-install my home theatre gear I'm sure my neighbours will be appreciative as well. 
In the master bedroom not only is external sound reduced but we've noticed that our underfloor heating doesn't restart as frequently to retain a constant temperature. I'll be getting some more Optimo soon so I can do the southern side of the house too.

Grahame (DIY Installation).
Optimo is an excellent product to use for underfloor insulation. It is very uniform in structure and is quite easy to install and holds in place well. Many of our joists were not evenly spaced so the Optimo segments had to be cut to fit which was straight forward with a sharp knife and straight edge. Have not yet completed all underfloor areas but can notice an improvement in floor warmth in areas insulated.

Anthony (DIY Installation).
Underfloor insulation has made a great difference. The floor always feels warm, and there are no draughts coming through the old floorboards. Installation is really straightforward, even in the tight space under the house. I would definitely recommend this to anyone.

Wendy (DIY Installation).
We live in a coldish area, temps down to 2 degrees and have polished floors throughout our house. Couldn't walk on the floor in winter as it felt like ice, since installing the insulation ourselves we can now walk barefoot comfortably! We should have done it years ago!

Choosing Optimo
How many packs will I need?
Installing Optimo
Healthy Homes' Installation video