"The Optimal Thermal Bridge Free 
Foundation Solution"
The Passivhaus Institute

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    On Site

The insulating foundation for energy efficient buildings

If you want to save energy in the future, you must literally start from the bottom up, since thermal insulation always begins at the foundation:

ISOQUICK® provides both an effective and inexpensive insulating foundation that can easily be adapted for any new-build residential or commercial project – be it a low-energy, passive, net-zero-energy or energy-plus house. The ISOQUICK® brand has national technical approval. In addition, we are the first provider of load-bearing perimeter insulation to be certified by the Passive House Institute Darmstadt as a “component suitable for passive houses”.
Customer service certainly does not end with the delivery of the floor slab insulation. Our guiding principle, “Everything from a single source”, guarantees considerable quality and precision, ranging from consultation and production all the way to installation. This is particularly essential in the case of thermal insulation beneath foundation slabs, as it is very difficult to make corrections after installing the floor slabs. There is no second chance when installing insulating foundations! Cut the risk by taking advantage of our many years of experience with insulating foundations. We are happy to advise you!
ISOQUICK® …insulate correctly from the ground up!

NEW BLOG

How ISOQUICK® Is Twice As Effective As Other Insulated Raft Foundations

Read Blog

ISOQUICK is a proud signatory of the Anti-Greenwash Charter

In recent years there has there has been increased recognition of misleading green claims or false information within the built environment industry. Greenwashing can come in many forms, from inaccurate sustainability targets to over-optimistic product specifications and it is hindering the development of a truly sustainable built environment.


We have signed the Anti-Greenwash Charter to demonstrate and promote responsible marketing practices in the built environment industry. We are committed to transparency, accountability and honesty in our sustainability messaging. 

"If you are planning your own low energy development and are looking for precise technical support, a responsive team and the project to be delivered on time then speak to the team at Isoquick! They helped us with the foundations of 3 x Passive homes near St. Albans and we couldn't have been happier. Looking forward to the next one with them!"

James Fisher

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"Excellent product; we went for the value install and Jonathon did all the tricky bits and between my wife and I we did the fill in.

They are very knowledgeable, helpful and with lots of experience.

All in all a first class experience."

Tim Doouss

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"Johnathon and the team at Isoquick are great.


We have used them on multiple passive house builds and we have always found their care and attention to detail second to none and their experience helping with the installation is always appreciated."

Ben East

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