Full Fill Built-in Insulation System Continuous wall insulation system that delivers ultimate thermal performance with the added assurance of protection from wind driven rain.

>Find out more
right image

The Xi products have been developed to deliver the U-value requirements to meet Passive standards. It’s no longer just about U-values: how the system builds, how it interconnects at junctions and how it is witnessed and confirmed on site, are all equally important facets.

>Find out more
right image

Xtratherm offer an extensive range of technically enhanced rigid insulation products for commercial and industrial projects

>Find out more
right image

Tapered Roofing System
The XtraFall system provides a high performance precision solution to thermal insulation and water drainage on at roofs.

>Find out more
right image

The Xtratherm range of high performance insulation boards provides the ideal technically advanced solution for flat roof projects.

>Find out more
right image

PIR Insulation
High-performance, energy efficient, structural building system

>Find out more
right image



Developers and their design and certification team can rely on the expertise and professional support of the whole Xtratherm Team - it is not just about buying insulation products.

>Find out more
right image

Full Fill Built-in Insulation System

Continuous wall insulation system that delivers ultimate thermal performance
with the added assurance of protection from wind driven rain.

> Visit cavitytherm.com

High Performance rigid extruded polystryrene


PIR Insulation
Xtratherm UniSIPS is the ideal product when considering structural insulation solutions for wall, floor and roof panels. Technically advanced and thermally efficient, the load bearing panels provide a lightweight and economical solution to facilitate modern methods of construction.


Xtratherm offers a cost effective solution for builders and specifiers for the closing of cavities around window and door openings, preventing cold bridging, damp penetration, air infiltration and condensation.

CavityTherm Accessories

at Xtratherm

The Workplace Wellbeing Charter

Xtratherm have achieved the Workplace WellBeing Charter. The Workplace Wellbeing Charter is endorsed by the UK Department of Health and is widely recognised as the business standard for workplace wellbeing across the UK. The Charter is segmented into eight topic areas which have been developed in line with best practice and the latest research. These topic areas range from leadership and absence management to physical activity and healthy eating.



How we use our policies and practices to create a working environment that is conducive to health.

Absence Management

How we use information to help reduce sickness absence and support attendance.

Smoke Free

The ways in which we can encourage staff to be smoke-­free and healthier.

Physical Activity

How we actively promote the importance and benefits of regular physical activity and create opportunities for all our staff to become involved.

Health & Safety

How we monitor and improve health and safety in our work place.

Mental Health*

How we protect and promote the mental wellbeing of our full team, including appropriate policies, management training, and offer support mechanisms.

Healthy Eating

The ways in which we can actively encourage and enable us all to eat more healthily.


How we respond to and provide solutions for problematic use of intoxicants.

Working Better in the Workplace

The average person spends 90,000 hours of their life at work. That’s a big part of our lives, ar Xtratherm we are committed to making those hours as pleasant as we possibly can and enjoy the company of our fellow team members. We’re the Workplace Wellbeing Charter, the accreditation standard that is built on best practice, the latest research and business sense. The Workplace Wellbeing Charter’s mission is to seamlessly embed workplace wellbeing into every aspect of an organisation.




Request a Call Back

All the members of our technical team are individually BBA accredited to help you reach your low energy goals. Fill out your details below to request a call back: