ROCKWOOL Wall Systems

UK leaders in external and internal wall insulation, brick slip cladding, polymer cement, silicone, and mineral renders.

On 1 October 2026, Wetherby Wall Systems Limited will begin trading as ROCKWOOL Wall Systems. Our trading name is changing, but our people, products and services remain the same.

Services We Provide

Systems & Solutions

Discover a huge range of EWI systems that can be tailored to your project needs.

Building Types

Explore building types, industry sectors & how our range of systems accommodates them.

Finishes & Components

Choose from a range of durable, stylish finishes - with thousands of options.

Customer Hub

Access personalised support and information specific to homeowners.

Technical Hub

Dive into detailed specs, guides, and advice from our expert team.

About Us

We have been at the forefront of the EWI industry for more than 25 years and have continually adapted and developed our product offering and support services to meet the changing needs of our customers and their clients.

Supplier of certified EWI Systems

We focus exclusively on External Wall Insulation, making us specialists in this field rather than offering it as part of a broader portfolio. Our expertise and experience in EWI ensure that we deliver high-quality results.

Comprehensive support throughout the design and installation process

We pride ourselves on our strong relationships with installers, contractors, and end clients.

Confidence in Handling Projects of Any Size or Type

Whether it's refurbishments or modular constructions, we have the knowledge, understanding, and experience to successfully manage projects of any shape or size.

Brands We Work With

Additional Services

Find an Installer

ROCKWOOL Wall Systems are a certified systems supplier and does not carry out any installations or contract work. we do have a wide network of experienced installer partners, where the company are familiar with our systems and has installers who have completed our training courses.

Samples

We offer a comprehensive product sample service that enables both you and your customer to confidently review a detailed sample of the finished build-up, colour, and texture before making a final decision.

Technical Helpline

Working with ROCKWOOL Wall Systems gives you access to a team of knowledgeable supportive staff. Each project is given extensive support alongside our products to help clients and specifiers achieve project-specific goals and objectives.

Training Programs

ROCKWOOL Wall Systems offers specialised training programs for EWI installers. These programs are designed to ensure that installers are well-versed in our innovative products and solutions, empowering them to implement the highest standards in the field.

U-Value Calculations

Understanding the importance of precision, we provide a complimentary U-value calculation service. This ensures that the correct insulation thicknesses are used, fully compliant with Building Regulations, and optimised for energy efficiency.

On-Site Support

Our regional on-site Technical Managers offer support to our contractors, delivering both off-site and on-site training, site reporting, and rigorous adherence to specifications. This hands-on approach guarantees the successful implementation of our systems in real-world projects.

Project Specifications

At ROCKWOOL Wall Systems, we work closely with you to understand your project’s unique needs, ensuring that the right specifications are met with precision and expertise, paving the way for success.

By fostering innovation, providing comprehensive education, and supporting sustainable practices, ROCKWOOL Wall Systems is not just building structures—we are building a greener future together.

ROCKWOOL Wall Systems is part of the ROCKWOOL Group – the global leader in sustainable stone wool solutions. As part of this international network, we bring the strength, innovation, and reliability of ROCKWOOL to every project, offering non-combustible, energy-efficient, and high-performance external wall insulation systems. Backed by global expertise, we’re building a safer, more sustainable future.

What others have said

Knowsley Metropolitan Borough Council has an excellent relationship with ROCKWOOL Wall Systems (previously Wetherby Wall Systems). Our successful partnership has seen 2050 homes in Kirkby and Knowsley benefit from external wall insulation as the primary measure in a £16.5m innovative regeneration project. The use of ROCKWOOL Wall System's EWI system has provided efficient and healthy homes for thousands of residents and helped to provide a greener and sustainable future for all of Knowsley.

Alan Broadbent, Group Manager - Housing and Programmes at Knowsley Metropolitan Borough Council

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