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All our products meet current Building Regulations as standard and many can provide solutions far above these requirements.

We are a BS EN 12608/PAS24 window and door system supplier, meaning our windows and doors meet enhanced security performance requirements.

We are a Secured By Design member. Our products are capable of meeting the requirements of this UK Police initiative that supports the principles of ‘designing out crime’ by use of effective crime prevention and security standards.

Our manufacturing processes are accredited to:

  • BS EN ISO 9001 Quality Management
  • BS EN ISO 14001 Environmental Management
  • OHSAS 18001 Occupational Health and Safety Management

We hold BES 6001 accreditation for responsible sourcing of construction products. Our products hold the VinylPlus® Product Label that makes it easy for customers and markets to identify the most sustainable and high-performance PVC products.

Hardware & Security

Security on Profile 22 is second to none thanks to innovative features and intelligent design. It means you can give your customers peace of mind that their properties are secure and protected as standard.

Profile 22 has a number of innovative features that mean security is assured and can accommodate the very latest in high-security hardware, advanced multipoint locks, keeps and key-locking handles.

The system also includes strategically placed local wall thickening – proven to deliver 35% better screw and hardware retention. The result is fewer maintenance call outs, fewer hardware problems and longer-lasting security.

The features mean that Profile 22 is secure as standard but can easily surpass the standards required by the UK Police-endorsed Secured by Design scheme when required.

WERs & U-Values

Epwin Window systems has a complete package of support to help you comply with thermal efficiency legislation and provide your customers with accurate, verified window and door specifications.

Window Energy Ratings provide a benchmark for comparing the energy efficiency of different window systems.

Our U-Comply Self-Help Calculator gives you the means to calculate the WER. The calculator has been approved by BSI as a Notified Body and automatically creates BSI Approved Notified Body Reports for CE marking.


At Epwin Window Systems we take our corporate social responsibility and environmental policy seriously and are committed to ensuring sustainable communities for all – both now and in the future.

Our products are all designed to maximise thermal efficiency, helping you to meet the environmental targets during your building’s lifespan. Examples of our innovation include the use of recycled reinforcement material (RCM) in our systems as well as our unique Aeroframe insulation technology.

Epwin Window Systems takes a whole lifecycle approach to its environmental actions. From component and raw material sourcing to manufacture, use and end-of-life, every aspect of the environmental impact is considered.

We manufacture in a sustainable way. Our manufacturing facilities are in the UK and we only supply UK homes, helping to reduce transport emissions. Our manufacturing processes are accredited to ISO 14001 Environmental Management.


With Epwin Window systems you can have complete peace of mind in the quality of the product you’ve chosen.

We understand that your business depends on the quality of the products you fabricate or install. When you choose Profile 22 from Epwin Window systems, you are choosing a high quality system and components that are backed by reassuring guarantees.

  • The Profile 22 profile is guaranteed for 10 years as standard.
  • Foiled finishes are covered by guarantees of between 7.5 years and 15 years.
  • Hardware supplied by us for use on Profile 22 products is fully covered by manufacturers’ warranties.