Welcome to Frontier Doors

Our latest product offering: a composite door leaf

The composite door market is continuing to grow and we wanted to offer our customers a one stop shop for their window and door orders. This is why we have now introduced a range of composite door leaves – Frontier Doors.

Manufactured within the UK, our 44 and 48mm slabs fit perfectly into our composite door profile making it even easier to order your customers a complete composite door solution.

Designed to fit Epwin Window Systems profiles our door leaves are compatible with;

  • Profile 22 (universal composite door outer frame) CD70
  • Profile 22 Optima chamfered & sculptured
  • Spectus Elite 70 bevelled & ovolo

Profile 22

48mm thermoplastic leaf shown in Profile 22 Optima chamfered outer frame.


48mm thermoplastic leaf shown in Spectus Elite 70 beveled outer frame.

Leaf only or pre-prepped, we’ve a composite door solution to suit your business

We know our fabricators have different specialities. So whether you are fully tooled up or simply prefer putting the finishing touches onto to your products our composite door range has a solution for everyone.

Leaf only

Leaf only

We will deliver you solid timber core leaves for you to manufacture into door sets.



You provide us with the door sizes and hardware choices and we prepare the door to your specification. Door furniture is available via Safeware.

Add glass

Add glass

To help reduce the number of suppliers you need to work with, we can also offer a range of glazing options to complete the offer.

Online Portal

Simply select the door type you want (leaf only, pre-prepped, prepped with glass) and the portal will walk you through quoting or ordering your doors.

Order Here