Endurance Doors

We have a full range of different style Endurance Doors, explore the styles to find your perfect fit.

Hallmark Panels and Endurance have a range of GRP external composite doors that are secure, thermally efficient and with thousands of colour & glazing options, you can ensure that your home stands out from the crowd.

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Design Visit

  • Arrange a convenient time for us to visit your home for a pre-assessment.

  • We’ll listen to your wishes and create a bespoke design to suit your needs.

  • We suggest alternatives to deal with construction or planning issues.

  • Receive advice about the design best suited to your individual property.

  • Be made aware of all the colour options and styles available.   

  • Take initial measurements and assess factors that could affect the price.



  • Once you’re happy with your quote, a qualified surveyor takes precise measurements.

  • Our surveyor is MTC approved and experienced in technical planning.

  • We’ll explain and confirm the final design to ensure you’re 100% satisfied.

  • At this point, you can make alterations or ask any questions.

  • Before proceeding, a contract is drawn up to sign and confirm the order.

  • Once the survey has been checked, we will call you to agree a provisional installation date and outline the schedule of works.



  • On the pre-agreed installation day, the area should be clear and clutter free.

  • Before getting to work, we’ll make every effort to keep your home tidy.

  • Dust sheets will be used to protect your carpets and furniture.

  • Old doors, windows or conservatories will be taken away.

  • Your new windows or home improvement are installed by our expert fitters.

  • Any interior beading or finishing will be implemented and checked.

  • Close attention to detail will be paid to weatherproofing and the final finish.

  • We’ll clear up and leave your home as we found it.



  • All our home improvements are backed by an insurance-backed warranty.

  • Your warranty applies to issues caused by a manufacturing fault or just general everyday use.

  • If any issues do arise, we promise to repair or replace it promptly and for free.