Established in 1989, Sentry Doors has built a strong reputation for supplying bespoke, fully certified timber fire and security door sets to the social housing, public sector, commercial and residential markets.

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social values

At Sentry Doors, we are committed to acting in a socially responsible way and are continually focused on reducing our carbon footprint. We aim to provide a warm working environment in which we continually develop our staff to meet the needs of our customers.

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Care & advice

We aim to offer a blend of in-depth technical knowledge and experience, delivering practical and cost-effective solutions to satisfy every client need.

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Keep up to date with the latest news and highlights from Sentry Doors.

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At Sentry Doors we pride ourselves on continually demonstrating commitment to the highest standards of construction practice. Evidence of this commitment can be found in our investment in the certification and accreditations we hold. Designed to offer peace of mind, our FD30s and FD60s door sets undergo independent testing and approval under both BM TRADA and Certifire standards. Our FD30s and FD60s fire door sets are certified by Secured by Design and we are one of the few companies nationally to have achieved dual certification for both Q-Mark Fire Door Manufacture and Q-Mark Enhanced Security for our FD30s Flat Entrance Doors.

  • BM TRADA Q-Mark Fire Door Manufacture
  • BM TRADA Q-Mark Enhanced Security Door
  • Secured by Design
  • Constructionline – Silver Member
  • Made in Britain
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BM TRADA Q-Mark Fire Door Manufacturer scheme provides reassurance that our fire doors are fit for purpose through on-going compliance to the original product specification.

This provides peace of mind that the products are manufactured to a consistent quality through independent verification by a third-party certification body.

Certification to the BM TRADA Q-Mark Enhanced Security Door scheme demonstrates that our fire door sets meet stringent security standards and are manufactured to a consistent quality.

The scheme supports the testing requirements for Secured by Design (SBD), the initiative to reduce crime on housing developments by incorporating crime prevention measures at the design stage.

At Sentry Doors, our FD30s and FD60s door sets are certified by Secured by Design, and we are one of the few companies nationally to have achieved dual certification for ‘Q-Mark Fire Door Manufacture’ and ‘PAS 24 Enhanced Security Door’ for our FD30’s.

Membership to the Secured by Design (SBD) scheme was made possible as a result of the our internal fire door sets meeting the strict set of criteria set out in PAS 24 Enhanced Security Door.

Constructionline’s aim is to help their members simplify procurement tasks, reduce risks and keep pace with legislation.

Achieving a Silver Membership demonstrates our ongoing assessment and commitment to providing confidence to our client base.

Constructionline connects us to buyers and keeps us up to date with relevant industry quality standards.

As a proud British manufacturer, we are pleased to have gained the official Made in Britain membership.

As the only official protected mark that certifies a product is made in Britain, this gives confidence to buyers that we are a trusted transparent manufacturer.

The Made in Britain mark offers us a great opportunity to showcase our products and provides networking opportunities with the MIB community of manufacturers for a collaborative approach to UK manufacturing.


Sentry Doors Limited (Sentry) is pleased to announce its acquisition of E. & S. W. Knowles & Company Limited (Knowles), accelerating its growth and creating the UK’s leader in timber fire safety and security doorsets. Established in 1923, E. & S. W. Knowles manufactures specialist timber internal doorsets with fire rated, acoustic and PAS 24 security certification. Operating nationally from a 50,000 square foot facility in Birmingham, Knowles offers bespoke, sector specific solutions that meet the exacting requirements of its commercial, healthcare, education and leisure customers.

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