About Us

Sentry Fire Safety Group is the UK leader in timber fire safety and security doorsets.

We currently trade under two main brands and in a range of markets including social housing, education, healthcare, commercial and residential.

Operating nationally from two manufacturing facilities in Doncaster and Birmingham, Sentry has established a strong reputation for manufacturing products that meet the most rigorous quality and fire certification standards. Our wide range of customers operate across the built environment, focusing primarily on repair, maintenance, and improvement.

Established in 1989, Sentry became part of the Cairngorm Capital portfolio in 2019. Cairngorm supported the acquisition of E & S W Knowles in 2022, and we have continued to invest in the Group to solidify our position as a market leader as well as proudly being ranked 3rd for the fastest growing manufacturer in Yorkshire.

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Brochure

Social Housing

Brooklands Road, Adwick le Street, Doncaster DN6 7BA
01302 337 473 enquiries@sentrydoors.co.uk

Care Home, Education, Healthcare, Commercial, Leisure & Specialist

Moor Lane Industrial Estate,
Perrywell Road, Witton,
Birmingham, B6 7AT
0121 356 7046
sales@knowlesdoors.co.uk