What Is A Fire Door Closer?
A fire door closer is a mechanical device. See also: fire door hinges guide and fire door regulations London.
A fire door closer is a mechanical device fitted to a fire door that automatically closes the door after it has been opened. Under UK fire safety law, most fire doors must be self-closing — this means they require a certified door closer.
Without a working closer, a fire door serves no purpose. An open fire door is the same as no fire door at all.
UK Law Requirement — Under the Regulatory Reform (Fire Safety) Order 2005, fire doors in HMOs, flats and commercial properties must be self-closing. A fire door held open by a wedge, hook or broken closer is a legal breach.
Types Of Fire Door Closers
Overhead Door Closers
The most common type. Fitted to the top of the door and frame. Visible but adjustable. Reliable, easy to fit and meet all UK fire safety standards.
Concealed Door Closers
Hidden inside the door or frame. Cleaner appearance but more expensive. Popular for premium residential and commercial properties.
Floor Spring Closers
Installed in the floor beneath the door. Used for heavy commercial fire doors and glass doors. Strongest option but requires floor excavation.
Electromagnetic Hold-Open Closers
Hold the door open electronically and release automatically when the fire alarm sounds. Used in hospitals, care homes and large commercial buildings where doors need to stay open for normal use.
Fire Door Closer Force Requirements
UK regulations require closers to have enough force to close the door fully against the intumescent strip resistance. Closers are graded by strength:
| Grade | Door Weight | Max Door Width |
|---|---|---|
| EN1 | 20kg | 750mm |
| EN2 | 40kg | 850mm |
| EN3 | 60kg | 950mm |
| EN4 | 80kg | 1100mm |
| EN5 | 100kg | 1250mm |
| EN6 | 120kg | 1400mm |
Most UK fire doors use EN3 or EN4 graded closers. Always match the closer to the door weight — an underpowered closer won't close the door properly against the fire seals.
⚠️ Common Mistake: Adjusting the closer to "slow" so the door doesn't slam can mean the door doesn't latch properly. A fire door must fully close and latch automatically — not just drift closed. Doorz London always tests closer function after installation.
How Doorz London Fits Closers
Every fire door we install includes a properly specified, certified closer. We check the door weight, select the correct grade, and test the full closing cycle. You get a door that closes properly every time — essential for fire safety and legal compliance.
Need Expert Help?
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More Expert Guides
- Fire Door Regulations London 2026
- How To Choose Door Hinges UK
- Door Handles For Internal Doors
- Fire Door Inspection London
- Door Fitters London
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The information on this page is provided as general guidance only and may contain errors or inaccuracies. Doorz London Ltd makes every effort to ensure the accuracy of content but cannot guarantee it is complete or up to date. UK building regulations, fire safety law and industry standards change regularly. Nothing on this website constitutes legal, professional or regulatory advice. Always consult a qualified professional for advice specific to your situation.
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