Most buildings fail their first fire door inspection. That’s not unusual — fire doors deteriorate over time, get damaged by daily use, and are often installed or maintained incorrectly. The inspection tells you what’s wrong. Remedial works are what fix it.
This guide explains what fire door remedial works involve, what different repairs cost, how long they take, and what to look for in a contractor.
What Are Fire Door Remedial Works?
Fire door remedial works are the repairs and replacements needed to bring a fire door assembly back into compliance after a failed inspection. Remedial works can range from minor repairs — replacing a worn intumescent strip — to full door replacements where the door leaf or frame is beyond repair.
The scope of remedial works is determined by the inspection report. A good report will categorise findings by severity: Critical (immediate action required), Major (action required within a defined period), and Minor (action recommended). Legal action can follow if critical findings are not addressed.
The Most Common Remedial Works
1. Intumescent strip replacement
Intumescent strips expand in heat to seal the gap between door and frame. They deteriorate over time, get compressed, or are removed and not replaced. Replacing an intumescent strip is a minor repair — typically 30–60 minutes per door — but it’s one of the most common findings and critical to the door’s fire resistance.
2. Smoke seal replacement
Cold smoke seals (brush or blade seals) are fitted alongside or instead of intumescent strips to prevent cold smoke passing the door in a fire. These wear quickly in high-traffic doors. Replacement is straightforward and inexpensive.
3. Door closer adjustment or replacement
Fire doors must self-close and latch. A door that doesn’t fully close, closes too slowly, or fails to latch is non-compliant. Closers are mechanical and wear out — they can often be adjusted before replacement is needed. Replacement closers range from basic overhead closers to concealed overhead systems and floor springs.
4. Gap remediation
The gaps around a fire door (between door leaf and frame, and between door and floor) are specified in BS 8214. Gaps that are too large compromise the door’s fire resistance. Remediation may involve adjusting hinges, fitting new intumescent strips, or — in severe cases — rehinging or replacing the door leaf.
5. Hinge replacement
Hinges on fire doors must be CE-marked or UKCA-marked fire-rated hinges — typically three hinges per door. Plain steel hinges or insufficient hinge counts are a common finding. Replacing hinges requires the door to be removed and refitted.
6. Glazing and glazing bead replacement
Glazed panels in fire doors must be fire-rated glass set in fire-rated beads. Non-rated glass, cracked panes, or missing/incorrect beads are all compliance failures. Replacing fire-rated glazing requires careful selection of the correct glass specification and appropriate beads.
7. Door leaf or frame replacement
Where a door is damaged beyond repair — warped, delaminated, or with a compromised core — the door leaf must be replaced. A replacement fire door leaf must be certified to the same standard as the original assembly. In some cases, the full door set (leaf, frame, and ironmongery) may need replacing to ensure a compliant rated assembly.
8. Signage
Fire doors must display “Fire door — keep shut” or “Fire door — keep locked” signs as appropriate. Missing or damaged signage is a minor finding but still a compliance failure.
How Much Do Fire Door Remedial Works Cost?
Costs vary significantly depending on the scope of work, the type of building, and access requirements. As a rough guide:
- Intumescent/smoke seal replacement: £30–£80 per door (labour and materials)
- Door closer replacement: £80–£200 per door depending on closer type
- Hinge replacement (set of 3): £60–£150 per door
- Glazing replacement: £100–£300 per panel depending on size and specification
- Door leaf replacement: £250–£600 per door depending on specification
- Full door set replacement: £500–£1,200+ per door set including installation
Important: These are indicative ranges. Actual costs depend on door specification, building access, quantity of doors, and contractor rates. Always get a written, itemised quote before proceeding with remedial works.
Can the Same Company Inspect and Remediate?
Yes — and for most buildings, using the same contractor for inspection and remediation is the most efficient approach. There are two main reasons:
- The inspector already knows the doors. They’ve photographed every defect, measured every gap, and can scope the remedial works accurately without a separate site visit.
- No interpretation gap. When a third-party remediation contractor reads an inspection report, there’s always a risk of misinterpreting findings. The inspector doing the work removes that ambiguity.
At DE Fire Compliance, our inspectors are qualified carpenters and firestoppers — having started in the trade before moving into inspection and surveying. This means we can scope and carry out remedial works directly from our own inspection findings.
What Should Remedial Works Include?
Good fire door remediation should include:
- Written scope of works — itemised by door reference, matching the inspection report findings
- Product specification — fire-rated products specified and evidenced (intumescent strips, closers, hinges, glazing, beads)
- Photographic evidence — before and after photos for every door that has remedial work carried out
- Completion certificate or updated report — confirming which defects have been remediated and to what standard
This documentation is what demonstrates compliance to enforcing authorities, insurers, and residents. Without it, you have no audit trail.
How Long Do Remedial Works Take?
For minor repairs (seals, closers, hinges), an experienced team can typically complete 8–15 doors per day per operative. Door leaf or full frame replacements take longer — typically 2–4 doors per day depending on access and specification.
For a 50-door building with mixed findings:
- Seal and closer repairs on 30 doors: 2–3 days
- Door leaf replacements on 10 doors: 2–3 days
- Total programme: 4–6 days on-site (with minor disruption to residents or tenants)
Does Remediation Require a Re-Inspection?
Technically, there is no legal requirement for a re-inspection after remedial works. In practice, for any significant programme of works, a re-inspection or verification visit is strongly recommended — both to confirm compliance and to provide documented evidence that defects have been resolved.
A verification visit is typically much faster and cheaper than the original inspection, since only the remediated items need re-checking.
Need Remedial Works After an Inspection?
Our team carries out both inspections and remediation. We scope from our own findings — no lost-in-translation between inspector and contractor. Covering Bucks, Berkshire, Oxfordshire, and London.
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