Fire Door Remedial Costs: Price Bands for Common Repairs
By the DC Fire & Security engineering team — installing and maintaining fire and security systems since 2010. Updated June 2026.
Quick answer
Remedial pricing is predictable. Intumescent or smoke seal replacement runs £50–£120 per door, closer replacement £150–£250 (adjustment from £40), gap correction through hinge or strip work £80–£200, rated glazing £150–£400, hardware corrections £60–£150. Most defects a survey finds are repairs. Full replacement (£600–£1,600) is the minority verdict, and competent grading reserves it for doors that have genuinely failed.
The remedial menu, priced
| Remedial | £ per door | Notes |
|---|---|---|
| Seal replacement (intumescent/smoke) | £50–£120 | The painted/missing-seal cure (per the seals guide) |
| Closer adjustment | £40–£80 | Sweep/latch tuning — the ten-minute fix (closers guide) |
| Closer replacement | £150–£250 | EN 1154 units; free-swing options +£100–£200 |
| Gap correction | £80–£200 | Hinge packing/adjustment, strip upsizing within rules (gaps guide) |
| Hinge replacement (set) | £80–£150 | Matched CE/UKCA sets with pads (hinges guide) |
| Rated glazing replacement | £150–£400 | Fire glass in certified systems (glazing rules) |
| Hardware corrections (letterplates, viewers) | £60–£150 | Rated components per modification rules |
| Drop seal/threshold works | £90–£180 | The flooring-change cure |
| Volume programmes | −15–25% | Blocks/schools batching defects per visit |
Repair vs replace: the grading economics
The decision discipline surveys apply: leaf and frame integrity rule (sound core + sound frame = repair country, almost regardless of defect count — a door wanting seals, closer and gap work totals £300–£450 against £850+ replacement); certification evidence weighs (provable doors justify investment; unprovable doors protecting sleeping risk drift toward replacement per the identification logic even when physically sound); and defect type matters (impact-damaged leaves, delamination, warps beyond adjustment = replacement verdicts; everything in the menu above = repairs). Block-scale truth from our programmes: surveyed estates typically grade 60–80% remedial, 20–40% replace — budgets transformed by the split (the survey guide's value chain in action). Distrust both extremes: replace-everything quotes monetise ungraded fear; repair-everything quotes defer failures into the next inspection cycle.
Delivery patterns and documentation
How remedial programmes run well: batched visits (defect-type runs — all seals one sweep, closers the next — or door-complete passes per core; volume discounts live here), components to certification (like-for-like seals specs, EN-marked closers/hinges, rated glazing systems — the component rules threaded through every door guide), records per intervention (photo before/after, components logged — the building file grows; quarterly checks thereafter verify persistence), and re-inspection closure (post-works gap/function verification — remedials end at evidence, not invoices). Sector rhythms: blocks batch via the communal programme logic; schools sweep in holidays; care settings work occupied with the gentleness their guides describe. Our remedials service prices from surveys (ours or independents') — bring any door schedule and the menu above becomes your costed programme.
Frequently Asked Questions
Can all these repairs be done in one visit per door?
Who can legitimately do fire door repairs?
Our survey says 'replace' on doors that look fine — why?
Do repairs restore certification?
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