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Fire Safety

Fire Door Remedial Works — seal replacement, closer adjustment & gap remediation

Failed an inspection? Most fire doors can be put right without replacing them. We fit new intumescent seals, adjust or swap closers, bring gaps back inside tolerance and change non-rated ironmongery — then issue the completion report that closes the finding off. Far cheaper than new doors, and just as compliant when the leaf is sound.

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Fire door remedial inspection at Queen Elizabeth School in Luton

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Quick answer

Fire door remedials and repairs

Fire door remedials fix failed inspection items such as excessive gaps, damaged seals, faulty closers, loose hinges, missing signage and minor frame issues. Send us your report or photos and we can usually split the works into urgent, advisory and quote-ready items before a site visit.

We price from existing reports where the defects are clear.

We prioritise urgent compliance failures before advisory works.

We issue photographic close-out evidence for your records.

We tell you when replacement is genuinely needed instead of repair.

Cost / quote guidance

What affects the price?

Report review

Free

Upload an FRA, fire-door report, defect schedule or photos.

Minor remedials

Quoted per item

Seals, signage, closer adjustment and minor joinery are priced from the defect schedule.

Multi-door programmes

Itemised quote

Door-by-door pricing with close-out evidence after completion.

Get a fire door remedial quote

Near me coverage

Looking for fire door remedials near you? DC Fire & Security is based in Luton and carries out fire door remedial works across Luton, Dunstable, Hitchin, St Albans, Hemel Hempstead, Bedford, Stevenage, Watford, Milton Keynes, Barnet, North London and nearby towns.

For urgent quotes, send the report, photos, plans or a short description. We will tell you what can be priced remotely and what needs a site check.

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Who is this for?

For anyone holding a fire door inspection report full of red items — building managers, landlords, responsible persons, facilities teams — who needs the defects closed out and the paperwork to prove it.

Commercial buildings with fire door inspection defects requiring remediation
HMOs and residential blocks under the Fire Safety (England) Regulations 2022
Schools and multi-academy trusts with fire door condition reports
Care homes and healthcare facilities with ongoing fire door maintenance requirements
Hotels, hostels, and serviced accommodation with inspection findings
Any property where a fire risk assessment has identified non-compliant fire doors

Common fire door defects we remediate

Intumescent strips damaged, missing, painted over, or fitted wrong in the first place
Cold smoke seals worn brittle or absent, letting smoke past in the first minutes of a fire
Closers broken, disconnected or badly adjusted, so the door won't self-close from every angle
Perimeter gaps outside the 3mm (+/-1mm) tolerance — a small number that quietly wrecks the door's fire resistance
Hinges worn, short of screws, or simply not fire-rated
Cracked glazing, single-pane glass, or beads that were never fire-rated — one weak point fails the whole assembly

What's included in our fire door remedial service

Intumescent Seal Replacement

Removal of damaged or non-compliant strips and fitting of new Lorient intumescent and cold smoke seals matched to the door's certification.

Door Closer Adjustment & Replacement

Adjustment of existing closers for correct closing speed and latching, or replacement with Dorma overhead closers certified to BS EN 1154 where units are beyond repair.

Gap Remediation

Adjustment of hinges, re-hanging of door leaves, and frame packing to bring perimeter gaps within the compliant 3mm (+/-1mm) tolerance on all four edges.

Hinge Replacement

Fitting of CE-marked fire-rated butt hinges (minimum 3 per door) where existing hinges are worn, loose, or not fire-rated.

Glazing Bead & Glass Replacement

Replacement of cracked or non-fire-rated glazing with certified fire-resistant glass and properly rated glazing beads.

Signage, Labelling & Documentation

Fitting of fire door keep shut or fire door keep locked signs to BS 5499-10, replacement of damaged certification labels, and a completion report for every door remediated.

Got a failed inspection report? Send it over for an itemised repair quote.

Get a Free Quote

Key benefits

Significantly cheaper than full door replacement where the door leaf is structurally sound

Doors brought back to compliant condition and verified against the original inspection findings

All replacement components are fire-rated: Lorient seals, Dorma closers, CE-marked hinges

Minimal disruption — most remedial works are completed on-site in a single visit

Detailed completion report for each door, updating the inspection findings with works carried out

Directly addresses fire risk assessment and fire door inspection report actions

Engineers carry stock of common components to avoid return visits for minor items

Can be combined with our fire door inspection service for a single-visit inspect-and-repair programme

How it works

Report Review

We review the fire door inspection report and scope every remedial action required, door by door. If you do not have a report, we can carry out an inspection first.

Itemised Quotation

We provide a clear, itemised quotation listing every door, every defect, and the specific remedial work proposed — no vague lump sums.

Scheduling

We agree a programme that works around your building operations, whether that means working during school holidays, outside office hours, or floor by floor in occupied buildings.

On-Site Remedial Works

Our fire door engineers carry out all repairs, replacements, and adjustments on-site. We carry stock of Lorient seals, Dorma closers, CE-marked hinges, and signage to minimise return visits.

Completion Report

You receive a door-by-door completion report confirming all works carried out, with updated condition status for each door — ready for your compliance records.

Frequently asked questions

Can defective fire doors be repaired or do they always need replacing?

Many common defects can be remediated without full door replacement. Damaged seals, worn closers, loose hinges, non-compliant gaps, and missing signage can all be addressed through remedial works. However, if the door leaf itself is warped, delaminated, split, or has been modified in a way that compromises its fire rating (such as unapproved glazing cutouts or oversized letterbox openings), the door will need replacing. We will always tell you honestly which doors can be repaired and which cannot.

How quickly can remedial works be completed?

Minor remedials such as seal replacement, closer adjustment, and signage fitting can often be completed same-day during a single visit. For larger programmes involving 50+ doors, we typically schedule the works within 2-4 weeks of quotation approval and complete them over 2-5 days depending on the scope.

What intumescent seals do you use for remedial works?

We use Lorient intumescent and cold smoke seals as standard. The specific seal profile (size and type) is selected to match the door's certification where test evidence is available. For older doors where original certification may not be traceable, we fit seals that meet the performance requirements of the relevant fire resistance standard.

What door closers do you fit?

We fit Dorma overhead door closers as standard — typically the TS 68 for lighter doors or the TS 73V and TS 93 for heavier doors. All are certified to BS EN 1154 and selected for the correct door weight and leaf width. Where an existing closer just needs adjusting rather than replacing, we will adjust it and avoid the unnecessary cost of a new unit.

What gap measurements are considered compliant for fire doors?

The standard tolerance is 3mm (+/-1mm) around the top and sides of the door — meaning gaps should be between 2mm and 4mm. The threshold gap at the bottom depends on the specific doorset certification but is typically no more than 8-10mm. We measure all four edges with calibrated gap gauges and record the measurements in our completion report.

Will you provide updated documentation after remedial works?

Yes. We provide a door-by-door completion report detailing every remedial action carried out on each door, along with an updated condition status. This document directly cross-references the original inspection findings so you can demonstrate that defects have been addressed — essential for fire risk assessors, building insurers, and enforcement authorities.

Can you carry out remedial works from another company's inspection report?

Yes. We regularly carry out remedial works based on inspection reports produced by other fire door inspectors or fire risk assessors. As long as the report identifies the defects clearly, we can scope and quote the remedial works from it. If the report lacks detail, we may need to carry out a brief re-inspection before quoting.

Do you offer ongoing fire door maintenance after remedial works?

Yes. We recommend scheduling follow-up inspections at 6 or 12-month intervals after remedial works to catch new defects early — particularly in high-traffic areas like schools, offices, and residential blocks. We can include fire door maintenance in our monthly compliance packages alongside fire alarm servicing and risk assessments.

No Obligation

Request a Free Site Survey

One of our qualified engineers will visit your site, assess your requirements, and provide a detailed quotation - completely free.

Book a free site survey

Pick the service you need, add details and attach a photo if you can. The more information you send, the more accurate the quote.

What happens after you contact us

We review your enquiry

A member of our team reviews your requirements and gets back to you within 24 hours.

We arrange a site survey

We schedule a convenient time to visit your site and assess your needs in person.

We prepare a quotation

You receive a clear, detailed quote with no hidden costs or obligations.

We schedule the work

Once approved, we agree a start date that works around your operations.

We provide documentation & support

On completion, you receive all certificates, reports, and ongoing support details.

Commercial Clients

Trusted by schools, care homes, warehouses, and construction sites

We work with commercial and public sector clients across Bedfordshire, Hertfordshire, Buckinghamshire, and London.

Schools & Academies

Primary schools, secondary schools, multi-academy trusts, and nurseries

Construction Sites

Active building sites, developments, and temporary site compounds

Warehouses & Industrial

Warehouses, distribution centres, factories, and industrial units

Care Homes & Healthcare

Care homes, nursing facilities, clinics, and GP surgeries

Car Garages & Workshops

MOT centres, car dealerships, vehicle workshops, and body shops

Commercial Offices

Offices, business parks, co-working spaces, and corporate HQs

Public Sector

Local authority buildings, NHS facilities, and community centres

Retail & Hospitality

Shops, restaurants, pubs, hotels, and leisure venues

Areas we cover

Luton Bedford St Albans Watford Stevenage Milton Keynes Hemel Hempstead Hitchin Dunstable Barnet London

Get a fire door remedial works quote

Send us your fire door inspection report and we will provide a clear, itemised quotation for all recommended remedial works — no vague estimates, no hidden costs.

01582 227 123Call us directly

info@dcsecurity.co.ukEmail us anytime

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