Why are some fire door quotes so much cheaper than others?

Usually one of three reasons: non-certified doors being passed off as fire doors, smoke seals being skipped (FD30 without the 'S'), or documentation being omitted. Any of those three will fail a London council HMO inspection.

What does a 6-bed HMO fire-door package cost in London 2026?

Typical 2026 range is £3,200-£4,400 for supply and fit of 7 fire doors (6 internal + 1 flat-entrance) with full documentation. Variations come from finish (oak veneer adds £60-£120 per leaf), frame condition, and top-floor access.

How much does it cost to fix a failed fire-door inspection?

Most failed inspections in 2026 are due to seal damage, closer issues or non-rated ironmongery — typically £58-£260 per door to repair vs £290-£560 to replace. Get a survey first to know which route applies.

Is the trade invoice for the doors actually shown?

Yes — Doorz London shows the manufacturer's trade invoice alongside the fitting fee on every quote over £500. You see what we paid for the door at trade. The fitting fee is separate. No hidden mark-up.

Do these prices include the documentation pack?

Yes — manufacturer certificates, installation record signed by K. Sidhu, photographs of each door, ironmongery list, and first quarterly inspection record are all included in every package price.

6 Real Fire Door Job Costs in London (2026 Worked Examples)

Every quote on this page was real, paid by a real client. Numbers include the manufacturer trade-invoice for the doors, the itemised ironmongery, and our fitting fee — that's how every Doorz London quote is structured. Documentation pack and first inspection record are always included. Names of clients have been changed for privacy.

Job 1 — 5-bed HMO, Whitechapel (E1)

Property5-bed HMO conversion

BoroughTower Hamlets

TriggerInitial HMO licensing

Doors6 × FD30S

First-time HMO landlord, new conversion of a 4-bed terrace into 5-bed HMO with an additional kitchen. Doors: 5 bedroom + 1 kitchen, all opening onto the shared escape stair. Original solid timber doors had no certification.

6 × FD30S white-primed leaves @ £218 = £1,308
6 × ironmongery packs (3 hinges, strip+seal, latch, handles, closer) @ £78 = £468
Fitting (6 doors × £140) = £840
Frame repair (one frame needed re-bedding) = £85
Documentation pack + first inspection = included

Total: £2,701 inc. all materials, fitting and documentation

Job 2 — 4-flat block, Brixton (SW2)

Property4-flat purpose-built block

BoroughLambeth

TriggerManaging agent flat-entrance audit

Doors4 × FD30S flat-entrance sets

1970s purpose-built block. Original flat-entrance doors were solid timber with no certification, brass non-rated letter plates and no closers. Managing agent commissioned full upgrade.

4 × FD30S flat-entrance certified door sets (Vicaima) @ £810 = £3,240
Fire-rated letter plates × 4 @ £58 = £232
Fire-rated viewers × 4 @ £42 = £168
Concealed Briton 2003V closers × 4 @ £42 = £168
Fitting (4 sets × £230) = £920
Frame mastic and finishing = £80
Documentation pack = included

Total: £4,808 inc. all materials and certified ironmongery

Job 3 — Failed inspection repair, Camden HMO (NW5)

Property7-bed HMO

BoroughCamden

TriggerFailed quarterly inspection

Doors7 × certified FD30S — repairs only

Doors themselves were certified Door-Stop FD30S but seals had been painted over during a decoration cycle, two closers had been disabled by tenants, and one frame had kick damage. Council notice gave 30 days to remediate.

Strip and seal replacement, all 7 doors (Lorient) = £294
2 × Briton concealed closer replacements @ £85 = £170
Kick-damaged frame stop repair and refinish = £140
Re-inspection and pass certificate = £76
Documentation update = included

Total: £680 — saved an estimated £2,400 vs full replacement

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Job 4 — 11-bed HMO, Croydon (CR0)

Property11-bed HMO licensable property

BoroughCroydon

TriggerHMO licence renewal

Doors6 × FD30S replaced + 5 × repaired

Large HMO mid-cycle through licensing renewal. Survey identified 6 doors that needed replacement (no certification or beyond repair) and 5 that retained certification and just needed refurbishment. Documentation pack was the major output.

6 × FD30S internal leaves @ £218 = £1,308
6 × ironmongery packs @ £78 = £468
Fitting 6 new doors × £140 = £840
5 × refurbishment (seals + closer service + hinges check) × £110 = £550
Compliance documentation bound pack for council = included
First quarterly inspection record = included

Total: £3,166 — re-licensing approved first submission

Job 5 — 24-flat block FD60 upgrade, Lambeth (SE11)

Property24-flat, 6-storey, 18m

BoroughLambeth

TriggerPost-Grenfell FD30 → FD60 upgrade

Doors24 × FD60 flat-entrance sets

Building Safety Act scope — 6-storey block at 18m needed FD60 upgrade on all flat-entrance doors. Tenants in residence; we worked 2 flats per day over 12 working days. Documentation packaged for the building's safety case file.

24 × FD60 certified door sets @ £1,180 = £28,320
24 × fire-rated letter plates @ £64 = £1,536
24 × fire-rated viewers @ £58 = £1,392
24 × heavy-duty Briton 2300 closers @ £108 = £2,592
Fitting (24 × £240) = £5,760
Frame structural fixings and intumescent mastic = £820
Safety-case-file documentation pack = £640
Tenant coordination and access management = included

Total: £41,060 — 24 doors over 12 days, no tenant displacement

Job 6 — Pre-purchase survey + remediation, Hackney (E8)

Property4-bed HMO conversion

BoroughHackney

TriggerBuyer's pre-purchase due diligence

Doors5 surveyed + minor repairs

Buyer asked Doorz London to survey a 4-bed HMO in Dalston before exchange. Vendor's documentation was incomplete and the buyer's solicitor flagged it.

Pre-purchase fire-door survey + written report = £180
Identified: 2 minor seal repairs needed = £140 indicative
Confirmed: doors themselves are certified FD30S, no replacement needed
Buyer negotiated £450 off the agreed price using the report

Net cost to buyer: £180 — value extracted via negotiation: £270 (net of cost)

What these six jobs show

HMO packages cluster between £2,700 and £4,400 for 5-7 bed properties with full FD30S install and documentation.
Failed inspections are repairable in the vast majority of cases — typically a fraction of the replacement cost.
FD60 work is expensive but predictable — about 2× the per-door cost of FD30S, plus heavier ironmongery and slower fits.
Pre-purchase surveys pay for themselves — independent reports give buyers real negotiating power.
The trade-invoice transparency is real — every quote separates the door cost from the fitting fee.

How to use this list

If you've received a fire-door quote in 2026 and want to know whether it's reasonable, compare it line-by-line against the closest of these six worked examples. The headline you're looking for:

Is the trade invoice shown?
Are the ironmongery components itemised?
Is the documentation pack included?
Are the door manufacturer and rating named?

If any of those four is missing, the comparison isn't apples-to-apples. WhatsApp us the competing quote and we'll annotate where the differences sit.