When Replacement Is The Right Call
Replacement usually becomes the sensible route when the leaf is unsuitable, the frame cannot support a compliant assembly, or remedial work no longer makes commercial sense.
Where Replacement Work Comes From
Typical enquiries come from inspections, landlord upgrades, flat entrance-door issues, HMO licensing comments and damaged or tired openings.
How We Quote Replacement Work
Photos of the opening and any notes from an inspector or manager are the fastest way to move toward a useful price.
When fire door replacement is the right call (and when it isn't)
Fire door replacement is the right route when the leaf has failed an inspection, the certification can't be evidenced, the manufacturer's seals have been painted over multiple times, or the property has changed use and the rating no longer matches the requirement. It's the wrong route when the issue is purely cosmetic, when the manufacturer plug confirms certification and the issue is hardware-related, or when targeted fire door repairs would close the compliance gap for a quarter of the cost.
The honest answer almost always sits inside the fire door survey report. If you're staring at a council notice or a managing-agent demand letter, send us the document and photos of the doors — we'll come back within an hour with a realistic call on repair-vs-replace before any work is committed.
What a Doorz London fire door replacement actually includes
Every fire door replacement we deliver in London arrives as a complete assembly, fitted by master carpenter K. Sidhu and team to the current UK code of practice for fire doors. That means the door, frame integrity check, certified intumescent strips, cold smoke seals, three CE/UKCA fire-rated hinges, a fire-rated closer where the escape route requires it, fire-rated lock case and strike plate, and the surround made good for a clean paint-ready finish.
Where the original frame is sound and the rating documentation supports it, we keep the existing frame and replace only the leaf — usually a saving of £180–£260 per opening. Where the frame is rotten, off-square, or never had fire-rated stops, we replace the full set so the certification holds end-to-end.
Replacement vs full door-set — picking the right route
A leaf-only replacement is fastest and cheapest, but it carries a condition: the new leaf has to be a compatible match for the existing certified frame. We confirm this before quoting. A full door set is heavier, slower to fit, and more expensive — but it's the only route that gives you one continuous certification trail from manufacturer through to installation record. For flat-entrance doors and HMO escape routes, we strongly recommend the full set unless the survey clearly supports a leaf swap.
The replacement process — day-by-day
- Photos and postcode → response within the hour with a price band and the likely route (leaf swap vs full set).
- Free site survey for blocks, HMOs and any complex assembly. K. Sidhu measures, photographs and checks frame condition.
- Fixed-price quote in writing. Trade invoice for the door shown separately from the fitting fee — no hidden mark-up.
- Doors ordered. Lead time 7–10 working days for standard FD30S; 10–14 days for bespoke sizes or specific finishes.
- Installation day. Floors and adjacent paintwork protected. Existing door removed, opening checked, new door hung and fully ironmongered.
- Sign-off and certificate. Manufacturer certificate, installation record signed by the fitter, photographs of each door delivered within 48 hours.
Materials and ironmongery we install as standard
- Door leaf: BWF-Certifire or BM TRADA tested FD30S / FD60. Finishes available in white primer, oak veneer, walnut veneer or paint-grade for site finish.
- Intumescent strips: Pyroplex or Lorient certified, single or combined strip-and-seal.
- Smoke seals: Lorient cold smoke brush seals — required on every FD30S for HMO and escape-route use.
- Hinges: three CE/UKCA-marked Grade 13 steel ball-bearing hinges, 105 × 75 mm or matched to door weight.
- Closer: Briton 2003V (concealed) or Briton 121CE (surface) depending on spec.
- Lock/latch: CE-marked Union 2200 series or equivalent fire-rated tubular latch.
- Frame mastic: intumescent fire mastic to seal frame-to-wall junction where required.
What real London fire-door replacement costs in 2026
Honest, no-mark-up pricing — trade invoice shown alongside the fitting fee:
- FD30S leaf-only replacement (existing certified frame retained): £290–£420 supply and fit.
- FD30S full door-set (door + frame + ironmongery, fitted, documented): £490–£680.
- FD30S flat-entrance door set with fire-rated letter plate, viewer and closer: £1,100–£1,650.
- FD60 full door-set for high-rise residential or commercial: £720–£980.
- Six-bed HMO package (6 × FD30S internal + 1 flat-entrance + full documentation): £3,200–£4,400.
For a deeper breakdown see fire door cost London with itemised pricing by spec and finish.
Aftercare and the new quarterly inspection requirement
Every fire door we install in London is handed over with a written aftercare note. The big change for 2025/26 — London HMO landlords are now expected to inspect fire doors on escape routes every three months, with the inspection logged in writing by a competent person. Our installation pack includes the inspection log template plus the first inspection record signed by K. Sidhu, so you start the cycle on day one. See fire door inspection for ongoing inspections, or fire door maintenance for the wider upkeep.
Quarterly inspection checklist (handed over with every replacement)
- Door-to-frame gap: 2–4 mm at sides and head, max 8 mm at threshold (or per manufacturer).
- Intumescent strips intact, no paint, no peeling.
- Smoke seals intact and contacting frame.
- Self-closer returns door to fully latched position from any open angle.
- Three hinges secured, no missing screws, no cracks.
- Lock/latch engages without sticking.
- No through-holes drilled without fire-rated kits.
- Signage in place where the building's fire strategy requires it.
Compliance, certification and what councils accept
Every Doorz London installation is fitted to the current UK code of practice, and our work has been accepted by every London council we've ever submitted documentation to. For HMO licensing renewals, you'll receive: the manufacturer certificate, the signed installation record, photographs of each fitted door, an ironmongery list, and (on request) a remedial-works report if you've inherited a property mid-cycle.
Six-flat block in Tower Hamlets — fire-door replacement to FD30S
A managing agent appointed Doorz London after a council fire-safety audit flagged non-certified flat-entrance doors on a six-flat block in Bethnal Green. Existing doors were solid timber but with no certification, no smoke seals and the wrong closers. We replaced all six with FD30S certified door sets including letter plates, viewers and closers rated to the assembly. Documentation pack delivered to the managing agent within 48 hours of completion.
All 32 London boroughs — door-fitter routes for fire door replacement
Doorz London services every London borough for fire door replacement. Borough-specific landing pages are listed below — for any borough not shown, we still cover it from our central London routes.
What our London clients say
"Finally a door company that explains everything. Brought samples, showed me exactly what FD30S means for my HMO. Handled the whole job. Cheaper than my builder's quote too."
"Left the showroom completely confused. Doorz came to my flat, explained every option in plain English and fitted 6 doors in one day. Handles are proper quality."
"As a property manager I need reliable trades. Doorz fitted fire doors across three of our properties, provided all the certs and the council inspector was happy."
Useful next pages
Get a Fire Door Replacement Quote
Replacement intent is some of the strongest buyer intent on the site.
The information on this page is provided as general guidance only. Building regulations, fire safety duties and installation requirements vary by property. Always confirm the exact requirement for your building before ordering.