Getting intumescent strips and smoke seals right in City of Westminster
Looking for intumescent strips and smoke seals in City of Westminster? We supply and fit certified fire doors and components across City of Westminster and the wider Greater London area, working from a free survey and a fixed written quote.
Fire doors in City of Westminster protect escape routes in mixed-use office buildings, schools and clinics alike. We adapt the programme to the building and its occupants, never the standard of the installation.
Painted and missing seals are among the most common fire door defects nationally; in City of Westminster we replace them with the type and size the certification specifies. Seal replacement in City of Westminster can be combined with any other remedials on the same inspection report.
Pads, linings and hidden protection
Fire doors also rely on intumescent material you cannot see: pads behind hinges, linings around lock bodies and glazing seals. Where these are missing or damaged, we fit the correct items as part of the work.
Each installation includes:
- Intumescent strips in frame or leaf edge
- Identification of the specified seals
- Brush or blade smoke seals
- Intumescent pads to hinges and locks
Which fire door rules apply in City of Westminster?
Fire doors in City of Westminster fall under English rules. New and replacement doors are covered by the Building Regulations 2010 and Approved Document B. In workplaces and the common parts of blocks, the Regulatory Reform (Fire Safety) Order 2005, as clarified by the Fire Safety Act 2021, puts the duty on the responsible person to keep fire doors suitable and maintained. In London, the London Fire Brigade is the enforcing authority for fire safety law.
For residential buildings in City of Westminster above 11 metres, regulation 10 of the Fire Safety (England) Regulations 2022 adds checks: communal fire doors at least every three months and best-endeavours checks of flat entrance doors at least every twelve months. Higher-risk buildings of at least 18 metres or seven storeys also come under the Building Safety Act 2022, where works may need approval from the Building Safety Regulator.
Buildings and duty holders in City of Westminster
From HMOs to blocks of flats, the requirement for intumescent strips and smoke seals in City of Westminster comes from the fire strategy or risk assessment for the building. We work from that document, or help you interpret your inspection report, before quoting.
From enquiry to handover in City of Westminster
- Identify door certification and seal specification
- Remove failed seals and clean the grooves
- Fit new strips and seals to the specified positions
- Fit missing pads and lock linings
- Check the door closes and latches against the new seals
- Record the products fitted
What does intumescent strips and smoke seals cost in City of Westminster?
If you need a budget figure first, the guide for intumescent strips and smoke seals is £45–£110 per door to supply and fit strips and seals, ex VAT. We firm that up after a survey, pricing each door separately so you can see where the money goes.
Covering City of Westminster and nearby
Neighbouring towns such as Pimlico, London, Chelsea and Battersea are covered too, so clients with several buildings can use one installer and one evidence format.
Common questions
Do you work in City of Westminster?
Yes, we take on intumescent strips and smoke seals in City of Westminster and the surrounding area, including Pimlico and London. Send your postcode and a few details and we'll come back with survey dates.
Can you work from an existing inspection report for my City of Westminster building?
Yes. Send it over and we can often price straight from it, then confirm on site. We report back against the same door references so you can close actions off.
Can I just add intumescent strips to an ordinary door?
No. Strips do not turn an ordinary door into a fire door. They only work as part of a door that was tested and certified with them.
How long do seals last?
It depends on use and care. Seals on busy doors wear faster. Regular inspections will show when they need replacing.

