Intumescent strips and smoke seals in Crawley: what's involved
Looking for intumescent strips and smoke seals in Crawley? We supply and fit certified fire doors and components across Crawley and the wider West Sussex area, working from a free survey and a fixed written quote.
Buildings in and around Crawley range from GP surgeries to care homes and industrial units. Whatever the building, the standard is the same: certified products, correct gaps, seals and closers, and a frame sealed to the wall.
We check that each door in your Crawley building closes and latches against its new seals before signing it off. Painted and missing seals are among the most common fire door defects nationally; in Crawley we replace them with the type and size the certification specifies.
Getting the specification right
The door's certification states the type, size and position of strips and seals: in the frame or the leaf edge, single or double, and whether a combined intumescent and smoke seal is used. Replacements must match. Swapping in a generic strip from a hardware shop can undermine the door's performance.
On a typical job that means:
- Removal of damaged or painted seals
- Intumescent pads to hinges and locks
- Check of gaps and closing after fitting
- Identification of the specified seals
Fire door law for Crawley properties
England's framework applies in Crawley. Approved Document B guides the fire performance of new and replacement doors under the Building Regulations 2010. Day-to-day duties sit with the responsible person under the Fire Safety Order 2005, and for multi-occupied residential buildings, the Fire Safety (England) Regulations 2022 add duties such as giving residents information about fire doors.
For blocks over 11 metres in Crawley, those regulations require communal fire door checks at least every three months and best-endeavours flat entrance door checks each year. In higher-risk buildings, building work is overseen by the Building Safety Regulator, so we check whether approval is needed before starting.
Buildings and duty holders in Crawley
You are most likely to need intumescent strips and smoke seals if you look after schools, HMOs or offices. Whatever the building in Crawley, we survey each opening and tell you which doors need work and which do not.
What happens after you enquire
- 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
Prices for intumescent strips and smoke seals in Crawley
As a guide, budget £45–£110 per door to supply and fit strips and seals, ex VAT for intumescent strips and smoke seals. The figure for your Crawley building depends on the number of doors, the rating, the condition of the frames, finishes, hardware and access. We confirm a fixed price after the free survey.
Around Crawley
Beyond Crawley itself we also cover nearby towns such as Horley (7.0 km), Horsham and East Grinstead. The service, pricing and evidence are the same wherever you are.
Questions
Is Crawley within your coverage area?
It is. We cover Crawley in West Sussex and neighbouring towns such as Horley. There is no charge for the survey.
What happens on a survey in Crawley?
We look at every door in scope: the leaf, frame, gaps, seals, hinges, closer, glazing and how the frame is fixed. You then get a written quote that prices each door separately.
Can smoke seals be painted?
No. Paint stops brush and blade seals working. If seals have been painted, they should be replaced.
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.

