What intumescent strips and smoke seals in St Albans should include
When you book intumescent strips and smoke seals in St Albans, the aim is simple: doors that close, latch and seal as tested, with records that prove it.
St Albans has a broad mix of buildings, including family homes after loft conversions, low-rise blocks of flats and HMOs, and the same fire door principles apply to all of them.
Seal replacement in St Albans can be combined with any other remedials on the same inspection report. We check that each door in your St Albans building closes and latches against its new seals before signing it off.
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.
Each installation includes:
- Intumescent pads to hinges and locks
- Check of gaps and closing after fitting
- Identification of the specified seals
- Brush or blade smoke seals
Rules and responsibilities in St Albans
England's framework applies in St Albans. 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 St Albans, 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.
Where intumescent strips and smoke seals fit in St Albans
From care homes to HMOs, the requirement for intumescent strips and smoke seals in St Albans 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.
How a St Albans job runs
- 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 St Albans?
Budget around £45–£110 per door to supply and fit strips and seals, ex VAT for intumescent strips and smoke seals. Our guide prices are the same in St Albans as elsewhere; what changes the cost is the doors themselves. Use our guide-price tool for a quick estimate.
Around St Albans
Neighbouring towns such as Harpenden, Hatfield, Hemel Hempstead and North Watford are covered too, so clients with several buildings can use one installer and one evidence format.
Questions
Is St Albans within your coverage area?
It is. We cover St Albans in Hertfordshire and neighbouring towns such as Harpenden. There is no charge for the survey.
What happens on a survey in St Albans?
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.
Do all fire doors need smoke seals?
Only where the door is specified for smoke control, such as FD30S doors. Many doors on escape routes and flat entrances are specified this way.

