Intumescent strips and smoke seals in Merthyr Tydfil, done to the evidence
When you book intumescent strips and smoke seals in Merthyr Tydfil, the aim is simple: doors that close, latch and seal as tested, with records that prove it.
Merthyr Tydfil has a broad mix of buildings, including light industrial buildings, schools and family homes after loft conversions, and the same fire door principles apply to all of them.
We check that each door in your Merthyr Tydfil 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 Merthyr Tydfil we replace them with the type and size the certification specifies.
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.
As standard, the work covers:
- Identification of the specified seals
- Intumescent strips in frame or leaf edge
- Check of gaps and closing after fitting
- Brush or blade smoke seals
Which fire door rules apply in Merthyr Tydfil?
Fire door work in Merthyr Tydfil follows Welsh building regulations and the Welsh Approved Document B. The Fire Safety Order 2005 covers workplaces and the shared parts of residential buildings here too, placing the duty on the responsible person.
The English regulation 10 checking regime does not extend to Merthyr Tydfil, so how often doors are checked comes from the fire risk assessment. We hand over evidence that fits whatever regime your assessor sets.
Where intumescent strips and smoke seals fit in Merthyr Tydfil
The need for intumescent strips and smoke seals usually arises in blocks of flats or offices, and sometimes HMOs. Each has its own pressures, such as residents at home or a building that must stay open, so we plan the sequence of work in Merthyr Tydfil to keep escape routes protected throughout.
How a Merthyr Tydfil 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
Guide prices in Merthyr Tydfil
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 Merthyr Tydfil 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.
Covering Merthyr Tydfil and nearby
Neighbouring towns such as Aberdare, Rhondda, Ebbw Vale and Tonypandy are covered too, so clients with several buildings can use one installer and one evidence format.
Questions from Merthyr Tydfil
Do you cover CF47 and nearby postcodes?
Yes. We cover Merthyr Tydfil including CF47, and nearby towns such as Aberdare and Rhondda. The survey and written quote are free.
What happens on a survey in Merthyr Tydfil?
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.

