Greater London · England
Fire Rated Sealant in Kilburn
We cover Kilburn for intumescent and fire-rated sealant around gaps, frames and service penetrations. Old material cut out, joints cleaned and sealed neatly.
- Open holes round services passing through fire walls
- Gaps flagged on a fire risk assessment
- Open joints along the top of partitions
Signs you need fire rated sealant in Kilburn
Movement in the structure can open gaps too: a seal that cracks or pulls away leaves a path for smoke. Damage from cleaning, knocks and maintenance adds to it.
It’s worth asking for a quote if you see:
- Gaps left after a refit or conversion
- Seals cut through by electricians, plumbers or data installers
- Ordinary sealant used where a fire-rated product was needed
- Gaps where walls meet ceilings or slabs
Schools such as Salusbury Primary School are buildings too, and service openings in fire-resisting walls need checking after any refurbishment.
Before booking anyone
- How the surfaces are prepared before sealing
- Whether they’re fully insured
- Is VAT in the price?
- What happens if they find a problem under the old sealant
Fire rated sealant for homes and businesses in Kilburn
In flats, HMOs, offices and schools, fire stopping is often disturbed by later work. One new cable or pipe can leave a gap that nobody goes back to seal. We seal them with a product tested for that kind of gap. We work on door frames, linear gaps and flats & HMOs, and people most often call us about old fire sealant that has split or come away and linear gaps at the head of walls.
London’s offices, shops, hotels, student accommodation and blocks of flats all have joints to look after, whether that is washroom resealing or fire-rated sealant around service openings. Where a building in Kilburn needs to stay open, work can be planned outside normal hours.
You’re covered for a year from the day we finish. If there’s a problem with it, please ring 0345 464 0079 or drop us an email.
- Location
- Kilburn (NW6, W9, W10)
- Wider area
- Greater London
- Guarantee
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Kilburn: your questions answered
Do you work for hotels and guest houses in Kilburn?
Yes, hotels and guest houses are among the places we work. Rooms can be done a few at a time, so the building stays open.
I let a flat near Queens Park (London) station. Can you help?
Yes, landlords and agents are among the people we work for. You can call 0345 464 0079 or email us with the details for a clear quote.
Do you do fire sealant around door frames?
Yes. We often seal open gaps hidden behind the architrave. Doors, seals and closers need a door specialist.
What do you need from me for a quote?
Where the job is, what the problem is and roughly how big it is. If you can, email a few photos.
Do you have insurance?
Yes. Mr Mastic is fully insured, with over 20 years’ experience in sealant work.
Are you an approved applicator?
Yes. Mr Mastic is an ARBOMaster approved applicator and we are fully insured too.
How long does the job take?
It depends on the size of the job, but most jobs take from a few hours to a few days, depending on the number of gaps and the access. We’ll give you a better idea when we quote.
Will you assess my building’s fire safety?
No. Your fire risk assessor, designer or building control decides that. We apply fire-rated sealant to the requirements they set.
How it works
On the day, we start by going over the job with you, so there are no surprises. We protect the surfaces around the joints before any work starts. The work usually takes from a few hours to a few days, depending on the number of gaps and the access. In Kilburn, as in most of London, parking needs a little planning. A visitor permit or a nearby bay makes the visit run more smoothly.
- We plan the order of work and access, floor by floor or flat by flat.
- We take out any damaged or unsuitable sealant.
- Gaps are cleaned of dust and loose material.
- The fire-rated or intumescent sealant is applied and tooled to the tested detail.
- We record what was done and flag anything that needs a different system.
How to prepare
- Try not to wet indoor joints just before the visit
- Tell us about any water getting in
- Tell us about any previous sealing or DIY attempts
How to get a quote
For fire rated sealant in Kilburn, ring 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
Read more
DIY sealant or a professional job?
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly, so just mention it when you contact us.
Also near Kilburn
Other services in Kilburn
What affects the cost of fire rated sealant
We quote each job individually. These are the things that affect it:
- How many rooms, windows or areas are involved
- Access and height
- Mould in or behind the old joints
- Which sealant suits the joint
No two jobs are quite the same, so each one gets its own quote. Size, access and the product the joint needs all play a part, and we’ll explain the quote if you ask.
What to tell us for a quote
When you contact us, these details help:
- The rough size of the job
- Photos by email, if that is easy
- What the problem is, such as mould, gaps, leaks or cracking
- How we’d reach the joints
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we’ll explain how we’d tackle it. Whenever you’re ready, phone 0345 464 0079 or email us.
Keeping the joints in good condition
To keep the joints looking good and working properly:
- Never patch a fire seal with standard sealant
- Check whether a sealant can be painted before decorating over it
- File the fire-stopping record where your assessor can find it
- Report cracked or damaged seals as soon as you notice them
Leave the sealant to cure fully before painting near it. Some fire-rated sealants can be painted and some can’t, so ask us which we used.
Leave a fire-stopping gap open and smoke can move through the building much more easily. Closing it is normally a straightforward job.
Why deal with it now?
If an assessor has flagged gaps, it makes sense to close them before the next review. Getting them done and written up means you can show the action was taken. In older London homes, water behind a failed joint soaks into brick and timber without much sign, and once it shows in Kilburn, the repair is bigger than a sealant job.
The cost depends on the size of the job, how hard the old material is to remove and access to the work. You’ll have a clear quote before any work starts.
Why us?
- Tidy, careful work
- Old sealant always removed completely
- Fully insured
- An ARBOMaster approved applicator
Take a look at our cost guide and what customers say.
What sealant work can’t fix
Sealant is not the answer to every problem, and we’d rather say so up front. It will not solve:
- Sign-off of the building, which sits with building control or your assessor
- Fire doors that need new seals, closers or hardware
- Walls or floors that weren’t built to resist fire
If you’re not sure, just phone 0345 464 0079 or drop us an email and we will give you a straight answer.
Surfaces we seal
- Door frames
- Plasterboard & masonry
- Service penetrations
- Linear gaps
- Pipe & cable gaps
- Flats & HMOs
Fire rated sealant around Kilburn
Commercial buildings in London often have strict access rules and limited loading, so out-of-hours working can be arranged where needed. Workplaces and the common parts of blocks of flats in England need a fire risk assessment under the Regulatory Reform (Fire Safety) Order 2005, and gaps around services are often picked up there. We apply fire-rated sealant to the assessor’s or designer’s specification and the product’s tested details.
For buildings such as St Anne's and St Andrew's, older buildings that have had new heating or wiring often have service gaps worth checking. As a London address, Kilburn can be tricky for parking: tell us about permits, visitor bays or off-street space when you book.
Kilburn is about 3 miles north-west of City of Westminster, in Greater London. We provide fire rated sealant to homes and businesses in Kilburn and nearby, as part of our work across Greater London. Our area takes in 764 places across Greater London, large and small.
Here we cover the NW6, W9 and W10 postcode area for fire rated sealant. We cover properties on The Lane, Dyne Road and Quex Road. Main roads around Kilburn include the A4003. We also cover the places around Kilburn: Queen's Park (1 mile south), Kensal Rise (1 mile south-west), Brondesbury (1 mile north), Kensal Town (1 mile south) and Kensal Green (1 mile south-west). Further out, we also cover London (5 miles south-east), City of Westminster (3 miles south-east), Marylebone (3 miles south-east), Kensington (3 miles south), St Pancras (4 miles east) and Shoreditch (5 miles east).
Around Kilburn
In Kilburn, that means homes and buildings near The Brondesbury Arms, Maida Vale School and Queen’s Park, among other places. There’s a railway station in Kilburn itself: Queens Park (London) station. A little further out are Paddington General Hospital (1 mile south) and Brent Museum and Archives (1.3 miles north-west). Not far away are Greville Place nature reserve and Primrose Hill.