Greater London · England
Fire-rated sealant in West Brompton, Greater London
Fire rated sealant in West Brompton from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Ordinary sealant used where a fire-rated product was needed
- Holes left by a change of layout
- Cracked or shrunken fire-rated sealant
Fire rated sealant in West Brompton, done properly
Bigger jobs can be worked through in stages, flat by flat or floor by floor, noting the locations and products as we go. That record is useful for your files and for whoever looks at the building next. Typical jobs include linear gaps at the head of walls and open holes round services passing through fire walls, across flats & HMOs, linear gaps and service penetrations.
In London’s blocks of flats, service risers and common parts have pipes and cables passing through walls and floors. In West Brompton, building managers may need both fire-rated sealant around those openings and new sealant in shared washrooms.
All our work comes with our one-year guarantee, wherever you are in Greater London.
- Location
- West Brompton (SW6, SW10, SW5)
- Region
- Greater London
- Cover
- 12 months on all our work
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026

Fire rated sealant in West Brompton: local notes
Commercial buildings in London often have strict access rules and limited loading, so out-of-hours working can be arranged where needed. West Brompton has hotels and guest accommodation in and around it. For hotels, a room-by-room programme keeps most rooms in use while the work goes on.
West Brompton is in London, so parking needs planning: let us know about parking bays, permits or a driveway. Letting a property close to West Brompton station? Then any gap left by new services in shared walls should be closed with a fire-rated product.
West Brompton is about 1 mile south of Kensington, in Greater London. West Brompton gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a one-year guarantee. We cover 764 towns and villages across Greater London, large and small.
We work across the SW6, SW10 and SW5 postcode area for fire rated sealant and the streets around it. You will find streets such as Sun Road, Star Road and Farm Lane. Main roads around West Brompton include the A3218 and A3220. Neighbouring places we cover for fire rated sealant include Earl's Court (1 mile north), Walham Green (1 mile south), World's End (1 mile south-east), Little Chelsea (1 mile east) and South Kensington (1 mile north-east). We also work in nearby towns such as London (4 miles east), City of Westminster (3 miles north-east), Marylebone (3 miles north-east), St Pancras (4 miles north-east), Shoreditch (6 miles north-east) and Walthamstow (10 miles north-east).
Local landmarks in West Brompton
Typical jobs here are in homes near The London Oratory School, The Fulham Boys School and Gwendwr Garden. Also close by are Natural History Museum Library and Archives (1.1 miles north-east) and Coleherne public house (under half a mile north-east). West Brompton has its own railway station: West Brompton station. Nearby you will also find Kensington Arcade (1 mile north) and Chelsea Stadium Tour And Museum (under half a mile south-east). For a walk, there’s The Long Water and WWT London Wetland Centre.
What happens on the day
Good joint work is mostly preparation, so that’s where we spend the time. Joints are cleaned back and dried before anything new goes in. In total, it normally takes a few hours for a handful of gaps, and longer for a whole building. Many London jobs are in flats, so we come ready for stairs, narrow hallways and shared entrances. Mention any building rules, key holders or managing agents when you book.
- Access to each area is agreed so the work can run in order.
- Old, damaged or unsuitable sealant is removed.
- 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.
Getting ready for the visit
- Keep children and pets away from the work area
- Tell us about access, such as stairs, a lift or high-level joints
- Where the joints are inside, avoid wetting them before we arrive
Get a quote
Getting a quote is simple: let us know the job and the location, and roughly how big it is. A few pictures by email make the job easier to understand, and we will come back to you with a quote.
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Nearby places to West Brompton
Also in West Brompton
Landlords, agents and businesses in West Brompton
We also work for property managers and facilities teams in West Brompton and across Greater London. We can quote a run of properties together, and we are fully insured for the work.
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we will quote.
West Brompton: your questions answered
Do you work for landlords with property near West Brompton station?
Yes. We work for landlords and agents as well as homeowners, and several properties can be quoted together. Just phone 0345 464 0079 or send us an email with the address and what needs doing, and we will send you a clear quote.
Do you work for hotels and guest houses in West Brompton?
Yes, we work for hotels as well as homes and businesses. A room-by-room programme keeps most rooms in use while the work goes on.
Can you tell me which gaps need fire stopping?
No, assessment is not something we do. Once you have a specification or action list from your assessor or designer, we can quote for the fire-rated sealant items.
What fire rating will the seal have?
That isn’t something we state or certify. Your specification sets the requirement, and we apply a product tested for it.
Where is Mr Mastic based?
Mr Mastic is based in Crawley. We cover West Brompton and the rest of Greater London.
Do you provide details of the products used?
Yes. You get a list of where we worked and what we used for your files.
Will you leave a mess?
Very little: the area around the joints is protected first, and we clear up the old sealant and our materials before we leave.
What’s the difference between intumescent and fire-rated sealant?
Intumescent means it swells when heated to help seal the gap. Intumescent sealants are one kind of fire-rated sealant; the right one depends on the gap and what passes through it.
What affects the quote in West Brompton
We do not publish a price list, because no two jobs are the same. What we look at:
- Access and height
- The size of the job
- Any mould that needs treating
- The old material and how stubborn it is
Doing several joints on one visit normally makes better use of the time than several visits. You will get one clear quote for the whole job.
Asking for a quote
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- Roughly how big the job is
- Any access issues, like height or stairs
- The problem you’ve noticed
- A few photos by email, if you can
To get a quote, call 0345 464 0079 or send us an email with the location and a short description of the problem. We’ll give you a clear price before any work starts.
DIY sealant or a professional job?
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is.
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.
Different surfaces, different methods
Plasterboard walls
Plasterboard partitions are common in flats, offices and conversions. We use a product tested in that kind of wall for the gap we’re sealing.
Flats and HMOs
Working in occupied flats needs some planning. Access to flats and common areas is agreed in advance so residents know what to expect.
When it is not the sealant
To be straight with you, some problems need a different trade:
- Fire doors that need new seals, closers or hardware
- Big openings where sealant alone isn’t the tested solution
- Issuing a fire rating or certificate for a building
If you are not sure, just call 0345 464 0079 or email us and we will give you a straight answer.
Where we work in West Brompton
- Linear gaps
- Flats & HMOs
- Pipe & cable gaps
- Service penetrations
- Door frames
- Plasterboard & masonry
When to call us in West Brompton
Lots of unsealed gaps appear long after the building was completed. Electricians, plumbers and data installers drill through walls and ceilings and the hole they leave does not always get resealed.
Any of these means the joints need attention:
- Old fire sealant that has split or come away
- Linear gaps at the head of walls
- Standard silicone or caulk in a fire-stopping gap
- Fire stopping disturbed by later work
Schools such as St Cuthbert with St Matthias CofE Primary School are buildings too, and gaps opened by contractors for new cabling are a common finding in schools and offices.
Comparing quotes
- The length of the guarantee
- What the cure time is
- How the joint is cleaned and prepared
- Whether all the old sealant comes out first
