Greater London · England
Fire-rated sealant in Belsize Park, Greater London
Fire rated sealant across Belsize Park and nearby, with every bit of old sealant taken out first and a 12-month guarantee.
- Cracked or shrunken fire-rated sealant
- Damaged fire sealant left by other trades
- Linear gaps at the head of walls
Fire rated sealant in Belsize Park, done properly
Landlords, managing agents and facilities teams use us for the sealant items on a fire risk assessment. Send us the list or the survey and we’ll quote for the fire-rated sealant work on it. We’re often asked to deal with gaps flagged on a fire risk assessment and old fire sealant that has split or come away, on door frames, pipe & cable gaps and plasterboard & masonry.
Commercial work in London comes with its own logistics: loading restrictions, building rules and tight access. Timings and access are agreed with the building before work starts in Belsize Park.
Each job carries a 12-month guarantee, large or small.
- Where
- Belsize Park (NW3, NW5, NW1)
- Region
- Greater London
- Cover
- One year on every job
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
What affects the quote in Belsize Park
Your quote is based on your job. We look at:
- The number of rooms or windows
- Any mould that needs treating
- How much old sealant there is and how hard it is to remove
- Whether the work is at height
Every job is a little different, so each one gets its own quote. Size, access and the product the joint needs all make a difference, and we will explain the quote if you ask.
What to tell us for a quote
Before you ask for a quote, have a think about:
- Access, such as stairs, a lift or height
- Photos by email, if that is easy
- The address or postcode of the job
- What’s wrong with the joints now
If you are in Belsize Park and need fire rated sealant, call 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and you’ll get a clear quote before we start.
What fire rated sealant looks like in Belsize Park
There are hotels and other places to stay in and around Belsize Park. For hotels, a room-by-room programme keeps most rooms in use while the work goes on. Workplaces and the common parts of blocks of flats in England need a fire risk assessment under the Regulatory Reform (Fire Safety) Order 2005, which is often where open fire-stopping gaps are first noticed. We apply fire-rated sealant to the assessor’s or designer’s specification and the product’s tested details.
Schools such as Fine Arts College are buildings too, and gaps opened by contractors for new cabling are a common finding in schools and offices. Letting a property close to South Hampstead station? Then any gap left by new services in shared walls should be closed with a fire-rated product.
Belsize Park is about 1 mile south-east of Hampstead, in Greater London. Our applicators cover fire rated sealant for householders, landlords and businesses in Belsize Park, as part of our work across Greater London. Our Greater London coverage runs to 764 places, and Belsize Park is one of them.
All of NW3, NW5 and NW1 is within our area for fire rated sealant, from the main roads to the quietest streets. That includes homes and businesses on Eton Road, Lawn Road and Ornan Road and the roads around them. Nearby, we also carry out fire rated sealant in Haverstock (1 mile north), Primrose Hill (1 mile south), South Hampstead (1 mile west), Swiss Cottage (1 mile west) and Chalk Farm (1 mile east). Further out, we also cover London (4 miles south-east), Kensington (4 miles south-west), Shoreditch (4 miles east), Walthamstow (7 miles north-east), Hoxton (3 miles east) and Whitechapel (4 miles south-east).
What’s near Belsize Park
We work in homes and buildings around The Washington pub, Primrose Hill and St. Mary's Town and Country School. Also close by are Cecil Sharp House (0.8 miles south-east) and St Paul's Church of England Primary School (less than half a mile south). The nearest railway station is South Hampstead station, roughly 0.7 miles west. A little further out are Wellington Hospital (0.9 miles south-west) and O2 Centre (0.8 miles west). Open spaces near Belsize Park include Adelaide Nature Reserve and The Long Water.
What we do, step by step
On the day, there’s very little for you to do. Show us the job and we’ll take it from there. The work itself takes a few hours for a handful of gaps, and longer for a whole building. In Belsize Park, as in most of London, parking needs a little planning. It helps if you can point us to a visitor permit or a bay close to the door.
- We begin by agreeing the list of gaps from your assessor’s or designer’s requirements.
- Each gap is measured and its substrate and service noted.
- Any non-fire-rated filler is removed and the gap cleaned.
- We fit backing where needed and apply the fire-rated sealant to depth.
- Every location is recorded with the product used.
How to prepare
- Mention any parking rules near the property
- Keep children and pets away from the work area
- For indoor joints, keep the area dry beforehand if you can
Get a quote
For a quote, ring 0345 464 0079 or send us an email with the location and a short description of the problem. You will have a clear quote before any work starts.
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What sealant work cannot fix
We will always be straight with you, so here’s what sealant cannot fix:
- A wall that is not a fire-resisting element to begin with
- Large holes that need a different fire-stopping system
- Fire doors that need new seals, closers or hardware
If you’re not sure, just phone 0345 464 0079 or email us and we’ll give you a straight answer.
Where we work in Belsize Park
- Pipe & cable gaps
- Plasterboard & masonry
- Door frames
- Linear gaps
- Flats & HMOs
- Service penetrations
Different surfaces, different methods
Service penetrations
Service penetrations are where new gaps often appear. Old or unsuitable filler comes out before the right sealant goes in with backing where the detail needs it.
Plasterboard walls
Many fire-resisting walls in flats, offices and conversions are plasterboard. The sealant has to be one tested in plasterboard for the gap we are sealing.
Should I try it myself first?
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.
If you are set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it does not work out, we can still put it right.
What happens if it’s left?
Doing it once, properly, beats doing it twice. Work that doesn’t follow the tested detail may have to come out again when the building is next checked. In a London flat, a failed joint rarely stays your problem alone: water can reach the neighbours below, and gaps in fire-rated joints affect the whole building.
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether the work is at height. Your quote takes all of that into account.
Why us?
- ARBOMaster approved applicator
- Rated 4.9 stars on Google
- Anti-fungal silicone where joints get wet
- Trusted Arbo and Everbuild sealants
Read our cost guide and what customers say.
Nearby places to Belsize Park
Other services in Belsize Park
Common problems we fix in Belsize Park
Movement in the structure can open gaps too: a seal that cracks or pulls away leaves a path for smoke. Knocks, maintenance and building work damage it further.
If you can see any of these, it’s time to have the joints looked at:
- Cracked or shrunken fire-rated sealant
- Standard silicone or caulk in a fire-stopping gap
- Joints picked up in a fire-stopping survey
- Fire stopping disturbed by later work
As a London address, Belsize Park can be tricky for parking: tell us about permits, visitor bays or off-street space when you book.
Comparing quotes
- Whether the sealant suits the joint
- What happens if they find a problem under the old sealant
- Which colour the sealant will be
- Whether they’re fully insured
Belsize Park questions
Do you work for hotels and guest houses in Belsize Park?
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.
Do you work for landlords with property near South Hampstead station?
Yes. We work for letting agents and landlords as well as homeowners, and several properties can be quoted together. Just call 0345 464 0079 or email us with the address and what needs doing, and we will give you a clear price.
How much does fire rated sealant cost in Belsize Park?
Every job is different, so each one gets its own quote. To get one, phone 0345 464 0079 or drop us an email with a short description of the job.
Will there be a smell?
It depends on the product. Some smell for a while, some hardly at all.
Will it make a mess?
No. The area is protected while we work and cleaned up afterwards.
Can you tell me which gaps need fire stopping?
No. That’s for a fire risk assessor, designer or building control. Our job is applying the sealant to their specification.
Is the work guaranteed?
Yes. All our work carries a 12-month guarantee.
What do you put in the joint?
It depends on the joint: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.