Greater London · England
Fire-rated sealant in City of Westminster, Greater London
Fire rated sealant for City of Westminster and the surrounding area: careful preparation, the right product and tidy work. Ask us for a quick quote.
- Gaps filled with a product that is not fire-rated
- Gaps around pipes and cables through fire-resisting walls
- Gaps left after a refit or conversion
Why it’s worth doing now in City of Westminster
Squirting in whichever sealant is nearest doesn’t make a fire seal. Fire-rated products are tested in set gap sizes, depths and substrates, which is why we match the product and the method to each gap. 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.
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed. Ask us for a quote and we will go through it with you.
Why City of Westminster customers choose us
- One-year guarantee on every job
- 20+ years of sealant experience
- 4.9 on Google from 180+ five-star reviews
- Anti-fungal sanitary silicone in wet areas
See our cost guide or our reviews.
Fire rated sealant for homes and businesses in City of Westminster
Filling a fire-stopping gap with standard silicone or caulk doesn’t make it fire-rated. We cut out the wrong material and reseal with a fire-rated product tested for that kind of gap. We’re often asked to deal with holes left by a change of layout and open holes round services passing through fire walls, on linear gaps, plasterboard & masonry and pipe & cable gaps.
London blocks of flats carry pipes and cables through walls and floors in their common parts and service risers. For managing agents and building owners in City of Westminster, that can mean fire-rated sealant around service openings as well as resealing in shared washrooms and kitchens.
Every job is covered by a 12-month guarantee.
- Location
- City of Westminster (W2, NW8, W9, SW1V)
- Wider area
- Greater London
- Guarantee
- One year on every job
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
What happens on the day
On the day, we start by going over the job with you. Surfaces next to the work are protected before work begins. The work generally takes anything from a few hours to several days, depending on how many gaps there are. In City of Westminster, as in most of London, parking needs a little planning. A visitor permit or a nearby bay makes the visit run more smoothly.
- We start with the survey or action list, checking the size and surfaces of every gap.
- Old or unsuitable sealant is cut out and the gap cleaned.
- Backing or fill is fitted where the product’s tested detail calls for it.
- Fire-rated or intumescent sealant is applied to the right depth and tooled.
- Locations and products are noted so you have them on file.
How to prepare
- Let us know about stairs, lifts or work at height
- Let us know if you’ve seen damp or leaks
- For business premises, tell us about site rules or sign-in
How to get a quote
It all starts with a short chat. Describe the problem, the location and the size of the job, and we’ll talk you through what we’d do. When it suits you, phone 0345 464 0079 or send us an email.
Related advice
Should I try it myself first?
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
What we’re called out for in City of Westminster
Sometimes the wrong product was used from the start: general-purpose foam, everyday silicone or caulk where a fire-rated seal was needed. It may look fine, but it isn’t a fire-rated seal.
These are the problems we are asked about most:
- Fire stopping disturbed by later work
- Holes left by a change of layout
- Ordinary sealant used where a fire-rated product was needed
- Old fire sealant that has split or come away
City of Westminster is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book.
Before booking anyone
- How hidden problems are handled
- What product goes in the joint
- How the joint is cleaned and prepared
- How long the guarantee is
When something else is needed
Honest advice matters more to us than a booking, so here’s what sealant can’t fix:
- Issuing a fire rating or certificate for a building
- Problems with the door itself rather than the gap around the frame
- A wall that is not a fire-resisting element to begin with
If in doubt, call 0345 464 0079 or send us an email and we will say what we think before booking.
Where we work in City of Westminster
- Door frames
- Service penetrations
- Plasterboard & masonry
- Linear gaps
- Flats & HMOs
- Pipe & cable gaps
Surface by surface
Service penetrations
Different services need different details: metal pipes, cables and plastic pipes aren’t treated the same. Each one is sealed to the product’s tested detail, and tell you if sealant alone is not the right fix.
Door frames
We deal with the gap around the frame, not the door. Doors, seals and closers are for a door specialist, and we will say if we spot a problem with them.
Commercial buildings in City of Westminster
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. City of Westminster has hotels and guest accommodation in and around it. Hotel work can be planned room by room, with out-of-hours working where needed.
Rented homes near Bond Street station change hands often, and fire-rated sealant around pipes and cables through walls and floors needs making good whenever new services go through. For site and facilities teams at buildings such as St Vincent's Catholic Primary School, service openings in fire-resisting walls need checking after any refurbishment.
City of Westminster is about 3 miles west of London, in Greater London. Anywhere in W2, we can carry out fire rated sealant at your property. We cover 764 towns and villages across Greater London, from the larger towns to small villages.
Here we cover the W2, NW8, W9 and SW1V postcode area for fire rated sealant. Local streets include Portman Square, Grosvenor Square and Cavendish Square. Being close to the A4 and A5, City of Westminster is simple for us to get to for fire rated sealant. Neighbouring places we cover for fire rated sealant include Marylebone (1 mile north-east), Mayfair (1 mile south-east), Tyburn (1 mile west), Burlington Estate (1 mile south-east) and Connaught Village (1 mile west). Further out, we also cover London (3 miles south-east), Shoreditch (3 miles east), Walthamstow (7 miles north-east), Hoxton (3 miles north-east), Whitechapel (4 miles east) and Hampstead (3 miles north-west). As one of the bigger places in Greater London, City of Westminster has every kind of property, from flats to offices.
Near you in City of Westminster
Around City of Westminster, our work takes us to homes and buildings near LITE Regal International School, Royal Society of Medicine Library and Devonshire Arms. You’ll also find The St Marylebone CofE School (0.5 miles north) and Hyde Park (0.6 miles south-west). There’s a railway station in City of Westminster itself: Bond Street station. Well-known places in the area include Dunhill Museum & Archive (within half a mile north) and Kingly Court (0.6 miles east). Not far away are Serpentine and Primrose Hill.
Questions from City of Westminster
Can you help a landlord with a rental near Bond Street station?
Yes. We work for landlords and agents as well as homeowners. Just call 0345 464 0079 or email us with the address and what needs doing, and we’ll send you a clear quote.
Is parking an issue for fire rated sealant in City of Westminster?
London parking needs a little planning, so let us know about permits, bays or a driveway when you book. That way the visit can be planned around it.
Are you insured?
Yes. We are fully insured for every job we do.
Where do you work from?
Our base is Crawley. We work across South East England, London and Scotland.
What sealant do you use?
Each joint gets the product that suits it. Movement, water and weather all affect the choice.
Do you remove the old sealant?
Yes, always, and completely. New silicone does not stick to old silicone, so any old material comes out before anything new goes in.
Is it messy?
No. We protect the surfaces around the joints, and we clear up the old sealant and our materials before we leave.
Is there any odour?
It depends on the product. Some products have a noticeable smell, others very little, and any smell fades as they cure.
Work for landlords, hotels and businesses
Letting agents often deal with us directly. Tell us the address, the job and how access works and we’ll give you a quote.
We work for landlords and agents as well as homeowners. Sealant work between tenants keeps a property looking cared for before the next move-in.