Greater London · England
North Kensington Fire Rated Sealant
Specialist fire rated sealant for North Kensington: careful preparation, the right product and tidy work. Call for a quick quote.
- Gaps flagged on a fire risk assessment
- Gaps filled with a product that is not fire-rated
- Fire seals that have cracked with movement
About our fire rated sealant in North Kensington
We often work from an action list drawn up by a fire risk assessor on buildings across North Kensington. 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 linear gaps at the head of walls and standard silicone or caulk in a fire-stopping gap, on plasterboard & masonry, pipe & cable gaps and flats & HMOs.
London blocks of flats carry pipes and cables through walls and floors in their common parts and service risers. In North Kensington, building managers may need both fire-rated sealant around those openings and new sealant in shared washrooms.
Whatever the size of the job, you get the same 12-month guarantee.
- Where
- North Kensington (W10, NW10, W11)
- Wider area
- Greater London
- Cover
- A year, on every job
- Price
- A clear price before we start
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
What happens on the day
Before we leave, we go over the finished joints with you and tell you how long to leave it. The visit itself generally takes from a few hours to a few days, depending on the number of gaps and the access, depending on the amount of work. Parking in much of London is by permit or pay-and-display, so it helps to know what’s near you in North Kensington. A visitor permit or a nearby bay makes the visit run more smoothly.
- Before starting, we go through the specification or action list with you.
- We measure every gap and note what it’s in and what passes through.
- Unsuitable material such as ordinary foam or silicone is cut out and the faces cleaned.
- The specified fire-rated sealant goes in over any backing its detail requires.
- Every location is recorded with the product used for your files.
Before we arrive
- Mention any parking rules near the property
- Mention any sign-in or site rules at work premises
- Clear items away from the joints we are working on
Getting a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we will talk you through what we’d do. Whenever you are ready, call 0345 464 0079 or email us.
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How we quote for fire rated sealant
We quote each job individually. These are the things that affect it:
- Which sealant suits the joint
- How many areas need sealing
- Any working-time requirements on site
- How easy the joints are to reach
What you pay reflects the work, not a rough estimate. That is why we ask about the job first and give you a clear quote before any work starts.
Asking for a quote
There’s no need for technical detail. Just tell us:
- The rough size of the job
- Pictures of the joints, sent by email
- Any access issues, like height or stairs
- What’s wrong with the joints now
For a quote, phone 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. We will send you a clear quote before any work starts.
What fire rated sealant looks like in North Kensington
North Kensington 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. Commercial buildings in London often have strict access rules and limited loading, and out-of-hours working is possible to arrange.
For landlords with property near Kensal Green station, fire-rated sealant around pipes and cables through walls and floors needs making good whenever new services go through. North Kensington is in London, so parking needs planning: let us know about parking bays, permits or a driveway.
North Kensington is about 2 miles north-west of Kensington, in Greater London. If you need fire rated sealant in North Kensington, it’s easy to get a quote: please phone 0345 464 0079 or drop us an email. We cover Greater London from our Crawley base. North Kensington is one of 764 places in Greater London we cover for fire rated sealant. There’s also a page for London, roughly 6 miles from North Kensington.
Our applicators cover all of W10, NW10 and W11 for fire rated sealant. Local streets include Peach Road, Barlby Road and Eynham Road, and we cover them all. If you’re just outside North Kensington, we cover Kensal Town (1 mile east), Kensal Green (1 mile north-west), Kensal Rise (1 mile north), Notting Dale (1 mile south-east) and White City (1 mile south). Within a short drive, we also cover London (6 miles east), City of Westminster (3 miles east), Marylebone (3 miles east), St Pancras (4 miles east), Shoreditch (6 miles east) and Walthamstow (9 miles north-east).
Around North Kensington
Around North Kensington, our work takes us to homes and buildings near Little Wormwood Scrubs, Maida Vale School and The Eagle pub and the streets around them. For rail, the closest station is Kensal Green station, about 0.5 miles north. Other landmarks nearby include Princess Louise Hospital (within half a mile south-west) and Culture House (1.3 miles south). Open spaces near North Kensington include Campden Hill and Greville Place nature reserve.
Questions from North Kensington
Do you work for landlords with property near Kensal Green station?
Yes, landlords and agents are among the people we work for. You can ring 0345 464 0079 or email us with the details for a clear quote.
Is parking an issue for fire rated sealant in North Kensington?
Parking in North Kensington, as in most of London, takes a little planning: a visitor permit or a nearby bay makes the day run more smoothly, so mention what’s available when you book.
Do you carry out fire risk assessments?
No. We follow the requirements from your assessor, designer or building control, and apply each product to its tested details.
Can you give us a record of the work?
Yes. When the job is done, we give you the locations and products. If you need photos or a set layout, ask when you get a quote.
Will there be a smell?
Possibly a little. It fades as the sealant cures, and ventilation helps.
Is it worth trying it myself?
Some simple jobs can be done by a careful DIYer. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
How long does the job take?
That depends on how much there is to do, 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.
Are you fully insured?
Yes. We’re fully insured for every job we do.
Do you need fire rated sealant in North Kensington?
Much fire stopping is hidden: in ceiling voids, service risers and behind boxing. Because nobody sees it, gaps go unnoticed until an assessor or surveyor looks.
Any of these means the joints need attention:
- Unsealed gaps where pipes and cables go through a wall
- Seals cut through by electricians, plumbers or data installers
- Open joints along the top of partitions
- Sealant items on a fire risk assessment action list
For buildings such as Dissenters' Chapel, service openings in its walls need the right fire-rated sealant, as in any building.
Comparing quotes
- How much experience the applicator has
- Whether they seal over old material or remove it
- What happens if they find a problem under the old sealant
- Is VAT in the price?
Towns and villages near North Kensington
What else we do in North Kensington
What happens if it’s left?
Waiting for the next refit can leave a gap open for years. Sealing the gap now is a contained job on its own and needn’t wait for anything else. 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.
Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs. Call for a quick quote and we’ll explain what it covers.
Why choose Mr Mastic in North Kensington
- Domestic, commercial and hotel work
- Full insurance on every job
- An ARBOMaster approved applicator
- We leave the area clean and tidy
Take a look at how sealant jobs are priced and our reviews.
Surface by surface
Door frames
Frame gaps are normally hidden behind the architrave. We seal any open gap to the product’s tested details.
Service penetrations
Pipes, cables and ducts passing through fire-resisting walls and floors each leave a gap. The sealant is chosen for what passes through and how wide the gap is.
Landlord and commercial work in North Kensington
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
We also work for property managers and facilities teams in North Kensington and across Greater London. Several sites can go on one quote, and we are fully insured for the work.
How to look after the new joints
Simple care keeps the joints in good condition. Our advice:
- Report cracked or damaged seals as soon as you notice them
- Plan fire stopping into any work that goes through walls or floors
- Never patch a fire seal with standard sealant
- Photograph sealed gaps before they’re covered up
Do not add foam, filler or ordinary sealant over a fire seal. Repairs should use a matching fire-rated product. Ask us if you are not sure which product was used.
Any job that breaks through a wall or ceiling should include resealing. Catching it then saves a separate visit later.