Greater London · England
Fire-rated sealant in North End, Greater London
Fire rated sealant in North End from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Standard silicone or caulk in a fire-stopping gap
- Open joints along the top of partitions
- Joints picked up in a fire-stopping survey
How we handle fire rated sealant in North End
Intumescent sealant looks much like any other sealant until it gets hot; in a fire it expands into the joint. Which product suits a gap depends on its width, the materials either side and what runs through it, so we work to the manufacturer’s details. We work on door frames, plasterboard & masonry and pipe & cable gaps, and common reasons people get in touch are gaps filled with a product that isn’t fire-rated and gaps left after a refit or conversion.
Across London, offices, shops, hotels, student halls and blocks of flats all need sealant work from time to time, from washroom silicone to fire-rated sealant around pipes and cables passing through walls. Where a building in North End needs to stay open, work can be planned outside normal hours.
Whatever the size of the job, it’s backed by our 12-month guarantee.
- Where
- North End (W14, SW6, SW5)
- Wider area
- Greater London
- Cover
- A year, on every job
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Looking after it afterwards
No joint lasts for ever, but care makes a real difference. A few tips:
- Ask every contractor to reseal any fire stopping they disturb
- Allow for resealing whenever new services are run
- Flag any open gap you spot round a pipe or cable
- Keep general-purpose foam and caulk away from fire-stopping gaps
File the record of locations and products with your fire safety paperwork. It helps whoever checks the building next.
A flagged gap shouldn’t wait for the next assessment. Get it sealed and recorded so the item can be closed.
Nearby places to North End
Other services in North End
Can I do it myself?
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
If you’ve already had a go yourself, that is fine. We cut it out and start again, so tell us about it when you ask for a quote.
What the job involves on each surface
Door frames
A door can only do its job if the gap behind its frame is sealed too. We seal that gap with a fire-rated sealant suited to the frame and wall.
Service penetrations
Different services need different details: metal pipes, cables and plastic pipes are not treated the same. We follow the manufacturer’s tested detail for each and we flag any that need another system.
Leave it or put it right?
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 from a shower or window joint can reach the flat below, and gaps in fire-stopping matter to everyone in the building.
No two jobs are quite the same, so we quote each one individually. Size, access and the product the joint needs all play a part.
Why choose Mr Mastic in North End
- Old sealant always removed completely
- Domestic, commercial and hotel work
- 20+ years of sealant experience
- Neat joints and a tidy finish
Commercial buildings in North End
North End 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. In England, the Regulatory Reform (Fire Safety) Order 2005 requires a fire risk assessment for workplaces and for the common parts of blocks of flats, which is often where open fire-stopping gaps are first noticed. We work to the specification you’re given, installing the product to its tested details.
If you look after a church, hall or community building such as St. Andrew's Fulham Fields, gaps around pipes and cables are worth checking after any building work there. Managing a site like The Fulham Boys School? Then fire-stopping around service openings should be restored whenever new services go in. As a London address, North End can be tricky for parking: let us know about parking bays, permits or a driveway.
North End is about 1 mile south of Kensington, in Greater London. Wherever you are in the W14 postcode area, our applicators can take on fire rated sealant. North End is one of 764 towns and villages in Greater London where we work for fire rated sealant.
Jobs for fire rated sealant in W14, SW6 and SW5 is quoted and booked the same way as anywhere else. Local streets include Sun Road, Star Road and Field Road, all of which we cover. We also cover the places around North End: West Kensington (1 mile east), Brook Green (1 mile north-west), Fulham (1 mile south), Hammersmith (1 mile west) and Brackenbury Village (1 mile north-west). We also work in nearby towns such as London (5 miles east), City of Westminster (3 miles north-east), Marylebone (3 miles north-east), St Pancras (5 miles north-east), Shoreditch (6 miles north-east) and Walthamstow (10 miles north-east).
Around North End
Locally, jobs take us to homes and businesses close to Seven Stars pub, Polish Library POSK in London and Avonmore Primary School and the streets around them. For rail, the closest station is Kensington Olympia station, about 0.5 miles north of the centre. Other landmarks nearby include Hammersmith Broadway (0.7 miles west) and Montfichet's Tower (4.8 miles east). The countryside around North End includes WWT London Wetland Centre and Campden Hill.
What happens on the day
On the day, there’s very little for you to do. Point us to the joints and we will get on with it. The job generally takes a few hours for a handful of gaps, and longer for a whole building, including the tidy-up. In a London area like North End, the main things to plan are parking and access: tell us about permits, visitor bays or off-street space, which floor we’re working on and whether there’s a lift.
- We start with the survey or action list, checking the size and surfaces of every gap.
- Anything that is not fit for the job comes out, and the gap is cleaned.
- Backing or fill is fitted where the product’s tested detail calls for it.
- The sealant goes in to the depth its detail sets, then it’s tooled off.
- Locations and products are noted so you have them on file.
How to prepare
- Tell us if parking is tricky
- Tell us about access, such as stairs, a lift or high-level joints
- For business premises, tell us about site rules or sign-in
Ask for a quote
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we will explain how we’d tackle it. When it suits you, ring 0345 464 0079 or drop us an email.
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Landlords, agents and businesses in North End
From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Housing providers, facilities teams and property managers book us too in North End and across Greater London. We can quote a run of properties together.
Questions from North End
Can parking be tricky for a visit in North End?
Parking in North End, 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 work for landlords with property near Kensington Olympia station?
Yes. We work for landlords and agents as well as homeowners. Just phone 0345 464 0079 or email us with the address and what needs doing, and we’ll give you a clear price.
What does intumescent mean?
Fire-rated is the broad term for sealants tested for fire stopping. Intumescent ones swell in heat, and they’re one of the options. We use whichever the specification and tested details call for.
Will we have a record of what was sealed?
Yes. We record the locations we’ve sealed and the products used.
Which products do you use?
Quality sealants from brands including Arbo and Everbuild, picked for each joint. We’ll tell you what we’re using and why.
Do you take on fire stopping in schools and offices?
Yes. Flats, HMOs, offices, schools and other occupied buildings are all part of our work. The order of work and access are planned with you.
Can you tell me how many minutes the seal will last?
We don’t give ratings or certificates for our work. The requirement comes from your assessor, designer or building control, and we apply a product tested for it with a record of each location.
Can you quote for more than one area?
Yes. More than one area can be quoted together.
When it isn’t the sealant
A few problems are outside what sealant work can do:
- Doors that are not fire doors in the first place
- A wall that isn’t a fire-resisting element to begin with
- Deciding what fire stopping a building needs
If in doubt, ring 0345 464 0079 or drop us an email and we will say what we think.
Where we work in North End
- Flats & HMOs
- Plasterboard & masonry
- Door frames
- Linear gaps
- Service penetrations
- Pipe & cable gaps