Greater London · England
Fire-rated sealant in World's End, Greater London
Intumescent and fire-rated sealant around gaps, frames and service penetrations for World's End, backed by a 12-month guarantee. Call for a quick quote.
- Door frames with gaps between frame and wall
- Unsealed gaps where pipes and cables go through a wall
- Fire seals that have cracked with movement
Quotes for fire rated sealant in World's End
Your quote is based on your job. We take into account:
- How much old sealant there is and how hard it is to remove
- Mould in or behind the old joints
- Which sealant suits the joint
- Access and height
What you pay reflects the work, not guesswork. That’s why we ask about the job first and agree the price before starting.
Asking for a quote
To help us quote quickly, let us know:
- The rough size of the job
- A few photos by email, if you can
- What the problem is, such as mould, gaps, leaks or cracking
- If it’s domestic, commercial or a hotel
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we will explain how we’d tackle it. When it suits you, phone 0345 464 0079 or drop us an email.
Fire rated sealant in World's End, done properly
A fire seal relies on being installed the way it was tested: the right depth, the right backing and the right product for the substrate. That detail is what we take care over, gap by gap. Common call-outs are for unsealed gaps where pipes and cables go through a wall and new service routes left unsealed after building work, on service penetrations, flats & HMOs and plasterboard & masonry.
London’s offices, shops, hotels, student accommodation and blocks of flats all have joints to look after, from washroom silicone to fire-rated sealant around pipes and cables passing through walls. Where a building in World's End needs to stay open, work can be planned outside normal hours.
A one-year guarantee comes with the work, just as it does everywhere we cover.
- Where
- World's End (N21, EN2, N14)
- Wider area
- Greater London
- Guarantee
- One year on every job
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Aftercare tips
So the new joints stay in good condition:
- Report cracked or damaged seals as soon as you notice them
- Ask every contractor to reseal any fire stopping they disturb
- Keep photos of seals that will be hidden
- Keep general-purpose foam and caulk away from fire-stopping gaps
Tell other trades that the gaps have been sealed, and make sure anything they disturb is resealed with a suitable product. Later work is a common cause of damaged fire stopping.
Any job that breaks through a wall or ceiling should include resealing. Catching it then saves a separate visit later.
Surface by surface
Service penetrations
Different services need different details: metal pipes, cables and plastic pipes are not treated the same. Each one is sealed to the product’s tested detail.
Flats and HMOs
In occupied buildings, we plan the order of work with you. We agree access to each flat and the common parts before work begins.
Fire rated sealant in World's End: local notes
Many London buildings have tight access and loading restrictions, so out-of-hours working can be arranged where needed. 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 work to the specification you’re given, installing the product to its tested details.
If you let a flat or house near Grange Park station, any gap left by new services in shared walls should be closed with a fire-rated product. Community buildings like St Peter's Church are part of the picture too: gaps around pipes and cables are worth checking after any building work there. If you look after a building such as Grange Park Primary School, service openings in fire-resisting walls need checking after any refurbishment.
World's End is about 1 mile west of Enfield, in Greater London. Homes, rented property, offices and hotels in World's End is covered for fire rated sealant. The work is guaranteed for a year. We cover 764 towns and villages across Greater London. There’s also a page for London, about 10 miles away.
All of N21, EN2 and N14 is within our area for fire rated sealant, from the main roads to the quietest streets. That includes homes and businesses on Viga Road, Maxim Road and Vera Avenue and the roads around them. If you are just outside World's End, we cover Grange Park (1 mile north-east), Oakwood (1 mile west), Southgate (2 miles south-west), Osidge (2 miles south-west) and Palmers Green (2 miles south). We also work in nearby towns such as London (10 miles south), City of Westminster (9 miles south), Marylebone (9 miles south), Kensington (11 miles south), St Pancras (8 miles south) and Shoreditch (8 miles south).
Local landmarks in World's End
Around World's End, our work takes us to homes and buildings near Oakwood Park, The Kings Head pub and Highlands School, among other places. World's End’s nearest station is Grange Park station, roughly 0.6 miles east. Well-known places in the area include Chase Farm Hospital (1.5 miles north) and Edmonton Green Shopping Centre (2.7 miles south-east). Open spaces near World's End include Darland's Lake and Oakleigh Park Rail Cutting.
World's End: your questions answered
Is World's End in your area for fire rated sealant?
Yes, World's End is within the area we cover. Our work covers London and the South East. You can phone 0345 464 0079 or send us an email and let us know what needs doing, and we’ll give you a clear quote.
Do you work for landlords with property near Grange Park station?
Yes, we work for landlords and letting agents. Just call 0345 464 0079 or drop us an email and tell us about the property, and we will send you a clear quote.
Do you provide details of the products used?
Yes. Every gap we seal is listed with the product used so it’s there for the next inspection.
What does intumescent mean?
Fire-rated sealant covers any sealant tested for use in fire stopping. Intumescent types expand when heated, and they’re one of the options. The specification and the tested detail decide which is used.
Do you work in flats, HMOs and commercial buildings?
Yes, whether the building is a school, an office, flats or an HMO, and whether it’s in use or not. Let us know the building’s hours and we will plan the work to suit.
Is the work guaranteed?
Yes. All our work carries a 12-month guarantee.
Where is Mr Mastic based?
We are based in Crawley, West Sussex, and we work across South East England, London and Scotland.
Will there be a smell?
Possibly a little. Any smell clears as the sealant cures, and ventilation helps.
How it works
Good joint work is mostly preparation, and we don’t rush it. Every joint is cleaned and dried before new material goes in. All told, the work takes from a few hours to a few days, depending on the number of gaps and the access. 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.
- We plan the order of work and access, floor by floor or flat by flat.
- We take out any damaged or unsuitable sealant.
- 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.
Preparing for the visit
- For business premises, tell us about site rules or sign-in
- Clear the area around the work
- Let us know about parking restrictions
Ask for a quote
Getting a quote is simple: let us know the job and the location. Photos by email help us understand the job.
Related advice
Work for landlords, hotels and businesses
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we will quote.
Landlords and letting agents in World's End can book us as well as homeowners. Resealing between tenancies keeps a property looking cared for.
Why act early in World's End
Squirting in whichever sealant is nearest does not make a fire seal. A fire-rated product only performs as tested when it’s installed to its tested detail, so both the product and the method matter. Converted houses in London often have a bathroom above someone else’s living room, so a small leak from tired sealant can mean a neighbour’s ceiling and a lot of disruption. Dealing with it early is far simpler for homes in World's End.
Instead of a standard rate, we look at what your job involves: the amount of work, the old material and the access. The price is agreed before we begin.
What you get with us
- Anti-fungal silicone where joints get wet
- Rated 4.9 stars on Google
- Any old sealant cut out fully, not covered over
- Tidy, careful work
See our cost guide or what customers say.
Towns and villages near World's End
What else we do in World's End
Honest limits
Honest advice matters more to us than a booking, so here’s what new sealant won’t do:
- Sign-off of the building, which sits with building control or your assessor
- Large holes that need a different fire-stopping system
- Deciding what fire stopping a building needs
Not sure which it is? You can phone 0345 464 0079 or drop us an email and we will tell you honestly before you book.
Where we work in World's End
- Door frames
- Service penetrations
- Flats & HMOs
- Linear gaps
- Plasterboard & masonry
- Pipe & cable gaps