Greater London · England
Foots Cray Fire Rated Sealant
Fire rated sealant across Foots Cray and nearby, with old sealant always removed completely and a 12-month guarantee.
- Gaps flagged on a fire risk assessment
- Open gaps behind door architraves
- Unsealed gaps where pipes and cables go through a wall
About our fire rated sealant in Foots Cray
A gap around a door frame, a linear joint at the head of a wall and a hole round a pipe are each sealed differently. We check the size and the substrate before choosing the product, then the sealant goes in to the depth the product’s details set. Typical jobs include unsealed gaps around fire door frames and standard silicone or caulk in a fire-stopping gap, across plasterboard & masonry, pipe & cable gaps and linear gaps.
In London, a commercial job often starts with access: loading bays, building rules and lifts. For a building in Foots Cray, we agree timings and access before anything starts, and room-by-room programmes can be planned where needed.
Big or small, it’s backed by our 12-month guarantee.
- Place
- Foots Cray (DA14, BR5)
- Wider area
- Greater London
- Guarantee
- One year on every job
- Quotes
- A clear price before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026

Can I do it myself?
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions.
Your questions about fire rated sealant in Foots Cray
Can you do fire rated sealant in Foots Cray?
Yes. Our work covers London and the South East, and Foots Cray is part of that. You can phone 0345 464 0079 or email us and let us know what needs doing, and we will send you a clear quote.
Is parking an issue for fire rated sealant in Foots Cray?
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.
What sealant do you use?
Each joint gets the product that suits it. Movement, water and weather all affect the choice, and we’ll explain our choice.
Will we have a record of what was sealed?
Yes. Every gap we seal is listed with the product used.
Will you leave a mess?
We keep the work tidy. We protect what’s around the joints, and we clear up when we’re done.
What does fire rated sealant cost?
We do not publish prices, because the cost depends on the job: how much there is, what’s there now, how we reach it and what it needs. We agree the price before any work begins.
Do you guarantee your work?
Yes. All our work carries a 12-month guarantee.
Can you work in occupied buildings?
Yes, in flats, HMOs, schools, offices and other buildings, occupied or empty. Let us know the building’s hours and we’ll plan the work to suit.
The process
You do not need to clear the whole room or building, just the space around the work. We protect the rest, and the job takes from a few hours to a few days, depending on the number of gaps and the access in most cases. In Foots Cray, as in most of London, parking needs a little planning. A visitor permit or a nearby bay makes the visit run more smoothly.
- We plan the order of work and access, floor by floor or flat by flat.
- We take out any damaged or unsuitable sealant.
- Dust and loose debris are cleaned from each gap.
- 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
- Tell us about access, such as stairs, a lift or high-level joints
- Try not to wet indoor joints just before the visit
- Tell us about any previous sealing or DIY attempts
Ask for a quote
We do not publish a price list. Instead, we give you a clear price for your job. To arrange one, phone 0345 464 0079 or email us.
Read more
What sealant work cannot fix
Sealant is not the answer to every problem, and we’ll tell you before we start. It won’t solve:
- Problems with the door itself rather than the gap around the frame
- Big openings where sealant alone isn’t the tested solution
- Assessing a building’s fire safety
If in doubt, call 0345 464 0079 or drop us an email and we’ll say what we think before booking.
What we seal
- Plasterboard & masonry
- Flats & HMOs
- Linear gaps
- Door frames
- Pipe & cable gaps
- Service penetrations
Places near Foots Cray
Also in Foots Cray
Keeping the joints in good condition
Once the sealant has cured, a few habits help it last:
- Tell trades working in the building that fire seals must be put back
- Photograph sealed gaps before they’re covered up
- Keep the record of products and locations with your fire safety documents
- Check risers, ceiling voids and cupboards during building checks
Don’t add foam, filler or ordinary sealant over a fire seal. If it needs repair, use the same type of product. We can tell you which product we used.
If a fire risk assessment has flagged a gap, don’t leave it for the next one. Have it sealed, then keep the record.
Landlord and commercial work in Foots Cray
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance that we can handle for you.
We regularly work with letting and managing agents. Tell us the address, the job and how access works.
Do you need fire rated sealant in Foots Cray?
In some buildings the gap was filled with the wrong thing in the first place: ordinary expanding foam, standard silicone or decorators’ caulk in a place that needed a tested fire seal. It looks sealed, but it isn’t fire-rated.
Signs it’s time to call us include:
- Unsealed gaps where pipes and cables go through a wall
- Open joints along the top of partitions
- Fire stopping disturbed by later work
- Sealant items on a fire risk assessment action list
For site and facilities teams at buildings such as Orchard Primary School, fire-stopping around service openings should be restored whenever new services go in.
Comparing quotes
- What happens if the job turns out different
- Whether all the old sealant comes out first
- How long to leave it before use
- Whether VAT is included
Fire rated sealant around Foots Cray
Commercial buildings in London often have strict access rules and limited loading, 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, 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.
For buildings such as Parish Church of All Saints, older buildings that have had new heating or wiring often have service gaps worth checking. For landlords with property near Sidcup station, new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant.
Foots Cray is about 1 mile south-east of Sidcup, in Greater London. From the centre of Foots Cray to the outskirts, we cover fire rated sealant for every kind of property, from flats and houses to offices and hotels. Our Greater London coverage runs to 764 places, Foots Cray among them. There’s also a page for London, roughly 11 miles from Foots Cray.
Our applicators cover all of the DA14 and BR5 postcode area for fire rated sealant and the streets around it. Local streets include Cray Road, Evry Road and The Avenue, and we cover them all. Main roads around Foots Cray include the A223. If you’re just outside Foots Cray, we cover Ruxley (1 mile east), Albany Park (1 mile north-west), Upper Ruxley (1 mile east), Sidcup (1 mile north-west) and North Cray (2 miles north-east). Within a short drive, we also cover London (11 miles north-west), City of Westminster (13 miles north-west), Marylebone (13 miles north-west), Kensington (15 miles north-west), St Pancras (13 miles north-west) and Shoreditch (11 miles north-west).
Near you in Foots Cray
Around Foots Cray, our work takes us to homes and buildings near Foots Cray Meadows, Kemnal Technology College and Walsingham School. The closest station to Foots Cray is Sidcup station, about 1.4 miles north. Nearby you will also find Metropolitan Police Museum (1.3 miles north-west) and Queen Mary's Hospital (0.6 miles west). Green spaces nearby include Summer Hill and The Warren.
Why deal with it now?
Fire-rated sealants are less forgiving than ordinary ones. How it’s installed changes how it performs, and we work to the product details every time. 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.
A few things move the cost up or down: how much old sealant there is and how stubborn it is, any mould to treat, and whether we need extra access for height. Your quote takes all of that into account.
Why choose Mr Mastic in Foots Cray
- Experience in homes, commercial sites and hotels
- Anti-fungal sanitary silicone in wet areas
- Approved under the ARBOMaster scheme
- Tidy, careful work
Take a look at what affects the cost and what customers say.
