Greater London · England
Force Green Fire Rated Sealant
We cover Force Green for intumescent and fire-rated sealant around gaps, frames and service penetrations. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.
- Gaps left after a refit or conversion
- Unsealed gaps around fire door frames
- Old fire sealant that has split or come away
DIY sealant or a professional job?
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.
If you’ve already had a go yourself, that is fine. We cut it out and start again, so just mention it when you contact us.
How we handle fire rated sealant in Force Green
We don’t assess buildings or decide what fire stopping is needed; your assessor, designer or building control sets that out. Our part is applying the specified sealant carefully, to the right depth and with the right backing. We work on plasterboard & masonry, pipe & cable gaps and linear gaps, and people most often call us about joints picked up in a fire-stopping survey and damaged fire sealant left by other trades.
Across London, offices, shops, hotels, student halls and blocks of flats all need sealant work from time to time, whether that’s washroom resealing or fire-rated sealant around service openings. Out-of-hours working can be arranged where a building in Force Green can’t close.
A 12-month guarantee comes with the work, just as it does everywhere we cover.
- Where
- Force Green (TN16)
- Wider area
- Greater London
- Guarantee
- A year, on every job
- Price
- A clear price before work begins
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Landlords, agents and businesses in Force Green
We also work for property managers and facilities teams in Force Green and across Greater London. We can quote a run of properties together, and we are fully insured.
Hotels need rooms back in use, so we plan the work room by room. Hotel work is part of what we do, alongside homes and businesses.
Why it’s worth doing now in Force Green
Paying for fire stopping that has to be redone is a false economy. Work that doesn’t follow the tested detail may have to come out again once someone inspects it. 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. Putting it right early is much less trouble for homes in Force Green.
Leaving a failed joint usually makes the job bigger, not smaller, as water and mould keep getting in. If you’re unsure, ring 0345 464 0079 or drop us an email and we’ll give you an honest view and a quote.
Why us?
- We leave the area clean and tidy
- 12-month guarantee on every job
- Anti-fungal sanitary silicone in wet areas
- Arbo and Everbuild products
Read our cost guide or what customers say.
What we’re called out for in Force Green
Over time, buildings change layout and use. A house turned into flats or an HMO, or an office split into smaller units, brings new walls, new service routes and new gaps.
Look out for any of the following:
- Open holes round services passing through fire walls
- Ordinary sealant used where a fire-rated product was needed
- Damaged fire sealant left by other trades
- Door frames with gaps between frame and wall
As a London address, Force Green can be tricky for parking: tell us about permits, visitor bays or off-street space when you book.
Comparing quotes
- How much experience the applicator has
- Whether all the old sealant comes out first
- How hidden problems are handled
- Is VAT in the price?
Force Green: your questions answered
Do you work in hotels near Force Green?
Yes. Hotel and guest-house work is part of what we do. Work can be planned room by room, and out-of-hours working can be arranged.
I let a flat near Oxted station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. Just ring 0345 464 0079 or email us with the address and what needs doing, and we’ll give you a clear quote.
Is there any odour?
Possibly a little. It fades as the sealant cures.
What fire rating will the seal have?
We don’t issue ratings or certificates ourselves. What’s required is set by your assessor or designer, and the product’s tested details show what it achieves; we install to those details and record what we did.
How long does fire rated sealant take?
Typically it takes a few hours for a handful of gaps, and longer for a whole building. Larger jobs naturally take longer.
Can you give us a record of the work?
Yes. When the job is done, we give you the locations and products. Tell us if your assessor needs it in a particular format.
What do you need from me for a quote?
Tell us what needs doing and where, with pictures by email if possible. If we need more, we’ll ask.
Where is Mr Mastic based?
We are based in Crawley, West Sussex, and we work across South East England, London and Scotland.
Also near Force Green
More services for Force Green
Fire rated sealant in Force Green: local notes
Commercial buildings in London often have strict access rules and limited loading, so out-of-hours working can be arranged where needed. Force Green 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.
If you let a flat or house near Oxted station, new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant. For buildings such as Church of St Mary the Virgin, service openings in its walls need the right fire-rated sealant, as in any building.
Force Green is about 5 miles west of Sevenoaks, in Greater London. Homes, rented property, offices and hotels in Force Green can book us for fire rated sealant. The work is guaranteed for a year. We cover 764 towns and villages across Greater London. We also work in Crawley, about 16 miles from Force Green.
Postcode districts we cover here for fire rated sealant: TN16. We also cover the places around Force Green: Westerham (1 mile south), South Street (2 miles north-west), Moorhouse Bank (2 miles south-west), Tatsfield (2 miles north-west) and Titsey (2 miles west). Larger places within reach include Orpington (7 miles north), New Cross (14 miles north), Thornton Heath (12 miles north-west), Croydon (10 miles north-west), East Dulwich (14 miles north-west) and Plumstead (14 miles north).
What’s near Force Green
Around Force Green, our work takes us to homes and buildings near The Olde House At Home Public House. The closest station to Force Green is Oxted station, roughly 3.8 miles south-west of the centre. Nearby you will also find Tandridge Priory (2.7 miles south-west). The countryside around Force Green includes Dryhill Nature Reserve and Betsom's Hill.
How we quote for fire rated sealant
Jobs vary more than people expect. What affects the quote:
- The product the joint needs
- Whether the work is at height
- How many rooms, windows or areas are involved
- The size of the job
No two jobs are quite the same, so we quote each one individually. Size, access and the product the joint needs all make a difference.
Asking for a quote
To make quoting easier, let us know:
- How we’d reach the joints
- Where the property is
- Whether it has been sealed before
- What the problem is, such as mould, gaps, leaks or cracking
Every job is quoted individually, so start by telling us what you need. Just call 0345 464 0079 or drop us an email with the details and send photos if you have them.
How it works
When we get to you, we check the joints match what you told us. If we find something unexpected, we talk it through with you first. Most jobs then take 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. If the building has a concierge, managing agent or access rules, tell us when you book.
- Access to each area is agreed so the work can run in order.
- Old, damaged or unsuitable sealant is removed.
- Dust and loose debris are cleaned from each gap.
- The fire-rated or intumescent sealant is applied and tooled to the tested detail.
- Locations and products are written up and any gaps unsuitable for sealant are flagged.
How to prepare
- Mention if the joints have been sealed before
- Clear items away from the joints we are working on
- Let us know about parking restrictions
How to get a quote
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we will talk you through what we’d do. Whenever you are ready, ring 0345 464 0079 or email us.
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Looking after it afterwards
Joint life depends on how it’s used and looked after. We suggest:
- Tell trades working in the building that fire seals must be put back
- Look in service cupboards and ceiling voids from time to time
- Keep general-purpose foam and caulk away from fire-stopping gaps
- Check whether a sealant can be painted before decorating over it
Look at the sealed gaps as part of your routine walk-rounds. Watch for cracking, gaps or seals that have been disturbed and have them put right.
Small gaps around services are simple to deal with while there are only a few. Leave them and each new job adds another hole and the job gets bigger.