Kent · England
Fire-rated sealant in Stone, Kent
Intumescent and fire-rated sealant around gaps, frames and service penetrations in Stone, with a one-year guarantee on every job. Ask us for a quote.
- Door frames with gaps between frame and wall
- New service routes left unsealed after building work
- Ordinary sealant used where a fire-rated product was needed
Fire rated sealant for homes and businesses in Stone
Later work by other trades often breaks through fire stopping, especially in flats, HMOs, offices and schools. One new cable or pipe can leave a gap that nobody goes back to seal. We seal them with a product tested for that kind of gap. If you have unsealed gaps where pipes and cables go through a wall and gaps filled with a product that isn’t fire-rated, we can help, on door frames, pipe & cable gaps and flats & HMOs alike.
If you run a pub, café, guest house or shop in or near Stone, the washrooms and kitchen need the same attention as a big site.
You are covered for a year from the day we finish. If anything is not right with it, phone 0345 464 0079 or drop us an email.
- Location
- Stone (DA9)
- Wider area
- Kent
- Guarantee
- A year, on every job
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Can I do it myself?
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
Looking after it afterwards
Simple care keeps the joints in good condition. We recommend:
- Do not paint over fire sealant until it has cured
- Make resealing part of every contractor’s brief
- Look in service cupboards and ceiling voids from time to time
- 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.
If a fire risk assessment has flagged a gap, don’t leave it for the next one. Have it sealed, then keep the record.
Honest limits
A few problems are outside what sealant work can do:
- Deciding what fire stopping a building needs
- Fire doors that need new seals, closers or hardware
- Sign-off of the building, which sits with building control or your assessor
If in doubt, call 0345 464 0079 or email us and we will say what we think.
Joints and surfaces we work on
- Linear gaps
- Pipe & cable gaps
- Flats & HMOs
- Service penetrations
- Plasterboard & masonry
- Door frames
Leave it or put it right?
Fire-rated sealants need more care than everyday sealant. How it’s installed changes how it performs, so we follow the maker’s details on every gap. In an older home around Stone, damp from a failed joint can get into timber and plaster, and that is a much bigger job than renewing the sealant.
Some things make a job bigger or smaller: the old material and how easily it comes out, 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 Stone
- Any old sealant cut out fully, not covered over
- Sanitary silicone with an anti-fungal additive in wet areas
- 12-month guarantee on every job
- Over 20 years’ experience
Read what affects the cost and our reviews.
Landlords, agents and businesses in Stone
We work for landlords and letting agents as well as homeowners. Sealant work between tenants keeps a property looking cared for before the next move-in.
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance.
What we do, step by step
Every visit runs the same way: we look at the joints together, protect the area around them, do the work and clear up. It generally takes anything from a few hours to several days, depending on how many gaps there are. In a smaller place like Stone, parking is seldom the issue; lanes, gates and long drives are worth mentioning. If the job is outside, tell us about side access and how high the joints are.
- We begin by agreeing the list of gaps from your assessor’s or designer’s requirements.
- 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.
- The specified fire-rated sealant goes in over any backing its detail requires.
- We hand over a list of locations and products for your files.
How to prepare
- Where the joints are inside, avoid wetting them before we arrive
- Let us know about parking restrictions
- Mention any tricky access
How to get a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and add pictures by email if you can.
Read more
Common questions in Stone
Is Stone in your area for fire rated sealant?
Yes, Stone is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or drop us an email with a few details of the job, and we’ll give you a clear price.
Can you help a landlord with a rental near Stone Crossing station?
Yes, rental work is part of what we do. You can phone 0345 464 0079 or email us with the address and a few details, and we’ll give you a fixed price before any work starts.
Will we have a record of what was sealed?
Yes. When the job is done, we give you the locations and products. If you need pictures or a set layout, ask when you get a quote.
Is it OK to seal over old sealant?
No. The old sealant always comes out first.
Can I do it myself?
Some simple jobs can be done by a careful DIYer. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Does someone need to be in?
That depends on where the joints are. Inside work needs someone to give us access.
Are you fully insured?
Yes. We’re fully insured.
Are you an approved applicator?
Yes. We hold ARBOMaster approved applicator status, and we’re fully insured.
Nearby places to Stone
Also in Stone
What affects the quote in Stone
There’s no set price list, because jobs vary so much. What we look at:
- Whether there’s mould to deal with
- Access and height
- Which sealant suits the joint
- The old material and how stubborn it is
The cost reflects the work involved, not guesswork. That is why we ask about the job first.
What to tell us for a quote
To help us quote quickly, let us know:
- If someone has resealed it before
- Roughly how big the job is
- Where the job is, and your postcode
- Access, such as stairs, a lift or height
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we’ll explain how we’d tackle it. When it suits you, call 0345 464 0079 or email us.
Fire rated sealant around Stone
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 apply fire-rated sealant to the assessor’s or designer’s specification and the product’s tested details.
For landlords with property near Stone Crossing station, new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant. Managing a site like Stone St Mary's CofE Primary School? Then service openings in fire-resisting walls need checking after any refurbishment. If you look after a church, hall or community building such as Church of St Mary, service openings in its walls need the right fire-rated sealant, as in any building.
Stone is about 2 miles east of Dartford, in Kent. Whether you’re in the middle of Stone or further out, fire rated sealant is available for homes and businesses alike. Our Kent coverage runs to 922 places, Stone among them. Our London page covers work nearby.
We cover every part of DA9 for fire rated sealant. If you need fire rated sealant at a property on Church Road, Perkins Close and Richardson Close or anywhere close by, we can help. Stone is on the A296, which makes it straightforward to reach. If you are just outside Stone, we cover Greenhithe (1 mile north-east), Swanscombe (1 mile east), Bean (2 miles south-east), Darenth (2 miles south) and Temple Hill (2 miles west). Larger places within reach include Sevenoaks (12 miles south), Gravesend (5 miles east), Northfleet (3 miles east), Swanley (5 miles south-west), Kings Hill (13 miles south-east) and Windmill Hill (4 miles east).
What’s near Stone
Typical jobs here are in homes near Darenth Country Park, The White Hart Public House and Stone Lodge School. The closest station to Stone is Stone Crossing station, about 0.5 miles north-west. A little further out are Stone Museum of Geology (1.3 miles west) and Darent Valley Hospital (1 mile south-west). Open spaces near Stone include Chafford Gorges Nature Park and Sawyers Lake.