Kent · England
Fire Rated Sealant in Platt
Intumescent and fire-rated sealant around gaps, frames and service penetrations for Platt, backed by a one-year guarantee. Call for a quick quote.
- Unsealed gaps where pipes and cables go through a wall
- Holes left by a change of layout
- Seals cut through by electricians, plumbers or data installers
Fire rated sealant for homes and businesses in Platt
Intumescent sealant looks much like any other sealant until it gets hot; in a fire it expands into the joint. The right product depends on the gap size, the substrate and what passes through, so we work to the manufacturer’s details. Typical jobs include holes left by a change of layout and sealant items on a fire risk assessment action list, on plasterboard & masonry, service penetrations and door frames.
If you have holiday lets, a converted barn used for business or a community building near Platt, washroom and kitchen sealant and any fire-rated joints need the same attention as anywhere.
We stand behind the work with a one-year guarantee, so you’re covered after we’ve gone.
- Place
- Platt (TN15)
- Wider area
- Kent
- Guarantee
- One year on every job
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Landlord and commercial work in Platt
Housing providers, facilities teams and property managers book us too. We can quote a run of properties together, and we are fully insured.
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
Commercial buildings in Platt
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 are given, installing the product to its tested details. There are hotels and other places to stay in and around Platt. Hotel work can be planned room by room, with out-of-hours working where needed.
For landlords with property near Borough Green & Wrotham station, any gap left by new services in shared walls should be closed with a fire-rated product. Schools such as Platt Church of England Voluntary Aided Primary School are buildings too, and service openings in fire-resisting walls need checking after any refurbishment. For buildings such as Church of St Mary, gaps around pipes and cables are worth checking after any building work there.
Platt is about 6 miles east of Sevenoaks, in Kent. Homes, rented property, offices and hotels in Platt is covered for fire rated sealant. The work is guaranteed for a year. Platt is one of 922 places in Kent where we work. We also work in London, around 23 miles away.
Every address in TN15 is covered for fire rated sealant. We cover properties on St Mary's Close, Grange Road and Platt Common and the roads around them. We also cover the places around Platt: Comp (1 mile south-east), Borough Green (1 mile west), Crouch (1 mile south-west), Wrotham Heath (1 mile north-east) and Basted (1 mile south-west). Further out, we also cover Maidstone (9 miles east), Dartford (12 miles north-west), Sevenoaks (6 miles west), Royal Tunbridge Wells (11 miles south), Gravesend (10 miles north) and Tonbridge (7 miles south).
Local landmarks in Platt
We work in homes and buildings around Wrotham School, The Blue Anchor pub and Wrotham School, among other places. For rail, the closest station is Borough Green & Wrotham station, roughly 0.9 miles west of the centre. Other landmarks nearby include Ightham Court (1.8 miles west) and Beechin Wood Archery Museum (less than half a mile south-east).
How the visit works
On the day, we look over the joints with you first, so you know exactly what we are doing. We protect the surfaces around the joints before work begins. The work normally takes a few hours for a handful of gaps, and longer for a whole building. For a village or hamlet like Platt, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- We start with the survey or action list, checking the size and surfaces of every gap.
- Old or unsuitable sealant is cut out and the gap cleaned.
- Backing or fill is fitted where the product’s tested detail calls for it.
- Fire-rated or intumescent sealant is applied to the right depth and tooled.
- Locations and products are noted so you have them on file.
Preparing for the visit
- Mention any parking rules near the property
- For business premises, tell us about site rules or sign-in
- Clear items away from the joints we’re working on
How to get a quote
If you’re in Platt and need fire rated sealant, call 0345 464 0079 or send us an email. Tell us what the problem is and where, and you’ll get a clear quote before work begins.
Related advice
What affects the cost of fire rated sealant
Your quote is based on your job. We take into account:
- The number and length of the joints
- The number of rooms or windows
- How much old sealant there is and how hard it is to remove
- Mould in or behind the old joints
Rather than a set price list, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
Asking for a quote
There’s no need for technical detail. Just tell us:
- If it’s domestic, commercial or a hotel
- The problem you’ve noticed
- Photos by email, if that is easy
- If someone has resealed it before
We don’t publish a price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To arrange one, call 0345 464 0079 or send us an email.
Different surfaces, different methods
Linear gaps
Long, narrow gaps appear where walls meet slabs and ceilings. We seal them to the tested detail, with backing where it’s needed.
Flats and HMOs
In flats and HMOs, the walls and floors between homes and common areas need sealing where services pass through. We seal the gaps your assessor has identified room by room.
Common questions in Platt
Do you work in hotels near Platt?
Yes, we work for hotels as well as homes and businesses. Rooms can be done a few at a time, so the building stays open.
I let a flat near Borough Green & Wrotham station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. Just phone 0345 464 0079 or email us with the address and what needs doing, and we will send you a clear quote.
Can I do it myself?
That depends on the joint. High-level, external movement and fire-rated joints are professional jobs.
Which products do you use?
The product depends on the job: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. Brands we use include Arbo and Everbuild.
Can new sealant go over the old?
No. New silicone won’t bond to old silicone, and anything trapped underneath, including mould and water, stays there. It all has to come out first.
Where is Mr Mastic based?
Our base is in Crawley, West Sussex, and we work across South East England, London and Scotland.
Do you have insurance?
Yes. Mr Mastic is fully insured, with over 20 years’ experience in sealant work.
How long does fire rated sealant take?
That depends on the amount of work, but most jobs take a few hours for a handful of gaps, and longer for a whole building. We will tell you when we quote.
What happens if it’s left?
For some gaps, sealant isn’t the right answer and another system is needed. Big openings, bundles of cables and plastic pipes may need batts, collars or wraps instead. If a gap isn’t suitable for sealant, we’ll tell you. In a small place like Platt, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Homes and businesses are quoted the same way: the amount of work, how we reach it and what it needs, along with when we can work on site. Ask us for a quote and we’ll go through it with you.
Why Platt clients choose us
- Any old sealant cut out fully, not covered over
- Anti-fungal sanitary silicone in wet areas
- Experience in homes, commercial sites and hotels
- 180+ five-star Google reviews
Places near Platt
Also in Platt
When something else is needed
To be straight with you, some problems need a different trade:
- Deciding what fire stopping a building needs
- Certifying a building or signing off its fire safety
- Big openings where sealant alone isn’t the tested solution
If you’re not sure, just ring 0345 464 0079 or drop us an email and we’ll give you a straight answer before booking.
Where we work in Platt
- Linear gaps
- Service penetrations
- Pipe & cable gaps
- Door frames
- Flats & HMOs
- Plasterboard & masonry
Aftercare tips
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Include fire stopping when you schedule refits
- Photograph sealed gaps before they’re covered up
- Keep the record of products and locations with your fire safety documents
- Include hidden areas like risers in routine checks
File the record of locations and products with your fire safety paperwork. It helps whoever checks the building next.
Open gaps don’t only matter in a fire: noise, draughts and even pests can come through too. Dealing with them early helps with all of these.