Kent · England
Fire-rated sealant in Dunk's Green, Kent
Intumescent and fire-rated sealant around gaps, frames and service penetrations for homes and businesses in Dunk's Green and across Kent. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Old fire sealant that has split or come away
- Seals cut through by electricians, plumbers or data installers
- Sealant items on a fire risk assessment action list
Leave it or put it right?
Fire-rated sealants are less forgiving than ordinary ones. Depth, backing and surface preparation all affect how a seal performs, and we work to the product details every time. Older cottages and farmhouses around Dunk's Green can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Combining jobs into one visit is usually more efficient than separate visits, so it’s worth mentioning everything you’d like done. You’ll get one clear quote for the whole job.
Why choose Mr Mastic in Dunk's Green
- Experience in homes, commercial sites and hotels
- Any old sealant cut out fully, not covered over
- Full insurance on every job
- Arbo and Everbuild products
Take a look at how sealant jobs are priced and customer reviews.
Fire rated sealant in Dunk's Green
We often work from an action list drawn up by a fire risk assessor on buildings across Dunk's Green. Send us the list or the survey and we will quote for the fire-rated sealant work on it. We work on flats & HMOs, pipe & cable gaps and door frames, and the jobs we see most are linear gaps at the head of walls and damaged fire sealant left by other trades.
Work in a small place like Dunk's Green is planned ahead, journey included, so it can be fitted around guests, customers or events where possible.
Your job is guaranteed for a year, as with all our work.
- Location
- Dunk's Green (TN11)
- Wider area
- Kent
- Guarantee
- One year on every job
- Price
- A clear price before work begins
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026

Signs you need fire rated sealant in Dunk's Green
If the sealant is too shallow, has the wrong backing or sits on a dusty surface, it is not installed as tested. We see plenty of fire stopping that was hurried particularly when it was the last job before handover.
Keep an eye out for these signs:
- Gaps flagged on a fire risk assessment
- Open joints along the top of partitions
- Standard silicone or caulk in a fire-stopping gap
- Holes left by a change of layout
Community buildings like Plaxtol Church are part of the picture too: service openings in its walls need the right fire-rated sealant, as in any building.
Comparing quotes
- Which sealant they’ll use, and why
- Which colour the sealant will be
- What happens if the job turns out different
- When the joint can take water or movement
What else we do in Dunk's Green
Questions from Dunk's Green
Can you do fire rated sealant in Dunk's Green?
Yes. We work across London and the South East, and Dunk's Green is part of that. You can ring 0345 464 0079 or email us and let us know what needs doing, and we will send you a clear quote.
Is Dunk's Green within the area you cover?
Yes, Dunk's Green is covered. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Can ordinary silicone be used in a fire-stopping gap?
No. A gap that needs fire stopping needs a tested fire-rated product fitted to the maker’s details.
Does someone need to be in?
If the work is inside, we need someone to let us in. After that, you can carry on with your day.
What’s the difference between intumescent and fire-rated sealant?
An intumescent material expands when it’s heated. Many fire-rated sealants work this way, but not all and which one is used depends on the job.
Should I try DIY first?
Sometimes. The key is preparation: remove all the old material and work on a clean, dry joint. We can always put it right if it fails.
Do you provide details of the products used?
Yes. Every gap we seal is listed with the product used, so you have it on file.
Do you hold any approvals?
Yes. Mr Mastic is an ARBOMaster approved applicator, and we are fully insured.
Aftercare tips
No joint lasts for ever, but care makes a real difference. Our tips:
- Report cracked or damaged seals as soon as you notice them
- Plan fire stopping into any work that goes through walls or floors
- File the fire-stopping record where your assessor can find it
- Don’t paint over fire sealant until it has cured
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.
A flagged gap shouldn’t wait for the next assessment. Have it sealed, then keep the record so the item can be closed.
How we quote for fire rated sealant
Call for a quick quote. What matters most is:
- How many rooms, windows or areas are involved
- The old material and how stubborn it is
- Whether the work is at height
- The product the joint needs
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. You’ll know the price before we begin.
What to tell us for a quote
What to tell us when you ask for a quote:
- The problem you’ve noticed
- If someone has resealed it before
- Where the job is, and your postcode
- The type of property
We quote each job on its own, so the first step is telling us about yours. Simply phone 0345 464 0079 or email us and describe the job.
Fire rated sealant in Dunk's Green: local notes
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.
For landlords with property near Borough Green & Wrotham station, fire-rated sealant around pipes and cables through walls and floors needs making good whenever new services go through. Schools such as Plaxtol Primary School are buildings too, and gaps opened by contractors for new cabling are a common finding in schools and offices.
Dunk's Green is about 4 miles north of Tonbridge, in Kent. Jobs in Dunk's Green get the same care as everywhere else we work: old sealant removed completely, careful preparation and a 12-month guarantee. 922 places in Kent are on our list, large and small. London is on our list too, around 24 miles away.
Jobs for fire rated sealant in TN11 works the same way as everywhere else we cover. If you’re just outside Dunk's Green, we cover Plaxtol (1 mile north), Roughway (1 mile east), Claygate Cross (2 miles north), Crouch (2 miles north) and Pittswood (2 miles south). Further out, we also cover Maidstone (10 miles east), Dartford (14 miles north), Sevenoaks (6 miles west), Royal Tunbridge Wells (8 miles south), Gravesend (13 miles north) and Tonbridge (4 miles south).
Landmarks near Dunk's Green
Around Dunk's Green, our work takes us to homes and buildings near Hadlow Rural Community School, The Kentish Rifleman Public House and Ivy Hatch Nature Reserve, among other places. The nearest railway station is Borough Green & Wrotham station, roughly 2.8 miles north of the centre. Other landmarks nearby include Tonbridge Cottage Hospital (5.3 miles south) and Ightham Court (3.1 miles north). Green spaces nearby include Barden Lake.
Honest limits
It helps to know what we can’t do too:
- Certifying a building or signing off its fire safety
- Assessing a building’s fire safety
- Doors that aren’t fire doors in the first place
If in doubt, call 0345 464 0079 or email us and we will say what we think before booking.
Joints and surfaces we work on
- Door frames
- Flats & HMOs
- Plasterboard & masonry
- Linear gaps
- Pipe & cable gaps
- Service penetrations
What we do, step by step
On the day, we start by going over the job with you, so you know exactly what we’re doing. We protect the surfaces around the joints before any work starts. The work usually takes a few hours for a handful of gaps, and longer for a whole building. For a village or hamlet like Dunk's Green, the journey is planned in advance: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- 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.
- We apply and tool the sealant to the product’s tested detail.
- Locations and products are written up and any gaps unsuitable for sealant are flagged.
Preparing for the visit
- Where the joints are inside, avoid wetting them before we arrive
- Move anything stored near the joints
- Keep pets and children clear of the area while we work
Get a quote
Getting a quote is simple: let us know the job and the location. Photos by email help us understand the job, and we will come back to you with a quote.
Read more
Should I try it myself first?
A DIY attempt doesn’t rule out a professional job. We cut it out and start again, so tell us about it when you ask for a quote.
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
