Kent · England
Fire-rated sealant in Sevington, Kent
Problem with your fire-stopping gaps in Sevington? We remove the old material, prepare the joints and seal them properly, with a one-year guarantee.
- Fire stopping disturbed by later work
- Old fire sealant that has split or come away
- Open gaps behind door architraves
When something else is needed
A few problems are outside what sealant work can do:
- Sign-off of the building, which sits with building control or your assessor
- Openings too large for sealant, which need batts, boards or another system
- A wall that isn’t a fire-resisting element to begin with
If you’re not sure, just ring 0345 464 0079 or send us an email and we will give you a straight answer before booking.
Surfaces we seal
- Plasterboard & masonry
- Service penetrations
- Pipe & cable gaps
- Flats & HMOs
- Linear gaps
- Door frames
About our fire rated sealant in Sevington
Where services or frames pass through a fire-resisting wall or floor, the gap around them needs a fire-rated seal. Each gap is sealed to the product maker’s tested detail for its size and substrate, and we can record what went where. If you have cracked or shrunken fire-rated sealant and fire stopping disturbed by later work, we can put it right.
If you have holiday lets, a converted barn used for business or a community building near Sevington, washroom and kitchen sealant and any fire-rated joints need the same attention as anywhere.
A 12-month guarantee comes with the work, just as it does everywhere we cover.

- Where
- Sevington (TN24, TN25)
- Region
- Kent
- Guarantee
- One year on every job
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Towns and villages near Sevington
More services for Sevington
How to look after the new joints
Aftercare is simple:
- Make resealing part of every contractor’s brief
- Ask which product was used before you paint
- Never patch a fire seal with standard sealant
- Keep pictures of seals that will be hidden
Avoid covering a sealed gap with anything that isn’t part of the tested detail. Repairs should use a matching fire-rated product. We can tell you which product we used.
Small gaps around services are simple to deal with while there are only a few. Over time, more work adds more holes.
Landlord and commercial work in Sevington
Landlords and agents in Sevington can book us as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order before the next move-in.
Whether it’s one flat or a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a 12-month guarantee.
Common problems we fix in Sevington
Many open fire-stopping gaps are made after the building is finished. Electricians, plumbers and data installers drill through walls and ceilings and the hole they leave does not always get resealed.
The most common problems we see are:
- Open holes round services passing through fire walls
- Holes left by a change of layout
- Ordinary sealant used where a fire-rated product was needed
- Unsealed gaps around fire door frames
Rented homes near Ashford International station change hands often, and new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant.
Questions to ask before booking
- How hidden problems are handled
- Whether they seal over old material or remove it
- What preparation is included
- Whether they’re fully insured
How it works
We keep the work tidy and contained to the area we are working on, so you can carry on as normal. Expect the work to take a few hours for a handful of gaps, and longer for a whole building, and we explain the cure time before we leave. Somewhere as small as Sevington, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- Before starting, we go through the specification or action list with you.
- 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.
How to prepare
- Let us know about stairs, lifts or work at height
- For indoor joints, keep the area dry beforehand if you can
- Keep children and pets away from the work area
How to get a quote
Getting a quote is simple: tell us what needs doing and where. Photos by email help us understand the job, and we will come back to you with a quote.
Read more
What the job involves on each surface
Flats and HMOs
Flats and HMOs rely on fire separation between homes and the common parts. We seal the gaps your assessor has identified room by room.
Service penetrations
Service penetrations are where new gaps often appear. We clean out what’s there and reseal to the right depth over any backing the detail calls for.
Common questions in Sevington
Do you work for landlords with property near Ashford International station?
Yes. We work for letting agents and landlords as well as homeowners. Just ring 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll give you a clear price.
Can you do fire rated sealant in Sevington?
Yes. We work across London and the South East, and Sevington is part of that. You can phone 0345 464 0079 or send us an email and let us know what needs doing.
Is it OK to seal over old sealant?
No, and we never do. It can look neat for a few weeks, but the new bead soon lifts. The old sealant has to come out completely.
Where is Mr Mastic based?
We’re a Crawley-based firm. Our area covers South East England, London and Scotland.
Is there a guarantee?
Yes, for a year. If there’s a problem with our work in that time, tell us and we’ll put it right.
Can you quote for more than one area?
Yes. Just list everything you need and we’ll quote it together.
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 sealant do you use?
Each joint gets the product that suits it. Movement, water and weather all affect the choice, and we will tell you what we’re using.
Leave it or put it right?
An open gap in a fire-resisting wall is a route for smoke and fire. Sealing it properly restores what the wall was there to do, and the sealing itself is often a contained piece of work. Older cottages and farmhouses around Sevington can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
Leaving a failed joint generally makes the job bigger, not smaller, because water and mould keep working on it. If you are not sure whether it needs doing, phone 0345 464 0079 or send us an email and we will give you an honest view and a quote.
Why choose Mr Mastic in Sevington
- Every job guaranteed for a year
- 4.9 on Google from 180+ five-star reviews
- We are fully insured
- Old sealant always removed completely
Take a look at what affects the cost or customer reviews.
What fire rated sealant looks like in Sevington
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, 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.
Community buildings like Church of St Mary are part of the picture too: service openings in its walls need the right fire-rated sealant, as in any building. For site and facilities teams at buildings such as Willesborough Junior School, gaps opened by contractors for new cabling are a common finding in schools and offices.
Sevington is about 2 miles south-east of Ashford, in Kent. Every kind of property in Sevington can book us for fire rated sealant, old or new, large or small. The work is guaranteed for a year. Our area takes in 922 places across Kent. We also work in Chelmsford, around 46 miles away.
Every address in TN24 and TN25 is covered for fire rated sealant. Local streets include Church Road, Bad Munstereifel Road and Highfield Lane, all of which we cover. Other places close to Sevington include Hinxhill Park (1 mile north-east), Mersham (1 mile south-east), Hinxhill (1 mile north-east), South Stour (2 miles south) and Ridgeway (2 miles east). Further out, we also cover Canterbury (13 miles north-east), Folkestone (12 miles east), Faversham (13 miles north), Hythe (8 miles south-east), Davington (13 miles north) and Preston (13 miles north).
Local landmarks in Sevington
We work in homes and buildings around Ashford Green Corridors, The North School and The William Harvey Public House. The closest station to Sevington is Ashford International station, roughly 1.8 miles north-west of the centre. Nearby you will also find William Harvey Hospital (0.9 miles north) and Ashford Designer Outlet (1.5 miles west). Open spaces near Sevington include Hatch Park.
