Kent · England
Fire Rated Sealant in Northdown
Intumescent and fire-rated sealant around gaps, frames and service penetrations for homes and businesses in Northdown and across Kent. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Fire stopping disturbed by later work
- Open gaps behind door architraves
- Open holes round services passing through fire walls
About our fire rated sealant in Northdown
Deciding which gaps need fire stopping isn’t our role; 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 linear gaps, door frames and plasterboard & masonry, and people most often call us about unsealed gaps where pipes and cables go through a wall and fire stopping disturbed by later work.
Around a place like Northdown, halls, schools and small businesses all have washrooms and kitchens used by many people. Sealant and fire-rated joints there matter as much as in any larger building.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Location
- Northdown (CT9, CT10)
- Region
- Kent
- Guarantee
- One year on every job
- Price
- A clear price before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026

Surface by surface
Masonry and concrete
Masonry is dusty and porous, so preparation matters. We brush and vacuum the gap and use backing where the detail needs it before the sealant goes in.
Plasterboard walls
Service holes in plasterboard are often rough and oversized. Gaps that are too big for sealant alone need a different detail.
What we can’t put right
Honest advice matters more to us than a booking, so here’s what new sealant won’t do:
- Large holes that need a different fire-stopping system
- Problems with the door itself rather than the gap around the frame
- Walls or floors that weren’t built to resist fire
Not sure which it is? You can call 0345 464 0079 or send us an email and we’ll tell you honestly before you book.
Where we work in Northdown
- Flats & HMOs
- Pipe & cable gaps
- Service penetrations
- Linear gaps
- Plasterboard & masonry
- Door frames
What affects the quote in Northdown
You will get a clear quote before work begins. It takes into account:
- How much there is to do
- Working hours on commercial sites
- Mould in or behind the old joints
- How many rooms, windows or areas are involved
The cost reflects the work involved, not guesswork. That’s why we ask a few questions first and agree the price before starting.
Helping us quote
When you contact us, these details help:
- Any access issues, like height or stairs
- Whether it has been sealed before
- The type of property
- Roughly how big the job is
Every job is quoted individually, so start by telling us what you need. Simply call 0345 464 0079 or send us an email and describe the job, and photos are welcome.
Work for landlords, hotels and businesses
Mouldy or split sealant often shows up at the end of a tenancy. We can quote for more than one property at once.
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 Northdown
If you run a hotel, guest house or holiday let in a coastal place like Northdown, heavy use in the busy months is hard on washroom and kitchen sealant, and any building work there should leave fire-rated joints made good. Workplaces and the common parts of blocks of flats in England need a fire risk assessment under the Regulatory Reform (Fire Safety) Order 2005, 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.
If you look after a church, hall or community building such as St Philip, service openings in its walls need the right fire-rated sealant, as in any building. For landlords with property near Broadstairs station, new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant.
Northdown is about 2 miles east of Margate, in Kent. Our applicators cover fire rated sealant for homes and businesses in Northdown and nearby, as part of our work across Kent. Our Kent coverage runs to 922 places, and Northdown is one of them. We also work in Chelmsford, around 47 miles away.
Jobs for fire rated sealant in CT9 and CT10 works the same way as everywhere else we cover. You’ll find streets such as Old Road, Holly Lane and Green Lane, all of which we cover. We also cover Palm Bay (1 mile north-west), Cliftonville (1 mile west), Kingsgate (1 mile east), St Peter's (1 mile south) and Broadstairs (2 miles south). Larger places within reach include Ramsgate (3 miles south), Deal (12 miles south), Herne Bay (12 miles west), Walmer (13 miles south), St Lawrence (3 miles south) and Newington (3 miles south-west).
Near you in Northdown
In Northdown, that means homes and buildings near Captain Digby Inn and Dane Court Grammar School. The closest station to Northdown is Broadstairs station, roughly 1.8 miles south of the centre. A little further out are Westwood Cross (2.1 miles south-west) and Queen Elizabeth the Queen Mother Hospital (1.4 miles south-west).
Northdown: your questions answered
Do you work for landlords with property near Broadstairs station?
Yes. We work for landlords and letting agents as well as householders. Just phone 0345 464 0079 or send us an email with the address and what needs doing, and we will send you a clear quote.
Do you cover smaller places like Northdown?
Yes, Northdown is covered. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
How do I get a quote for fire rated sealant in Northdown?
There’s no set price, as it depends on the job: its size, the old material, access and the product needed. You will get a clear quote before any work starts.
Should I try DIY first?
Sometimes. Preparation is everything: all the old sealant out, and a clean, dry joint. If it doesn’t work out, we can redo it.
Is it OK to seal over old sealant?
No, it won’t last. It can look neat for a few weeks, but the new bead soon lifts. The old sealant has to come out completely.
Can I use normal mastic around a pipe through a fire wall?
No. It looks sealed but won’t perform as fire stopping. Use a product tested for that gap and service, or ask us to do it.
Is it messy?
We keep the work tidy. We protect what’s around the joints, and we clear up when we’re done.
Can you fill the gap behind a fire door frame?
Yes. Gaps behind architraves are a common job for us. Doors, seals and closers need a door specialist.
Looking after it afterwards
So the new joints stay in good condition:
- Take pictures of fire stopping before ceilings or boxing go back
- Never patch a fire seal with standard sealant
- Flag any open gap you spot round a pipe or cable
- Ask which product was used before you paint
Include fire stopping in your regular building checks. Look for cracks, gaps or sealant that has been cut or pulled out and get them seen to.
Leave a fire-stopping gap open and smoke can move through the building much more easily. Sealing it early is a simple step to take.
What happens on the day
On the day, there’s very little for you to do. Show us the job and we will take it from there. The job generally takes a few hours for a handful of gaps, and longer for a whole building. Parking around Northdown is usually easier than in a town centre, but mention any lanes, gates or long drives. If the job is outside, tell us about side access and how high the joints are.
- First we work through your list or survey, measuring each gap and checking what it’s formed in.
- Anything that isn’t fit for the job comes out, and the gap is cleaned.
- Where the tested detail needs backing or fill, we fit it.
- The sealant goes in to the depth its detail sets, then it’s tooled off.
- Locations and products are noted so you have them on file.
Preparing for the visit
- Tell us about access, such as stairs, a lift or high-level joints
- Mention any sign-in or site rules at work premises
- For indoor joints, keep the area dry beforehand if you can
Ask for a quote
Getting a quote is simple: let us know the job and the location, and roughly how big it is. Photos by email help us understand the job, and we will come back to you with a quote.
Advice
When to call us in Northdown
Over time, buildings change layout and use. Conversions to flats and HMOs, and office refits, create new walls and new routes for services, with gaps to match.
These are the problems we’re asked about most:
- Cracked or shrunken fire-rated sealant
- New service routes left unsealed after building work
- Gaps filled with a product that isn’t fire-rated
- Linear gaps at the head of walls
For site and facilities teams at buildings such as Palm Bay Primary School, gaps opened by contractors for new cabling are a common finding in schools and offices.
Questions to ask before booking
- What preparation is included
- How long the guarantee is
- Is the old sealant removed completely?
- Which colour the sealant will be
