East Sussex · England
Fire-rated sealant in High Cross, East Sussex
Specialist fire rated sealant for High Cross: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Standard silicone or caulk in a fire-stopping gap
- Seals cut through by electricians, plumbers or data installers
- Unsealed gaps around fire door frames
Fire rated sealant in High Cross
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. If you’re dealing with gaps flagged on a fire risk assessment and open holes round services passing through fire walls, we can put it right, on pipe & cable gaps, flats & HMOs and plasterboard & masonry alike.
If you have holiday lets, a converted barn used for business or a community building near High Cross, the washrooms, kitchens and any fire-rated joints need the same care as a big site.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we will sort it.
- Where
- High Cross (TN6)
- Region
- East Sussex
- Guarantee
- One year on every job
- Quote
- A clear price before work begins
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Keeping the joints in good condition
How long the joints last depends on use and care. Here’s what we suggest:
- Ask every contractor to reseal any fire stopping they disturb
- Include hidden areas like risers in routine checks
- Don’t fill fire-stopping gaps with ordinary foam or silicone
- Check whether a sealant can be painted before decorating over it
Let contractors know where fire stopping has been done, and ask them to reseal anything they cut through. A lot of damaged fire stopping comes from later work.
If a fire risk assessment has flagged a gap, do not leave it for the next one. Have it sealed, then keep the record so the item can be closed.
Quotes for fire rated sealant in High Cross
Every job gets its own quote. This is what makes a difference:
- Which sealant suits the joint
- Whether there’s mould to deal with
- How many rooms, windows or areas are involved
- How much there is to do
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether we need extra access for height. Your quote takes all of that into account.
Asking for a quote
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- Any access issues, like height or stairs
- The rough size of the job
- Pictures of the joints, sent by email
- Whether it has been sealed before
Call for a quick quote, or email us if that is easier. Describe what needs sealing and we’ll explain what’s involved before giving you a price.
What fire rated sealant looks like in High Cross
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 are given, installing the product to its tested details.
For site and facilities teams at buildings such as Rotherfield Primary School, gaps opened by contractors for new cabling are a common finding in schools and offices. Letting a property close to Crowborough station? Then new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant.
High Cross is about 3 miles east of Crowborough, in East Sussex. We provide fire rated sealant to homes and businesses in High Cross. 289 places in East Sussex are on our list. We also work in Crawley, around 19 miles away.
We cover every part of TN6 for fire rated sealant. With the B2101 close by, High Cross is easy for our applicators to reach for fire rated sealant. We also cover Argos Hill (1 mile east), Rotherfield (1 mile north-west), Town Row (1 mile north), Woolbridge (1 mile south) and Wellbrook (2 miles south-east). Within a short drive, we also cover Lewes (15 miles south-west), Hailsham (12 miles south), Crowborough (3 miles west), Uckfield (7 miles south-west), Polegate (15 miles south) and South Malling (14 miles south-west).
What’s near High Cross
Typical jobs here are in homes near The King's Arms Public House, among other places. The closest station to High Cross is Crowborough station, about 1.8 miles west of the centre. Well-known places in the area include Crowborough War Memorial Hospital (3.1 miles west). The countryside around High Cross includes Crowborough Country Park.
Landlords, agents and businesses in High Cross
From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance.
Common questions in High Cross
Is High Cross within the area you cover?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Do you cover High Cross for fire rated sealant?
Yes, High Cross is within the area we cover. Our work covers London and the South East. Just ring 0345 464 0079 or drop us an email with a few details of the job.
Is there any odour?
There can be a smell while the sealant cures, but it fades. Opening a window helps.
Can you quote for more than one area?
Yes. Tell us about everything you’d like done and you will get one quote.
Do you certify the fire stopping?
That is not something we state or certify. The requirement comes from your assessor, designer or building control, and we fit a product whose tested details meet it.
Is it worth trying it myself?
Sometimes. Preparation is everything: all the old sealant out, and a clean, dry joint. If it does not work out, we can redo it.
Can you seal over the old sealant?
No. New silicone won’t bond to old silicone, and it traps any mould or water underneath. It all has to come out first.
Will you assess my building’s fire safety?
No, we don’t assess buildings. When your assessor or designer has set out what’s needed, we’ll quote for the sealant work on it.
Signs you need fire rated sealant in High Cross
Sealant applied too thin, without the backing its detail needs, or onto dust won’t perform as it was tested. Rushed fire stopping is common.
Common reasons people contact us include:
- Ordinary sealant used where a fire-rated product was needed
- Open joints along the top of partitions
- Holes left by a change of layout
- Old fire sealant that has split or come away
For buildings such as The Parish Church of St Denys, gaps around pipes and cables are worth checking after any building work there.
What your quote should include
- Which colour the sealant will be
- What the cure time is
- How the surfaces are prepared before sealing
- What happens if the job turns out different
What we do, step by step
On the day, we start by going over the job with you, so you know exactly what we are doing. We protect the surfaces around the joints before any work begins. Most jobs take anything from a few hours to several days, depending on how many gaps there are. Somewhere as small as High Cross, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- 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 and the faces cleaned.
- We fit backing where needed and apply the fire-rated sealant to depth.
- We hand over a list of locations and products for your records.
Preparing for the visit
- Mention if the joints have been sealed before
- Mention any sign-in or site rules at work premises
- Clear items away from the joints we’re working on
Ask for a quote
Every job is quoted individually, so start by telling us what you need. Just phone 0345 464 0079 or drop us an email with the details and send pictures if you have them.
Related advice
What sealant work can’t fix
We’d rather tell you now than do work that will not last, so these are the limits:
- Fire risk assessments, which need a qualified assessor
- Walls or floors that weren’t built to resist fire
- Big openings where sealant alone isn’t the tested solution
Not sure which it is? You can phone 0345 464 0079 or send us an email and we will tell you honestly.
What we seal
- Pipe & cable gaps
- Door frames
- Linear gaps
- Plasterboard & masonry
- Flats & HMOs
- Service penetrations
Also near High Cross
Other services in High Cross
What happens if it’s left?
Waiting for the next refit can leave a gap open for years. Sealing the gap now is a contained job on its own. Where a wall is exposed, as many are in small places like High Cross, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote and we will talk you through it.
Why choose Mr Mastic in High Cross
- We leave the area clean and tidy
- An ARBOMaster approved applicator
- Arbo and Everbuild products
- We never seal over old sealant