East Sussex · England
Three Leg Cross Fire Rated Sealant
Intumescent and fire-rated sealant around gaps, frames and service penetrations for homes and businesses in Three Leg Cross and across East Sussex. Fully insured, ARBOMaster approved and guaranteed for a year.
- Joints picked up in a fire-stopping survey
- Gaps where walls meet ceilings or slabs
- Gaps left after a refit or conversion
About our fire rated sealant in Three Leg Cross
A fire seal relies on being installed the way it was tested: the right depth, the right backing and the right product for the substrate. That detail is what we take care over, one gap at a time. Typical jobs include gaps where walls meet ceilings or slabs and sealant items on a fire risk assessment action list, across service penetrations, flats & HMOs and plasterboard & masonry.
Work in a small place like Three Leg Cross is planned ahead, journey included, so the job can fit around bookings, guests or opening times where possible.
Your job is guaranteed for a year, as with all our work.
- Place
- Three Leg Cross (TN5)
- Wider area
- East Sussex
- Cover
- A year, on every job
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Landlords, agents and businesses in Three Leg Cross
For anyone letting property in or around Three Leg Cross, several properties can be quoted together. Just tell us the addresses and what each one needs, and pictures by email help.
Whether it’s one flat or a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
Quotes for fire rated sealant in Three Leg Cross
Jobs vary more than people expect. The main factors:
- Whether the work is at height
- How many areas need sealing
- Whether there’s mould to deal with
- Working hours on commercial sites
Doing several joints on one visit is normally more efficient than separate visits. You’ll get one clear quote for the whole job.
Asking for a quote
To help us quote quickly, please include:
- The problem you’ve noticed
- Roughly how big the job is
- The address or postcode of the job
- A few photos by email, if you can
To get a quote, phone 0345 464 0079 or send us an email with the location and a short description of the problem. We’ll give you a clear price before any work starts.
When to call us in Three Leg Cross
Gaps around door frames are easily missed. The gap between the frame and the wall is hidden behind the architrave, so it can be left open when a door is replaced.
Common reasons people contact us are:
- Standard silicone or caulk in a fire-stopping gap
- Damaged fire sealant left by other trades
- Gaps around pipes and cables through fire-resisting walls
- Unsealed gaps around fire door frames
For site and facilities teams at buildings such as Ticehurst and Flimwell Church of England Primary School, service openings in fire-resisting walls need checking after any refurbishment.
What to look for in a quote
- What the cure time is
- How hidden problems are handled
- Which colour the sealant will be
- What insurance they hold
How the visit works
Every visit runs the same way: we check the joints, protect the area around them, carry out the job and tidy away. Most jobs take from a few hours to a few days, depending on the number of gaps and the access. Somewhere as small as Three Leg Cross, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We go through the gaps on your list or survey and check each one’s size and substrate.
- 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.
- Finally, we list where we worked and what we used, for your records.
Getting ready for the visit
- Mention any tricky access
- On commercial sites, let us know about site rules
- Where the joints are inside, avoid wetting them before we arrive
Get a quote
Need a quote? Please call 0345 464 0079 or email us with a few details. We’ll explain what we’d do and give you a clear price before any work starts.
Related advice
DIY sealant or a professional job?
If you’ve already had a go yourself, that’s fine. We cut it out and start again, so tell us about it when you ask for a quote.
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.
What sealant work can’t fix
We won’t take on work that will not last, so these are the limits:
- Sign-off of the building, which sits with building control or your assessor
- Deciding what fire stopping a building needs
- Problems with the door itself rather than the gap around the frame
If in doubt, ring 0345 464 0079 or email us and we’ll say what we think.
Surfaces we seal
- Linear gaps
- Plasterboard & masonry
- Door frames
- Service penetrations
- Flats & HMOs
- Pipe & cable gaps
Three Leg Cross questions
Is Three Leg Cross in your area for fire rated sealant?
Yes, Three Leg Cross is within the area we cover. We work across London and the South East. You can ring 0345 464 0079 or send us an email and tell us what needs doing.
Do you work for landlords with property near Stonegate station?
Yes, we work for letting agents and landlords. You can call 0345 464 0079 or email us with the address and a few details, and we’ll give you a fixed price before any work starts.
What do you need from me for a quote?
A short description and the location, plus photos if you have them. If we need more, we’ll ask.
Can you give us a record of the work?
Yes. We record the locations we have sealed and the products used for your files.
Should I try DIY first?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
What fire rating will the seal have?
We don’t issue ratings or certificates ourselves. What’s required is set by your assessor or designer, and the product’s tested details show what it achieves, and we install to them.
Can you match the sealant colour?
We will suggest a colour to suit the surroundings. The choice depends on the product the joint needs.
Do you have insurance?
Yes. Mr Mastic is fully insured, and we’ve been doing sealant work for more than 20 years.
Different surfaces, different methods
Door frames
A door can only do its job if the gap behind its frame is sealed too. We seal that gap with a fire-rated sealant suited to the frame and wall.
Flats and HMOs
Conversions generally leave a mix of old and new service holes. The gaps on your list are sealed with a fire-rated product and record where they are.
Towns and villages near Three Leg Cross
Also in Three Leg Cross
Fire rated sealant around Three Leg 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, and gaps around services are often picked up there. We work to the specification you’re given, installing the product to its tested details.
Community buildings like St Mary's Church are part of the picture too: service openings in its walls need the right fire-rated sealant, as in any building. Letting a property close to Stonegate station? Then any gap left by new services in shared walls should be closed with a fire-rated product.
Three Leg Cross is about 8 miles south-east of Royal Tunbridge Wells, in East Sussex. Jobs in Three Leg Cross get the same care as everywhere else we work: old sealant removed completely, careful preparation and a one-year guarantee. 289 places in East Sussex are on our list. Crawley is on our list too, around 26 miles away.
We cover every part of TN5 for fire rated sealant and the streets around it. We also cover Ticehurst (1 mile south-east), Stonecrouch (1 mile north-east), Flimwell (2 miles east), Kilndown (2 miles north) and Bedgebury Cross (3 miles north-east). Further out, we also cover Hastings (15 miles south-east), Bexhill-on-Sea (15 miles south), Hailsham (15 miles south-west), Crowborough (10 miles west), St Leonards (15 miles south-east) and Uckfield (14 miles south-west).
Near you in Three Leg Cross
Locally, jobs take us to homes and businesses close to The Bull Inn Public House and the streets around them. For rail, the closest station is Stonegate station, about 3 miles south-west of the centre. A little further out are Old Scotney Castle (2.5 miles north) and Finchcocks Musical Museum (3.4 miles north). Not far away are Bewl Water.