Kent · England
Fire-rated sealant in Southborough, Kent
Intumescent and fire-rated sealant around gaps, frames and service penetrations for homes and businesses in Southborough and across Kent. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Gaps left after a refit or conversion
- Gaps filled with a product that is not fire-rated
- Cracked or shrunken fire-rated sealant
How the job changes by surface
Flats and HMOs
In occupied buildings, we plan the order of work with you. Access to flats and common areas is agreed in advance.
Door frames
Frame gaps are usually hidden behind the architrave. Where it’s open, we seal it to the product’s details for that gap size.
Fire rated sealant for homes and businesses in Southborough
Ordinary silicone or decorators’ caulk in a fire-stopping gap isn’t a fire-rated seal. We cut out the wrong material and the gap is resealed with a product tested for that use. Typical jobs include damaged fire sealant left by other trades and gaps filled with a product that isn’t fire-rated, on plasterboard & masonry, service penetrations and pipe & cable gaps.
If you run a pub, café, guest house or shop in or near Southborough, its washrooms and kitchen need the same sealant care as any big building.
All our work comes with a one-year guarantee, wherever you are in Kent.
- Where
- Southborough (TN4, TN2)
- Region
- Kent
- Cover
- A year, on every job
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026

Looking after it afterwards
How long the joints last depends on use and care. Here’s what we suggest:
- Never patch a fire seal with standard sealant
- Ask which product was used before you paint
- Check risers, ceiling voids and cupboards during building checks
- Get damaged fire seals looked at promptly
Look at the sealed gaps as part of your routine walk-rounds. Look for cracks, gaps or sealant that has been cut or pulled out and have them put right.
A gap left open in a fire-resisting wall or floor lets smoke spread in ways the building wasn’t designed for. Closing it is normally a straightforward job.
Signs you need fire rated sealant in Southborough
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.
It’s worth asking for a quote if you see:
- Fire stopping disturbed by later work
- Unsealed gaps where pipes and cables go through a wall
- Standard silicone or caulk in a fire-stopping gap
- Open gaps behind door architraves
Rented homes near High Brooms station change hands often, and fire-rated sealant around pipes and cables through walls and floors needs making good whenever new services go through.
Questions to ask before booking
- How hidden problems are handled
- Whether VAT is included
- Whether all the old sealant comes out first
- What product goes in the joint
What affects the cost of fire rated sealant
Some jobs are bigger than they look, and some smaller. What affects the quote:
- How much old sealant there is and how hard it is to remove
- Which sealant suits the joint
- The number and length of the joints
- Access and height
What you pay reflects the work, not guesswork. That is why we ask about the job first and agree the price before starting.
What we need to know
When you contact us, these details help:
- How we’d reach the joints
- The address or postcode of the job
- The problem you’ve noticed
- The rough size of the job
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is. Whenever you are ready, ring 0345 464 0079 or email us.
What happens on the day
A visit follows a simple pattern: we look at the joints together, mask and protect the surrounding surfaces, do the work and clear up. Most jobs take from a few hours to a few days, depending on the number of gaps and the access. A visit to Southborough is planned like any other: the time, the access and where to park are agreed in advance. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- We start with the survey or action list, checking the size and surfaces of every gap.
- Old or unsuitable sealant is cut out and the gap cleaned.
- Where the tested detail needs backing or fill, we fit it.
- We apply the fire-rated or intumescent sealant to the specified depth and tool it.
- Locations and products are noted so you have them on file.
Before we arrive
- Mention any parking rules near the property
- Let us know if you’ve seen damp or leaks
- Mention any sign-in or site rules at work premises
Ask for a quote
To get a quote, call 0345 464 0079 or email us with the location and a short description of the problem. You will have a clear quote before any work starts.
Advice
Landlord and commercial work in Southborough
If you manage several properties in or around Southborough, jobs at different addresses can be quoted together. Just tell us the addresses and what each one needs.
Housing providers, facilities teams and property managers book us too. Several sites can go on one quote, and we are fully insured for the work.
Fire rated sealant in Southborough: 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, and gaps around services are often picked up there. We work to the specification you are given, installing the product to its tested details.
Managing a site like Southborough CofE Primary School? Then gaps opened by contractors for new cabling are a common finding in schools and offices. Community buildings like Christ Church are part of the picture too: older buildings that have had new heating or wiring often have service gaps worth checking.
Southborough is about 1 mile north of Royal Tunbridge Wells, in Kent. Southborough gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Southborough is one of 922 towns and villages in Kent where we work. There’s also a page for Crawley, about 20 miles away.
All of TN4 and TN2 is within our area for fire rated sealant, from the main roads to the quietest streets. If you need fire rated sealant at a property on London Road, Church Road and Norton Road or a nearby road, we can help. You’ll find Southborough on the A26, so it’s easy for us to get to with everything needed for fire rated sealant. If you are just outside Southborough, we cover High Brooms (1 mile south-east), Stockland Green (1 mile west), Bidborough (1 mile north-west), Royal Tunbridge Wells (1 mile south) and Speldhurst (2 miles west). Larger places within reach include Maidstone (14 miles north-east), Sevenoaks (9 miles north), Tonbridge (3 miles north), Kings Hill (10 miles north-east), Foley Park (15 miles north-east) and Paddock Wood (6 miles east).
Landmarks near Southborough
Around Southborough, our work takes us to homes and buildings near Barnett's Wood, St Gregory's Catholic School and Flying Dutchman pub. Southborough’s nearest station is High Brooms station, roughly 1 mile south-east. Well-known places in the area include Kent and Sussex Hospital (1.4 miles south) and Tonbridge Castle (2.8 miles north). Not far away are Tudeley Woods RSPB reserve and Barden Lake.
Southborough questions
Do you work for landlords with property near High Brooms station?
Yes. We work for landlords and letting agents as well as householders, and several properties can be quoted together. Just ring 0345 464 0079 or send us an email with the address and what needs doing, and we’ll give you a clear quote.
Is Southborough in your area for fire rated sealant?
Yes. Our work covers London and the South East, and Southborough is part of that. Just call 0345 464 0079 or email us with a few details of the job, and we’ll send you a clear quote.
Do you take out the old sealant first?
Yes. We cut out all the old sealant and clean the joint.
Can new sealant go over the old?
No. New silicone won’t bond to old silicone, and anything trapped underneath, including mould and water, stays there. We remove it all first.
Do the sealants smell?
Sometimes, a little. It fades as the sealant cures, and ventilation helps.
Which products do you use?
Quality sealants from brands including Arbo and Everbuild, chosen to suit the joint. We explain the product when we quote.
Are you fully insured?
Yes. Mr Mastic is fully insured, and we have been doing sealant work for more than 20 years.
Can ordinary silicone be used in a fire-stopping gap?
No. It might close the gap, but it is not a fire-rated seal. A tested fire-rated product is needed, or ask us to do it.
Honest limits
Some problems need a builder, plumber or other trade rather than us:
- Deciding what fire stopping a building needs
- Sign-off of the building, which sits with building control or your assessor
- A wall that isn’t a fire-resisting element to begin with
If in doubt, ring 0345 464 0079 or drop us an email and we will say what we think before you book.
Where we work in Southborough
- Door frames
- Plasterboard & masonry
- Flats & HMOs
- Linear gaps
- Pipe & cable gaps
- Service penetrations
