Kent · England

Fire-rated sealant in Hextable, Kent

Intumescent and fire-rated sealant around gaps, frames and service penetrations for homes and businesses in Hextable and across Kent. Fully insured, ARBOMaster approved and guaranteed for a year.

  • Cracked or shrunken fire-rated sealant
  • Unsealed gaps where pipes and cables go through a wall
  • Sealant items on a fire risk assessment action list

Need fire rated sealant in Hextable?

Fire rated sealant in Hextable, done properly

Fire stopping only performs as intended if it’s done to the detail: correct depth, correct backing and a product suited to the surfaces. That’s the part we focus on, gap by gap. Common call-outs are for open holes round services passing through fire walls and sealant items on a fire risk assessment action list, across linear gaps, service penetrations and plasterboard & masonry.

If you run a pub, café, guest house or shop in or near Hextable, its washrooms and kitchen need the same sealant care as any big building.

The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we’ll sort it.

The Mr Mastic team in navy uniforms in front of three Mr Mastic vans
Place
Hextable (BR8, DA2)
Region
Kent
Cover
A year, on every job
Quotes
A clear price before we start
Telephone
0345 464 0079
Updated
26 October 2026

Fire rated sealant in Hextable: 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’re given, installing the product to its tested details.

If you look after a church, hall or community building such as St Peter, gaps around pipes and cables are worth checking after any building work there. Rented homes near Swanley station change hands often, and new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant.

Hextable is about 3 miles south-west of Dartford, in Kent. We provide fire rated sealant to homes and businesses in Hextable, as part of our work across Kent. Our area takes in 922 places across Kent. There’s also a page for London, roughly 13 miles from Hextable.

Every address in BR8 and DA2 is within our area for fire rated sealant. We cover properties on Panter's, Southbank and Plantation Road and the roads around them. With the B258 close by, Hextable is simple for us to get to. We also cover Puddledock (1 mile north-west), Swanley Village (1 mile south-east), Stonehill Green (1 mile west), Joyden's Wood (1 mile north-west) and Wilmington (1 mile north). We also work in nearby towns such as Dartford (3 miles north-east), Sevenoaks (9 miles south), Gravesend (9 miles east), Tonbridge (15 miles south), Northfleet (7 miles east) and Kings Hill (14 miles south-east).

Local landmarks in Hextable

We work in homes and buildings around The Ship pub, Dartford Heath and Hextable School and the streets around them. Hextable’s nearest station is Swanley station, about 1.5 miles south-west of the centre. Well-known places in the area include Broadway Shopping Centre (3.4 miles north-west) and Dartford Library (2.6 miles north-east). Green spaces nearby include Wansunt Pit.

Map of Hextable © OpenStreetMap contributors

Surface by surface

Masonry and concrete

Brick, block and concrete walls and floors are sealed with products tested in masonry. The gap is cleaned of dust first so the seal has something sound to bond to.

Flats and HMOs

Conversions usually leave a mix of old and new service holes. The gaps on your list are sealed with a fire-rated product and the locations noted.

Aftercare tips

Once the sealant has cured, a few habits help it last:

  • Store the list of sealed gaps with your building paperwork
  • Include hidden areas like risers in routine checks
  • Flag any open gap you spot round a pipe or cable
  • Never patch a fire seal with standard sealant

Leave the sealant to cure fully before painting near it. Some fire-rated sealants can be painted and some cannot, so ask us which we used.

Small gaps around services are simple to deal with while there are only a few. Leave them and each new job adds another hole.

DIY sealant or a professional job?

Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.

If you’re set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.

What we cannot put right

To be straight with you, some problems need a different trade:

  • Walls or floors that weren’t built to resist fire
  • Certifying a building or signing off its fire safety
  • Assessing a building’s fire safety

If in doubt, call 0345 464 0079 or email us and we’ll say what we think before you book.

What we seal

  • Door frames
  • Flats & HMOs
  • Linear gaps
  • Service penetrations
  • Plasterboard & masonry
  • Pipe & cable gaps

How it works

There isn’t much for you to do on the day. Point us to the joints and we’ll get on with it. The work itself takes from a few hours to a few days, depending on the number of gaps and the access. Parking around Hextable 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.

  1. We plan the order of work and access, floor by floor or flat by flat.
  2. We take out any damaged or unsuitable sealant.
  3. Gaps are cleaned of dust and loose material.
  4. We apply and tool the sealant to the product’s tested detail.
  5. Locations and products are written up and any gaps unsuitable for sealant are flagged.

Before we arrive

  • On commercial sites, let us know about site rules
  • Let us know about earlier repairs to the joints
  • Clear the area around the work

Get a quote

It all starts with a short chat. Describe the problem, the location and the size of the job, and we’ll talk you through what we’d do. When it suits you, phone 0345 464 0079 or send us an email.

Get a quick quote

Related advice

Your questions about fire rated sealant in Hextable

I let a flat near Swanley station. Can you help?

Yes, rental work is part of what we do. You can ring 0345 464 0079 or send us an email with the address and a few details, and we’ll give you a fixed price before any work starts.

Can you do fire rated sealant in Hextable?

Yes, Hextable is within the area we cover. Our work covers London and the South East. Just call 0345 464 0079 or drop us an email with a few details of the job.

What do you need from me for a quote?

Just the basics: where it is, what you’ve noticed and how we reach it. Then call 0345 464 0079 or drop us an email.

Will the old sealant be removed?

Yes. We cut out all the old sealant and clean the joint.

How long will you be here?

It depends on the size of the job, but as a guide it takes a few hours for a handful of gaps, and longer for a whole building. We’ll tell you when we quote.

Can I choose the sealant colour?

We help you choose a colour that suits. The choice depends on the product the joint needs.

Will you leave a mess?

No. We work neatly, protect the area around the joints and tidy up afterwards.

Should I try DIY first?

You can, for simple jobs. Preparation is everything: all the old sealant out, and a clean, dry joint. We can always put it right if it fails.

What happens if it’s left?

An open gap in a fire-resisting wall is a route for smoke and fire. A proper seal lets the wall do its job again, and the sealing itself is often a contained piece of work. In a smaller place like Hextable, wherever a wall is exposed, a failed outside joint is a real source of damp. Indoors, a failed seal lets water into floors and panels as it would anywhere.

The cost depends on the size of the job, how much old material has to come out and access to the work. We give a clear quote before any work starts, so you know where you stand.

What you get with us

  • More than 20 years in sealant work
  • Anti-fungal sanitary silicone in wet areas
  • 12-month guarantee on every job
  • Old sealant always removed completely

Read how sealant jobs are priced or what customers say.

When to call us in Hextable

Over time, buildings change layout and use. A house turned into flats or an HMO, or an office split into smaller units, brings new walls, new service routes and new gaps.

The most common problems we see are:

  • Fire seals that have cracked with movement
  • Door frames with gaps between frame and wall
  • Open joints along the top of partitions
  • Sealant items on a fire risk assessment action list

For site and facilities teams at buildings such as Hextable Primary School, gaps opened by contractors for new cabling are a common finding in schools and offices.

Questions to ask before you book

  • When the joint can take water or movement
  • What happens if the job turns out different
  • Whether VAT is included
  • Which sealant they’ll use, and why

How to choose a mastic man

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job