Kent · England

Fire-rated sealant in Marshborough, Kent

Fire rated sealant for Marshborough, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.

  • Door frames with gaps between frame and wall
  • Standard silicone or caulk in a fire-stopping gap
  • Gaps around pipes and cables through fire-resisting walls

Need fire rated sealant in Marshborough?

Aftercare tips

Joint life depends on how it’s used and looked after. We suggest:

  • Include hidden areas like risers in routine checks
  • Photograph sealed gaps before they’re covered up
  • Do not fill fire-stopping gaps with ordinary foam or silicone
  • Make resealing part of every contractor’s brief

Include fire stopping in your regular building checks. Watch for cracking, gaps or seals that have been disturbed 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.

How we handle fire rated sealant in Marshborough

Intumescent sealant looks much like any other sealant until it gets hot; then it swells to help close the gap. Which product suits a gap depends on its width, the materials either side and what runs through it, so we follow the tested detail for each one. We are often asked to deal with open joints along the top of partitions and holes left by a change of layout, on pipe & cable gaps, door frames and service penetrations.

If you have holiday lets, a converted barn used for business or a community building near Marshborough, washroom and kitchen sealant and any fire-rated joints need the same attention as anywhere.

Big or small, you get the same one-year guarantee in Marshborough and across Kent.

The Mr Mastic team in navy uniforms in front of three Mr Mastic vans
Place
Marshborough (CT13)
Wider area
Kent
Guarantee
A year, on every job
Price
Quoted before any work starts
Call
0345 464 0079
Last updated
26 October 2026

DIY versus a professional finish

Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.

If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.

Landlord and commercial work in Marshborough

Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. We can quote for more than one property at once.

Whether it’s one flat or a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a 12-month guarantee.

What we can’t put right

A few problems are outside what sealant work can do:

  • Fire risk assessments, which need a qualified assessor
  • Fire doors that need new seals, closers or hardware
  • Walls or floors that weren’t built to resist fire

If in doubt, phone 0345 464 0079 or send us an email and we’ll say what we think before booking.

Joints and surfaces we work on

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

How it works

Every visit runs the same way: we look at the joints together, mask and protect the surrounding surfaces, carry out the job and tidy away. It normally takes anything from a few hours to several days, depending on how many gaps there are. Somewhere like Marshborough needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.

  1. We go through the gaps on your list or survey and check each one’s size and substrate.
  2. We remove any old or unsuitable filler and clean the gap.
  3. Backing or fill is fitted where the product’s tested detail calls for it.
  4. Fire-rated or intumescent sealant is applied to the right depth and tooled.
  5. We record the locations and products used for your records.

Before we arrive

  • Tell us about any previous sealing or DIY attempts
  • Mention any tricky access
  • Try not to wet indoor joints just before the visit

Get a quote

It all starts with a short chat. Describe the problem, the location and the size of the job, and we will talk you through what we’d do. Whenever you’re ready, ring 0345 464 0079 or send us an email.

Get a price

Advice

Workplaces and buildings in Marshborough

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 apply fire-rated sealant to the assessor’s or designer’s specification and the product’s tested details.

Community buildings like Church of St Mary the Virgin are part of the picture too: older buildings that have had new heating or wiring often have service gaps worth checking. If you look after a building such as Sandwich Technology School, service openings in fire-resisting walls need checking after any refurbishment.

Marshborough is about 5 miles north-west of Deal, in Kent. Every kind of property in Marshborough can book us for fire rated sealant, old or new, large or small. The work is guaranteed for a year. Marshborough is one of 922 places in Kent we cover for fire rated sealant. Chelmsford is on our list too, around 48 miles away.

Here we cover the CT13 postcode area for fire rated sealant. Neighbouring places we cover for fire rated sealant include Woodnesborough (1 mile south-east), East Street (1 mile north), Statenborough (1 mile south-east), Felderland (2 miles south-east) and Sandwich (2 miles east). Larger places within reach include Canterbury (10 miles west), Margate (8 miles north-east), Dover (9 miles south), Folkestone (14 miles south-west), Ramsgate (7 miles north-east) and Broadstairs (8 miles north-east).

What’s near Marshborough

Locally, jobs take us to homes and businesses close to Ham Fen, among other places. The closest station to Marshborough is Sandwich station, roughly 1.7 miles east of the centre. Other landmarks nearby include White Mill (1.3 miles north-east) and Sandown Castle (4.8 miles south-east). The countryside around Marshborough includes Monk's Wall nature reserve.

Map of Marshborough © OpenStreetMap contributors

Why deal with it now?

Squirting in whichever sealant is nearest does not make a fire seal. A fire-rated product only performs as tested when it’s installed to its tested detail, so both the product and the method matter. Around Marshborough, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.

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. We take all of that into account in your quote.

Why us?

  • Experience in homes, commercial sites and hotels
  • 180+ five-star Google reviews
  • Over 20 years’ experience
  • Every job guaranteed for a year

Take a look at our cost guide and our reviews.

Common questions in Marshborough

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

Yes. We work for letting agents and landlords as well as householders, and several properties can be quoted together. Just phone 0345 464 0079 or drop us an email with the address and what needs doing, and we will give you a clear quote.

Is Marshborough in your area for fire rated sealant?

Yes. Our work covers London and the South East, and Marshborough is part of that. You can phone 0345 464 0079 or email us and let us know what needs doing.

Do you take out the old sealant first?

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

How do I get a quote for fire rated sealant in Marshborough?

The cost depends on the size of the job, access and how much old sealant has to come out. Ask us for a quote and we’ll talk you through it.

Will you assess my building’s fire safety?

No, assessment is not something we do. When your assessor or designer has set out what’s needed, we can quote for the fire-rated sealant items.

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.

How long will you be here?

A typical job takes anything from a few hours to several days, depending on how many gaps there are, including preparation and clearing up. We will confirm how long when we quote.

Can you seal over the old sealant?

No. New silicone will not bond to old silicone, and anything trapped underneath, including mould and water, stays there. We remove it all first.

Do you need fire rated sealant in Marshborough?

Gaps around door frames are easily missed. The architrave hides the gap between frame and wall, so it can be left open when a door is replaced.

Any of these means the joints need attention:

  • Open joints along the top of partitions
  • Unsealed gaps where pipes and cables go through a wall
  • Door frames with gaps between frame and wall
  • Ordinary sealant used where a fire-rated product was needed

For landlords with property near Sandwich station, new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant.

Questions to ask before booking

  • How long to leave it before use
  • What preparation is included
  • How long the guarantee is
  • How much experience the applicator has

Choosing a sealant specialist

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