Kent · England

Fire-rated sealant in Hersden, Kent

Intumescent and fire-rated sealant around gaps, frames and service penetrations for Hersden, backed by a one-year guarantee. Call for a quick quote.

  • Gaps where walls meet ceilings or slabs
  • Damaged fire sealant left by other trades
  • Gaps flagged on a fire risk assessment

Trusted fire rated sealant in Hersden

About our fire rated sealant in Hersden

We can work through a building room by room or floor by floor, with each location and product recorded. That record is useful for your files and for whoever looks at the building next. If you have unsealed gaps around fire door frames and gaps left after a refit or conversion, we can put it right, whatever the surface.

If you run a pub, café, guest house or shop in or near Hersden, the washrooms and kitchen need the same attention as a big site, and fire-rated sealant around service openings should be restored after new pipes or cables go through.

Each job carries a 12-month guarantee, large or small.

The Mr Mastic team in navy uniforms in front of three Mr Mastic vans
Location
Hersden (CT3)
Region
Kent
Cover
One year on every job
Quotes
A clear quote up front
Call
0345 464 0079
Page updated
26 October 2026

What affects the quote in Hersden

There’s no set price list, because jobs vary so much. What we look at:

  • The type of sealant required
  • Any mould that needs treating
  • When we can work, for business premises
  • The number of rooms or windows

There are no prices on our website, because the cost depends so much on the job itself. For a quick quote, please ring 0345 464 0079 or drop us an email and we will talk you through it.

Helping us quote

You do not need to know the technical terms. It helps if you can tell us:

  • Roughly how big the job is
  • If it’s domestic, commercial or a hotel
  • What’s wrong with the joints now
  • Any access issues, like height or stairs

To get a quote, call 0345 464 0079 or email us with the location and a short description of the problem. We’ll give you a clear quote before any work starts.

When it isn’t the sealant

Before you book, it’s worth knowing the limits too:

  • Assessing a building’s fire safety
  • Large holes that need a different fire-stopping system
  • Sign-off of the building, which sits with building control or your assessor

If you are not sure, just call 0345 464 0079 or send us an email and we will give you a straight answer before booking.

What we seal

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

For landlords and businesses

Hotels need rooms back in use, so the work can be planned room by room. We have worked in hotels as well as homes and businesses.

Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Resealing at the right time is simple maintenance that we can handle for you.

Commercial buildings in Hersden

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.

For buildings such as Church of All Saints, older buildings that have had new heating or wiring often have service gaps worth checking. Rented homes near Sturry station change hands often, and any gap left by new services in shared walls should be closed with a fire-rated product. Schools such as Hersden Village Primary School are buildings too, and fire-stopping around service openings should be restored whenever new services go in.

Hersden is about 4 miles south of Herne Bay, in Kent. Wherever you are in the CT3 postcode area, our applicators can take on fire rated sealant. Across Kent, we cover 922 places, and Hersden is one of them. Chelmsford is on our list too, about 41 miles from Hersden.

Every address in CT3 is within our area for fire rated sealant, from the main roads to the quietest streets. Whether your property is on The Firs, The Sycamores and Chequer Tree Close or anywhere close by, we can help. If you are just outside Hersden, we cover Westbere (1 mile south-west), Stodmarsh (1 mile south-east), Hoath (1 mile north), Knave's Ash (1 mile north) and Sturry (2 miles west). We also work in nearby towns such as Canterbury (4 miles south-west), Margate (11 miles north-east), Dover (14 miles south-east), Ramsgate (11 miles east), Broadstairs (12 miles east) and Whitstable (6 miles north-west).

Near you in Hersden

In Hersden, that means homes and buildings near Frank Montgomery School, Spires Academy and Ye Olde Yew Tree Inn and the streets around them. Hersden’s nearest station is Sturry station, about 1.9 miles south-west. Well-known places in the area include Canterbury Castle (4.5 miles south-west) and St Martins Hospital (3.4 miles south-west). Open spaces near Hersden include West Blean and Thornden Woods.

Map of Hersden © OpenStreetMap contributors

Why deal with it now?

Sealant isn’t the fix for every opening. Large holes, cable bundles and plastic pipes can call for batts, collars or wraps. If a gap isn’t suitable for sealant, we’ll tell you. Around Hersden, water from a failed joint in an older home can soak into timber and plaster, which is far harder to put right than the sealant itself.

Homes and businesses are quoted the same way: the amount of work, the access and the products needed, along with when we can work on site. Call for a quick quote and we will go through it with you.

Why us?

  • We leave the area clean and tidy
  • Old sealant always removed completely
  • Every job guaranteed for a year
  • Full insurance on every job

Take a look at how sealant jobs are priced or our reviews.

What we do, step by step

Every visit runs the same way: we look at the joints together, protect the area around them, do the work and tidy away. Most jobs take a few hours for a handful of gaps, and longer for a whole building. For a job in Hersden, we agree the time, the access and parking before the day. If the work is outside, the weather plays a part, as sealant needs a dry surface.

  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. Dust and loose debris are cleaned from each gap.
  4. We apply and tool the sealant to the product’s tested detail.
  5. We record what was done and flag anything that needs a different system.

How to prepare

  • Keep children and pets away from the work area
  • Mention any leaks or damp you’ve noticed
  • Mention any sign-in or site rules at work premises

Getting a quote

We don’t publish a price list, because every job is different. Instead, we give you a clear price for your job. To arrange one, call 0345 464 0079 or send us an email.

Get a quick quote

Read more

Hersden questions

Can you do fire rated sealant in Hersden?

Yes. Our work covers London and the South East, and Hersden is part of that. You can phone 0345 464 0079 or drop us an email and tell us what needs doing, and we will send you a clear quote.

Will you come out to Hersden?

Yes. Hersden is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.

Can you fill the gap behind a fire door frame?

Yes. We seal the gap between the frame and the wall with a suitable fire-rated product. The door, its seals and closer are for a door specialist.

Do you provide details of the products used?

Yes. We record the locations we have sealed and the products used to keep with your fire safety documents.

What’s the difference between intumescent and fire-rated sealant?

An intumescent sealant expands when it gets hot to help seal the gap. It’s one type of fire-rated sealant; which product suits depends on the gap, the substrate and the service.

Is it OK to seal over old sealant?

No, and we never do. It can look neat for a few weeks, but the new bead soon lifts. Removing the old sealant completely is the only lasting way.

Will there be a smell?

That depends on the sealant. Some smell for a while, some hardly at all, and any smell fades as they cure.

How long will you be here?

Typically it takes anything from a few hours to several days, depending on how many gaps there are. Larger jobs naturally take longer, and we will say how long yours will take.

DIY versus a professional finish

The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, then guaranteed for a year.

A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.

How the job changes by surface

Plasterboard walls

Many fire-resisting walls in flats, offices and conversions are plasterboard. We use a product tested in that kind of wall.

Door frames

The gap between a door frame and the wall around it needs sealing as well as the door itself. We fill it with a fire-rated product suited to the materials either side.

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