Kent · England

Fire-rated sealant in Wilmington, Kent

We cover Wilmington for intumescent and fire-rated sealant around gaps, frames and service penetrations. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.

  • Linear gaps at the head of walls
  • Old fire sealant that has split or come away
  • Door frames with gaps between frame and wall

Fire rated sealant in Wilmington

Fire rated sealant for homes and businesses in Wilmington

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 is the part we focus on, one gap at a time. If you have cracked or shrunken fire-rated sealant and open holes round services passing through fire walls, we can help, on linear gaps, door frames and plasterboard & masonry alike.

Somewhere as small as Wilmington, commercial jobs tend to be pubs, holiday lets, farm buildings or halls rather than offices. Each still needs sound sealant in its washrooms and kitchens, and fire-rated joints where services pass through walls.

Big or small, it’s backed by our 12-month guarantee in Wilmington and across Kent.

Location
Wilmington (DA2, DA5, DA1)
Region
Kent
Cover
A year, on every job
Quotes
A clear quote up front
Telephone
0345 464 0079
Last updated
26 October 2026
Mr Mastic applicators lined up beside the company vans, one holding a sealant gun

When to call us in Wilmington

Movement in the structure can open gaps too: cracked or debonded sealant leaves an open route through the wall. Knocks, maintenance and building work damage it further.

It’s worth asking for a quote if you see:

  • Holes left by a change of layout
  • Linear gaps at the head of walls
  • Fire stopping disturbed by later work
  • Ordinary sealant used where a fire-rated product was needed

Rented homes near Crayford station change hands often, and new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant.

Before you book anyone

  • Is the old sealant removed completely?
  • Whether they’re fully insured
  • How the joint is cleaned and prepared
  • Who does the work, and how experienced they are

10 questions to ask before booking

DIY versus a professional finish

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. All the old material has to come out first.

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.

The process

Our applicators work methodically: protect, prepare, seal, tidy. For most jobs that takes anything from a few hours to several days, depending on how many gaps there are, and the area is left clean. Somewhere as small as Wilmington, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.

  1. First we work through your list or survey, measuring each gap and checking what it’s formed in.
  2. We remove any old or unsuitable filler and clean the gap.
  3. Where the tested detail needs backing or fill, we fit it.
  4. The sealant goes in to the depth its detail sets, then it’s tooled off.
  5. Finally, we list where we worked and what we used, for your records.

Getting ready for the visit

  • Clear items away from the joints we are working on
  • Tell us if parking is tricky
  • Plan for the work area to be out of bounds to pets and children

Getting a quote

Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we’ll explain what’s involved before giving you a price.

Get a price

Related advice

Wilmington questions

Do you work for landlords with property near Crayford station?

Yes, rental work is part of what we do. You can call 0345 464 0079 or email us with the address and a few details, and we will give you a fixed price before work begins.

Will you come out to Wilmington?

Yes, Wilmington is covered. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.

Will there be a smell?

Some sealants have a smell while they cure, but it fades. Opening a window helps.

Will it make a mess?

Not at all. We work neatly, protect the area around the joints and tidy up afterwards.

Can I choose the sealant colour?

We will suggest a colour to suit the surroundings. The product needed can limit the range.

Is intumescent sealant the same as fire-rated sealant?

An intumescent material expands when it’s heated. Many fire-rated sealants work this way, but not all and which one is used depends on the job.

Which products do you use?

It depends on the joint: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. We use products from Arbo and Everbuild.

Will the old sealant be removed?

Yes, every time. New silicone does not stick to old silicone, so any old material comes out before anything new goes in.

Fire rated sealant around Wilmington

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.

If you look after a church, hall or community building such as St Barnabas, gaps around pipes and cables are worth checking after any building work there. For site and facilities teams at buildings such as Wilmington Grammar School for Girls, fire-stopping around service openings should be restored whenever new services go in.

Wilmington is about 2 miles south-west of Dartford, in Kent. Homes, rented property, offices and hotels in Wilmington is covered for fire rated sealant, old or new, large or small. The work is guaranteed for a year. Our area takes in 922 places across Kent, from the larger towns to small villages. We also work in London, around 13 miles away.

Jobs for fire rated sealant in DA2, DA5 and DA1 works the same way as everywhere else we cover. If you need fire rated sealant at a property on Common Lane, Parsons Lane and Oakfield Lane or a nearby road, our applicators can take on the job. Main roads around Wilmington include the A2, which makes travel easy. We also cover Bowmans (1 mile north), Joyden's Wood (1 mile west), Puddledock (1 mile south-west), Coldblow (1 mile north-west) and Crayford (1 mile north). Within a short drive, we also cover Sevenoaks (10 miles south), Gravesend (8 miles east), Northfleet (7 miles east), Kings Hill (14 miles south-east), Swanscombe (5 miles east) and Windmill Hill (8 miles east).

Landmarks near Wilmington

Locally, jobs take us to homes and businesses close to Dartford Heath, The Plough pub and Wilmington Primary School, among other places. The nearest railway station is Crayford station, roughly 1.3 miles north. A little further out are Stone Castle (4 miles east) and West Hill Hospital (1.4 miles north-east). Open spaces near Wilmington include Wansunt Pit.

Map of Wilmington © OpenStreetMap contributors

How we quote for fire rated sealant

Call for a quick quote. What matters most is:

  • Which sealant suits the joint
  • The size of the job
  • The number of rooms or windows
  • Whether old sealant or filler has to be cut out

What you pay reflects the work, not guesswork. That’s why we ask about the job first and agree the price before starting.

What we need to know

There’s no need for technical detail. Just tell us:

  • What’s wrong with the joints now
  • The type of property
  • The rough size of the job
  • Where the job is, and your postcode

There’s no standard price list, as no two jobs are quite the same. Instead, we give you a clear quote for your job. To arrange one, phone 0345 464 0079 or send us an email.

Why it’s worth doing now in Wilmington

Paying for fire stopping that has to be redone is a false economy. If the details weren’t followed, the seal may need redoing when the building is next checked. Older cottages and farmhouses around Wilmington can have timber floors and frames, where water from a failed joint can cause rot if it’s left.

We do not show prices on the website, because the cost depends so much on the job itself. Call for a quick quote.

Why Wilmington customers choose us

  • Domestic, commercial and hotel work
  • An ARBOMaster approved applicator
  • 180+ five-star Google reviews
  • Anti-fungal sanitary silicone in wet areas

Take a look at our cost guide and our reviews.

Landlords, agents and businesses in Wilmington

We regularly work with letting and managing agents. Tell us the address, the job and how access works and we will give you a quote.

Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. We can quote for more than one property at once.

Keeping the joints in good condition

To keep the joints looking good and working properly:

  • Ask every contractor to reseal any fire stopping they disturb
  • Allow for resealing whenever new services are run
  • Photograph sealed gaps before they’re covered up
  • Flag any open gap you spot round a pipe or cable

Don’t drill through or remove a fire seal without putting it back properly. New services through a sealed wall should include fire stopping in the plan.

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 generally a straightforward job.

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