The Mastic Doctor team standing beside their branded vans outside an office building
Kent · England

Fire-rated sealing and fire stopping in Challock, Kent

Need fire stopping in Challock? Send us the details for a fixed quote, backed by a 12-month guarantee on the work.

  • Openings found when ceilings come down for a refit
  • Service penetrations left open after M&E works
  • Fire-stopping items raised at inspection or handover
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
London, the South East & Scotland
Constructionline member
£5m public liability

Fire stopping in Challock

Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.

Fire stopping in Challock

Where pipes, cables and other services cross a compartment wall or floor, the opening around them has to be closed so fire and smoke can’t move between compartments. Our job is fitting fire-rated and intumescent sealant at those service penetrations, and along linear gaps, where it is the specified product. Each seal follows the manufacturer’s tested detail. If you have old intumescent sealant that has split away and unsealed joints where partitions meet the slab, we can put it right. Facilities teams, main contractors and managing agents in Challock tend to want the same three things: a clear scope, tidy work and joints that don’t fail again.

Barn and farm-building conversions near places like Challock often combine new partitions with old walls. A penetration seal only performs as tested if product, substrate, service, gap and depth all match the detail.

Whoever the client is, the cover is the same: a 12-month guarantee on our workmanship. Faults in the structure, damage and other trades’ work fall outside it, and we say so plainly.

Place
Challock (TN25)
Wider area
Kent
Cover
12 months on every job
Price
Quoted before any work starts
Phone
01277 525 020
Last updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

How a job runs

Working in a building that stays open takes some planning. We sign and contain the area we are in, keep walkways clear and work section by section so the rest of the building stays in use. Rural sites near Challock may need directions, gate codes or a contact on site. Send that with the details and we’ll confirm the plan with the quote.

  1. We read the specification, drawings or penetration schedule you send.
  2. On site, each opening is checked against the tested detail it is meant to follow.
  3. Unsuitable fillers and loose debris are taken out of each opening.
  4. We fit the backing the detail asks for, to the stated depth.
  5. We apply the specified sealant to the depth and around the services as the detail shows.
  6. Openings that need a collar, wrap, batt or other product are flagged to you rather than filled with sealant.

What we need from you

  • Share the asbestos register for older buildings
  • Point out parking and an unloading spot
  • Send any specification or drawings in advance

Request a quote

Send us photos, drawings or a joint schedule and a fixed quote comes back to you. Where a site visit makes more sense, we will arrange one.

Get a quick quote

Related advice

Do you need fire stopping in Challock?

Plenty of openings were simply never closed. They come to light during inspections, refits or when another trade lifts a tile.

Clients normally get in touch after noticing one or more of the following:

  • Fire sealant pulled out of the opening
  • Builders’ foam or ordinary silicone in compartment walls
  • Snag lists that include open service penetrations
  • Damaged fire seals in risers and voids

In a school such as Challock Primary School, fire-rated sealant goes in around service penetrations where it is specified.

Before you book anyone

  • Health and safety accreditation such as CHAS
  • How the existing material will be dealt with
  • How they’ll work around occupants
  • How they handle RAMS and site documents

Our contractor checklist

Fire-rated sealing for Challock buildings

In England, Approved Document B covers fire stopping of openings and penetrations. Its BS 476 references are being withdrawn from 2 September 2029, with BS EN 13501-2 classification taking over, subject to transitional arrangements. We install whatever has been specified, to the product’s tested detail. At about 46 miles from central London, Challock is within reach of the capital. Offices around the capital are refitted often, and the cabling that follows can breach fire-resisting walls.

For a building such as Church of St Cosmas and St Damian, new heating or data runs are the usual reason penetrations need sealing. On a hospital site such as William Harvey Hospital, 5.6 miles south of Challock, fire-rated sealant goes in where the specification calls for it, with the work planned around the estates team’s permits.

Challock is about 5 miles north of Ashford, in Kent. If you’re looking for fire stopping in Challock, we can help, as we do across Kent. We work across 931 places in Kent, from busy centres to rural villages. For work in that direction, see our London page, about 46 miles away.

Anyone looking for fire stopping in TN25 gets the same process as the rest of our area: details, then a fixed price, then sealing and a 12-month guarantee. Streets here include Chapmans Close, Blind Lane and Old Clock House Green. Just outside Challock, we also work in Pested (1 mile north), Paddock (1 mile west), Stocker's Head (3 miles west), Badlesmere (3 miles north) and Throwley Forstal (3 miles north). A short drive away, we cover Maidstone (15 miles west), Ashford (5 miles south), Canterbury (10 miles north-east), Sittingbourne (11 miles north-west), Whitstable (11 miles north-east) and Faversham (7 miles north).

Local landmarks in Challock

In Challock, that means premises near The Chequers pub and The Hayesbrook School and the streets around them. The closest station to Challock is Wye station, about 3.3 miles south-east. Well-known places in the area include Tower keep castle at Chilham (3.9 miles north-east) and William Harvey Hospital (5.6 miles south).

Map of Challock © OpenStreetMap contributors

What the job involves on each surface

Plastic pipes

Plastic waste pipes through slabs come up often. Whether sealant alone is acceptable depends entirely on the tested detail.

Small ducts

Ducts are only sealed with sealant where the detail allows it. Dampers and ductwork systems themselves are outside our work.

Should maintenance staff do it?

What you see is the finished bead, but most of the work is hidden. Backing rod, primer where specified and a joint designed to move with the building are where general trades tend to cut corners.

Some joints are best left to specialists: for example fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. Getting these wrong usually costs more in the end than doing them right.

What sets the cost

Sealant work doesn’t have a standard rate, because every site is different. What we look at:

  • Joint width, depth and condition
  • Which sealant the job calls for
  • The site’s rules and procedures
  • Whether the work must be split into stages

Small jobs and large programmes are priced from the same things: scope, access, product and programme. Call for a quote, and you will have a fixed figure to work with.

What we need to price the job

Diagnosis starts before we arrive. Let us know:

  • Rough lengths or quantities, or drawings if you have them
  • The site address and postcode
  • A wide shot and a close-up of the area
  • How the joints are reached, and at what height

Pricing a project or setting a maintenance budget? Send the scope and any drawings, and we will return a fixed quote that you can work with. For a chat about it beforehand, give us a call on 01277 525 020 or use the quote form.

Work for main contractors and building owners

When you manage a building on behalf of an owner, you need clear quotes and clear reporting. You get a fixed quote, an agreed scope and a walk round at the end, plus a 12-month guarantee.

Hospitality, education, healthcare, office and retail clients book us directly too. We plan around the way the building is used, so the building keeps working while we do.

FAQs: Challock

Can you work on a hospital site such as William Harvey Hospital?

Yes, hospitals are one of the sectors we cover. Work is phased so departments keep running, under the site’s own rules.

Is Challock too small for you to travel to?

Not at all. Challock is within our area. London and every South East county are within our area. Where we can, we group nearby jobs to make the most of each trip.

Is BS 476 being phased out?

From 2 September 2029, Approved Document B in England drops its references to BS 476 classes. After that, the European classification under BS EN 13501-2 is the route. Your designer will choose products with the right evidence.

Can you quote from photographs?

Photos, drawings or a schedule are often enough to quote. Where they aren’t, we arrange a site visit before quoting.

Do you work in Scotland as well as England?

Building standards in Scotland are separate from England’s, while England relies on Approved Document B. Wherever the site is, our work follows the specification and the tested detail.

Is it fine to apply new sealant on top of old?

No. We cut the old material out and clean the joint back before sealing, because fresh silicone will not bond with aged silicone.

Do you have public liability insurance?

Yes. Our insurance certificate can be sent alongside the quote.

Accreditations

Trusted. Accredited. Insured.