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

Fire Stopping in Flemings

Fire-rated and intumescent sealing of service penetrations and linear gaps throughout Flemings and nearby, by CSCS-carded applicators. Fully insured and CHAS accredited.

  • Fire stopping installed outside its tested range
  • Non-fire-rated filler around services
  • Openings left by services added after handover
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
South East, London & Scotland
Constructionline member
Fully insured: £5m PL

Fire stopping across Flemings

Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.

Fire stopping for commercial buildings in Flemings

Opened ceilings and riser doors often reveal service openings nobody sealed. Where the walls and floors already have a fire-stopping specification, we can work to it. Where there isn’t one, the designer or fire engineer needs to set one first. If you have openings found when ceilings come down for a refit and fire seals cut back for extra cables and never reinstated, we can put it right. Whoever orders the work in Flemings, the brief is usually the same: a fixed quote, no surprises on site and a 12-month guarantee behind the result.

Barn and farm-building conversions near places like Flemings often combine new partitions with old walls. Where a pipe or cable passes through a fire-resisting wall, the seal must match the tested detail: product, substrate, gap and depth.

The 12-month guarantee is for workmanship rather than wear and tear. How long a sealant joint lasts depends on movement, exposure, cleaning and use, so we are clear about what is covered before work starts.

Where
Flemings (CT13)
Region
Kent
Guarantee
12 months on our workmanship
Price
A fixed quote before we start
Call
01277 525 020
Updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

Different surfaces, different methods

Plastic pipes

Waste and drainage pipes through floors are a frequent case. Whether sealant alone is acceptable depends entirely on the tested detail, and we won’t substitute it for a specified collar.

Metal pipes

Metal pipes conduct heat, so their details often call for extra measures along the pipe. If the detail needs something beyond sealant, we tell you.

Diagnose, treat, sign off

Occupied buildings need a little choreography. The work area is signed and kept contained, keep walkways clear and work section by section so the rest of the building stays in use. For work around Flemings, we aim to finish in one visit, so we ask for photographs and rough sizes first. Then the right materials arrive with us.

  1. First we go through the drawings, schedule or specification for the seals and ask about anything unclear.
  2. On site, each opening is checked against the tested detail it is meant to follow.
  3. Anything that doesn’t belong in the opening, such as expanding foam or general-purpose filler, is removed.
  4. We fit the backing the detail asks for, to the stated depth.
  5. Fire-rated or intumescent sealant is gunned in to the specified depth, then tooled.
  6. Openings that need a collar, wrap, batt or other product are flagged to you rather than filled with sealant.

Before we start on site

  • Let us know about inductions and permits
  • Explain the parking and delivery arrangements
  • Confirm the product named in the specification

Request a quote

Every job follows the same four steps: send details, get a quote, we seal, guaranteed. To take the first step, call 01277 525 020 or email a schedule or drawings.

Get a quick quote

Read more

After the work

A few simple habits keep the new joints working:

  • Flag new cables with no seal around them
  • Settle who seals which penetrations at the start of a project
  • File the specified details where the next contractor can find them
  • Look above ceilings when tiles are lifted for other jobs

Don’t patch a fire-rated seal with anything outside its tested detail. A repair should use the original product, installed the same way.

Looking at service areas on a regular cycle pays off. Catching a damaged seal early keeps the fix small compared with dozens found at once.

Flemings: questions and answers

What happens to BS 476 references for fire stopping in Flemings?

Approved Document B loses its BS 476 references from 2 September 2029, and BS EN 13501-2 becomes the route, subject to transitional arrangements. Whichever applies, we install the specified product to its tested detail; the specification is for the designer to set.

Is Flemings too small for you to travel to?

Not at all. Flemings is within our area. Our area covers London and the South East counties. Where we can, we group nearby jobs to make the most of each trip.

Is your workmanship covered by a guarantee?

Yes. It runs for twelve months and covers how we prepared and sealed the joints, though not damage or work by other trades.

Can the building stay open while you work?

In most cases, yes. We phase the work so most of the building stays in use, with each area protected and signed.

Can you work to our specification?

Yes. The specification and the manufacturer’s installation guidance are what we work to.

Are you CHAS accredited?

Yes. We are CHAS accredited and a Constructionline member.

Are you insured?

Yes. We are fully insured, including public liability cover.

What we can’t put right

We check first that sealant really is the fix. It isn’t the answer for:

  • Designing or specifying fire stopping, which sits with the designer or fire engineer
  • Reviewing a building’s overall fire safety
  • Gaps in walls that were never built as compartment walls

Not sure which it is? You can ring 01277 525 020 or email us and we’ll tell you honestly.

Where we work in Flemings

  • Joints between fire-resisting walls and floors
  • Pipe penetrations
  • Cable penetrations
  • Service gaps in risers
  • Small duct penetrations where the tested detail allows
  • Linear gaps at wall heads

How the quote is worked out

A fixed quote reflects the actual work. It allows for:

  • Backing rod, priming and other preparation
  • How much existing material needs removing
  • Induction, permit and paperwork requirements
  • Phasing around occupants

Pricing service penetrations depends on how many there are, their condition and the access, and any specification that applies. Call for a quote.

What we need to price the job

Diagnosis starts before we arrive. Tell us:

  • The type of building and who uses it
  • Asbestos survey details if the building is older
  • The postcode of the building
  • Your programme or deadline

Let us know the site, the scope and your timescale, and a fixed quote will follow. To get it moving, ring 01277 525 020 or email a schedule or drawings.

Leave it or put it right?

It is cheaper to seal service penetrations as each services package finishes than to come back for them later. Openings are visible, access is open and nothing has to be taken down and each detail can be checked as we go. Converted and older buildings near places like Flemings tend to move, and aged sealant cracks. A sealant with the right movement capability, correctly sized, lasts far better.

We don’t publish prices, since every building and every scope is different. For a fixed figure, call for a quote.

Why clients in Flemings choose us

  • Work carried out by CSCS-carded applicators
  • Specification-led, product-correct work
  • Fixed quotes based on photographs, drawings or a visit
  • 12-month guarantee on workmanship

Read our cost guide or our accreditations and insurance.

Penetration seals near Flemings

Flemings lies roughly 61 miles out from central London. Office refits around the commuter belt bring new cabling through fire-resisting walls. Approved Document B is the English guidance that covers fire stopping around openings and penetrations. The national BS 476 classes are due to drop out of it from 2 September 2029, leaving the European BS EN 13501-2 route, subject to transitional arrangements. What we install is set by the specification, and it goes in to the tested detail.

Office fit-outs on sites such as Birnham Farm Business Centre, 0.7 miles south-east of Flemings, add cabling and pipework through fire-resisting walls, and fire-rated sealant goes in where the specification calls for it. Hotels such as The Lion Hotel, 1 mile to the north of Flemings, rely on fire-resisting walls between bedrooms and corridors, and refits that add services leave penetrations to seal where fire-rated sealant is specified. For a building such as Church of St Nicholas, new heating or data runs are the usual reason penetrations need sealing.

Flemings is about 6 miles north-west of Deal, in Kent. Businesses, contractors and managing agents in Flemings can call on us for service penetrations. Across Kent, 931 places are covered, including Flemings. We also cover London, some 61 miles away.

Postcode districts covered here: CT13 for service penetrations. If your building is just outside Flemings, we cover Barnsole (1 mile west), Hammill Park (1 mile south), Coombe (1 mile north-east), Staple (1 mile west) and Ash (1 mile north). Nearby towns on our patch include Canterbury (9 miles west), Margate (9 miles north-east), Dover (9 miles south), Folkestone (13 miles south), Ramsgate (8 miles north-east) and Broadstairs (9 miles north-east).

Around Flemings

We work on buildings around The Black Pig Inn and Sandwich Technology School. For rail, the closest station is Sandwich station, about 2.8 miles east of the centre. A little further out are White Mill (2.4 miles north-east). Not far away are Monk's Wall nature reserve.

Map of Flemings © OpenStreetMap contributors
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