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

Fire-rated sealing and fire stopping in The Moor, Kent

Looking for fire stopping in The Moor? It’s simple: send details, get a quote, we seal, guaranteed.

  • Hidden openings found during inspections
  • Non-fire-rated filler around services
  • Fire sealant pulled out of the opening
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
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
London, the South East & Scotland
Constructionline member
£5m public liability

Fire stopping for The Moor sites

Photos, a specification or a quick description of the joints is enough to start a fixed quote.

Fire stopping for commercial buildings in The Moor

The test standards are BS EN 1366-3 for penetration seals and BS EN 1366-4 for linear joints and the results are classified to BS EN 13501-2. A rating such as EI 60 only holds when the product is installed as it was tested. Reproducing the tested arrangement on site is the part we take care of. We work on cable penetrations, linear gaps at wall heads and small duct penetrations where the tested detail allows, and the usual reasons a site gets in touch are builders’ foam or ordinary silicone in compartment walls and head-of-wall gaps with no fire seal. Facilities teams, main contractors and managing agents in The Moor tend to want the same three things: a clear scope, tidy work and joints that don’t fail again.

Rural conversions around The Moor can put new fire-resisting partitions inside older structures. A penetration seal only performs as tested if product, substrate, service, gap and depth all match the detail.

Building owners and contractors get the same cover: twelve months on the work we carried out. Faults in the structure, damage and other trades’ work fall outside it, and we say so plainly.

Place
The Moor (TN18)
Region
Kent
Guarantee
A 12-month guarantee
Quote
Fixed quote, scope in writing
Call
01277 525 020
Page updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

Common questions from The Moor clients

How does the removal of BS 476 from Approved Document B affect fire-rated sealing in The Moor?

References to BS 476 classes are being removed from Approved Document B from 2 September 2029, after which BS EN 13501-2 classification is the route, subject to transitional arrangements. Our part doesn’t change: the specified product, to its tested detail.

Is The Moor off your patch?

Not at all. The Moor is within our area. We work across Greater London and the South East. We plan jobs in smaller places so return trips are kept to a minimum.

Can you handle several sites?

Yes. Several buildings can share a single quote, and you deal with one contact throughout.

Can weather delay the job?

It can, for external work. Wet joints and cold, damp or frosty conditions stop the sealant bonding properly, so we watch the forecast and rearrange outside work if we have to. Internal work is far less affected.

What if there’s asbestos in the old mastic?

Some older mastics, especially in pre-2000 buildings, can contain asbestos. Before we disturb old sealant in an older building, we ask to see the asbestos register or survey, and work stops until any suspect material has been tested. Removing asbestos is a job for asbestos specialists, not us.

Do you seal on top of existing sealant?

No, never. Overlaying old sealant is a frequent cause of early failure, so it all comes out first.

When can the area be used after sealing?

Curing time varies by product, and we confirm it on the day.

Why deal with it now?

Open penetrations multiply: every new cable or pipe adds another. A schedule that is dealt with regularly stays manageable and avoids a much larger catch-up later. Converted and older buildings near places like The Moor tend to move, and aged sealant cracks. The right product, sized to the joint, copes much better.

Access often affects the price as much as the sealing: easy-to-reach joints are quicker than those that need equipment to get to. Tell us how the joints are reached and call for a quote.

Why us?

  • One contact handling all your sites
  • A Constructionline member, so easy to vet
  • Work to your specification and the manufacturer’s guidance
  • Our applicators hold CSCS cards

Read our cost guide or how we’re accredited.

How a job runs

Site rules come first: signing in, inductions and any permit to work. With the paperwork done, the joints are worked through in the order agreed with your site contact. Rural sites near The Moor may need directions, gate codes or a contact on site. Send that with the details and we will confirm the plan with the quote.

  1. First we confirm the product and tested details named in the specification.
  2. Openings are measured and grouped by detail.
  3. Improvised fillers and failed sealant are removed.
  4. Mineral wool or other backing is fitted where required.
  5. We gun the sealant in to the specified depth around each service and tool it.
  6. Completed areas are checked with you, with the records agreed when we quoted.

Getting the site ready

  • Tell us what induction or permit system the site runs
  • Arrange parking or a loading space
  • Share the asbestos register for older buildings

Get a fixed quote

The quickest route to a quote is a few photos and the site postcode. Upload them with the quote form, or phone 01277 525 020 or send photos by email to discuss it first.

Ask for a quote

Read more

What the job involves on each surface

Metal pipes

Copper and steel pipes are a common service penetration for fire-rated sealant. The tested detail sets the pipe size range, gap, depth and whether insulation can stay on.

Plastic pipes

In a fire, plastic pipework melts away and leaves an opening. Small sizes are sometimes covered by an intumescent sealant detail, though larger ones normally call for a collar or wrap. We check the pipe material and diameter against the detail before we start.

When to call us in The Moor

Most open service penetrations are left by later work. A new cable pulled by an electrician, a pipe rerouted by a plumber or a data run drilled through a riser can leave the hole behind. Across several fit-outs, the openings add up.

If one of these sounds familiar, it’s time for a closer look:

  • Open linear gaps along the top of fire-resisting walls
  • Fire-rated sealant that has cracked or shrunk back
  • Expanding foam used as fire stopping
  • Snag lists that include open service penetrations

For a school such as Marlborough House School, penetration sealing fits best at the end of the summer works.

What to look for in a quote

  • Their pre-qualification and accreditations
  • Will RAMS and insurance details be available?
  • Will CSCS-carded applicators be on site?
  • How they’ll work around occupants

Questions to ask before you appoint anyone

Compartment walls and floors in The Moor

Approved Document B is the English guidance that covers fire stopping around openings and penetrations. From 2 September 2029, BS 476 references are being taken out of Approved Document B, leaving BS EN 13501-2 classification as the route, subject to the Government’s transitional arrangements. Either way, we install the specified product to its tested detail. The Moor lies roughly 41 miles out from central London. Business park offices in the commuter belt are refitted as tenants change, and each fit-out adds services through compartment walls.

Large healthcare estates like Hawkhurst Community Hospital (1 mile north-west of The Moor) change their services often, so penetration seals are worth checking after M&E work. Offices at parks like Hawkhurst Station Business Park, 1.7 miles to the north of The Moor, are re-cabled with each new tenant, and compartment walls need sealing afterwards to the tested detail.

The Moor is about 12 miles north of Hastings, in Kent. Our applicators travel to The Moor for work on service penetrations, handled exactly as we handle every other area. The Moor is one of 931 places in Kent on our list. Brighton is covered too, some 31 miles away.

Postcode districts covered here: TN18. For a building on The Moor, Pipers Lane and The Chestnuts or nearby, we can quote for service penetrations. Just outside The Moor, we also work in Hawkhurst (1 mile north-east), Little Conghurst (1 mile east), Pipsden (1 mile north-east), Four Throws (1 mile east) and Beal's Green (1 mile north). Bigger towns within reach include Royal Tunbridge Wells (12 miles north-west), Tonbridge (15 miles north-west), Paddock Wood (11 miles north-west), Tenterden (8 miles east), Southborough (13 miles north-west) and Park Wood (14 miles north).

Landmarks near The Moor

We work on buildings around Collingwood Nature Reserve, The Eight Bells Hotel and Hawkhurst Church of England Primary School and the streets around them. For rail, the closest station is Etchingham station, roughly 3.3 miles south-west. Nearby you will also find Ticehurst House Hospital (4.6 miles west).

Map of The Moor © OpenStreetMap contributors

Maintenance after handover

Cleaning and maintenance staff play a part too. Share these points with them:

  • Include service cupboards in routine inspections
  • Check with the data sheet before painting over fire sealant
  • Keep general-purpose fillers away from compartment walls
  • Treat an open penetration as a priority repair

Never top up a fire seal with foam, ordinary silicone or filler. A repair should use the original product, installed the same way, or a new specification from the designer.

A simple record of seal locations and products helps. It tells the next contractor exactly what to reinstate, and it helps at inspections.

When to bring in a specialist

A short, simple internal joint is often within reach of a maintenance team. Where it goes wrong is preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.

The visible bead is only part of the job. Backing rod, primer where specified and a joint designed to move with the building are easy to get wrong without experience.

Accreditations

Trusted. Accredited. Insured.