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

Fire Stopping in East Peckham

Fire-rated and intumescent sealing of service penetrations and linear gaps in East Peckham and across Kent. CHAS accredited and fully insured, with a 12-month guarantee.

  • Openings found when ceilings come down for a refit
  • Fire-rated sealant that has cracked or shrunk back
  • Open linear gaps along the top of fire-resisting walls
1
Send details
Send the specification, photos or a marked-up plan.
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
Signed off, with 12 months’ guarantee.
South East, London & Scotland
CHAS & Constructionline
£5m public liability

Fire stopping for businesses in East Peckham

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

Diagnose, treat, sign off

Diagnose, treat, sign off: every visit follows that pattern. We inspect the joints and confirm what’s in scope, then the work is carried out to the specified product and detail, and the job ends with a walk round and sign-off. Jobs in and around smaller places like East Peckham are typically planned as a single visit, so photographs and measurements up front really help. That way the right products come on the day.

  1. First we go through the drawings, schedule or specification for the seals and raise any questions before we price.
  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. Mineral wool or other backing goes in wherever the detail asks.
  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.

Before we start on site

  • Send asbestos survey details if the building is pre-2000
  • Tell us your opening times and when work is allowed
  • Let us know about inductions and permits

Get a fixed quote

Send us photos, drawings or a joint schedule are often enough for a fixed quote. Where a site visit makes more sense, we will arrange one.

Get a quick quote

Advice

Fire stopping in East Peckham, done properly

Penetration seals are fire tested to BS EN 1366-3 and linear joint seals to BS EN 1366-4, with results classified under 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. If you have penetration schedules that need working through and fire-rated sealant that has cracked or shrunk back, we can help, on cable penetrations, service gaps in risers and pipe penetrations alike. Facilities teams, main contractors and managing agents in East Peckham tend to want the same three things: a clear scope, tidy work and joints that don’t fail again.

Smaller places such as East Peckham still have buildings with fire-resisting walls and floors: schools, halls, care homes and commercial conversions. If sealant is what the specification names, we install it around the services exactly as the maker’s detail sets out.

Work we carry out in Kent comes with a 12-month guarantee. If an installation problem shows up, phone 01277 525 020 or send photos by email and we’ll arrange a return visit.

The Mastic Doctor team beside their liveried vans in front of an office building
Location
East Peckham (TN12)
Wider area
Kent
Guarantee
A 12-month guarantee
Price
Quoted before any work starts
Phone
01277 525 020
Last updated
3 November 2026

Fire-rated sealing for East Peckham buildings

Approved Document B is the English guidance that covers fire stopping around 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. What we install is set by the specification, and it goes in to the tested detail. Central London is about 29 miles from East Peckham. Business park offices in the commuter belt are refitted as tenants change, and each fit-out adds services through compartment walls.

Older community buildings such as Church of the Holy Trinity that have been rewired or given new heating can have service gaps through walls worth checking against the specification. On a hospital site such as Tonbridge Cottage Hospital (5.4 miles south-west of East Peckham), fire-rated sealant goes in where the specification calls for it, with the work planned around the estates team’s permits.

East Peckham is about 5 miles east of Tonbridge, in Kent. East Peckham sits inside our coverage and the rest of Kent, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. East Peckham is one of 931 places we cover in Kent for service penetrations. London is covered too, some 29 miles away.

Anyone looking for fire stopping in TN12 gets the same process as the rest of our area: details, then a fixed price, then sealing and a 12-month guarantee. If your site is on Coults Close, Brunswick Close and Fell Mead or close by, we can quote for service penetrations. Just outside East Peckham, we also work in Snoll Hatch (1 mile south-west), Branbridges (1 mile east), Hale Street (1 mile north-east), Peckham Bush (1 mile north) and Little Mill (1 mile south-west). Nearby towns on our patch include Maidstone (7 miles north-east), Sevenoaks (10 miles north-west), Royal Tunbridge Wells (7 miles south-west), Gravesend (15 miles north), Tonbridge (5 miles west) and Northfleet (15 miles north).

Landmarks near East Peckham

In East Peckham, that means premises near The Merry Boys pub, among other places. The closest station to East Peckham is Beltring station, roughly 1 mile south-east of the centre. Nearby you will also find Tonbridge Cottage Hospital (5.4 miles south-west) and The Hop Farm Museum (1.2 miles south). For a walk, there’s Tudeley Woods RSPB reserve.

Map of East Peckham © OpenStreetMap contributors

Common problems we fix in East Peckham

Damage plays a part too. Maintenance work can knock a seal, cut it back for an extra cable or remove it with an old pipe, and the repair is often skipped.

Look out for the following:

  • Fire-rated sealant that has cracked or shrunk back
  • Non-fire-rated filler around services
  • Penetration schedules that need working through
  • Openings left by services added after handover

Schools such as East Peckham Primary School often have new data and services installed during holidays, and penetrations through fire-resisting walls should be checked afterwards.

Questions to ask before you book

  • Their plan for phasing and protecting the area
  • How joint depth will be controlled
  • The terms of the workmanship guarantee
  • Whether old or failed sealant will be cut out, not overlaid

Choosing a commercial sealant contractor

When it isn’t the sealant

Sealant solves a lot, but not everything, and we are upfront when that’s the case. These need a different solution:

  • Openings that need collars, wraps, batts or boards rather than sealant
  • Gaps in walls that were never built as compartment walls
  • Fire doors, dampers or other fire safety equipment

If in doubt, speak to us on 01277 525 020 or email drawings and photos and we will say what we think.

Where we work in East Peckham

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

Keeping the joints sound

Keep the joints in good shape with a few simple steps:

  • Keep product data and details in the fire safety file
  • Put resealing into every M&E and fit-out package
  • Ask the designer to confirm details early on refits
  • Have penetrations checked while they can still be seen

Never top up a fire seal with foam, ordinary silicone or filler. Repairs need the same product and detail as the original.

Write fire stopping into the scope of any work crossing a compartment wall or floor. That way the opening is sealed while the trade and access are still there instead of being left for someone else.

Doing it in-house

The visible bead is only part of the job. Correct depth, the right primer and a sealant matched to the movement are easy to get wrong without experience.

There’s also the paperwork. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and our CSCS-carded applicators are used to working under those rules.

FAQs: East Peckham

Can you take on a job at a hospital such as Tonbridge Cottage Hospital?

Yes, provided the work is planned with the site’s estates team. Before anything starts, the estates team agrees permits, inductions and infection-control measures with us.

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

From 2 September 2029, Approved Document B drops its BS 476 references in favour of BS EN 13501-2 classification, with transitional arrangements. Whichever applies, we install the specified product to its tested detail; the specification is for the designer to set.

Do you take on small jobs?

Whatever the size, the process is the same: details, then a fixed price, then sealing, then a 12-month guarantee.

What happens if old sealant might contain asbestos?

Asbestos is possible in some older mastics, particularly in buildings from before 2000. 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. We don’t remove asbestos-containing materials.

Is East Peckham in your area?

Yes. Sites across East Peckham are covered, and the same phone number covers every area.

Do you hold CHAS accreditation?

Yes. We’re CHAS accredited, we’re a Constructionline member and we use CSCS-carded applicators.

How many days will you need on site?

We plan the time on site around your programme and access. We will give you an estimate of time on site when we quote.

What affects the price in East Peckham

We price every job individually. The things that drive the figure:

  • Removal of failed or old sealant
  • Site requirements such as inductions and permits
  • Access and working height
  • Distance, for remote addresses

The specified product makes a difference, and so does the preparation, from cutting out to priming and backing rod. Access, phasing and site requirements come into it too.

Before you send an enquiry

A good diagnosis starts with the right details. Let us know:

  • Any specification or named product
  • The site address and postcode
  • How the joints are reached, and at what height
  • What the building is and how it’s used

To get a fixed quote, call the office on 01277 525 020 or email the details over with the site address and an outline of the work. Our quote form is another easy route.

Accreditations

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