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

Fire-rated sealing and fire stopping in Poundsbridge, Kent

Fire stopping for Poundsbridge, from a contractor working since 2005. Fully insured and CHAS accredited.

  • Head-of-wall gaps with no fire seal
  • Snag lists that include open service penetrations
  • Openings found when ceilings come down for a refit
1
Send details
Tell us about the site, with photos if you have them.
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
Signed off, with 12 months’ guarantee.
South East, London & Scotland
CHAS & Constructionline
£5m public liability

Fire stopping for Poundsbridge sites

Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.

Fire stopping in Poundsbridge, done properly

Most of our fire stopping work happens after the building is up. Each new cable, pipe or data route cut through a fire-resisting wall leaves an opening behind, and they are easy to forget. Those on your schedule are closed with the specified product. We work on small duct penetrations where the tested detail allows, joints between fire-resisting walls and floors and service gaps in risers, and the failures we are asked to look at most are fire sealant pulled out of the opening and penetration schedules that need working through. One point of contact handles commercial sealant work in Poundsbridge from the first photographs to the final walk-round, whether it’s one building or several.

For a smaller site near Poundsbridge, we plan to do all the penetrations in one go, so send the specification and photos first. We install to the specification and the manufacturer’s guidance, leaving design and sign-off with the designer and building control.

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.

Mastic Doctor team members lined up next to their branded vans outside an office building
Where
Poundsbridge (TN11)
Region
Kent
Cover
A 12-month guarantee
Price
Quoted before any work starts
Phone
01277 525 020
Page updated
3 November 2026

Different surfaces, different methods

Linear joints

Joints at the top of partitions may need to move as the slab above deflects. We use the product and backing the detail names for that movement, with no gaps along the run.

Drylining partitions

Service holes through plasterboard are frequently oversized or ragged. If the gap exceeds the tested range, sealant alone won’t do and we will tell you what the detail says instead.

Your questions answered

Do you cover business parks and estates near Poundsbridge, such as Speldhurst Business Park?

Yes. Our area takes in Poundsbridge and its surroundings, with estates and business parks such as Speldhurst Business Park included. To start, just ring 01277 525 020 or email us with the unit, the joints involved and your access times.

How does the move away from BS 476 affect penetration seals in Poundsbridge?

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. The designer or fire engineer sets the specification, and we install the product to the manufacturer’s tested detail.

Do your applicators hold CSCS cards?

Yes. We use CSCS-carded applicators, as many construction sites ask for.

How soon can the area be used again?

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

How do you choose the sealant?

A specification, where there is one, decides it. If there isn’t one, it comes down to the joint: how much it moves, what it bonds to and whether it’s wet, trafficked or fire-rated.

Can one quote cover more than one building?

Yes. Several buildings can share a single quote, with one point of contact.

How do I request a quote?

There are four steps: send details, receive a fixed quote, we carry out the work, and it’s guaranteed. The first step only needs photos and a postcode.

On site: what to expect

The first thing on site is a walk round with your contact, to confirm the scope, the order of work and any areas we must keep clear. After that, any old or failed material is removed, each joint is prepared and the new sealant goes in. If others near Poundsbridge need work, visits can be combined, which keeps travel down. You’ll have a fixed quote before work starts.

  1. We ask for the product and detail your designer has specified.
  2. We sort the openings by the detail each one needs.
  3. Old or wrong materials are cut out.
  4. Mineral wool or other backing is fitted where required.
  5. Fire-rated or intumescent sealant goes in around the services and is tooled off.
  6. Completed areas are checked with you, with the records agreed when we quoted.

What we need from you

  • Share your working hours and any access restrictions
  • Send any specification or drawings in advance
  • Tell staff and tenants when we will be in

Getting a fixed quote

Send us photographs, drawings or a joint schedule are often enough for a fixed quote. If the job needs a look first, we’ll arrange a site visit.

Get a quick quote

Read more

When it isn’t the sealant

Our job is the joint, not everything around it. On its own, sealant can’t deal with:

  • Fire risk assessments, a job for a competent assessor
  • Writing the fire-stopping specification
  • Walls or floors that aren’t fire-resisting to begin with

Not sure which it is? You can phone 01277 525 020 or email the details over and we will tell you honestly.

Where we work in Poundsbridge

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

Penetration seals near Poundsbridge

At about 27 miles from central London, Poundsbridge is within reach of the capital. Business park offices in the commuter belt are refitted as tenants change, and each fit-out adds services through compartment walls. Fire stopping of openings and penetrations in England falls under Approved Document B. 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. What we install is set by the specification, and it goes in to the tested detail.

In a building such as All Souls Chapel, any service penetration through a fire-resisting wall should be sealed to the specified detail. Hospital estates such as Kent and Sussex Hospital, 2.8 miles to the south-east of Poundsbridge, are divided into fire compartments, and any service penetration through them should be sealed to the specified, tested detail.

Poundsbridge is about 3 miles north-west of Royal Tunbridge Wells, in Kent. Businesses, contractors and managing agents in Poundsbridge use us for work on service penetrations. We work across 931 places in Kent, large and small. Sites around Brighton have their own page, about 26 miles away.

Postcode districts covered here: TN11 for service penetrations. Among the streets we cover are Penshurst Road and Poundsbridge Hill, and sites on any of them can send details for a fixed quote. Just outside Poundsbridge, we also work in Bullingstone (1 mile south-east), Speldhurst (1 mile east), Printstile (1 mile north-east), Stockland Green (1 mile east) and Langton Green (2 miles south). Bigger towns within reach include Sevenoaks (9 miles north), Royal Tunbridge Wells (3 miles south-east), Tonbridge (5 miles north-east), Kings Hill (12 miles north-east), Paddock Wood (8 miles east) and Edenbridge (7 miles north-west).

Landmarks near Poundsbridge

Locally, jobs take us to sites close to Bennett Memorial Diocesan School and The George And Dragon pub and the streets around them. The nearest railway station is Ashurst Kent station, roughly 2.8 miles south-west. A little further out are Chiddingstone Castle (3.4 miles north-west) and Kent and Sussex Hospital (2.8 miles south-east). Open spaces near Poundsbridge include Broadwater Warren RSPB Reserve and Barden Lake.

Map of Poundsbridge © OpenStreetMap contributors

Maintenance after handover

For the best life from the joints:

  • Have penetrations checked while they can still be seen
  • Check with the data sheet before painting over fire sealant
  • Record which product was used where
  • Flag new cables with no seal around them

Add risers, plant rooms and ceiling voids to routine fire-stopping checks. Watch for cracked sealant, new services with no seal and openings that have grown.

The simplest way to keep compartment walls intact is to plan fire stopping into every job that crosses them. Then the seal goes in while the area is open.

Work for main contractors and building owners

If you look after buildings for someone else, clear figures and clear communication matter. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative.

We work for building owners and managing agents on sealant work across single buildings or whole portfolios around Poundsbridge. Several sites can go on one quote, so there’s one set of paperwork to deal with.

When to call us in Poundsbridge

Mixing products or improvising a detail breaks the link with the test evidence. Gaps beyond the tested size, shallow sealant, no backing where it was needed, or products from different systems mixed together are what we find most often.

Clients usually get in touch after noticing something like this:

  • Hidden openings found during inspections
  • Old intumescent sealant that has split away
  • Penetration schedules that need working through
  • Unsealed openings around new pipes and cables

At a university such as Canterbury Christ Church University - Salomons, which lies east of Poundsbridge, labs, lecture blocks and residences are re-serviced often, so penetration seals are best checked after M&E work.

Comparing quotes

  • The named product and why it was chosen
  • Whether their applicators hold CSCS cards
  • Can the work be phased to keep areas open?
  • Do they follow the manufacturer’s priming guidance?

Questions to ask before you appoint anyone

Accreditations

Trusted. Accredited. Insured.