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

Fire-rated sealing and fire stopping in Worth, Kent

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

  • Unsealed penetrations discovered above suspended ceilings
  • Fire sealant pulled out of the opening
  • Damaged fire seals in risers and voids
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
London, the South East & Scotland
Constructionline member
£5m PL insurance

Fire stopping across Worth

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

Fire stopping in Worth

On a fit-out or refurbishment, we follow the services contractors floor by floor. We work from your penetration schedule or marked-up drawings. Tell us what records you need and we’ll confirm with the quote. We work on service gaps in risers, small duct penetrations where the tested detail allows and joints between fire-resisting walls and floors, and the failures we are asked to look at most are hidden openings found during inspections and expanding foam used as fire stopping. Whoever orders the work in Worth, the brief is typically the same: a clear scope, tidy work and joints that don’t fail again.

Barn and farm-building conversions near places like Worth 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.

Work we carry out comes with a 12-month guarantee. Should something we installed fail, phone 01277 525 020 or send details through our quote form and we’ll come back to it.

Mastic Doctor team members lined up next to their branded vans outside an office building
Location
Worth (CT14)
Region
Kent
Guarantee
12 months on our workmanship
Quotes
Fixed quote, scope in writing
Call
01277 525 020
Updated
3 November 2026

Worth: questions and answers

Do you cover business parks and estates near Worth, such as Birnham Farm Business Centre?

Yes. Estates, retail parks and business parks around Worth, Birnham Farm Business Centre among them, are all within reach. Photos and a short description are enough for a first look.

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

Approved Document B loses its BS 476 references from 2 September 2029, and BS EN 13501-2 becomes 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 you take on multi-site work?

Yes. We take on portfolio and planned maintenance work, planned site by site to suit how each building is used.

How many days will you need on site?

The duration is planned around your programme and the access we’re given. We’ll give you an estimate of time on site when we quote.

How do we ask for a quote?

You can use the quote form on this site; alternatively, ring 01277 525 020 or email drawings and photos. Include photos or drawings if you have them.

Are you CHAS accredited?

Yes. We’re CHAS accredited and a Constructionline member.

How much does the work cost?

Each job is quoted on its own details. To get one, call the office on 01277 525 020 or use the quote form.

Doing it in-house

Certain joints really need a specialist: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. Getting these wrong normally costs more in the end than doing them right.

Using site staff can make sense for a small touch-up, but larger jobs are different: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.

On site: what to expect

On arrival, we report to your site contact and complete whatever induction the building runs. Everything around the joints gets protected before anything is cut or cleaned, with the work itself typically taking longer where risers, ceiling voids or occupied floors have to be worked through in sequence. Jobs in and around smaller places like Worth are usually planned as a single visit, so photos and measurements up front really help. That way the right products come on the day.

  1. We start with your penetration schedule, drawings or specification.
  2. Access, permits and the order of areas are agreed with the site team.
  3. We compare every service penetration with its tested detail before sealing.
  4. Unsuitable material is removed and the opening cleaned.
  5. The specified backing and sealant go in to depth and are finished neatly.
  6. Anything outside the detail is reported to you rather than sealed.

What we need from you

  • For older buildings, check the asbestos register before work
  • Agree which areas must stay open
  • Flag any permit to work we’ll need

Ask for a quote

Quotes are fixed against the scope you send, so you know the figure before anyone is on site. To start the process, call 01277 525 020 or email a schedule or drawings.

Ask for a quote

Read more

Why act early in Worth

Inspections and handover checks often pick up fire stopping. Late discoveries can delay handover while openings are reopened and resealed, so earlier action pays back. Around Worth, it’s better to renew all the failing joints at once. Send photographs of each area and we will quote for the lot.

The work involved drives the cost: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a fixed quote.

Why choose Mastic Doctor in Worth

  • Work to your specification and the manufacturer’s guidance
  • One phone line for London, the South East and Scotland
  • Failed material removed, not covered up
  • Sealing commercial buildings since 2005

Read our cost guide and our accreditations.

Signs you need fire stopping in Worth

Plenty of openings were simply never closed because they sat out of sight above a ceiling or inside a riser. Inspections, refurbishments and ceiling access normally bring them to light.

Site and facilities staff are often the first to spot these:

  • Unsealed openings around new pipes and cables
  • Old intumescent sealant that has split away
  • Unsealed penetrations discovered above suspended ceilings
  • Penetration schedules that need working through

For a hospital such as Ramsgate General Hospital, 6 miles to the north-east of Worth, penetration sealing is usually phased ward by ward, with infection-control rules agreed first.

Comparing quotes

  • How long is the guarantee, and what does it include?
  • Their pre-qualification and accreditations
  • Their plan for phasing and protecting the area
  • Do they follow the manufacturer’s priming guidance?

Questions to ask before you appoint anyone

Different surfaces, different methods

Drylining partitions

Holes in board are often cut larger than needed. An oversized hole may be outside the sealant’s range, and the detail may call for board patching or another product.

Masonry and concrete

Core-drilled holes are neat; broken-out ones rarely are. The gap is measured at the widest point so we know it sits within the tested range, and any outside it are raised with you.

Fire stopping around Worth: what changes locally

Worth lies roughly 64 miles out from central London. Office refits around the commuter belt bring new cabling through fire-resisting walls, and the gaps need sealing with the specified product. For England, the fire stopping of penetrations is dealt with in Approved Document B. 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. Our part stays the same: the specified product, installed to its tested detail.

In a hotel such as The Fleur De Lys Hotel (1.4 miles north of Worth), new pipework or cabling through bedroom and corridor walls needs sealing with the specified product. In a school such as Worth Primary School, fire-rated sealant goes in around service penetrations where it is specified.

Worth is about 3 miles north-west of Deal, in Kent. Commercial clients in Worth can call on us for service penetrations. Our Kent coverage takes in 931 places, from busy centres to rural villages. We also cover London, some 64 miles away.

Work on service penetrations is covered throughout CT14. Among the streets we cover are The Street, Temple Way and St Crispin Close. Just outside Worth, we also work in Felderland (1 mile west), Ham (1 mile south-west), Hacklinge (1 mile south-east), Statenborough (1 mile west) and Sandwich (1 mile north). A short drive away, we cover Canterbury (12 miles west), Margate (9 miles north), Dover (8 miles south), Folkestone (14 miles south-west), Ramsgate (6 miles north-east) and Broadstairs (8 miles north-east).

Near you in Worth

Locally, jobs take us to sites close to Sandwich Technology School, The Blue Pigeons pub and Ham Fen. Worth’s nearest station is Sandwich station, about 1.1 miles north of the centre. A little further out are Sandown Castle (2.7 miles south-east) and The Precinct Toy Collection (1.5 miles north). The countryside around Worth includes Monk's Wall nature reserve.

Map of Worth © OpenStreetMap contributors

What we can’t put right

Part of a good diagnosis is knowing where sealant stops. You’ll hear from us if the cause turns out to be one of these:

  • Large openings beyond what any sealant detail covers
  • Fire risk assessments, a job for a competent assessor
  • Walls or floors that aren’t fire-resisting to begin with

If in doubt, phone 01277 525 020 or send details through our quote form and we will say what we think.

Where we work in Worth

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

Trusted. Accredited. Insured.