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

Fire-rated sealing and fire stopping in Coxheath, Kent

Fire-rated and intumescent sealing of service penetrations and linear gaps across Coxheath, by CSCS-carded applicators. CHAS accredited and fully insured.

  • Damaged fire seals in risers and voids
  • Snag lists that include open service penetrations
  • Non-fire-rated filler around services
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
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
12-month guarantee on our workmanship.
London, the South East & Scotland
CHAS & Constructionline
£5m PL insurance

Need fire stopping in Coxheath?

Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.

Fire stopping in Coxheath, done properly

Fire-rated sealant suits many small service penetrations: copper and steel pipes, cables and some small ducts where the tested detail allows. Other openings need collars, wraps, batts, pillows or boards. If the detail calls for something other than sealant, we say so rather than force sealant into it. We work on joints between fire-resisting walls and floors, linear gaps at wall heads and pipe penetrations, and what we are called in for most is open linear gaps along the top of fire-resisting walls and fire-stopping items raised at inspection or handover. Most enquiries from Coxheath start with one failed joint and grow into a wider look at the building: we look at the rest while we’re there and tell you what we find.

Converted and extended buildings around places like Coxheath can mix old and new construction, so it’s worth confirming the wall or floor type before choosing the seal. The right product depends on the wall or floor and the services passing through, and we’ll tell you if the detail calls for something other than sealant.

What our 12-month guarantee covers is the way we did the job: the preparation, the sealing and the tooling. It doesn’t extend to damage, other trades’ later work or movement the joint was never designed to take.

Mastic Doctor team members lined up next to their branded vans outside an office building
Location
Coxheath (ME17, ME15)
Region
Kent
Guarantee
12 months on every job
Price
Quoted before any work starts
Call
01277 525 020
Last updated
3 November 2026

Common questions from Coxheath clients

Can work at a site such as University for the Creative Arts - Maidstone fit around teaching?

Yes. We plan campus work around teaching, exams and residence turnarounds. Tell us which site documents you need, such as RAMS, our insurance certificate or CSCS details, and they’re confirmed with the quote.

Is Coxheath off your patch?

No. Small places get the same service as large ones. Our area covers London and the South East counties. Where we can, we group nearby jobs to make the most of each trip.

Can you follow the specification on our project?

Yes. We follow the specification, along with the manufacturer’s installation guidance.

Are you members of a third-party fire-stopping installer scheme?

No. We are not members of a third-party fire-stopping installer scheme. Our credentials are CHAS accreditation, Constructionline membership and CSCS-carded applicators, and we are fully insured. Where a client or main contractor requires a scheme member, we will say so right away rather than waste your time.

Do you take on multi-site work?

Yes. Several buildings can share a single quote, and you deal with one contact throughout across South East England, Greater London and Scotland.

Can you fire stop behind the services contractors?

Yes, provided a specification covers them. New services after M&E works often breach existing seals.

What site paperwork can you supply?

Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we will confirm with the quote.

Fire stopping around Coxheath: what changes locally

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. Our part stays the same: the specified product, installed to its tested detail. Central London is about 31 miles from Coxheath. Business park offices in the commuter belt are refitted as tenants change, and each fit-out adds services through compartment walls.

Workshops and IT rooms at colleges like Kent Police College (to the east of Coxheath) are re-serviced often, leaving penetrations to seal. On a site such as Tovil Green Business Park (1.9 miles north of Coxheath), every fit-out that runs new services through a compartment wall leaves penetrations to seal with the specified product.

Coxheath is about 3 miles south-west of Maidstone, in Kent. Coxheath sits inside our coverage, with the same fixed quotes and 12-month guarantee as everywhere else. We work across 931 places in Kent, from busy centres to rural villages. There’s a separate page for London, about 31 miles away.

Anyone looking for fire stopping in ME17 and ME15 gets the same process as the rest of our area: send details, get a quote, we seal, guaranteed. Buildings on Westway, Stockett Lane and Orchard Close are within our area for service penetrations. If your building is just outside Coxheath, we cover Dean Street (1 mile north), East Farleigh (1 mile north-west), Farleigh Green (2 miles north-west), Kettle Corner (2 miles north-west) and Hunton (2 miles south-west). A short drive away, we cover Maidstone (3 miles north-east), Sittingbourne (13 miles north-east), Sevenoaks (14 miles west), Royal Tunbridge Wells (12 miles south-west), Gravesend (14 miles north) and Tonbridge (10 miles west).

Landmarks near Coxheath

We work on buildings around The Horse Shoes Public House, Cornwallis Academy and Quarry Wood. For rail, the closest station is East Farleigh station, about 1.5 miles north of the centre. Nearby you’ll also find The Mall Maidstone (3 miles north-east) and Oakwood Hospital (2.4 miles north).

Map of Coxheath © OpenStreetMap contributors

On site: what to expect

We begin with a short walk round with whoever looks after the building, to confirm the scope, the order of work and any areas we must keep clear. Then we strip out anything that has failed, prepare every joint and seal it. What matters most for a job in Coxheath is a clear list of what needs doing, so send photographs of each area. You will then get a fixed price for the work.

  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. Each opening is checked for wall or floor type, service, gap and depth.
  4. Foam, ordinary sealant and debris come out.
  5. Backing and fire-rated sealant are installed to the detail and tooled.
  6. Anything outside the detail is reported to you rather than sealed.

Getting the site ready

  • Arrange parking or a loading space
  • Let us know about inductions and permits
  • Tell staff and tenants when we’ll be in

Getting a fixed quote

Send details, get a quote, we seal, guaranteed: that’s how every job runs. To take the first step, speak to us on 01277 525 020 or email a schedule or drawings.

Ask for a quote

Read more

Should maintenance staff do it?

For a quick touch-up, site staff may be fine, but larger jobs are different: a specialist brings efficiency, a consistent finish and a 12-month guarantee.

Site maintenance staff can often handle a short internal joint. The usual problems come from preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.

Quoting for work in Coxheath

What shapes the price:

  • How much there is to seal
  • The product specified
  • Distance, for remote addresses
  • Phasing around occupants

Small jobs and large programmes are priced from the same things: what’s in scope, how we reach it, what’s specified and when it needs doing. Call for a quote, and you’ll have a fixed figure to work with.

Before you send an enquiry

We can often quote from photos and a few details. It helps to include:

  • A wide shot and a close-up of the area
  • The product your specification calls for
  • Anything awkward about access or site hours
  • Approximate linear metres or a joint schedule

A good quote starts with a clear picture: the joints involved, quantities, access and the product called for. Share whatever details you have and we’ll fill any gaps with a visit.

Signs you need fire stopping in Coxheath

Openings in fire-resisting walls normally appear when services are added or changed. New cabling, rerouted pipework or a data route drilled through a riser leaves an opening that nobody returns to. Across several fit-outs, the openings add up.

Clients typically get in touch after noticing something like this:

  • Old intumescent sealant that has split away
  • Head-of-wall gaps with no fire seal
  • Seals disturbed by maintenance and left open
  • Fire stopping installed outside its tested range

Wherever services are added at a hospital such as Maidstone Hospital (to the north of Coxheath) the compartment line has to be made good with the specified product.

What your quote should include

  • Will failed sealant be removed rather than covered?
  • Their pre-qualification and accreditations
  • Which product they’ll use, and why it suits the joint
  • The terms of the workmanship guarantee

Questions to ask before you appoint anyone

Why it’s worth doing now in Coxheath

An open or wrongly sealed service penetration lets fire and smoke reach the next compartment much sooner than the building was designed for. While the openings can be reached, sealing them is normally straightforward. Left until ceilings are closed or a tenant moves in, the same work costs more access and more disruption. In a smaller place such as Coxheath, getting a contractor back for a second visit takes time, so we’d suggest renewing all the joints that are going, not just the worst.

Every site prices differently: joint size, product, access and site hours all play a part. A fixed quote follows once we understand the job.

Why us?

  • Products installed to the manufacturer’s instructions
  • Over 20 years of commercial sealing
  • CHAS accredited
  • 12 months’ guarantee on every job

Take a look at what affects the cost or our accreditations and insurance.

How the job changes by surface

Small ducts

We seal around ducts only within what the tested detail covers. The ductwork, its supports and any dampers are for the ductwork contractor.

Drylining partitions

Holes in board are often cut larger than needed. If the gap exceeds the tested range, sealant alone won’t do and we’ll tell you what the detail says instead.

Accreditations

Trusted. Accredited. Insured.