Fire-rated sealing and fire stopping in Brompton, Medway
Fire-rated and intumescent sealing of service penetrations and linear gaps across Brompton, carried out by CSCS-carded applicators. CHAS accredited and fully insured.
- Non-fire-rated filler around services
- Improvised or mixed-product fire seals
- Openings found when ceilings come down for a refit
Need fire stopping in Brompton?
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Our process
Diagnose, treat, sign off: every visit follows that pattern. We inspect the joints and confirm what’s in scope, then we prepare and seal each joint with the specified product, and we finish with a walk round so the work can be signed off. For a site in Brompton, we plan so the whole job is done in one go where possible. Photos with rough sizes let us arrive with everything needed.
- We start with your penetration schedule, drawings or specification.
- Access, permits and the order of areas are agreed with the site team.
- We compare every service penetration with its tested detail before sealing.
- Unsuitable material is removed and the opening cleaned.
- The specified backing and sealant go in to depth and are finished neatly.
- We tell you about openings that need a different product.
What we need from you
- Share your working hours and any access restrictions
- Flag any permit to work we will need
- Have the specification and drawings to hand
Request a quote
Quotes are fixed against the scope you send, so the cost is agreed before work starts. To start the process, call 01277 525 020 or use the quote form.
Related advice
Fire stopping for commercial buildings in Brompton
Every service that crosses a compartment wall or floor leaves an opening, and that opening needs sealing to hold back fire and smoke. Our job is fitting fire-rated and intumescent sealant at those service penetrations, and along linear gaps, where it is the specified product. We work to the product’s tested detail for every seal, not a rule of thumb. Site teams most often ask us about openings left by services added after handover and hidden openings found during inspections, across small duct penetrations where the tested detail allows, linear gaps at wall heads and pipe penetrations. Searching for sealant specialists in Brompton? Mastic Doctor has worked for contractors, FMs and building owners since 2005, CHAS accredited and a Constructionline member.
Fire-rated sealing in a place like Brompton is typically a single building at a time. Send the specification, drawings or photographs of the openings and we’ll quote to suit.
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.
- Place
- Brompton (ME4, ME7, ME2)
- Wider area
- Medway
- Cover
- 12 months on every job
- Price
- A fixed quote before we start
- Call
- 01277 525 020
- Page updated
- 3 November 2026
Questions we’re asked in Brompton
Do you seal service penetrations in hotels around Brompton?
Yes, where the specification calls for fire-rated sealant. Each seal follows the tested detail, and rooms are done in turn.
Can you work on a hospital site such as Medway Maritime Hospital?
Yes. We work in healthcare settings as well as offices and schools. Work is phased so departments keep running, under the site’s own rules.
When is resealing likely to be due?
Nobody can honestly give a figure in years, since movement, weather, cleaning and use all affect it. Regular inspection is the best way to catch problems early.
What’s the quickest route to a quote?
There are four steps: send details, get a quote, we seal, guaranteed. The first step only needs photos and a postcode.
Do you hold CHAS accreditation?
Yes. CHAS accredited, Constructionline member, and our applicators hold CSCS cards.
Can one quote cover more than one building?
Yes. Several buildings can share a single quote, and you deal with one contact throughout.
Can weather delay the job?
It can, when the joints are outside. Sealant won’t bond properly to a wet or frosty joint, so we watch the forecast and rearrange outside work if we have to. Internal work is far less affected.
What we’re called out for in Brompton
Linear gaps fail where a fire-resisting wall meets a slab, soffit or another wall. Deflection and building movement can open these gaps, and a product not tested for that movement may crack. The tested detail for a linear joint states the width and movement it covers.
Typical triggers for a call:
- Seals disturbed by maintenance and left open
- Fire-stopping items raised at inspection or handover
- Open linear gaps along the top of fire-resisting walls
- Unsealed penetrations discovered above suspended ceilings
At a college such as MidKent College Gillingham Campus, which lies north-east of Brompton, checking penetration seals after summer M&E works is good practice.
Before you book anyone
- Whether their applicators hold CSCS cards
- Their public liability cover
- Their plan for phasing and protecting the area
- How long is the guarantee, and what does it include?
Different surfaces, different methods
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.
Cables and cable bundles
Single cables and small bundles are often within a fire-rated sealant’s tested detail. The detail limits bundle size and the gaps between and around cables.
Compartments and services around Brompton
For England, the fire stopping of penetrations is dealt with in Approved Document B. Its BS 476 references are being withdrawn from 2 September 2029, with BS EN 13501-2 classification taking over, subject to transitional arrangements. We install whatever has been specified, to the product’s tested detail. There are seven care or nursing homes within about 2 miles of Brompton. Care homes rely on fire-resisting walls and floors, and maintenance work that breaks through them leaves openings to seal.
For a unit at a site such as Railway Street Industrial Park (1 mile east of Brompton), new power or data runs between office and warehouse can breach a compartment wall. For an estates team at a campus like University of Kent - Medway Campus, 0.5 miles north of Brompton, summer M&E works are normally followed by a round of penetration sealing.
Brompton is about 1 mile east of Rochester, in Medway. Commercial clients in Brompton can call on us for service penetrations. Our Medway coverage takes in 54 places, from busy centres to rural villages. London is covered too, some 28 miles away.
Anyone looking for fire stopping in ME4, ME7 and ME2 gets the same process as the rest of our area: send details, get a quote, we seal, guaranteed. Streets here include Dock Road, Globe Lane and South Road. If your building is just outside Brompton, we cover Chatham Waterfront (1 mile south-west), Rochester Riverside (1 mile west), Frindsbury (1 mile north-west), Luton (1 mile south) and Hale (2 miles south-east). Bigger towns within reach include Rainham (4 miles south-east), Park Wood (4 miles south-east), Lordswood (4 miles south), Twydall (3 miles south-east), Hoo St Werburgh (3 miles north-east) and Wigmore (4 miles south-east).
Local landmarks in Brompton
We work on buildings around King George V Public House, Brompton Academy and Hospital and Medical Tuition Service and the streets around them. You will also find St Michael the Archangel Church (0.8 miles south-west), Great Lines Heritage Park (less than half a mile south-east) and Former Ordnance Store At Chatham Gun Wharf (under half a mile south-west). Brompton’s nearest station is Chatham station, about 0.7 miles south-west. Other landmarks nearby include Medway Maritime Hospital (0.8 miles south-east) and Pentagon Shopping Centre (under half a mile south-west). Not far away are Rede Common and Gad's Hill.
Why act early in Brompton
Inspections and handover checks often pick up fire stopping. Finding unsealed or improvised openings late can hold up a programme which is why earlier is better. For buildings in places like Brompton, one well-planned visit beats several small ones, so we’d suggest renewing all the joints that are going, not just the worst.
There’s no price list, since every building and every scope is different. For a fixed figure, call for a quote and we’ll price your job on its own details.
Why choose Mastic Doctor in Brompton
- A Constructionline member, so easy to vet
- Products installed to the manufacturer’s instructions
- Commercial sealant work since 2005
- Health and safety: CHAS accredited
See what affects the cost and our accreditations and insurance.
Also near Brompton
Other services in Brompton
What sealant work can’t fix
Part of a good diagnosis is knowing where sealant stops. We will tell you if the real problem is any of the following:
- Gaps in walls that were never built as compartment walls
- Reviewing a building’s overall fire safety
- Designing or specifying fire stopping, which sits with the designer or fire engineer
Not sure which it is? You can phone 01277 525 020 or email us and we’ll tell you honestly before you book.
Where we work in Brompton
- Linear gaps at wall heads
- Service gaps in risers
- Cable penetrations
- Joints between fire-resisting walls and floors
- Pipe penetrations
- Small duct penetrations where the tested detail allows
Keeping the joints sound
Your facilities or cleaning team can help the joints last. Share these points with them:
- Settle who seals which penetrations at the start of a project
- Record which product was used where
- Make fire stopping part of every scope that crosses a fire-resisting wall
- Don’t let anyone top up a fire seal with the wrong product
Keep the product data and installation details with the building’s fire safety information. It makes later repairs much easier to match.
Keep a register of where seals are and what they are made of. It tells the next contractor exactly what to reinstate.