Fire-rated sealing and fire stopping in Bromley, Hertfordshire
Fire stopping in Bromley, backed by over 20 years in commercial sealing. Fully insured, with a 12-month guarantee.
- Unsealed joints where partitions meet the slab
- Snag lists that include open service penetrations
- Fire-rated sealant that has cracked or shrunk back
Fire stopping for businesses in Bromley
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Fire stopping for commercial buildings in Bromley
Where pipes, cables and other services cross a compartment wall or floor, the opening around them has to be closed so fire and smoke can’t move between compartments. 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. We work on pipe penetrations, cable penetrations and linear gaps at wall heads, and the failures we are asked to look at most are old intumescent sealant that has split away and unsealed joints where partitions meet the slab. A single leaking joint is often how a building in Bromley first comes to us: we check the joints around it and give you an honest view of what needs doing now and what can wait.
For a smaller site near Bromley, we plan to do all the penetrations in one go, with the specification and photos sent in advance. Design and sign-off belong to the designer or building control; we install what’s specified.
Our workmanship is guaranteed for 12 months, in Bromley as everywhere else we work. If a joint we sealed fails because of how it was installed, we come back and put it right.
- Location
- Bromley (SG11)
- Wider area
- Hertfordshire
- Guarantee
- 12 months on every job
- Price
- A fixed quote before we start
- Telephone
- 01277 525 020
- Last updated
- 3 November 2026
When to bring in a specialist
A short, simple internal joint is often within reach of a maintenance team. 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.
Paperwork matters too. Many sites expect CSCS cards, RAMS and proof of insurance, and our CSCS-carded applicators are used to working under those rules.
Nearby places to Bromley
What else we do in Bromley
Compartments and services around Bromley
For England, the fire stopping of penetrations is dealt with in Approved Document B. References to the older BS 476 classes are being removed from it from 2 September 2029, after which the European classification, BS EN 13501-2, is the route, subject to transitional arrangements. Either way, we install the specified product to its tested detail. Bromley is about 27 miles from central London. Offices around the capital are refitted often, and the cabling that follows can breach fire-resisting walls; the gaps need the specified seal.
On a site such as Standon Business Park, 1.4 miles to the north-west of Bromley, every fit-out that runs new services through a compartment wall leaves penetrations to seal with the specified product.
Bromley is about 4 miles west of Bishop's Stortford, in Hertfordshire. Any commercial site in Bromley is covered, for single jobs and planned programmes alike. Bromley is one of 371 places in Hertfordshire on our list. We also cover London, around 27 miles from Bromley.
Postcode districts covered here: SG11. Just outside Bromley, we also work in Standon (1 mile north-west), Hadham Ford (1 mile east), Much Hadham (1 mile south-east), Puckeridge (2 miles north-west) and Hadham Cross (2 miles south). Further afield, our area takes in Stevenage (10 miles west), Bishop's Stortford (4 miles east), Welwyn Garden City (12 miles south-west), Hitchin (15 miles west), Hoddesdon (9 miles south) and Cheshunt (12 miles south).
Local landmarks in Bromley
In Bromley, that means premises near The Fox And Hounds pub, among other places. The nearest railway station is Bishops Stortford station, about 4.8 miles east of the centre. Nearby you will also find Henry Moore Studios and Gardens (2.8 miles south-east) and Moated mound (2.7 miles north-east).
When it isn’t the sealant
Some faults sit outside our scope, and we point that out rather than sealing over them:
- Plastic pipes whose detail calls for a collar or wrap
- Writing the fire-stopping specification
- Walls or floors that aren’t fire-resisting to begin with
If you’re not sure, just call 01277 525 020 or email the details over and we’ll give you a straight answer before you book.
Where we work in Bromley
- Pipe penetrations
- Service gaps in risers
- Joints between fire-resisting walls and floors
- Cable penetrations
- Small duct penetrations where the tested detail allows
- Linear gaps at wall heads
Different surfaces, different methods
Metal pipes
Copper and steel pipes are a common service penetration for fire-rated sealant. The tested detail sets the pipe size range, gap, depth and whether insulation can stay on.
Small ducts
Some fire-rated sealant details cover small ducts. Bigger ducts and fire-resisting ductwork are normally handled with other products, and we will say if that applies.
On site: what to expect
At the end of each section, we remove the tape, clean down and inspect every joint, ready for your sign-off. If an area should be left alone while the sealant cures, we say how long and put signs out. For work around Bromley, we aim to finish in one visit, so we ask for photographs and rough sizes first. Then the right materials arrive with us.
- We start with your penetration schedule, drawings or specification.
- Access, permits and the order of areas are agreed with the site team.
- Each opening is checked for wall or floor type, service, gap and depth.
- Unsuitable material is removed and the opening cleaned so the seal starts clean.
- 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
- Send your site hours and access windows
- Let us know about inductions and permits
- Point out any areas we must not close
Getting a fixed quote
We quote a fixed sum against the scope you give us, so the cost is agreed before work starts. To ask for one, call 01277 525 020 or email a schedule or drawings.
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Questions about Bromley
How does the move away from BS 476 affect penetration seals in Bromley?
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.
Can you work on a hospital site such as Herts and Essex Hospital?
Yes, healthcare and care buildings are part of our work. Before anything starts, the estates team agrees permits, inductions and infection-control measures with us.
Are you fully insured?
Yes. Our insurance certificate can be sent alongside the quote.
Do you cover Bromley?
Yes. We cover Bromley and the rest of Hertfordshire. For a quote, speak to us on 01277 525 020 or send details through our quote form.
When can the area be used after sealing?
That comes down to the sealant and the temperature. Some products skin over quickly but need longer to cure fully, so we’ll confirm the curing time on the day.
How long does a job like this take?
It depends on the scope, but the work typically takes anything from one day to a planned run of visits, depending on the number of seals and the access. For bigger or phased jobs, we’ll set out a timescale with the quote.
Can staff carry on working while you are here?
Yes, as long as we plan it. We agree a sequence with your contact so just one area at a time is disrupted.
What happens if it’s left?
It is cheaper to seal service penetrations as each services package finishes than to come back for them later. Openings are visible, access is open and nothing has to be taken down, and the right detail can be checked at the time. One visit to deal with every failing joint makes more sense than several trips to a place like Bromley, rather than one at a time. Send photographs of each area and we will quote for the lot.
No two sites price the same: the joint sizes, the specified product, access and working hours each have a bearing. Send the details and a fixed figure follows.
Why appoint us
- Fixed quotes based on photos, drawings or a visit
- Fully insured
- A Constructionline member, so easy to vet
- Work to your specification and the manufacturer’s guidance
Take a look at what affects the cost and our accreditations and insurance.
Common problems we fix in Bromley
Some seals fail because the wrong product went in: builders’ foam or ordinary silicone used to fill a hole. The opening looks sealed but has no fire test evidence behind it and has to be removed.
Site and facilities staff are often the first to spot these:
- Penetration schedules that need working through
- Unsealed penetrations discovered above suspended ceilings
- Damaged fire seals in risers and voids
- Openings left by services added after handover
For a hospital such as Herts and Essex Hospital, 5.2 miles to the east of Bromley, penetration sealing is typically phased ward by ward, with infection-control rules agreed first.
What your quote should include
- Whether old or failed sealant will be cut out, not overlaid
- Which product they’ll use, and why it suits the joint
- Will RAMS and insurance details be available?
- How long is the guarantee, and what does it include?