The City fire stopping
Fire stopping for The City, from a contractor working since 2005. Fully insured, with a 12-month guarantee.
- Old intumescent sealant that has split away
- Head-of-wall gaps with no fire seal
- Service penetrations left open after M&E works
Fire stopping for The City sites
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
What happens if it’s left?
An unsealed opening affects more than fire safety: smoke, noise and draughts pass through them every day. The specified fire seal closes the gap for all of these. Around The City, it’s better to renew all the failing joints at once. Send photographs of each area and we will quote for the lot.
Access often affects the price as much as the sealing: joints within easy reach take less time than ones that need access equipment. Mention the access as part of your enquiry.
Why appoint us
- Fully insured, including public liability cover
- Constructionline member for supplier checks
- Our applicators hold CSCS cards
- Old sealant cut out, never sealed over
See how commercial sealant jobs are priced or our accreditations.
About our fire stopping in The City
The test standards are BS EN 1366-3 for penetration seals and BS EN 1366-4 for linear joints and the results are classified to BS EN 13501-2. That classification, such as EI 60 or EI 120, belongs to the product in its tested arrangement. Reproducing the tested arrangement on site is the part we take care of. We work on small duct penetrations where the tested detail allows, joints between fire-resisting walls and floors and cable penetrations, and what we’re called in for most is fire seals cut back for extra cables and never reinstated and seals that don’t match their tested detail. A single leaking joint is often how a building in The City 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.
Barn and farm-building conversions near places like The City often combine new partitions with old walls. A penetration seal only performs as tested if product, substrate, service, gap and depth all match the detail.
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.
- Place
- The City (HP14)
- Region
- Buckinghamshire
- Cover
- 12 months on our workmanship
- Quote
- Fixed quote, scope in writing
- Call
- 01277 525 020
- Last updated
- 3 November 2026
Compartment walls and floors in The City
Fire stopping of openings and penetrations in England falls under 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. The City lies roughly 35 miles out from central London. Business park offices in the commuter belt are refitted as tenants change, and each fit-out adds services through compartment walls; the gaps need the specified seal.
Theatres, wards and plant rooms at sites like Wycombe Hospital (5 miles south-east of The City) all have compartment walls crossed by services. Halls and meeting rooms at places like Church of St Paul sometimes gain new services, and any compartment wall crossed needs the specified seal. For a unit at a site such as Junction 5 Bates Industrial Estate (1.7 miles west of The City), new power or data runs between office and warehouse can breach a compartment wall.
The City is about 5 miles north-west of High Wycombe, in Buckinghamshire. Across the HP14 postcode area, the process is the same: details in, fixed quote out, then sealing and a 12-month guarantee. The City is one of 308 places we cover in Buckinghamshire for service penetrations. We also cover Reading, around 15 miles from The City.
Anyone looking for fire stopping in HP14 gets the same process as the rest of our area: send details, get a quote, we seal, guaranteed. If your site is on Bottle Square Lane, Radnage Common Road and Green Lane or close by, send details and we’ll quote for service penetrations. Close to The City, our area also takes in Waterend (1 mile west), Beacon's Bottom (1 mile south-west), Radnage (1 mile north), Bennett End (1 mile north-west) and Green End (1 mile south-east). Nearby towns on our patch include Aylesbury (11 miles north), High Wycombe (5 miles south-east), Chesham (11 miles east), Marlow (7 miles south-east), Amersham (11 miles east) and Beaconsfield (10 miles east).
Near you in The City
We work on buildings around The Crown pub, among other places. The City’s nearest station is Saunderton station, roughly 1.8 miles north-east. Well-known places in the area include Wycombe Hospital (5 miles south-east). The countryside around The City includes Yoesden and Bald Hill.
Places near The City
Other services in The City
What we can’t put right
Being straight saves everyone time. New sealant won’t cure:
- Writing the fire-stopping specification
- Openings that need collars, wraps, batts or boards rather than sealant
- Gaps in walls that were never built as compartment walls
Not sure which it is? You can speak to us on 01277 525 020 or email us and we will tell you honestly.
Where we work in The City
- Pipe penetrations
- Cable penetrations
- Joints between fire-resisting walls and floors
- Small duct penetrations where the tested detail allows
- Service gaps in risers
- Linear gaps at wall heads
Questions we are asked in The City
What happens to BS 476 references for fire stopping in The City?
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. Our part doesn’t change: the specified product, to its tested detail.
Would you work within a site like Wycombe Hospital?
Yes. We work in healthcare settings as well as offices and schools. We follow the site’s permits, sign-in and infection-control procedures in every area.
Can weather delay the job?
It can, for external work. Sealant won’t bond properly to a wet or frosty joint, so external work may be moved if conditions aren’t right. Indoors, the weather is rarely a problem.
How do you choose the sealant?
A specification, where there is one, decides it. Without one, the joint decides: its movement, its surfaces and what it has to cope with.
Can you work while the building is occupied?
Yes, with some planning. Tell us your site hours and access windows and we’ll plan around them.
Is any job too small?
Small jobs are welcome alongside larger packages. Send details for a fixed quote.
Do you cover The City?
Yes. The City falls within our area, and you can ring 01277 525 020 or email the details over to get started.
For managing agents and facilities managers
We take on planned maintenance as well as one-off repairs: resealing failed joints building by building, on a schedule that suits your budget. The City can form part of a wider programme across Buckinghamshire.
When you manage a building on behalf of an owner, you need clear quotes and clear reporting. You get a fixed quote, an agreed scope and a walk round at the end.
Diagnose, treat, sign off
Diagnose, treat, sign off: that’s the shape of every visit. We inspect the joints and confirm what’s in scope, then the work is carried out to the specified product and detail, and we finish with a walk round so the work can be signed off. For a building around The City, tell us how to find it and who will meet us. Add it to your enquiry and we’ll build it into the plan.
- 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 so the seal starts clean.
- Backing and fire-rated sealant are installed to the detail and tooled.
- Anything outside the detail is reported to you rather than sealed.
What we need from you
- Send any specification or drawings in advance
- Let building users know which areas are affected
- Share the asbestos register for older buildings
Get a fixed quote
Quotes are fixed against the scope you send, so the cost is agreed before work starts. To ask for one, phone 01277 525 020 or use the quote form.
Related advice
How the quote is worked out
To price the job, we consider:
- Whether old sealant has to be cut out first
- Induction, permit and paperwork requirements
- Any access equipment needed
- Distance, for remote addresses
No two sites price the same: the joint sizes, the specified product, access and working hours each have a bearing. A fixed quote follows once we understand the job.
What we need to price the job
However big the job, the same details help:
- The asbestos register, for older buildings
- The postcode of the building
- What the building is and how it’s used
- Approximate linear metres or a joint schedule
If there’s a specification, drawings or a tender package, send it with your enquiry, and we’ll price the work to it. Smaller jobs need nothing more than photographs and a few notes.
Maintenance after handover
Your facilities or cleaning team can help the joints last. Pass these on to them:
- Don’t let anyone top up a fire seal with the wrong product
- Arrange inspection before areas are covered up
- Look above ceilings when tiles are lifted for other jobs
- Treat an open penetration as a priority repair
After every round of M&E works, check that the openings created have been sealed. A short check at the end of each job saves a long hunt later.
Write fire stopping into the scope of any work crossing a compartment wall or floor. Then the seal goes in while the area is open, not months later.