
Fire stopping in Devil's Den
Our CSCS-carded applicators take on fire-rated and intumescent sealing of service penetrations and linear gaps in Devil's Den and the surrounding area. Send details for a fixed quote.
- Seals disturbed by maintenance and left open
- Old intumescent sealant that has split away
- Head-of-wall gaps with no fire seal
Fire stopping for Devil's Den sites
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Fire stopping for commercial buildings in Devil's Den
Every service that crosses a compartment wall or floor leaves an opening, and that opening needs sealing to hold back fire and smoke. Our part is installing fire-rated and intumescent sealant at those openings and along linear gaps, where the specification calls for it. Each seal follows the manufacturer’s tested detail rather than guesswork. The enquiries we see most involve penetration schedules that need working through and unsealed joints where partitions meet the slab, across cable penetrations, small duct penetrations where the tested detail allows and pipe penetrations. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: in Devil's Den, that means joint design, primers and backing rod as standard.
Barn and farm-building conversions near places like Devil's Den 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.
Our workmanship is guaranteed for 12 months. If our installation lets you down in that time, we return and fix it.

- Place
- Devil's Den (ME17)
- Wider area
- Kent
- Guarantee
- A 12-month guarantee
- Price
- A fixed quote before we start
- Phone
- 01277 525 020
- Page updated
- 3 November 2026
Looking after the joints
For the best life from the joints:
- Brief every trade that openings they make must be sealed
- Check with the data sheet before painting over fire sealant
- File the specified details where the next contractor can find them
- Check risers and ceiling voids after each round of works
Add risers, plant rooms and ceiling voids to routine fire-stopping checks. Look for cracks, unsealed new cables and gaps that have been enlarged and get them dealt with.
Regular walk-rounds of service areas are worth the time. A cracked or disturbed seal found early is a small job.
Fire stopping around Devil's Den: how the place shapes the job
At about 36 miles from central London, Devil's Den is within reach of the capital. Offices around the capital are refitted often, and the cabling that follows can breach fire-resisting walls. In England, Approved Document B covers fire stopping of openings and penetrations. 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. What we install is set by the specification, and it goes in to the tested detail.
Where a unit on an estate such as Barradale Farm Industrial Estate (1.9 miles south-east of Devil's Den), has fire-resisting walls between offices and warehouse, any new service through them should be sealed to the tested detail. Around Devil's Den, we install fire-rated and intumescent sealant to the product’s tested detail wherever it is the specified product.
Devil's Den is about 5 miles south of Maidstone, in Kent. Businesses, contractors and managing agents in Devil's Den use us for work on service penetrations. 931 places across Kent fall within our area, Devil's Den among them. Sites around London have their own page, roughly 36 miles from Devil's Den.
Postcode districts covered here: ME17. We also cover Farthing Green (1 mile south-east), Rabbit's Cross (1 mile west), Cross-at-Hand (1 mile west), Hawkenbury (1 mile south) and Staplehurst (2 miles south-west). Nearby towns on our patch include Maidstone (5 miles north), Ashford (13 miles east), Sittingbourne (12 miles north-east), Royal Tunbridge Wells (14 miles west), Tonbridge (13 miles west) and Kings Hill (9 miles north-west).
What’s near Devil's Den
The closest station to Devil's Den is Staplehurst station, roughly 1.8 miles south-west. A little further out are Sutton Valence Castle (1.6 miles north-east) and South East Romany Museum (3 miles south-west).
What the job involves on each surface
Plastic pipes
Plastic pipes soften and collapse in a fire. Some intumescent sealants are tested on smaller plastic pipes, but many need a collar or wrap. We confirm material and size first and tell you if sealant isn’t the right product.
Small ducts
Some fire-rated sealant details cover small ducts. Larger or fire-rated ductwork usually needs a different solution set by the designer and we flag that rather than guess.
On site: what to expect
When we get to site, we sign in, go through any site induction and check how permits are handled. Everything around the joints gets protected before any cutting starts, with the work itself typically taking anything from one day to a planned run of visits, depending on the number of seals and the access. Rural sites near Devil's Den may need directions, gate codes or a contact on site. Add it to your enquiry and we will build it into the plan.
- First we go through the drawings, schedule or specification for the seals and raise any questions before we price.
- Every penetration is compared with its detail: wall or floor type, service, gap size and depth.
- Unsuitable fillers and loose debris are taken out of each opening.
- Mineral wool or other backing goes in wherever the detail asks.
- Fire-rated or intumescent sealant is gunned in to the specified depth, then tooled.
- Openings that need a collar, wrap, batt or other product are flagged to you rather than filled with sealant.
What we need from you
- Explain the parking and delivery arrangements
- Clear stock, furniture or equipment away from the joints
- Tell us what induction or permit system the site runs
Ask for a quote
To get a fixed quote, phone 01277 525 020 or send details through our quote form. Our quote form is another easy route.
Related advice
Site staff or a sealant specialist?
Redoing a failed joint typically costs more than getting it right at the outset, since all of it has to come out and the faces be cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.
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.
Cost factors for service penetrations
Each job is priced on its own details. The things that drive the figure:
- Distance, for remote addresses
- Removal of failed or old sealant
- Backing rod, priming and other preparation
- How much there is to seal
Quantities, awkward access and phased working all shape the price. So do site requirements such as inductions and permits.
What to include in your enquiry
We can often quote from photographs and a few details. It helps to include:
- Any specification or named product
- Whether the building will be occupied during the work
- Clear photographs of the problem areas
- Whether an asbestos survey exists
Pricing a project or setting a maintenance budget? We’ll quote against your scope and drawings you can plan around. If you have questions first, ring 01277 525 020 or email the details over.
Nearby places to Devil's Den
Other services in Devil's Den
For managing agents and facilities managers
For main contractors, we work as the sealant subcontractor on new-build and refurbishment projects. We work to your programme, your specification and your site rules, with CSCS-carded applicators on site.
Blocks and communal areas make up much of the work for housing associations and agents. Work can be phased so residents and staff keep access throughout, and each stage is agreed with your contact.
Questions about Devil's Den
Is a smaller place like Devil's Den outside your area?
No. Small places get the same service as large ones. We work across Greater London and the South East. We plan jobs in smaller places so return trips are kept to a minimum.
What happens to BS 476 references for fire stopping in Devil's Den?
From 2 September 2029, Approved Document B drops its BS 476 references in favour of BS EN 13501-2 classification, with transitional arrangements. The designer or fire engineer sets the specification, and we install the product to the manufacturer’s tested detail.
How many days will you need on site?
The duration is planned around your programme and the access we’re given. We will give you an estimate of time on site when we quote.
When can the area be used after sealing?
Curing time varies by product, and we confirm it on the day.
Can you work to our specification?
Yes. Include it with the drawings when you ask for a quote, and the quote will be based on it.
Will you come and look before quoting?
That depends on the size and complexity of the job. Simple work can often be priced from photos, and bigger or more complex jobs usually get a visit.
Is the work guaranteed?
Yes. Our workmanship is backed for 12 months on every job.