Fire stopping in Keston
Need fire stopping in Keston? Send us the details for a fixed quote, backed by a 12-month guarantee on the work.
- Old intumescent sealant that has split away
- Snag lists that include open service penetrations
- Fire stopping installed outside its tested range
Fire stopping across Keston
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
How a job runs
Inspect, seal, sign off: every visit follows that pattern. 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. In Keston, most buildings stay in use during the work, so zones and timings are agreed with whoever manages the building. Phased work keeps the rest of the building in use.
- First we go through the drawings, schedule or specification for the seals.
- On site, each opening is checked against the tested detail it is meant to follow.
- Anything that doesn’t belong in the opening, such as expanding foam or general-purpose filler, is removed.
- 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.
Before we start on site
- Arrange parking or a loading space
- Make sure the joints can be reached
- For older buildings, check the asbestos register before work
Quotes
A handful of photographs and a postcode is the fastest way to a quote. Upload them with the quote form, or call 01277 525 020 or email drawings and photos if you’d rather talk the job through.
Advice
About our fire stopping in Keston
Fire-rated sealant suits many small service penetrations: copper and steel pipes, cables and some small ducts where the tested detail allows. Larger openings and some plastic pipes call for collars, wraps, batts or boards instead. We use sealant where it is the specified product, and we tell you when a detail calls for something else. Most enquiries involve fire sealant pulled out of the opening and snag lists that include open service penetrations, across linear gaps at wall heads, service gaps in risers and cable penetrations. A single leaking joint is often how a building in Keston first comes to us: we look at the rest while we’re there and tell you what we find.
Fit-outs and M&E works in London buildings often leave service penetrations open behind ceilings and in risers. If sealant is the specified product we fit it to its tested detail, and if the detail needs something else, you’ll hear it from us.
Every job is signed off with a 12-month guarantee. The promise is simple: if the work we did fails within twelve months, we return to fix it.
- Place
- Keston (BR2)
- Region
- Greater London
- Guarantee
- A 12-month guarantee
- Quote
- Quoted before any work starts
- Telephone
- 01277 525 020
- Updated
- 3 November 2026
Places near Keston
Other services in Keston
What sealant work can’t fix
Honesty saves time and money. Fresh joints won’t solve:
- Construction that lacks the fire resistance the seal relies on
- Large openings beyond what any sealant detail covers
- Designing or specifying fire stopping, which sits with the designer or fire engineer
If in doubt, call the office on 01277 525 020 or use the quote form and we’ll say what we think.
What we seal
- Cable penetrations
- Pipe penetrations
- Linear gaps at wall heads
- Small duct penetrations where the tested detail allows
- Service gaps in risers
- Joints between fire-resisting walls and floors
Different surfaces, different methods
Drylining partitions
Drylined fire walls are tested in a particular build-up. The sealant detail has to be tested in that wall type, with the stated board layers first.
Masonry and concrete
Many seals are made in blockwork, brickwork or concrete slabs. Dust and loose debris are cleared out of the opening, so the sealant and any backing sit properly.
Should maintenance staff do it?
Site maintenance staff can often handle a short internal joint. Where it goes wrong is preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.
The visible bead is only part of the job. Correct depth, the right primer and a sealant matched to the movement are where general trades tend to cut corners.
Common questions from Keston clients
Does your area include sites such as Glebe Farm Business Park, near Keston?
Yes. We cover Keston and the area around it, including industrial estates, business parks and retail parks such as Glebe Farm Business Park. A few photographs and the unit address let us price the work.
Can work at a site such as Shaftesbury Nash College fit around teaching?
Yes. Tell us the term dates, vacation periods and access windows, and we’ll plan the work around them. Let us know which documents your site asks for, and we’ll confirm them alongside the quote.
How do you deal with asbestos in old sealant?
Asbestos is possible in some older mastics, particularly in buildings from before 2000. We check the asbestos register before cutting out old sealant in an older building, and if asbestos is suspected, work stops until it’s tested. Removing asbestos is a job for asbestos specialists, not us.
Do you take on multi-site work?
Yes. Several buildings can share a single quote, with one point of contact across South East England, Greater London and Scotland.
Do you have third-party installer accreditation for fire stopping?
No. We don’t hold a third-party fire-stopping installer certificate. Our credentials are CHAS accreditation, Constructionline membership and CSCS-carded applicators, and we are fully insured. If your contract requires third-party installer certification, we’re not the right fit for that package.
Is fire stopping in Scotland covered by different guidance?
Scotland sets its own building regulations, with Technical Handbooks, and England uses Approved Document B. Either way, we install the specified sealant to its tested detail.
How long does a typical visit take?
The duration is planned around your programme and the access we’re given. We’ll give you an estimate of time on site when we quote.
Cost factors for service penetrations
The price varies from site to site. It mainly depends on:
- Joint width, depth and condition
- How much existing material needs removing
- Distance, for remote addresses
- The site’s rules and procedures
There’s no price list, because the scope varies so much from one building to the next. For a fixed figure, call for a quote and we will price your job on its own details.
What to include in your enquiry
The more we know, the firmer the quote. Helpful details to send:
- Your programme or deadline
- Approximate linear metres or a joint schedule
- The postcode of the building
- Asbestos survey details if the building is older
Need a figure for a tender or a budget? We’ll quote against your scope and drawings you can plan around. For a chat about it beforehand, speak to us on 01277 525 020 or send details through our quote form.
Signs you need fire stopping in Keston
Some seals fail because the wrong product went in: builders’ foam or ordinary silicone used to fill a hole. It may look closed, but it has no tested fire performance in that position and has to be removed.
Clients typically get in touch after noticing one or more of the following:
- Fire sealant pulled out of the opening
- Snag lists that include open service penetrations
- Service penetrations left open after M&E works
- Fire seals cut back for extra cables and never reinstated
Offices at parks like Glebe Farm Business Park (to the south of Keston) are re-cabled with each new tenant, and compartment walls need sealing afterwards to the tested detail.
What to look for in a quote
- How the joint faces will be prepared and primed
- How the existing material will be dealt with
- The named product and why it was chosen
- What the guarantee covers, and for how long
Fire-rated sealing for Keston buildings
Every new tenant in a London building tends to bring new cabling, and with it new holes through compartment walls. Penetrations are sealed with the specified product, to its tested detail, under the building’s own permit rules. Keston has three care or nursing homes no more than 2 miles away. In a care home, any new pipe or cable through a fire-resisting wall should be sealed to the specified detail. We install fire-rated sealant to the tested detail where it is specified.
Colleges such as Shaftesbury Nash College (to the north-west of Keston) add IT and services as courses change, and each new penetration through a fire-resisting wall needs sealing with the specified product. In a school such as Keston Church of England Primary School, fire-rated sealant goes in around service penetrations where it is specified.
Keston is about 3 miles south of Bromley, in Greater London. Across the BR2 postcode area, the process is the same: details in, fixed quote out, then sealing and a 12-month guarantee. Keston is one of 764 places we cover in Greater London for service penetrations. London is covered too, some 11 miles away.
Work on service penetrations is covered throughout BR2, for business premises of every kind. For a building on Church Road, Greys Park Close and Heathfield Road or nearby, send details and we’ll quote for service penetrations. Sites close to Keston are covered too, including Nash (1 mile west), Farthing Street (1 mile south-east), Locksbottom (1 mile north-east), Leaves Green (2 miles south) and Hayes (2 miles north-west). Nearby towns on our patch include London (11 miles north-west), City of Westminster (13 miles north-west), Marylebone (13 miles north-west), Kensington (14 miles north-west), St Pancras (13 miles north-west) and Shoreditch (12 miles north).
Near you in Keston
We work on buildings around South Park, Ravens Wood School and The Greyhound pub. The closest station to Keston is Hayes (Kent) station, about 1.5 miles north-west. A little further out are Princess Royal University Hospital (1.1 miles east) and Bethlem Museum of the Mind (1.5 miles north). Not far away are West Kent Golf Course nature reserve and Summer Hill.