Fire-rated sealing and fire stopping in Coombe, Greater London
Fire stopping in Coombe, backed by over 20 years in commercial sealing. Fully insured and CHAS accredited.
- Penetration schedules that need working through
- Head-of-wall gaps with no fire seal
- Openings found when ceilings come down for a refit
Fire stopping across Coombe
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
What the job involves on each surface
Small ducts
Some fire-rated sealant details cover small ducts. Bigger ducts and fire-resisting ductwork are normally handled with other products, and we’ll say if that applies.
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.
About our fire stopping in Coombe
Most of our fire stopping work happens after the building is up. New cable runs, replaced pipework and extra data routes all punch holes in compartment walls, and they are easy to forget. Those on your schedule are closed with the specified product. If you are dealing with builders’ foam or ordinary silicone in compartment walls and snag lists that include open service penetrations, we can put it right, whatever the surface. Most enquiries from Coombe start with one failed joint and grow into a wider look at the building: we check the joints around it and give you an honest view of what needs doing now and what can wait.
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.
What our 12-month guarantee covers is the way we did the job: the preparation, the sealing and the tooling. Damage, later alterations by others and movement beyond what the joint was designed for sit outside it.
- Place
- Coombe (KT2, KT3, SW20)
- Wider area
- Greater London
- Guarantee
- A 12-month guarantee
- Price
- Fixed quote, scope in writing
- Call
- 01277 525 020
- Updated
- 3 November 2026
Common questions from Coombe clients
Is a hospital such as New Victoria Hospital somewhere you can work?
Yes, healthcare and care buildings are part of our work. Each area is agreed with the ward or department and the estates team in advance.
Will you work in a care home in Coombe without moving residents out?
Yes, with the manager deciding the order and timing of rooms. We follow the home’s own procedures throughout.
Do you take on multi-site work?
Yes. We take on portfolio and planned maintenance work, planned site by site to suit how each building is used.
Are you insured?
Yes. We’re fully insured, including public liability cover.
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 are not the right fit for that package.
Do the same rules apply to fire stopping in Scotland?
Our work covers Greater London, the South East and every Scottish council area. In Scotland, clause 2.1.14 of the non-domestic Technical Handbook says service penetrations should keep at least the fire resistance of the wall or floor, with proprietary products tested for the end use.
Do you seal on top of existing sealant?
No. Failed sealant is removed and the faces cleaned back to sound, dry material first, because fresh silicone will not bond with aged silicone.
Penetration seals near Coombe
Approved Document B is the English guidance that covers fire stopping around openings and penetrations. The national BS 476 classes are due to drop out of it from 2 September 2029, leaving the European BS EN 13501-2 route, subject to transitional arrangements. We install whatever has been specified, to the product’s tested detail. 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.
At a college such as Interprime College London, which lies south of Coombe, checking penetration seals after summer M&E works is good practice. Campus buildings at universities such as Kingston University, 0.6 miles west of Coombe, see constant changes to data and services, and fire-rated sealant goes in around new penetrations where it is specified. For a unit at a centre such as Bentall Centre (1.8 miles west of Coombe), penetration seals are worth checking after each shop fit.
Coombe is about 1 mile north of New Malden, in Greater London. Looking for fire stopping in Coombe? We can help, as we do across Greater London. Coombe is one of 764 places in Greater London on our list for service penetrations. Sites around London have their own page, about 9 miles away.
Business premises anywhere in KT2, KT3 and SW20 are within our area for service penetrations. We cover commercial and managed buildings on West Road, Crown Road and Traps Lane and the roads nearby. Just outside Coombe, we also work in Motspur Park (1 mile south-east), Coombe Hill (1 mile north), Kingston Vale (1 mile north-east), Norbiton (1 mile south-west) and New Malden (1 mile south). Nearby towns on our patch include London (9 miles north-east), City of Westminster (8 miles north-east), Marylebone (8 miles north-east), Kensington (6 miles north-east), St Pancras (10 miles north-east) and Shoreditch (11 miles north-east).
Local landmarks in Coombe
We work on buildings around Canbury School, Coombe Girls' School and The Royal Oak Public House. Coombe’s nearest station is Norbiton station, roughly 1 mile south-west. Well-known places in the area include Bentall Centre (1.8 miles west) and White Lodge Museum (1.8 miles north). The countryside around Coombe includes Kew Gardens Lake and Kingston Hill Road area.
Should maintenance staff do it?
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.
There’s also the paperwork. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and we will confirm the paperwork you need with the quote.
Places near Coombe
Also in Coombe
Our process
In a busy building, we agree a sequence with your contact so the disruption stays in one area at once. Each section is protected, cleaned back and sealed, then reopened once the sealant allows before the next one starts. Planning a London job such as one in Coombe starts with access. Give us the hours we can be on site and we will schedule to suit.
- We start with your penetration schedule, drawings or specification.
- We plan the sequence of floors, risers and voids with you.
- We compare every service penetration with its tested detail before sealing.
- Unsuitable material is removed and the opening cleaned first.
- Backing and fire-rated sealant are installed to the detail and tooled.
- We tell you about openings that need a different product.
Before we start on site
- Share the asbestos register for older buildings
- Point out any areas we must not close
- Tell staff and tenants when we will be in
Getting a fixed quote
Photos, drawings or a schedule of the joints and a fixed quote comes back to you. Where a site visit makes more sense, we’ll arrange one.
Related advice
What sets the cost
Your fixed quote is built from the real scope. It takes account of:
- Phasing around occupants
- Location, for remote and island sites
- Backing rod, priming and other preparation
- Quantities, in metres or numbers
Whether it’s a single area or a whole estate, the same things set the price: what’s in scope, how we reach it, what’s specified and when it needs doing. Call for a quote, and you’ll have a fixed figure to work with.
Sending details for a quote
For an accurate fixed quote, we need to understand the site. Useful things to include:
- Any dates the work must fit around
- A wide shot and a close-up of the area
- Rough lengths or quantities, or drawings if you have them
- Anything awkward about access or site hours
If there’s a specification, drawings or a tender package, send it with your enquiry, and we will price the work to it. Smaller jobs need nothing more than photos and a few notes.
Honest limits
Our job is the joint, not everything around it. Sealant alone won’t deal with:
- Large openings beyond what any sealant detail covers
- Approving the work on behalf of building control
- 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 send photos by email and we will tell you honestly before you book.
Joints and surfaces we work on
- Cable penetrations
- Pipe penetrations
- Linear gaps at wall heads
- Service gaps in risers
- Small duct penetrations where the tested detail allows
- Joints between fire-resisting walls and floors
Why act early in Coombe
It is cheaper to seal service penetrations as each services package finishes than to come back for them later. While the area is still open, every opening is easy to see and reach and each detail can be checked as we go. Failed sealant in a building in Coombe can quickly affect neighbours, tenants or the floor below. Dealing with it early is simpler for everyone.
The specified product makes a difference, and so does the preparation, such as cutting out, priming or new backing rod. Access, phasing and site requirements come into it too.
What you get with us
- Fixed quotes based on photographs, drawings or a visit
- Constructionline member
- CHAS accredited
- Public liability insurance in place
See our cost guide or our accreditations.