Fire stopping in Old Malden
Planning work on a service penetration in Old Malden? We assess it, carry out the work and guarantee our workmanship for 12 months.
- Fire-stopping items raised at inspection or handover
- Builders’ foam or ordinary silicone in compartment walls
- Improvised or mixed-product fire seals
Need fire stopping in Old Malden?
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
What sealant work can’t fix
A proper diagnosis includes knowing what sealant can’t do. We’ll tell you if the real problem is one of these:
- Construction that lacks the fire resistance the seal relies on
- Plastic pipes whose detail calls for a collar or wrap
- Deciding what a wall or floor needs, which belongs to the designer
If you’re not sure, just call the office on 01277 525 020 or email the details over and we’ll give you a straight answer.
Joints and surfaces we work on
- Linear gaps at wall heads
- Cable penetrations
- Service gaps in risers
- Pipe penetrations
- Joints between fire-resisting walls and floors
- Small duct penetrations where the tested detail allows
Fire stopping for commercial buildings in Old Malden
A lot of fire-stopping work comes after M&E installation, a refit or a tenant fit-out. Each new cable, pipe or data route cut through a fire-resisting wall leaves an opening behind, and they are easy to forget. We close the openings listed on your schedule, using the specified sealant and detail. The enquiries we see most involve fire sealant pulled out of the opening and head-of-wall gaps with no fire seal, on joints between fire-resisting walls and floors, small duct penetrations where the tested detail allows and service gaps in risers. Looking for mastic applicators who cover Old Malden? We’ve been sealing commercial buildings since 2005, CHAS accredited and a Constructionline member.
After a fit-out or new cabling in a London building, risers and ceiling voids are where open service gaps tend to be found. If sealant is the specified product we fit it to its tested detail, and if the detail needs something else, you will hear it from us.
Building owners and contractors get the same cover: a 12-month guarantee on our workmanship. Faults in the structure, damage and other trades’ work fall outside it, and we say so plainly.
- Place
- Old Malden (KT19, KT4, KT5)
- Wider area
- Greater London
- Guarantee
- 12 months on every job
- Quotes
- A fixed quote before we start
- Telephone
- 01277 525 020
- Updated
- 3 November 2026
Towns and villages near Old Malden
What else we do in Old Malden
After the work
Problems stay small when the joints are checked regularly. Specifically:
- Check risers and ceiling voids after each round of works
- Foam or ordinary sealant is never a fire-seal repair
- Put resealing into every M&E and fit-out package
- Ask the designer to confirm details early on refits
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.
Fire-rated sealing for Old Malden buildings
Every new tenant in a London building tends to bring new cabling, and with it new holes through compartment walls. We seal to the specification and the product’s tested detail, working within the building’s permits. For England, the fire stopping of penetrations is dealt with in Approved Document B. 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. Either way, we install the specified product to its tested detail.
Colleges such as Hillcroft College, 1.8 miles north-west of Old Malden, add IT and services as courses change, and each new penetration through a fire-resisting wall needs sealing with the specified product. For a hospital such as Tolworth Hospital, 0.9 miles to the west of Old Malden, penetration sealing is usually phased ward by ward, with infection-control rules agreed first.
Old Malden is about 2 miles north-west of Ewell, in Greater London. Any commercial site in Old Malden is covered. Old Malden is one of 764 places in Greater London on our list for service penetrations. There’s a separate page for London, about 11 miles away.
We cover the KT19, KT4 and KT5 postcode districts for service penetrations. For a building on Curtis Road, Rowden Road and Grafton Road or nearby, send details and we will quote for service penetrations. Sites close to Old Malden are covered too, including Worcester Park (1 mile east), Tolworth (1 mile north-west), Stoneleigh (1 mile south-east), Berrylands (1 mile north-west) and Chessington (2 miles south-west). Further afield, our area takes in London (11 miles north-east), City of Westminster (11 miles north-east), Marylebone (11 miles north-east), Kensington (9 miles north), St Pancras (12 miles north-east) and Shoreditch (13 miles north-east).
Local landmarks in Old Malden
Recent enquiries here include premises near Hogsmill LNR, Richard Challoner School and The Plough Inn Public House. For rail, the closest station is Tolworth station, roughly 0.5 miles west of the centre. Well-known places in the area include Tolworth Hospital (0.9 miles west) and Cockney Museum (1.3 miles south-east). Green spaces nearby include Tolworth Court Farm Fields and The Lake.
Questions about Old Malden
Do you work in London buildings with loading restrictions?
Yes. Inductions, permits and timed loading are routine for us in London. Send the building rules and access times with your enquiry. We allow for the ULEZ, which covers every borough
Do you take on work at healthcare sites like Tolworth Hospital?
Yes, provided the work is planned with the site’s estates team. Before anything starts, the estates team agrees permits, inductions and infection-control measures with us.
What does an EI 60 rating mean?
Penetration seals are tested to BS EN 1366-3 and linear joint seals to BS EN 1366-4. Results are classified under BS EN 13501-2 as E for integrity and I for insulation, with a time such as EI 60 or EI 120. That rating only holds when the product is installed to its tested detail.
Do you design or specify fire stopping?
No. The specification comes from your designer, fire engineer or building control. Our role is installing what they specify, to the product’s tested detail.
Can you fire stop behind the services contractors?
Yes, provided a specification covers them. Openings left by new services are among the most common jobs we see and we close them with the specified product.
Will you sign off the seals for us?
No. Approval sits with the designer, principal designer or building control. We will confirm the products and details used, and you can tell us what other records you need at quote stage.
Can one quote cover more than one building?
Yes. We take on portfolio and planned maintenance work, with each site phased to suit its occupants.
Site staff or a sealant specialist?
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.
For a quick touch-up, site staff may be fine, but anything bigger is another matter: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.
Surface by surface
Risers and ceiling voids
Openings above suspended ceilings are easy to miss. We follow your schedule area by area and tell you about openings outside the list.
Drylining partitions
Holes in board are often cut larger than needed. If the gap exceeds the tested range, sealant alone won’t do and we’ll tell you what the detail says instead.
Do you need fire stopping in Old Malden?
When a seal departs from its tested detail, the evidence no longer covers it. An oversized gap, too shallow a bead, missing backing or two makers’ products combined are the usual culprits.
Things that usually lead to an enquiry:
- Damaged fire seals in risers and voids
- Unsealed joints where partitions meet the slab
- Expanding foam used as fire stopping
- Seals that don’t match their tested detail
For a unit at a site such as Beverley Trading Estate, 2.1 miles to the east of Old Malden, new power or data runs between office and warehouse can breach a compartment wall.
Comparing quotes
- The named product and why it was chosen
- Whether their applicators hold CSCS cards
- How the joint faces will be prepared and primed
- What site paperwork they can supply
Our process
A typical day starts with protection: masking tape along the joint edges and sheeting over anything nearby. The work itself normally takes a single visit for a short list of penetrations, or a phased programme for a whole building, and our waste is bagged and taken away as we go. For a job in Old Malden, access comes first: booked loading, goods lifts, the building’s permit system and a spot to keep materials. Send the building rules and access times with your enquiry.
- We ask for the product and detail your designer has specified.
- Openings are measured and grouped by detail.
- Improvised fillers and failed sealant are removed.
- Where the detail needs backing, it goes in at the stated depth.
- Fire-rated or intumescent sealant goes in around the services and is tooled off.
- Completed areas are checked with you, with the records agreed when we quoted.
Preparing the site
- Tell us your opening times and when work is allowed
- Make sure the joints can be reached
- Point out any areas we must not close
Get a fixed quote
Send us photographs, drawings or a joint schedule are often enough for a fixed quote. Where a site visit makes more sense, we will arrange one.