Chaldon fire stopping
Fire-rated and intumescent sealing of service penetrations and linear gaps throughout Chaldon and nearby, by CSCS-carded applicators. Fully insured and CHAS accredited.
- Unsealed joints where partitions meet the slab
- Penetration schedules that need working through
- Fire sealant pulled out of the opening
Fire stopping for businesses in Chaldon
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Fire stopping for commercial buildings in Chaldon
Our applicators are CSCS-carded, and we are CHAS accredited and a Constructionline member. We don’t hold a third-party fire-stopping installer certificate, and we won’t pretend otherwise. What we offer is careful installation of the specified sealant to its tested detail, with a 12-month guarantee on our workmanship. We work on small duct penetrations where the tested detail allows, joints between fire-resisting walls and floors and linear gaps at wall heads, and the usual reasons a site gets in touch are builders’ foam or ordinary silicone in compartment walls and old intumescent sealant that has split away. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: in Chaldon, that means joint design, primers and backing rod as standard.
A job near Chaldon is typically planned around one visit, so send the specification and photographs first. Design and sign-off belong to the designer or building control; we install what’s specified.
The 12-month guarantee covers our workmanship: 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
- Chaldon (CR3)
- Region
- Surrey
- Guarantee
- A 12-month guarantee
- Quotes
- Fixed quote, scope in writing
- Telephone
- 01277 525 020
- Updated
- 3 November 2026
Do you need fire stopping in Chaldon?
On a busy project, programme pressure can mean fire stopping is rushed or left to whichever trade is closest. That is when untested combinations creep in, which then have to be put right.
It’s worth sending us details if you spot any of the following:
- Fire stopping installed outside its tested range
- Open linear gaps along the top of fire-resisting walls
- Openings found when ceilings come down for a refit
- Old intumescent sealant that has split away
Colleges such as Coulsdon Sixth Form College, 1.8 miles north of Chaldon, add IT and services as courses change, and each new penetration through a fire-resisting wall needs sealing with the specified product.
Questions to ask before you book
- Health and safety accreditation such as CHAS
- How the joint faces will be prepared and primed
- Whether their applicators hold CSCS cards
- How joint depth will be controlled
When something else is needed
Not every problem is a sealant problem, and we’re upfront when that’s the case. It won’t fix:
- Writing the fire-stopping specification
- Walls or floors that aren’t fire-resisting to begin with
- Approving the work on behalf of building control
If you’re not sure, just call the office on 01277 525 020 or email a schedule or drawings and we’ll give you a straight answer before you book.
What we seal
- Cable penetrations
- Pipe penetrations
- Small duct penetrations where the tested detail allows
- Service gaps in risers
- Linear gaps at wall heads
- Joints between fire-resisting walls and floors
Aftercare for building managers
For the best life from the joints:
- File the specified details where the next contractor can find them
- Include service cupboards in routine inspections
- Flag new cables with no seal around them
- Have penetrations checked while they can still be seen
New services after handover are a common way fire stopping gets breached. Building it into each contractor’s sign-off keeps the walls intact.
On fit-outs, get the fire-stopping specification agreed before the services go in. The designer can then choose details that suit the services planned, and the work runs in step with the M&E.
Your questions answered
What happens to BS 476 references for fire stopping in Chaldon?
Approved Document B loses its BS 476 references from 2 September 2029, and BS EN 13501-2 becomes the route, subject to transitional arrangements. Whichever applies, we install the specified product to its tested detail; the specification is for the designer to set.
Will you take on work at estates like Church Walk Shopping Centre, close to Chaldon?
Yes. Our area takes in Chaldon and its surroundings, with estates and business parks such as Church Walk Shopping Centre included. Photos and a short description are enough for a first look.
Is any job too small?
Small jobs are welcome alongside larger packages. Send details for a fixed quote.
How do you choose the sealant?
The specification comes first, if there is one. If there isn’t one, it comes down to the joint: how much it moves, what it bonds to and whether it’s wet, trafficked or fire-rated.
Can the sealant be colour-matched?
In many cases, yes. Sealants are made in a wide range of standard colours, and matching to RAL references or nearby finishes is commonly requested. We’ll confirm the colours available for the specified product.
How long do sealant joints last?
There isn’t a single answer, since movement, weather, cleaning and use all affect it. Regular inspection is the best way to catch problems early.
Can you follow the specification on our project?
Yes. Send it with your enquiry, and we’ll price the work to it, flagging anything that needs clarifying.
Owners, agents and contractors
Housing associations and managing agents often need work done across blocks and communal areas. Work can be phased so residents and staff keep access throughout, with each stage agreed with your site contact.
When you manage a building on behalf of an owner, clear figures and clear communication matter. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative.
Other services in Chaldon
Where services cross fire walls in Chaldon
Chaldon 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. Where that’s fire-rated sealant, we install it to the manufacturer’s tested detail. In England, Approved Document B covers fire stopping of 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. What we install is set by the specification, and it goes in to the tested detail.
Shop fits on retail sites such as Church Walk Shopping Centre (1.3 miles east of Chaldon) can bring new services through fire-resisting walls between units, to be sealed with the specified product. In a building such as Church of St Peter and St Paul, any service penetration through a fire-resisting wall should be sealed to the specified detail.
Chaldon is about 1 mile south-west of Caterham, in Surrey. We send applicators to Chaldon for service penetrations. Across Surrey, 379 places are covered, including Chaldon. London is covered too, some 15 miles away.
We take on service penetrations across the CR3 postcode area, whatever the building. For a building on Mount Avenue, Linden Drive and Marshall Close or nearby, we can quote for service penetrations. You’ll find Chaldon on or near the B2031. Just outside Chaldon, we also work in Netherne on-the-Hill (2 miles north-west), Merstham (2 miles west), Brewer Street (2 miles south), South Merstham (2 miles south-west) and Hooley (2 miles west). Nearby towns on our patch include Epsom (8 miles north-west), Horley (7 miles south), Redhill (4 miles south-west), Ewell (8 miles north-west), Reigate (5 miles south-west) and Walton-on-Thames (15 miles north-west).
Landmarks near Chaldon
In Chaldon, that means premises near de Stafford School, Kitchen Copse and The King And Queen Public House, among other places. The nearest railway station is Caterham station, roughly 1.2 miles east of the centre. A little further out are Bletchingley Castle (2.8 miles south) and St Lawrence's Hospital (0.5 miles north-east). Green spaces nearby include South London Downs National Nature Reserve and Nore Hill.
On site: what to expect
Diagnose, treat, sign off: that’s the shape of every visit. First comes an inspection and agreement on scope, then we prepare and seal each joint with the specified product, and we finish with a walk round so the work can be signed off. Jobs in and around smaller places like Chaldon are normally planned as a single visit, so photographs and measurements up front really help. That way the right products come on the day.
- First we confirm the product and tested details named in the specification.
- We sort the openings by the detail each one needs.
- Improvised fillers and failed sealant are removed.
- Mineral wool or other backing is fitted where required.
- 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.
Before we start on site
- Send asbestos survey details if the building is pre-2000
- Move anything stored against the joints
- Point out parking and an unloading spot
Get a fixed quote
Need a figure for a tender or a budget? We will quote against your scope and drawings that you can work with. For a chat about it beforehand, phone 01277 525 020 or email the details over.
Related advice
How the job changes by surface
Linear joints
Joints at the top of partitions may need to move as the slab above deflects. We use the product and backing the detail names for that movement, with no gaps along the run.
Drylining partitions
Plasterboard partitions are tested as a specific construction. We check that the product’s detail covers that partition type and board thickness first.