Fire Stopping in Longcross
Fire-rated and intumescent sealing of service penetrations and linear gaps across Longcross, carried out by CSCS-carded applicators. CHAS accredited and fully insured.
- Openings found when ceilings come down for a refit
- Unsealed openings around new pipes and cables
- Head-of-wall gaps with no fire seal
Need fire stopping in Longcross?
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Our process
The first thing on site is a walk round with your contact, agreeing which joints are in scope, where to start and what must stay open. Then we strip out anything that has failed, prepare every joint and seal it. If others near Longcross need work, visits can be combined. A fixed quote is given before anything starts.
- First we confirm the product and tested details named in the specification.
- We sort the openings by the detail each one needs.
- Old or wrong materials are cut out.
- Mineral wool or other backing is fitted where required.
- We gun the sealant in to the specified depth around each service and tool it.
- Completed areas are checked with you, with the records agreed when we quoted.
Preparing the site
- Flag any permit to work we will need
- Have the specification and drawings to hand
- Arrange parking or a loading space
Getting a fixed quote
We quote a fixed sum against the scope you give us, so you know the figure before anyone is on site. To start the process, call 01277 525 020 or email a schedule or drawings.
Read more
About our fire stopping in Longcross
A lot of fire-stopping work comes after M&E installation, a refit or a tenant fit-out. New cable runs, replaced pipework and extra data routes all punch holes in compartment walls, often unnoticed. Those on your schedule are closed with the specified product. If you’re dealing with builders’ foam or ordinary silicone in compartment walls and openings found when ceilings come down for a refit, we can put it right, on cable penetrations, service gaps in risers and linear gaps at wall heads alike. Searching for sealant specialists in Longcross? We’ve been sealing commercial buildings since 2005, with CSCS-carded applicators.
Rural conversions around Longcross can put new fire-resisting partitions inside older structures. A penetration seal only performs as tested if product, substrate, service, gap and depth all match the detail.
The 12-month guarantee is for workmanship rather than wear and tear. Sealant wears with time, and movement, weather, cleaning and use decide how fast, so we’re clear about what is covered before work starts.
- Place
- Longcross (KT16)
- Region
- Surrey
- Guarantee
- 12 months on every job
- Price
- A fixed quote before we start
- Telephone
- 01277 525 020
- Page updated
- 3 November 2026
Where services cross fire walls in Longcross
Longcross lies roughly 23 miles out from central London. Offices around the capital are refitted often, and the cabling that follows can breach fire-resisting walls. Fire stopping of openings and penetrations in England falls under 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. We install whatever has been specified, to the product’s tested detail.
In a building such as Longcross Church, any service penetration through a fire-resisting wall should be sealed to the specified detail. Campus buildings at universities such as Imperial College Silwood Park Campus (to the north-west of Longcross) see constant changes to data and services, and fire-rated sealant goes in around new penetrations where it is specified. Wherever services are added at a hospital such as St Peter's Hospital, 2.6 miles to the east of Longcross, the compartment line has to be made good with the specified product.
Longcross is about 4 miles south-west of Egham, in Surrey. Our applicators travel to Longcross for work on service penetrations, handled exactly as we handle every other area. Our Surrey coverage takes in 379 places, large and small. We also cover Reading, around 18 miles from Longcross.
If you need fire stopping in KT16, the process matches everywhere else we work: send details, get a quote, we seal, guaranteed. We cover commercial and managed buildings on Longcross Road, Tanglewood Close and Albury Close and the roads nearby. Close to Longcross, our area also takes in Trumps Green (1 mile north-east), Stonehill (1 mile south-east), Lyne (2 miles east), Mimbridge (3 miles south) and Ottershaw (3 miles south-east). Nearby towns on our patch include Guildford (9 miles south), Woking (4 miles south), Camberley (7 miles south-west), Epsom (14 miles east), Farnham (15 miles south-west) and Ewell (14 miles east).
Landmarks near Longcross
In Longcross, that means premises near Gracious Pond and the streets around them. For rail, the closest station is Longcross station, about 0.6 miles north-west of the centre. A little further out are St. Peter's Hospital (2.6 miles east) and Chobham Museum (2.2 miles south). Green spaces nearby include Virginia Water Lake and St Ann's Hill.
FAQs: Longcross
Could you schedule work at a campus like Imperial College Silwood Park Campus for the vacation?
Yes. Tell us the term dates, vacation periods and access windows, and we’ll plan the work around them. We’re CHAS accredited and a Constructionline member, and paperwork such as RAMS is confirmed with the quote.
Will you take on work at estates like Hersham Farm Business Park, close to Longcross?
Yes. Estates, retail parks and business parks around Longcross, Hersham Farm Business Park among them, are all within reach. Send details of the unit and the work through our quote form for a quick quote.
Do you guarantee your work?
Yes, for 12 months. If our installation fails in that time, we return and fix it.
Do you certify or sign off fire stopping?
No. Approval sits with the designer, principal designer or building control. We will confirm the product and detail installed and agree any further records when we quote.
Is it fine to apply new sealant on top of old?
No. Sealing over old material is one of the classic causes of early joint failure, so it all comes out first.
Do you design or specify fire stopping?
No. Deciding what is needed sits with the designer, fire engineer and building control. Our role is fitting the specified fire-rated sealant, following the maker’s tested details.
How long before the joints can be used?
That comes down to the sealant and the temperature. Some take light use quickly, others need longer to cure, and we confirm it before leaving site.
Surface by surface
Risers and ceiling voids
Service risers and the voids above ceilings are where openings collect. Access is often tight, so we agree it with you in advance, including keys, permits and any isolations.
Cables and cable bundles
Cable penetrations are frequently sealed with fire-rated sealant where the detail allows. The detail limits bundle size and the gaps between and around cables and we work within those limits.
What else we do in Longcross
What affects the price in Longcross
These are the things that shape the price:
- Backing rod, priming and other preparation
- How much existing material needs removing
- The product specified
- Distance, for remote addresses
No two sites price the same: joint size, product, access and site hours all play a part. A fixed quote follows once we understand the job.
What we need to price the job
Diagnosis starts before we arrive. Let us know:
- What the building is and how it’s used
- The site address and postcode
- Anything awkward about access or site hours
- Drawings or a marked-up plan, if available
To get a fixed quote, ring 01277 525 020 or send details through our quote form, telling us the site location and the nature of the job. You can also send details through our quote form.
Maintenance after handover
Once the work is signed off, these steps help:
- Don’t let anyone top up a fire seal with the wrong product
- Look above ceilings when tiles are lifted for other jobs
- Have penetrations checked while they can still be seen
- Put resealing into every M&E and fit-out package
After the work, brief anyone else working in the area that the openings are now sealed. If a seal has to be opened for a new service, it should be reinstated to the same detail using the same product.
Specify fire stopping early on refits, not as an afterthought. The designer can then choose details that suit the services planned.
Leave it or put it right?
The longer openings stay, the more there tend to be: each new service adds to the list. A schedule that is dealt with regularly stays manageable, rather than turning into a full building survey and reseal. Around Longcross, it’s better to renew all the failing joints at once. Photos of every joint help us quote for the whole job.
Access can matter as much as the joints themselves: easy-to-reach joints are quicker than those that need equipment to get to. Tell us how the joints are reached and call for a quote.
Why clients in Longcross choose us
- Commercial sealant work since 2005
- Constructionline member for supplier checks
- Failed material removed, not covered up
- CHAS accredited
Take a look at what affects the cost or our accreditations.
When to bring in a specialist
Putting right a botched joint often costs more than sealing it well at the start, 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 anything bigger is another matter: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.