Fire Stopping in Green Cross
Fire-rated and intumescent sealing of service penetrations and linear gaps across Green Cross, carried out by CSCS-carded applicators. CHAS accredited and fully insured.
- Fire stopping installed outside its tested range
- Service penetrations left open after M&E works
- Seals disturbed by maintenance and left open
Fire stopping in Green Cross
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Your questions answered
Do you work on fire-rated sealing in hotels in Green Cross?
Yes, where fire-rated sealant is the specified product. Each seal follows the tested detail, and rooms are done in turn.
What does the BS 476 change mean for fire-rated sealant in Green Cross?
References to BS 476 classes are being removed from Approved Document B from 2 September 2029, after which BS EN 13501-2 classification is the route, subject to transitional arrangements. Our part doesn’t change: the specified product, to its tested detail.
Can you quote from photos?
Many jobs can be quoted from photos, drawings or a joint schedule. Where they aren’t, we arrange a site visit.
What happens if old sealant might contain asbestos?
The duty to manage asbestos sits with the building’s dutyholder, so for older buildings we ask for the asbestos register first. If anything suspect turns up, we stop until it’s tested.
Do you take on small jobs?
Small jobs are welcome alongside larger packages. Photos and a description are enough to start.
Do you cover Green Cross?
Yes. Green Cross falls within our area, and you can ring 01277 525 020 or email a schedule or drawings to get started.
How long will the new sealant last?
There’s no fixed lifespan: movement, exposure, cleaning, traffic and the product all play a part. Treat them as maintenance items and inspect them regularly.
How we handle fire stopping in Green Cross
We are commercial sealant applicators, CHAS accredited and a Constructionline member, with CSCS-carded applicators on site. We don’t hold a third-party fire-stopping installer certificate. We install the specified fire-rated sealant to its tested detail, and our workmanship carries a 12-month guarantee. If you have open linear gaps along the top of fire-resisting walls and unsealed openings around new pipes and cables, we can help. Whether you call it commercial sealant work, mastic application or joint sealing, the work in Green Cross is the same: failed joints cut out, faces prepared and the right sealant laid to the right depth.
Around smaller places like Green Cross, penetration seals come up in schools, halls, pubs with rooms, care homes and farm buildings used as offices. Any service penetration through those walls should be closed with the specified product, set out as its test evidence shows.
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 spell out the cover before we begin.
- Where
- Green Cross (GU10)
- Wider area
- Surrey
- Cover
- 12 months on our workmanship
- Quotes
- A fixed quote before we start
- Phone
- 01277 525 020
- Last updated
- 3 November 2026
Aftercare for building managers
Regular inspection catches problems early. In particular:
- Record which product was used where
- Report damaged or disturbed seals as soon as they’re spotted
- Make fire stopping part of every scope that crosses a fire-resisting wall
- Have penetrations checked while they can still be seen
Don’t patch a fire-rated seal with anything outside its tested detail. A repair should use the original product, installed the same way unless the designer specifies otherwise.
Specify fire stopping early on refits, not as an afterthought. The designer can then choose details that suit the services planned, and the work runs in step with the M&E.
Should maintenance staff do it?
The visible bead is only part of the job. Backing rod, primer where specified and a joint designed to move with the building are where general trades tend to cut corners.
Some joints are best left to specialists: for instance fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. Getting these wrong typically costs more in the end than doing them right.
What the job involves on each surface
Cables and cable bundles
Single cables and small bundles are often within a fire-rated sealant’s tested detail. Bundle size, cable type and the space between cables all matter.
Plastic pipes
Plastic waste pipes through slabs come up often. The detail decides whether sealant alone is enough, and we won’t substitute it for a specified collar.
Work for main contractors and building owners
We take on planned maintenance as well as one-off repairs: working through a building or an estate in stages that fit your budget. Green Cross can form part of a wider programme across Surrey.
Main contractors use us as their sealant subcontractor on new-build and refurbishment projects. We work to your programme, your specification and your site rules, with CSCS-carded applicators on site.
When it isn’t the sealant
Not every problem is a sealant problem, and we’re upfront when that’s the case. These need a different solution:
- Deciding what a wall or floor needs, which belongs to the designer
- Approving the work on behalf of building control
- Construction that lacks the fire resistance the seal relies on
Not sure which it is? You can give us a call on 01277 525 020 or send details through our quote form and we will tell you honestly.
Where we work in Green Cross
- Small duct penetrations where the tested detail allows
- Service gaps in risers
- Cable penetrations
- Linear gaps at wall heads
- Joints between fire-resisting walls and floors
- Pipe penetrations
Towns and villages near Green Cross
More services for Green Cross
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 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. Smaller jobs around Green Cross can be grouped with others nearby, which keeps travel down. 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.
- 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.
- We walk the completed areas with you and confirm the records agreed at quote stage.
What we need from you
- Let us know about inductions and permits
- Tell us which areas need to stay in use
- Send your site hours and access windows
Request a quote
For a fixed quote, speak to us on 01277 525 020 or send photos by email, telling us the site location and the nature of the job. Our quote form is another easy route.
Read more
Compartment walls and floors in Green Cross
Fire stopping of openings and penetrations in England falls under Approved Document B. From 2 September 2029, BS 476 references are being taken out of Approved Document B, leaving BS EN 13501-2 classification as the route, subject to the Government’s transitional arrangements. Our part stays the same: the specified product, installed to its tested detail. Green Cross lies roughly 38 miles out from central London. Office refits around the commuter belt bring new cabling through fire-resisting walls; the gaps need the specified seal.
Holiday works at schools like St John's CofE Aided Infant School often leave service openings to seal before pupils return. Older community buildings such as St John the Evangelist that have been rewired or given new heating can have service gaps through walls worth checking against the specification. Wherever services are added at a hospital such as Haslemere and District Hospital (to the south-east of Green Cross) the compartment line has to be made good with the specified product.
Green Cross is about 5 miles south of Farnham, in Surrey. If you’re looking for fire stopping in Green Cross, we can help. Green Cross is one of 379 places in Surrey on our list. There’s a separate page for Reading, roughly 24 miles from Green Cross.
Work on service penetrations is covered throughout GU10, for business premises of every kind. Nearby places we also cover include Churt (1 mile west), Whitmoor Vale (1 mile south-west), Beacon Hill (1 mile south-east), Barford (1 mile south-west) and Crosswater (1 mile north-west) for service penetrations. Nearby towns on our patch include Guildford (11 miles north-east), Woking (15 miles north-east), Camberley (14 miles north), Farnham (5 miles north), Frimley (12 miles north) and Haslemere (4 miles south-east).
What’s near Green Cross
Recent enquiries here include premises near Crossways Inn and The Flashes. The closest station to Green Cross is Haslemere station, about 3.7 miles south-east. Nearby you will also find Haslemere and District Hospital (3.8 miles south-east). Green spaces nearby include Gibbet Hill and Farnham Heath.