Fire-rated sealing and fire stopping in River, West Sussex
Sealant work in River for main contractors, managing agents and facilities managers: fire-rated and intumescent sealing of service penetrations and linear gaps, with a fixed quote first.
- Unsealed joints where partitions meet the slab
- Fire sealant pulled out of the opening
- Seals disturbed by maintenance and left open
Fire stopping near River
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
How we handle fire stopping in River
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. Those on your schedule are closed with the specified product. We work on joints between fire-resisting walls and floors, cable penetrations and small duct penetrations where the tested detail allows, and the failures we’re asked to look at most are fire-stopping items raised at inspection or handover and seals that don’t match their tested detail. A specialist sealant contractor works differently from a general builder: on jobs in River, preparation and product choice get the time they need.
Barn and farm-building conversions near places like River often combine new partitions with old walls. Where a pipe or cable passes through a fire-resisting wall, the seal must match the tested detail: product, substrate, gap and depth.
What our 12-month guarantee covers is the way we did the job: 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.
- Location
- River (GU28)
- Wider area
- West Sussex
- Cover
- A 12-month guarantee
- Quotes
- Fixed quote, scope in writing
- Phone
- 01277 525 020
- Updated
- 3 November 2026
After the work
Every sealant joint needs some looking after, and how long they last depends on how they’re treated. Our advice:
- Treat an open penetration as a priority repair
- Have penetrations checked while they can still be seen
- Record which product was used where
- Include service cupboards in routine inspections
New services after handover are a common way fire stopping gets breached. Building it into each contractor’s sign-off keeps the walls intact.
Specify fire stopping early on refits, not as an afterthought. The designer can then choose details that suit the services planned.
Do you need fire stopping in River?
Plenty of openings were simply never closed because they sat out of sight above a ceiling or inside a riser. They come to light during inspections, refits or when another trade lifts a tile.
If one of these sounds familiar, it’s time for a closer look:
- Builders’ foam or ordinary silicone in compartment walls
- Improvised or mixed-product fire seals
- Open linear gaps along the top of fire-resisting walls
- Damaged fire seals in risers and voids
Halls and meeting rooms at places like The Parish Church of St Peter sometimes gain new services, and any compartment wall crossed needs the specified seal.
Questions to ask before you book
- Will RAMS and insurance details be available?
- Will CSCS-carded applicators be on site?
- Their approach to joint depth and backing
- How long is the guarantee, and what does it include?
Work for main contractors and building owners
If you look after buildings for someone else, clear figures and clear communication matter. You get a fixed quote, an agreed scope and a walk round at the end.
Building owners and managing agents use us on sealant work across single buildings or whole portfolios around River. Several sites can go on one quote, so there’s one set of paperwork to deal with.
How the job changes by surface
Linear joints
Linear joints run along the head of a wall, at a slab edge or between two fire-resisting elements. Their tested detail, under BS EN 1366-4, sets the width, depth, backing and movement allowed and the installation has to fit inside those limits.
Drylining partitions
Service holes through plasterboard are frequently oversized or ragged. An oversized hole may be outside the sealant’s range and we will tell you what the detail says instead.
Diagnose, treat, sign off
Our CSCS-carded applicators arrive with the sealants, primers and backing rod the job calls for. Joint faces are cleaned back to sound, dry surfaces, the manufacturer’s primer is applied where it’s called for, and each bead is tooled to a neat concave finish. For a building around River, tell us how to find it and who will meet us. Send that with the details and we’ll confirm the plan with the quote.
- First we go through the drawings, schedule or specification for the seals and ask about anything unclear.
- On site, each opening is checked against the tested detail it is meant to follow.
- Anything that doesn’t belong in the opening, such as expanding foam or general-purpose filler, is removed.
- Mineral wool or other backing goes in wherever the detail asks.
- We apply the specified sealant to the depth and around the services as the detail shows.
- Openings that need a collar, wrap, batt or other product are flagged to you rather than filled with sealant.
Preparing the site
- Confirm the product named in the specification
- Clear stock, furniture or equipment away from the joints
- Tell us what induction or permit system the site runs
Getting a fixed quote
A good quote starts with a clear picture: the joints involved, quantities, access and the product called for. Share whatever details you have and we will fill any gaps with a visit.
Read more
Leave it or put it right?
Open penetrations multiply: every new cable or pipe adds another. A schedule that is dealt with regularly stays manageable. Around River, it’s better to renew all the failing joints at once, rather than one at a time. Send photos of each area and we will quote for the lot.
We don’t publish prices, because the scope varies so much from one building to the next. Call for a quote.
Why us?
- Sealing commercial buildings since 2005
- Fully insured, including public liability cover
- Clear, fixed quotes
- Work to your specification and the manufacturer’s guidance
Read how commercial sealant jobs are priced and how we’re accredited.
Common questions from River clients
Does your area include sites such as Hampers Common Industrial Estate, near River?
Yes. We cover River and the area around it, including industrial estates, business parks and retail parks such as Hampers Common Industrial Estate. A few photos and the unit address let us price the work.
Is River too far out for you?
No. Places such as River are covered as much as the big towns. We work across Greater London and the South East. Good photos up front let us bring everything on the first visit.
What does an EI 60 rating mean?
BS EN 1366-3 covers penetration seals and BS EN 1366-4 covers linear joints. Results are classified under BS EN 13501-2, where E is integrity, I is insulation and the number is minutes, as in EI 60. The rating applies to the product as tested.
Is any job too small?
Small jobs are welcome alongside larger packages. Photos and a description are enough to start.
Do you seal on top of existing sealant?
No. Sealing over old material is one of the classic causes of early joint failure, so everything comes out first.
What do you charge?
We don’t publish prices, because every site is different. Send photos or drawings and we’ll price it at a fixed figure.
Is the work guaranteed?
Yes. The 12-month guarantee covers our preparation and application, but not damage, misuse or other trades’ work.
More services for River
Service penetrations in River buildings
For England, the fire stopping of penetrations is dealt with in Approved Document B. References to the older BS 476 classes are being removed from it from 2 September 2029, after which the European classification, BS EN 13501-2, is the route, subject to transitional arrangements. What we install is set by the specification, and it goes in to the tested detail. At about 42 miles from central London, River is within reach of the capital. Office refits around the commuter belt bring new cabling through fire-resisting walls, and the gaps need sealing with the specified product.
On estates like Hampers Common Industrial Estate, 2.4 miles to the east of River, the wall between office and warehouse is often fire-resisting, and cables through it need the specified seal. Wherever services are added at a hospital such as Midhurst Community Hospital, 3.2 miles west of River, the compartment line has to be made good with the specified product.
River is about 12 miles east of Petersfield, in West Sussex. River sits inside our coverage, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. River is one of 373 places in West Sussex on our list for service penetrations. For work in that direction, see our Portsmouth page, about 22 miles away.
Commercial sites across GU28 are covered. We also cover Upperton (1 mile east), Selham (2 miles south), Tillington (2 miles south-east), South Ambersham (2 miles south-west) and Hampers Green (2 miles east). Nearby towns on our patch include Bognor Regis (14 miles south), Chichester (12 miles south-west), Littlehampton (14 miles south-east), Rustington (15 miles south-east), Storrington (11 miles south-east) and Billingshurst (9 miles east).
Around River
Around River, our work takes us to commercial buildings near The Hollist Arms Public House, among other places. Well-known places in the area include Lodsworth Castle (1.3 miles south) and Coultershaw Heritage Site (3 miles south-east). Open spaces near River include Graffham Common and Blackdown.