Fire-rated sealing and fire stopping in Southwick, Hampshire
Fire-rated and intumescent sealing of service penetrations and linear gaps throughout Southwick and nearby, by CSCS-carded applicators. Fully insured and CHAS accredited.
- Head-of-wall gaps with no fire seal
- Hidden openings found during inspections
- Service penetrations left open after M&E works
Fire stopping for businesses in Southwick
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Signs you need fire stopping in Southwick
A common fault is a product that was never fire-rated in the first place: builders’ foam or ordinary silicone used to fill a hole. It may look closed, but it has no tested fire performance in that position and has to be removed.
It’s worth sending us details if you spot any of the following:
- Service penetrations left open after M&E works
- Improvised or mixed-product fire seals
- Expanding foam used as fire stopping
- Old intumescent sealant that has split away
Halls and meeting rooms at places like Church of St James Without the Priory Gate sometimes gain new services, and any compartment wall crossed needs the specified seal.
Questions to ask before you book
- Their public liability cover
- Are they CHAS accredited or on Constructionline?
- Their plan for phasing and protecting the area
- Who will actually carry out the work
Fire stopping for commercial buildings in Southwick
We should be clear about what we do and don’t do. Deciding the specification sits with the designer, the fire engineer and building control. We fit the specified fire-rated sealant following that specification and the maker’s installation guidance on sites in Southwick. We work on small duct penetrations where the tested detail allows, service gaps in risers and cable penetrations, and the failures we are asked to look at most are expanding foam used as fire stopping and unsealed penetrations discovered above suspended ceilings. For commercial sealant work in Southwick, you deal with one contact from quote to sign-off, whether it’s one building or several.
Around smaller places like Southwick, 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
- Southwick (PO17)
- Region
- Hampshire
- Cover
- A 12-month guarantee
- Quote
- A fixed quote before we start
- Telephone
- 01277 525 020
- Updated
- 3 November 2026
Nearby places to Southwick
More services for Southwick
When something else is needed
Not every problem is a sealant problem, and we are upfront when that’s the case. It won’t fix:
- Openings that need collars, wraps, batts or boards rather than sealant
- Approving the work on behalf of building control
- Fire risk assessments, a job for a competent assessor
If in doubt, call 01277 525 020 or email us and we’ll say what we think.
Surfaces we seal
- Small duct penetrations where the tested detail allows
- Pipe penetrations
- Cable penetrations
- Service gaps in risers
- Linear gaps at wall heads
- Joints between fire-resisting walls and floors
Common questions from Southwick clients
Is Southwick too small for you to travel to?
No. Small places get the same service as large ones. We cover Greater London and the counties of the South East. Good photos up front let us bring everything on the first visit.
Is a hospital such as Queen Alexandra Hospital somewhere you can work?
Yes. Healthcare sites are among the places we work. We follow the site’s permits, sign-in and infection-control procedures in every area.
Can you seal any opening with fire-rated sealant?
No. A sealant’s evidence covers set services, gaps and wall or floor types. Outside that, a different product is needed.
Are you fully insured?
Yes. Our insurance certificate can be sent alongside the quote.
Do you offer coloured sealant?
Often, yes. Many products come in a range of standard colours, and matching to RAL references or surrounding finishes is often possible. We’ll confirm the colours available for the specified product.
What changes on 2 September 2029?
It mainly affects England, where Approved Document B is dropping its BS 476 references from 2 September 2029. Classification to BS EN 13501-2 becomes the expected evidence, subject to transitional arrangements. Scotland follows its own Technical Handbook, including clause 2.1.14 on service penetrations.
When can the area be used after sealing?
Curing time varies by product, and we confirm it on the day.
Different surfaces, different methods
Plastic pipes
Plastic waste pipes through slabs come up often. Whether sealant alone is acceptable depends entirely on the tested detail.
Masonry and concrete
Openings through concrete vary from tidy cores to rough break-outs. Each gap is measured where it is widest against the detail’s limits, and any that don’t are flagged.
Doing it in-house
The visible bead is only part of the job. Correct depth, the right primer and a sealant matched to the movement are where general trades tend to cut corners.
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.
On site: what to expect
Working in a building that stays open takes some planning. We sign and contain the area we are in, keep walkways clear and move on in phases so staff and visitors can carry on around us. Smaller jobs around Southwick can be grouped with others nearby, which keeps travel down. You will have a fixed quote before work starts.
- First we go through the drawings, schedule or specification for the seals and ask about anything unclear.
- Every penetration is compared with its detail: wall or floor type, service, gap size and depth.
- Unsuitable fillers and loose debris are taken out of each opening.
- 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.
- If an opening needs something other than sealant, we tell you instead of improvising.
Getting the site ready
- Tell us your opening times and when work is allowed
- Arrange parking or a loading space
- Agree which areas must stay open
Get a fixed quote
Specifications, drawings and tender packages are welcome with any enquiry, and we’ll price the work to it. For smaller jobs, photographs and a description will do.
Related advice
Fire stopping around Southwick: how the place shapes the job
Southwick lies roughly 62 miles out from central London. Office refits around the commuter belt bring new cabling through fire-resisting walls; the gaps need the specified seal. 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. Either way, we install the specified product to its tested detail.
Where a unit on an estate such as Castle Trading Estate, which lies south of Southwick, has fire-resisting walls between offices and warehouse, any new service through them should be sealed to the tested detail. Shop fits in centres such as Broadcut Retail Park, 3 miles west of Southwick, can bring new services through fire-resisting walls between units, which then need the specified seal.
Southwick is about 3 miles west of Purbrook, in Hampshire. Looking for fire stopping in Southwick? We can help, as we do across Hampshire. We work across 723 places in Hampshire, large and small.
Anyone looking for fire stopping in PO17 gets the same process as the rest of our area: details, then a fixed price, then sealing and a 12-month guarantee. For a building on High Street, North Road West and Castle Road or nearby, send details and we’ll quote for service penetrations. Just outside Southwick, we also work in Boarhunt (1 mile west), North Boarhunt (2 miles north-west), Portchester (2 miles south), Hundred Acres (3 miles north-west) and North Fareham (3 miles west). Further afield, our area takes in Gosport (5 miles south), Havant (5 miles east), Eastleigh (12 miles north-west), Fareham (4 miles west), Horndean (5 miles north-east) and Chandler's Ford (14 miles north-west).
Around Southwick
We work on buildings around Red Lion Inn. Southwick’s nearest station is Portchester station, roughly 1.9 miles south. Other landmarks nearby include Portchester Castle (2.6 miles south) and Fareham Shopping Centre (3.2 miles south-west). For a walk, there’s Portsdown Hill and St Clair's Meadow.
For managing agents and facilities managers
When you manage a building on behalf of an owner, you need clear quotes and clear reporting. You get a fixed quote, an agreed scope and a walk round at the end.
FMs need a contractor who is easy to get on site. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we’ll confirm them with the quote.