
Fire stopping in Halnaker
Our CSCS-carded applicators take on fire-rated and intumescent sealing of service penetrations and linear gaps in Halnaker and the surrounding area. Send photos or drawings for a fixed quote.
- Fire-rated sealant that has cracked or shrunk back
- Penetration schedules that need working through
- Expanding foam used as fire stopping
Fire stopping in Halnaker
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Commercial clients in Halnaker
Agents, factors and owners’ representatives all follow the same route: send the details, accept a fixed quote, and we carry out and guarantee the work. We can agree access arrangements and keyholder contacts beforehand.
Blocks and communal areas make up much of the work for housing associations and agents. Work can be phased so residents and staff keep access throughout, with each stage agreed with your site contact.
About our fire stopping in Halnaker
Opened ceilings and riser doors often reveal service openings nobody sealed. If a specification already covers those walls and floors, we can reseal to it using the product and detail it sets out. With no specification in place, the first step sits with your designer or fire engineer, not with us. If you have hidden openings found during inspections and improvised or mixed-product fire seals, we can put it right, on pipe penetrations, small duct penetrations where the tested detail allows and joints between fire-resisting walls and floors alike. Whether you call it commercial sealant work, mastic application or joint sealing, the work in Halnaker is the same: the right product in a properly prepared joint.
A job near Halnaker is normally planned around one visit, so send the specification and photos first. Design and sign-off belong to the designer or building control; we install what’s specified.
Guaranteed is the last step of every job. Our workmanship is backed for 12 months, and we explain exactly what that covers when we quote.
- Where
- Halnaker (PO18)
- Wider area
- West Sussex
- Guarantee
- 12 months on every job
- Quotes
- A fixed quote before we start
- Telephone
- 01277 525 020
- Page updated
- 3 November 2026

Common problems we fix in Halnaker
Some service penetrations were never sealed at all 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.
Any of the following is a good reason to get the joints checked over:
- Builders’ foam or ordinary silicone in compartment walls
- Service penetrations left open after M&E works
- Penetration schedules that need working through
- Open linear gaps along the top of fire-resisting walls
For an estates team at a campus like University of Chichester (3 miles south-west of Halnaker), summer M&E works are usually followed by a round of penetration sealing.
Questions to ask before you book
- The terms of the workmanship guarantee
- The named product and why it was chosen
- Their public liability cover
- Can the work be phased to keep areas open?
What sealant work can’t fix
Not every problem is a sealant problem, and we’d rather tell you before you spend money. These need a different solution:
- Designing or specifying fire stopping, which sits with the designer or fire engineer
- Walls or floors that aren’t fire-resisting to begin with
- Issuing fire ratings or certificates for seals
If you are not sure, just phone 01277 525 020 or email us and we will give you a straight answer before you book.
Joints and surfaces we work on
- Small duct penetrations where the tested detail allows
- Service gaps in risers
- Cable penetrations
- Pipe penetrations
- Linear gaps at wall heads
- Joints between fire-resisting walls and floors
Also near Halnaker
Other services in Halnaker
Should maintenance staff do it?
For most general trades, sealant is a sideline. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint, which is what makes a joint last.
Using site staff can make sense for a small touch-up, but larger jobs are different: a specialist brings efficiency, a consistent finish and a 12-month guarantee.
Diagnose, treat, sign off
On arrival, we sign in, go through any site induction and check how permits are handled. Floors, finishes and fittings next to the joints are covered before anything is cut or cleaned, and the work typically takes longer where risers, ceiling voids or occupied floors have to be worked through in sequence. For a building around Halnaker, tell us how to find it and who will meet us. Add it to your enquiry and we will build it into the plan.
- We read the specification, drawings or penetration schedule you send and ask about anything unclear.
- Every penetration is compared with its detail: wall or floor type, service, gap size and depth.
- 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.
- Fire-rated or intumescent sealant is gunned in to the specified depth, then tooled.
- Openings that need a collar, wrap, batt or other product are flagged to you rather than filled with sealant.
Getting the site ready
- Share your working hours and any access restrictions
- Warn occupants and staff about the work
- Flag any permit to work we will need
Ask for a quote
Pricing a project or setting a maintenance budget? Send the scope and any drawings, and we will return a fixed quote you can plan around. For a chat about it beforehand, give us a call on 01277 525 020 or send photos by email.
Advice
Halnaker: questions and answers
Do you cover business parks and estates near Halnaker, such as Chichester Business Park.?
Yes. Estates, retail parks and business parks around Halnaker, Chichester Business Park. Among them, are all within reach. Send details of the unit and the work through our quote form for a quick quote.
Can work at a site such as University of Chichester fit around teaching?
Yes. We plan campus work around teaching, exams and residence turnarounds. Let us know which documents your site asks for, and we will confirm them alongside the quote.
Do you work in Scotland as well as England?
Building standards in Scotland are separate from England’s. Wherever the site is, our work follows the specification and the tested detail.
Can you reseal penetrations after our M&E works?
Yes. Send the schedule or marked-up drawings and the specified product details for a fixed quote. We can follow the services contractor floor by floor.
What do BS EN 1366-3 and BS EN 13501-2 mean?
Penetration seals are tested to BS EN 1366-3 and linear joint seals to BS EN 1366-4. Results are classified under BS EN 13501-2. The rating applies to the product as tested.
Is Halnaker in your area?
Yes. Halnaker is in our area. For a quote, call 01277 525 020 or send photos by email.
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.
Surface by surface
Cables and cable bundles
Single cables and small bundles are often within a fire-rated sealant’s tested detail. The detail limits bundle size and the gaps between and around cables, so we check before sealing.
Small ducts
Ducts are only sealed with sealant where the detail allows it. Dampers and ductwork systems themselves are outside our work.
Compartments and services around Halnaker
Fire stopping of openings and penetrations in England falls under 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. Halnaker has two care or nursing homes no more than 2 miles away. Where new services have gone through compartment walls in a care setting, the gaps need the specified product.
Hotels such as The Richmond Arms Hotel, 0.9 miles to the west of Halnaker, rely on fire-resisting walls between bedrooms and corridors, and refits that add services leave penetrations to seal where fire-rated sealant is specified. Large healthcare estates like St Richard's Hospital, 2.9 miles to the south-west of Halnaker, change their services often, so penetration seals are worth checking after M&E work.
Halnaker is about 3 miles north-east of Chichester, in West Sussex. Anywhere in PO18, it works the same way: details in, fixed quote out, then sealing and a 12-month guarantee. 373 places across West Sussex fall within our area, Halnaker among them. There’s a separate page for Portsmouth, about 16 miles away.
We cover the PO18 postcode districts for service penetrations. Buildings on The Street, Stame Road and Oakford Park are within our area. Close to Halnaker, our area also takes in Boxgrove (1 mile south), Waterbeach (1 mile west), Tangmere (1 mile south), Strettington (1 mile south-west) and Westerton (1 mile west). Further afield, our area takes in Worthing (14 miles east), Bognor Regis (5 miles south), Chichester (3 miles south-west), Selsey (10 miles south), Littlehampton (9 miles south-east) and Rustington (10 miles east).
Near you in Halnaker
Halnaker’s nearest station is Chichester station, roughly 3.8 miles south-west. A little further out are Chichester Centre (2.9 miles south-west) and The Chichester City Museum (3.4 miles south-west). Open spaces near Halnaker include Levin Down.