
Fire-rated sealing and fire stopping in Westerton, West Sussex
Fire stopping in Westerton, backed by over 20 years in commercial sealing. Fully insured and CHAS accredited.
- Service penetrations left open after M&E works
- Fire sealant pulled out of the opening
- Head-of-wall gaps with no fire seal
Fire stopping in Westerton
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Why it’s worth doing now in Westerton
The longer openings stay, the more there tend to be: every new cable or pipe adds another. A schedule that is dealt with regularly stays manageable. Older rural buildings around Westerton move with the seasons, and rigid or tired sealant can’t keep up. The right product, sized to the joint, copes much better.
We don’t publish prices, since every building and every scope is different. Call for a quote and we will price your job on its own details.
Why clients in Westerton choose us
- 12 months’ guarantee on every job
- Clear, fixed quotes
- Constructionline member for supplier checks
- One number for every site we cover
Read our cost guide or how we’re accredited.
About our fire stopping in Westerton
Every service that crosses a compartment wall or floor leaves an opening, and that opening needs sealing to hold back fire and smoke. Our job is fitting fire-rated and intumescent sealant at those service penetrations, and along linear gaps, where it is the specified product. We work to the product’s tested detail for every seal rather than guesswork. If you’re dealing with seals disturbed by maintenance and left open and non-fire-rated filler around services, we can help, whatever the surface. One point of contact handles commercial sealant work in Westerton from the first photographs to the final walk-round, for single jobs and planned programmes alike.
A job near Westerton is usually planned around one visit, with the specification and photographs sent in advance. We install to the specification and the manufacturer’s guidance, leaving design and sign-off with the designer and building control.
Our 12-month guarantee is about workmanship, not wear and tear. How long a sealant joint lasts depends on movement, exposure, cleaning and use, so we’re clear about what is covered before work starts.

- Place
- Westerton (PO18)
- Region
- West Sussex
- Cover
- A 12-month guarantee
- Quote
- Fixed quote, scope in writing
- Phone
- 01277 525 020
- Updated
- 3 November 2026
Penetration seals near Westerton
At about 52 miles from central London, Westerton is within reach of the capital. Business park offices in the commuter belt are refitted as tenants change, and each fit-out adds services through compartment walls, and the gaps need sealing with the specified product. The 2 miles around Westerton include two care or nursing homes. Where new services have gone through compartment walls in a care setting, the gaps need the specified product. Where that’s fire-rated sealant, we install it to the manufacturer’s tested detail.
For a unit at a centre such as Summersdale Retail Park, 1.8 miles west of Westerton, penetration seals are worth checking after each shop fit. At a university such as University of Chichester (1.7 miles south-west of Westerton), labs, lecture blocks and residences are re-serviced often, so penetration seals are best checked after M&E work.
Westerton is about 2 miles north-east of Chichester, in West Sussex. Our applicators travel to Westerton for work on service penetrations. Westerton is one of 373 places in West Sussex on our list for service penetrations. For work in that direction, see our Portsmouth page.
We cover the PO18 postcode districts. If your building is just outside Westerton, we cover Strettington (1 mile east), Waterbeach (1 mile north-east), Maudlin (1 mile south), Westhampnett (1 mile south-west) and Shopwyke (1 mile south). Bigger towns within reach include Worthing (15 miles east), Bognor Regis (5 miles south-east), Selsey (9 miles south), Littlehampton (10 miles east), Rustington (11 miles east) and Storrington (14 miles east).
What’s near Westerton
We work on buildings around Chichester High School For Girls, Westbourne House School and The Coach And Horses Public House. The closest station to Westerton is Chichester station, about 2.5 miles south-west. Nearby you will also find Chichester Castle (2 miles south-west) and Chichester Centre (1.5 miles south-west). Open spaces near Westerton include Kingley Vale National Nature Reserve and Levin Down.
After the work
Sealant joints are maintenance items, and their life depends on movement, exposure, cleaning and use. Our advice:
- Have penetrations checked while they can still be seen
- Settle who seals which penetrations at the start of a project
- Treat an open penetration as a priority repair
- Leave fire sealant to cure fully before covering it
New services after handover are a common way fire stopping gets breached. Building it into each contractor’s sign-off keeps the walls intact.
Write fire stopping into the scope of any work crossing a compartment wall or floor. Then the seal goes in while the area is open instead of being left for someone else.
Questions we are asked in Westerton
Is hospital work, at somewhere like St Richard's Hospital, something you do?
Yes, healthcare and care buildings are part of our work. Each area is agreed with the ward or department and the estates team in advance.
Is Westerton too far out for you?
Not at all. Westerton is within our area. We cover Greater London and the counties of the South East. Where we can, we group nearby jobs to make the most of each trip.
Do you seal openings left by new services?
Yes, where there is a specification for those walls and floors. Openings left by new services are among the most common jobs we see and we close them with the specified product.
Do you approve fire stopping for building control?
No. Sign-off isn’t ours to give, and we don’t hold a third-party installer certificate. Our part is fitting the specified product to its tested detail, and any records you need can be confirmed with the quote.
Do you need to see the site first?
Photos, drawings or a schedule are often enough to quote. If the job needs a look first, we will arrange a visit.
Are you fully insured?
Yes. Mastic Doctor is fully insured, public liability included.
Can you send site paperwork?
Requirements differ from site to site, so list what you need, whether RAMS, insurance or CSCS details, and we will confirm with the quote.
Signs you need fire stopping in Westerton
Physical damage is another reason seals stop doing their job. Seals get knocked during maintenance, cut back to add a cable or pulled out when services are swapped and the opening isn’t always resealed.
Clients normally get in touch after noticing one or more of the following:
- Penetration schedules that need working through
- Openings left by services added after handover
- Unsealed joints where partitions meet the slab
- Expanding foam used as fire stopping
On a hospital site such as St Richard's Hospital (1.6 miles south-west of Westerton), fire-rated sealant goes in where the specification calls for it, with the work planned around the estates team’s permits.
Comparing quotes
- Proof of insurance
- Can the work be phased to keep areas open?
- How the joint faces will be prepared and primed
- How long is the guarantee, and what does it include?
Commercial clients in Westerton
FMs need a contractor who is easy to get on site. Tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we’ll confirm with the quote.
We take on planned maintenance as well as one-off repairs: working through a building or an estate in stages that fit your budget. Westerton can form part of a wider programme across West Sussex.
When it isn’t the sealant
Before quoting, we check that sealant is the right answer. It isn’t the answer for:
- Deciding what a wall or floor needs, which belongs to the designer
- Reviewing a building’s overall fire safety
- Gaps in walls that were never built as compartment walls
If in doubt, ring 01277 525 020 or send details through our quote form and we’ll say what we think.
Where we work in Westerton
- Linear gaps at wall heads
- Cable penetrations
- Joints between fire-resisting walls and floors
- Pipe penetrations
- Small duct penetrations where the tested detail allows
- Service gaps in risers
Places near Westerton
What else we do in Westerton
Our process
We follow your site rules from the start: sign-in, induction and whatever permit system the building uses. With the paperwork done, the joints are worked through in the order agreed with your site contact, and each area is checked before we leave it. Rural sites near Westerton may need directions, gate codes or a contact on site. Add it to your enquiry and we’ll build it into the plan.
- We ask for the product and detail your designer has specified.
- Openings are measured and grouped by detail.
- 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.
- Completed areas are checked with you, with the records agreed when we quoted.
Before we start on site
- Confirm the product named in the specification
- Agree which areas must stay open
- Let us know about inductions and permits
Request a quote
If there’s a specification, drawings or a tender package, send it with your enquiry, and we’ll price against exactly what is specified. Smaller jobs need nothing more than photographs and a few notes.