Fire-rated sealing and fire stopping in Ashington, West Sussex
Fire-rated and intumescent sealing of service penetrations and linear gaps in Ashington and across West Sussex. CHAS accredited and fully insured, with a 12-month guarantee.
- Old intumescent sealant that has split away
- Fire-stopping items raised at inspection or handover
- Damaged fire seals in risers and voids
Fire stopping for businesses in Ashington
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Fire stopping for commercial buildings in Ashington
We are commercial sealant applicators, CHAS accredited and a Constructionline member, with CSCS-carded applicators on site. We hold no third-party fire-stopping installer certificate. What we offer is careful installation of the specified sealant to its tested detail, with a 12-month guarantee on our workmanship. The enquiries we see most involve hidden openings found during inspections and unsealed joints where partitions meet the slab, on cable penetrations, joints between fire-resisting walls and floors and small duct penetrations where the tested detail allows. Whether you call it commercial sealant work, mastic application or joint sealing, in Ashington it comes down to the same thing: failed joints cut out, faces prepared and the right sealant laid to the right depth.
Smaller places such as Ashington still have buildings with fire-resisting walls and floors: schools, halls, care homes and commercial conversions. Any service penetration through those walls should be closed with the specified product, set out as its test evidence shows.
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.
- Place
- Ashington (RH20)
- Region
- West Sussex
- Cover
- A 12-month guarantee
- Quote
- A fixed quote before we start
- Phone
- 01277 525 020
- Last updated
- 3 November 2026
Cost factors for service penetrations
Each job is priced on its own details. The main factors are:
- Distance, for remote addresses
- The site’s rules and procedures
- The total length or number of joints
- Which sealant the job calls for
Larger quantities, tricky access or phasing all shape the price. Site requirements like inductions and permits play a part as well, along with the time of year for external work.
What to include in your enquiry
There’s no need for a formal survey. These details are enough to start:
- Specification clauses that apply
- Approximate linear metres or a joint schedule
- Asbestos survey details if the building is older
- When you need the work done
Let us know the site, the scope and your timescale, and we will put a fixed quote together. The easiest way is to call the office on 01277 525 020 or send photos by email.
Surface by surface
Drylining partitions
Service holes through plasterboard are frequently oversized or ragged. An oversized hole may be outside the sealant’s range and we’ll tell you what the detail says instead.
Small ducts
We seal around ducts only within what the tested detail covers. The ductwork, its supports and any dampers are for the ductwork contractor.
Leave it or put it right?
Open service penetrations matter on ordinary days, not just in a fire: smoke, noise and draughts pass through them every day. The specified fire seal closes the gap for all of these. Halls, stores and units around places like Ashington may not be checked every day, so a failed joint can leak for a while before anyone sees it. Resealing early avoids that.
We don’t publish prices, since every building and every scope is different. Call for a quote.
Why choose Mastic Doctor in Ashington
- Old sealant cut out, never sealed over
- A Constructionline member, so easy to vet
- Fully insured
- 12 months’ guarantee on every job
Take a look at how commercial sealant jobs are priced or our accreditations and insurance.
Common problems we fix in Ashington
Fire stopping can get squeezed at the end of a programme, or done by whoever is on site. That is when untested combinations creep in, which then have to be put right.
Site and facilities staff are often the first to spot these:
- Penetration schedules that need working through
- Expanding foam used as fire stopping
- Unsealed openings around new pipes and cables
- Improvised or mixed-product fire seals
In a school such as Ashington CofE Primary School, fire-rated sealant goes in around service penetrations where it is specified.
What your quote should include
- Health and safety accreditation such as CHAS
- Will RAMS and insurance details be available?
- What the guarantee covers, and for how long
- The named product and why it was chosen
Fire-rated sealing for Ashington buildings
Approved Document B is the English guidance that covers fire stopping around openings and penetrations. 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. Our part stays the same: the specified product, installed to its tested detail. Ashington is about 41 miles from central London. Offices around the capital are refitted often, and the cabling that follows can breach fire-resisting walls.
For a building at a site such as Wiston Business Park, 0.9 miles south-west of Ashington, a check of penetration seals after each fit-out is good practice. For a hotel such as Mill House Hotel, less than half a mile to the south of Ashington, penetration seals are worth checking after any refit or services upgrade.
Ashington is about 8 miles north of Worthing, in West Sussex. Any commercial site in Ashington is covered, for single jobs and planned programmes alike. 373 places across West Sussex fall within our area, Ashington among them. There’s a separate page for Brighton, about 13 miles away.
We take on service penetrations across the RH20 postcode area, for business premises of every kind. Streets here include London Road, The Sands and Hillcrest Drive, and sites on any of them can send details for a fixed quote. Close to Ashington, our area also takes in Wiston (1 mile south-east), Dial Post (3 miles north-east), Ashurst (3 miles east), Broomer's Corner (3 miles north) and Whitehall (3 miles north). Bigger towns within reach include Crawley (15 miles north-east), Horsham (10 miles north), Worthing (8 miles south), Haywards Heath (14 miles east), Burgess Hill (12 miles east) and Littlehampton (10 miles south-west).
Near you in Ashington
Around Ashington, our work takes us to commercial buildings near Rydon Community College, among other places. Well-known places in the area include The Storrington And District Museum (2.6 miles south-west). Open spaces near Ashington include Chanctonbury Hill and Knepp Wildland.
For managing agents and facilities managers
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, plus a 12-month guarantee.
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, and each stage is agreed with your contact.
How a job runs
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 Ashington may need directions, gate codes or a contact on site. Send that with the details and we will confirm the plan with the quote.
- First we confirm the product and tested details named in the specification.
- We sort the openings by the detail each one needs.
- Improvised fillers and failed sealant are removed.
- Where the detail needs backing, it goes in at the stated depth.
- We gun the sealant in to the specified depth around each service and tool it.
- Completed areas are checked with you, with the records agreed when we quoted.
Getting the site ready
- Tell us which areas need to stay in use
- Have the specification and drawings to hand
- Warn occupants and staff about the work
Request a quote
Specifications, drawings and tender packages are welcome with any enquiry, and we’ll price against exactly what is specified. For smaller jobs, photos and a description will do.
Related advice
Other services in Ashington
Common questions from Ashington clients
What happens to BS 476 references for fire stopping in Ashington?
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. Whichever applies, we install the specified product to its tested detail; the specification is for the designer to set.
Can you work at a site such as Wiston Business Park, by Ashington?
Yes. Estates, retail parks and business parks around Ashington, Wiston Business Park among them, are all within reach. Photos and a short description are enough for a first look.
Who decides which product is used?
A specification, where there is one, decides it. Without one, the joint decides: how much it moves, what it bonds to and whether it’s wet, trafficked or fire-rated.
What do you charge?
There isn’t a price list, as every site differs. Send photographs or drawings and we will price it at a fixed figure.
How long does a typical visit take?
The duration is planned around your programme and the access we are given. We’ll give you an estimate of time on site when we quote.
Do you work to architects’ specifications?
Yes. Include it with the drawings when you ask for a quote, and the quote will be based on it.
Is any job too small?
We quote for single jobs as well as large packages and programmes. Photos and a description are enough to start.