West Sussex · England

Fire-rated sealant in Worthing, West Sussex

Fire rated sealant in Worthing from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.

  • Standard silicone or caulk in a fire-stopping gap
  • Gaps flagged on a fire risk assessment
  • Open holes round services passing through fire walls

Trusted fire rated sealant in Worthing

About our fire rated sealant in Worthing

Until it’s heated, intumescent sealant behaves like an ordinary sealant; in a fire it expands into the joint. The right product depends on the gap size, the substrate and what passes through, so we follow the tested detail for each one. We work on linear gaps, pipe & cable gaps and door frames, and common reasons people get in touch are gaps where walls meet ceilings or slabs and door frames with gaps between frame and wall.

Worthing has offices, shops, places to stay and schools as well as homes, all with washrooms, kitchens and service openings that need the right sealant. We cover both day-to-day sealant and fire-rated sealant, installed to the manufacturer’s tested details.

Our work is backed for twelve months, and the guarantee is the same wherever you are.

The Mr Mastic team in navy uniforms in front of three Mr Mastic vans
Place
Worthing (BN13, BN11, BN14, BN12)
Wider area
West Sussex
Cover
A year, on every job
Quote
A clear quote up front
Call
0345 464 0079
Updated
26 October 2026

When something else is needed

In fairness, there are a few things sealant won’t fix:

  • Sign-off of the building, which sits with building control or your assessor
  • Construction that does not provide fire resistance on its own
  • Large holes that need a different fire-stopping system

Not sure which it is? You can call 0345 464 0079 or email us and we will tell you honestly before you book.

What we seal

  • Service penetrations
  • Pipe & cable gaps
  • Flats & HMOs
  • Linear gaps
  • Door frames
  • Plasterboard & masonry

For landlords and businesses

We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we will quote.

Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. We can quote for more than one property at once.

Why deal with it now?

Leaving a gap until a refurbishment comes round can mean years with it open. Sealing the gap now is a contained job on its own and needn’t wait for anything else. In a large rental market like Worthing, tired sealant leads to tenant complaints about mould, damp and leaks. It’s simpler to sort between tenants than in the middle of a let.

We don’t show prices on the website, because each job is priced on what it involves. For a quick quote, please call 0345 464 0079 or email us and we’ll talk you through it.

What you get with us

  • Any old sealant cut out fully, not covered over
  • An ARBOMaster approved applicator
  • Neat joints and a tidy finish
  • Anti-fungal sanitary silicone in wet areas

Read what affects the cost or what customers say.

Questions from Worthing

Do you cover Worthing for fire rated sealant?

Yes, Worthing is within the area we cover. We work across London and the South East. Just call 0345 464 0079 or drop us an email with a few details of the job, and we’ll give you a clear quote.

Do you work for hotels and guest houses in Worthing?

Yes. Hotel and guest-house work is part of what we do. Work can be planned room by room, and out-of-hours working can be arranged.

Are you fully insured?

Yes. We’re fully insured, with over 20 years’ experience in sealant work.

Is it messy?

We keep the work tidy. We protect what’s around the joints.

Do the sealants smell?

Sometimes, a little. Any smell clears as the sealant cures, and ventilation helps.

I’m a tenant. Can you help?

Yes, though it’s best to check with your landlord first. Many landlords are glad to have it sorted.

Should I try DIY first?

Sometimes. The key is preparation: remove all the old material and work on a clean, dry joint. We can always put it right if it fails.

Do I have to be there?

We need access to the joints, so we will agree that with you when we book. Indoors, that generally means someone at home.

Looking after it afterwards

So the new joints stay in good condition:

  • Take photos of fire stopping before ceilings or boxing go back
  • Do not fill fire-stopping gaps with ordinary foam or silicone
  • Flag any open gap you spot round a pipe or cable
  • Include fire stopping when you schedule refits

Let contractors know where fire stopping has been done, and ask them to reseal anything they cut through. A lot of damaged fire stopping comes from later work.

Small gaps around services are simple to deal with while there are only a few. Over time, more work adds more holes and the job gets bigger.

Common problems we fix in Worthing

Buildings are refitted and reconfigured over the years. Conversions to flats and HMOs, and office refits, create new walls and new routes for services, with gaps to match.

Look out for any of the following:

  • Old fire sealant that has split or come away
  • Open gaps behind door architraves
  • Gaps left after a refit or conversion
  • Ordinary sealant used where a fire-rated product was needed

Rented homes near West Worthing station change hands often, and fire-rated sealant around pipes and cables through walls and floors needs making good whenever new services go through.

Questions to ask before booking

  • Is the old sealant removed completely?
  • The length of the guarantee
  • Is VAT in the price?
  • Who turns up on the day

Choosing a sealant specialist

The process

Good joint work is mostly preparation, so that’s where we spend the time. Joints are cleaned back and dried before anything new goes in. All told, the work takes from a few hours to a few days, depending on the number of gaps and the access. Commercial jobs in Worthing can be planned out of hours where a building can’t close, while home visits are arranged within our normal working hours, Monday to Saturday.

  1. We plan the order of work and access, floor by floor or flat by flat.
  2. Old, damaged or unsuitable sealant is removed.
  3. Dust and loose debris are cleaned from each gap.
  4. The fire-rated or intumescent sealant is applied and tooled to the tested detail.
  5. Locations and products are written up and any gaps unsuitable for sealant are flagged.

How to prepare

  • Try not to wet indoor joints just before the visit
  • Plan for the work area to be out of bounds to pets and children
  • Mention any tricky access

Getting a quote

For a quick quote, get us on the phone, or send an email if you’d rather. Describe what needs sealing and we’ll talk you through the work and send you a clear quote.

Ask for a quote

Read more

Commercial buildings in Worthing

For seaside hotels, guest houses and holiday lets around Worthing, heavy use in the busy months is hard on washroom and kitchen sealant, and any building work there should leave fire-rated joints made good. Worthing has hotels and guest accommodation in and around it. Hotel work can be planned room by room, with out-of-hours working where needed.

If you look after a building such as Durrington High School, service openings in fire-resisting walls need checking after any refurbishment. For buildings such as St Andrew's Church, older buildings that have had new heating or wiring often have service gaps worth checking.

Worthing is in West Sussex. Homes, rented property, offices and hotels in Worthing can book us for fire rated sealant, old or new, large or small. The work is guaranteed for a year. Worthing is one of 371 places in West Sussex where we work. You can also see our page for Brighton, roughly 12 miles from Worthing.

Postcode districts we cover here for fire rated sealant: BN13, BN11, BN14 and BN12. If you need fire rated sealant at a property on Church Road, Market Place and High Street or anywhere close by, we can help. Main roads around Worthing include the A24 and A27, so getting to you is simple. Neighbouring places we cover for fire rated sealant include Salvington (1 mile north), Offington (1 mile north-east), Broadwater (1 mile east), Findon Valley (2 miles north) and East Worthing (2 miles east). Within a short drive, we also cover Bognor Regis (13 miles west), Burgess Hill (15 miles north-east), Littlehampton (6 miles west), Shoreham-by-Sea (6 miles east), Lancing (3 miles east) and Rustington (5 miles west). Worthing is among the bigger towns we cover in West Sussex.

Landmarks near Worthing

In Worthing, that means homes and buildings near The George And Dragon Public House, Durrington Minature Railway and Thomas A Becket First School. The closest station to Worthing is West Worthing station, roughly 0.5 miles south-east of the centre. Other landmarks nearby include The Acre (1.2 miles south-east) and Old Castle (less than half a mile east). For a walk, there’s Highdown Hill and Widewater Lagoon.

Map of Worthing © OpenStreetMap contributors

Can I do it myself?

If you’re set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.

The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job