West Sussex · England
Fire Rated Sealant in Runcton
Fire rated sealant across Runcton and nearby, with every bit of old sealant taken out first.
- Unsealed gaps where pipes and cables go through a wall
- Unsealed gaps around fire door frames
- Open joints along the top of partitions
Your questions about fire rated sealant in Runcton
Can you do fire rated sealant in Runcton?
Yes. We work across London and the South East, and Runcton is part of that. You can call 0345 464 0079 or email us and tell us what needs doing.
Do you cover smaller places like Runcton?
Yes. Runcton is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Are you insured?
Yes, we’re fully insured for every job we do.
Can you quote for more than one area?
Yes, and it often makes sense. Combining jobs makes good use of the visit, so mention them when you ask for a quote.
Which products do you use?
Products from Arbo and Everbuild, among others, picked for each joint. We explain the product when we quote.
Do you hold any approvals?
Yes. We hold ARBOMaster approved applicator status.
Can tenants book the work?
Yes, though it’s best to check with your landlord first. Landlords are often happy for the work to be arranged.
Do the sealants smell?
It depends on the product. Some smell for a while, some hardly at all.
About our fire rated sealant in Runcton
Deciding which gaps need fire stopping is not our role; your assessor, designer or building control sets that out. What we do is apply the right product to that specification, properly and neatly. We work on service penetrations, flats & HMOs and plasterboard & masonry, and the jobs we see most are unsealed gaps around fire door frames and gaps filled with a product that isn’t fire-rated.
For a small place like Runcton, the journey and timings are agreed in advance, so it can be fitted around guests, clients or events where possible.
Big or small, it’s backed by our 12-month guarantee in Runcton and across West Sussex.
- Place
- Runcton (PO20)
- Wider area
- West Sussex
- Guarantee
- A year, on every job
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Should I try it myself first?
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.
Workplaces and buildings in Runcton
For seaside hotels, guest houses and holiday lets around Runcton, busy months put washrooms and kitchens under pressure, so it’s worth checking the sealant before the busiest weeks. Workplaces and the common parts of blocks of flats in England need a fire risk assessment under the Regulatory Reform (Fire Safety) Order 2005, and gaps around services are often picked up there. We work to the specification you are given, installing the product to its tested details.
If you look after a church, hall or community building such as The Parish Church of St Stephen, older buildings that have had new heating or wiring often have service gaps worth checking. If you look after a building such as North Mundham Primary School, service openings in fire-resisting walls need checking after any refurbishment.
Runcton is about 2 miles south-east of Chichester, in West Sussex. From the centre of Runcton to the outskirts, we cover fire rated sealant for every kind of property, from flats and houses to offices and hotels. Runcton is one of 371 towns and villages in West Sussex we cover. There’s also a page for Portsmouth, roughly 14 miles from Runcton.
Postcode districts we cover here for fire rated sealant: PO20. If you need fire rated sealant at a property on Goodwood Gardens, Brookside and Lagness Road or anywhere close by, we can help. Other places close to Runcton include North Mundham (1 mile west), Merston (1 mile north-east), Lagness (1 mile south-east), Hunston (1 mile west) and Portfield (2 miles north). Within a short drive, we also cover Worthing (15 miles east), Bognor Regis (3 miles south-east), Selsey (6 miles south), Littlehampton (9 miles east), Emsworth (9 miles west) and Rustington (10 miles east).
Near you in Runcton
Locally, jobs take us to homes and businesses close to Chichester High School For Girls. The nearest railway station is Chichester station, about 1.9 miles north-west of the centre. A little further out are Chichester Castle (2.1 miles north-west) and The Chichester City Museum (2 miles north-west).
Why it’s worth doing now in Runcton
Squirting in whichever sealant is nearest does not make a fire seal. Fire-rated products are tested in set gap sizes, depths and substrates, so both the product and the method matter. In a small place like Runcton, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
The cost reflects the work involved, not a rough estimate. That’s why we ask a few questions first.
Why choose Mr Mastic in Runcton
- We leave the area clean and tidy
- Over 20 years’ experience
- Experience in homes, commercial sites and hotels
- 12-month guarantee on every job
See our cost guide or customer reviews.
How the job changes by surface
Linear gaps
Linear gaps run along the head of walls, at floor edges and between panels. We seal them to the tested detail, with backing where it’s needed.
Flats and HMOs
Flats and HMOs rely on fire separation between homes and the common parts. We seal the gaps your assessor has identified.
Aftercare tips
No joint lasts for ever, but care makes a real difference. A few tips:
- Take photos of fire stopping before ceilings or boxing go back
- Ask every contractor to reseal any fire stopping they disturb
- Check risers, ceiling voids and cupboards during building checks
- Flag any open gap you spot round a pipe or cable
Let contractors know where fire stopping has been done, and ask them to reseal anything they cut through. Later work is a common cause of damaged fire stopping.
Small gaps around services are simple to deal with while there are only a few. Over time, more work adds more holes.
The process
The work is kept neat and contained to the area we’re working on, so you can get on with your day. The job normally takes a few hours for a handful of gaps, and longer for a whole building. In a small place like Runcton, access is usually the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- Access to each area is agreed so the work can run in order.
- We take out any damaged or unsuitable sealant.
- Dust and loose debris are cleaned from each gap.
- The fire-rated or intumescent sealant is applied and tooled to the tested detail.
- Locations and products are written up and any gaps unsuitable for sealant are flagged.
Before we arrive
- Clear items away from the joints we’re working on
- Mention any parking rules near the property
- For indoor joints, keep the area dry beforehand if you can
Ask for a quote
Want a quote for fire rated sealant? Please phone 0345 464 0079 or drop us an email with a few details. You’ll know what we plan to do, and what it will cost, before any work begins.
Related advice
What sealant work cannot fix
New sealant cannot fix everything, and we’ll tell you before any work starts. It won’t solve:
- Fire doors that need new seals, closers or hardware
- Certifying a building or signing off its fire safety
- Deciding what fire stopping a building needs
If in doubt, ring 0345 464 0079 or drop us an email and we will say what we think before you book.
What we seal
- Door frames
- Linear gaps
- Pipe & cable gaps
- Plasterboard & masonry
- Service penetrations
- Flats & HMOs
Common problems we fix in Runcton
Many open fire-stopping gaps are made after the building is finished. New cables, pipes and data runs go through walls and ceilings and the hole they leave does not always get resealed.
Common reasons people contact us include:
- Open gaps behind door architraves
- Sealant items on a fire risk assessment action list
- Old fire sealant that has split or come away
- Gaps where walls meet ceilings or slabs
If you let a flat or house near Chichester station, any gap left by new services in shared walls should be closed with a fire-rated product.
Comparing quotes
- Is VAT in the price?
- What insurance they hold
- How the surfaces are prepared before sealing
- Is the old sealant removed completely?