West Sussex · England
Fire-rated sealant in South Mundham, West Sussex
Fire rated sealant in South Mundham from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Open holes round services passing through fire walls
- Standard silicone or caulk in a fire-stopping gap
- Gaps left after a refit or conversion
Fire rated sealant in South Mundham
A fire seal relies on being installed the way it was tested: the right depth, the right backing and the right product for the substrate. That is the part we focus on. We are often asked to deal with unsealed gaps where pipes and cables go through a wall and holes left by a change of layout, on service penetrations, door frames and linear gaps.
Somewhere as small as South Mundham, commercial jobs tend to be pubs, holiday lets, farm buildings or halls rather than offices. Each still needs sound sealant in its washrooms and kitchens, and fire-rated joints where services pass through walls.
You get a 12-month guarantee, the same in South Mundham as everywhere else we work.
- Location
- South Mundham (PO20)
- Region
- West Sussex
- Cover
- One year on every job
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026

Can I do it myself?
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
If you’re set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it does not work out, we can still put it right.
What the job involves on each surface
Linear gaps
Long, narrow gaps appear where walls meet slabs and ceilings. They’re sealed with a fire-rated sealant over backing where the detail calls for it.
Plasterboard walls
We check that the board around the gap is sound. Loose material is removed so the sealant has a firm edge.
Looking after it afterwards
Looking after new joints is easy, and it makes a real difference:
- Photograph sealed gaps before they’re covered up
- Tell trades working in the building that fire seals must be put back
- Look in service cupboards and ceiling voids from time to time
- File the fire-stopping record where your assessor can find it
Include fire stopping in your regular building checks. Watch for cracking, gaps or seals that have been disturbed and get them seen to.
A gap left open in a fire-resisting wall or floor lets smoke spread in ways the building wasn’t designed for. Sealing it early is a simple step to take.
When to call us in South Mundham
If the sealant is too shallow, has the wrong backing or sits on a dusty surface, it isn’t installed as tested. We see plenty of fire stopping that was hurried.
Any of these means the joints need attention:
- Open joints along the top of partitions
- Gaps flagged on a fire risk assessment
- Gaps around pipes and cables through fire-resisting walls
- Gaps filled with a product that isn’t fire-rated
Community buildings like The Parish Church of St Stephen are part of the picture too: older buildings that have had new heating or wiring often have service gaps worth checking.
What to look for in a quote
- Whether all the old sealant comes out first
- Whether the sealant suits the joint
- How the colour is chosen
- What happens if the job turns out different
What fire rated sealant looks like in South Mundham
If you run a hotel, guest house or holiday let in a coastal place like South Mundham, 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. In England, the Regulatory Reform (Fire Safety) Order 2005 requires a fire risk assessment for workplaces and for the common parts of blocks of flats, which is often where open fire-stopping gaps are first noticed. We apply fire-rated sealant to the assessor’s or designer’s specification and the product’s tested details.
If you let a flat or house near Chichester station, fire-rated sealant around pipes and cables through walls and floors needs making good whenever new services go through. Schools such as North Mundham Primary School are buildings too, and fire-stopping around service openings should be restored whenever new services go in.
South Mundham is about 3 miles south of Chichester, in West Sussex. Every kind of property in South Mundham is covered for fire rated sealant, old or new, large or small. Every job comes with our one-year guarantee. Our West Sussex coverage runs to 371 places, and South Mundham is one of them. There’s also a page for Portsmouth, about 14 miles away.
We work across the PO20 postcode area for fire rated sealant. Fire rated sealant is available to properties on Manor Lane and Honer Lane and the roads around them. If you’re just outside South Mundham, we cover Fisher (1 mile west), Street End (2 miles south-west), Sidlesham Common (2 miles west), Nyetimber (2 miles south-east) and Sidlesham (2 miles south-west). We also work in nearby towns such as Bognor Regis (3 miles east), Chichester (3 miles north), Selsey (5 miles south), Littlehampton (10 miles east), Emsworth (9 miles north-west) and Rustington (11 miles east).
Landmarks near South Mundham
Typical jobs here are in homes near Chichester High School For Girls and Avisford. The closest station to South Mundham is Chichester station, about 2.5 miles north-west. Other landmarks nearby include Chichester Castle (3 miles north) and Chichester Cathedral Treasury (2.7 miles north-west).
The process
At the end, we look at the finished work together and explain the cure time. The work normally takes a few hours for a handful of gaps, and longer for a whole building, depending on how much there is to do. Somewhere like South Mundham needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- We start with the survey or action list, checking the size and surfaces of every gap.
- We remove any old or unsuitable filler and clean the gap.
- Where the tested detail needs backing or fill, we fit it.
- We apply the fire-rated or intumescent sealant to the specified depth and tool it.
- Finally, we list where we worked and what we used, for your records.
Getting ready for the visit
- Mention if the joints have been sealed before
- For business premises, tell us about site rules or sign-in
- Mention any tricky access
Ask for a quote
If you are in South Mundham and need fire rated sealant, phone 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and you’ll get a clear quote before we start.
Related advice
FAQs for South Mundham
I let a flat near Chichester station. Can you help?
Yes. We work for letting agents and landlords as well as householders, and several properties can go on one quote. You can call 0345 464 0079 or email us with the details for a clear quote.
Can you do fire rated sealant in South Mundham?
Yes, South Mundham is within the area we cover. We work across London and the South East. You can ring 0345 464 0079 or send us an email and let us know what needs doing, and we will give you a clear price.
Is the work guaranteed?
Yes, for a year. If anything isn’t right with the work within the year, let us know and we’ll sort it.
Will we have a record of what was sealed?
Yes. Every gap we seal is listed with the product used, so you have it on file.
Will you leave a mess?
Tidy work is part of the job. Nearby surfaces are protected, and we clear up when we’re done.
Is it worth trying it myself?
That depends on the joint. High-level, external movement and fire-rated joints are professional jobs.
What do you put in the joint?
We choose the sealant for the joint, not the other way round. Movement, water and weather all affect the choice, and we will tell you what we are using.
What does fire rated sealant cost?
There’s no set price, as it depends on the job: its size, the old material, access and the product needed. You will get a clear quote before any work starts.
How we quote for fire rated sealant
There’s no set price list, because no two jobs are the same. What we look at:
- Whether there’s mould to deal with
- The size of the job
- Working hours on commercial sites
- How much old sealant there is and how hard it is to remove
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you are not sure whether it needs doing, call 0345 464 0079 or drop us an email for an honest opinion and a quote.
What we need to know
Photos by email are helpful but not essential. Try to tell us:
- If someone has resealed it before
- If it’s domestic, commercial or a hotel
- What’s wrong with the joints now
- The address or postcode of the job
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we will explain how we’d tackle it. Whenever you are ready, call 0345 464 0079 or email us.
What we can’t put right
Some problems need a builder, plumber or other trade rather than us:
- Deciding what fire stopping a building needs
- Fire doors that need new seals, closers or hardware
- A wall that is not a fire-resisting element to begin with
If you are not sure, just phone 0345 464 0079 or drop us an email and we will give you a straight answer before you book.
What we seal
- Service penetrations
- Flats & HMOs
- Door frames
- Pipe & cable gaps
- Plasterboard & masonry
- Linear gaps
