West Sussex · England
Fire Rated Sealant in Thorney Island
Intumescent and fire-rated sealant around gaps, frames and service penetrations for homes and businesses in Thorney Island and across West Sussex. Fully insured, ARBOMaster approved and guaranteed for a year.
- Old fire sealant that has split or come away
- Linear gaps at the head of walls
- Open holes round services passing through fire walls
What affects the cost of fire rated sealant
We quote each job individually. These are the things that affect it:
- Whether there’s mould to deal with
- Which sealant suits the joint
- How many areas need sealing
- The old material and how stubborn it is
Instead of a standard rate, we look at what your job involves: the amount of work, the old material and the access. You’ll know the price before we begin.
Asking for a quote
To make quoting easier, please include:
- How we’d reach the joints
- If it’s domestic, commercial or a hotel
- The address or postcode of the job
- How many joints, rooms or windows are involved
Getting a quote is simple: tell us what needs doing and where, and roughly how big it is. A few photos by email make the job easier to understand, and we will come back to you with a quote.
About our fire rated sealant in Thorney Island
Deciding which gaps need fire stopping is not our role; that comes from your fire risk assessor, designer or building control. What we do is apply the right product to that specification, properly and neatly. We work on service penetrations, door frames and plasterboard & masonry, and people most often call us about open gaps behind door architraves and standard silicone or caulk in a fire-stopping gap.
For holiday lets, converted business premises or a community building near Thorney Island, the washrooms, kitchens and any fire-rated joints need the same care as a big site.
You are covered for a year from the day we finish. If there’s a problem with it, please ring 0345 464 0079 or drop us an email.

- Location
- Thorney Island (PO10)
- Wider area
- West Sussex
- Cover
- One year on every job
- Quotes
- A clear price before we start
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Towns and villages near Thorney Island
Other services in Thorney Island
Why deal with it now?
Fire-rated sealants are less forgiving than ordinary ones. Depth, backing and surface preparation all affect how a seal performs, and we work to the product details every time. Where a wall is exposed, as many are in small places like Thorney Island, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
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 send us an email and we will give you an honest view and a quote.
Why us?
- Neat joints and a tidy finish
- More than 20 years in sealant work
- A 12-month guarantee on all work
- 4.9 on Google from 180+ five-star reviews
Work for landlords, hotels and businesses
Landlords and letting agents in Thorney Island can book us as well as householders. Sealant work between tenants is a simple way to keep a property in good order.
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we will quote.
Questions from Thorney Island
Do you work for landlords with property near Southbourne station?
Yes. We work for landlords and letting agents as well as householders. You can call 0345 464 0079 or email us with the details for a clear quote.
Will you come out to Thorney Island?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Are you an approved applicator?
Yes. We’re approved under the ARBOMaster scheme, which is run for the Arbo sealant brand.
What’s the difference between intumescent and fire-rated sealant?
Fire-rated sealant covers any sealant tested for use in fire stopping. Intumescent types expand when heated, and they’re one option among several. We use whichever the specification and tested details call for.
What sealant do you use?
It depends on the joint: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.
How long does fire rated sealant take?
That depends on how much there is to do, but as a guide it takes a few hours for a handful of gaps, and longer for a whole building. We will give you a better idea when we quote.
Are you insured?
Yes. We are fully insured.
What does fire rated sealant cost?
It depends on the job, so we quote each one individually. For a quick quote, phone 0345 464 0079 or email us with a short description of the job.
Do you need fire rated sealant in Thorney Island?
Gaps also open up as buildings move: a seal that cracks or pulls away leaves a path for smoke. Damage from cleaning, knocks and maintenance adds to it.
People normally contact us when they notice one of these:
- Open gaps behind door architraves
- Standard silicone or caulk in a fire-stopping gap
- Cracked or shrunken fire-rated sealant
- Open holes round services passing through fire walls
If you look after a church, hall or community building such as The Parish Church of St Nicholas, service openings in its walls need the right fire-rated sealant, as in any building.
What your quote should include
- What the quote includes, VAT included or not
- What insurance they hold
- Whether the sealant suits the joint
- What preparation is included
DIY sealant or a professional job?
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly, so tell us about it when you ask for a quote.
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.
Surface by surface
Door frames
A door can only do its job if the gap behind its frame is sealed too. We fill it with a fire-rated product suited to the materials either side.
Flats and HMOs
In occupied buildings, we plan the order of work with you. We agree access to each flat and the common parts before work begins.
How the visit works
We bring everything the job needs with us, so there’s nothing for you to buy. Once we have agreed what’s being done, we protect the area and start. Most jobs take anything from a few hours to several days, depending on how many gaps there are. For a village or hamlet like Thorney Island, the journey is planned in advance: let us know about lanes, gates and parking. 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.
- We record the locations and products used for your records.
Getting ready for the visit
- Clear the area around the work
- Keep pets and children clear of the area while we work
- Tell us about any water getting in
How to get a quote
For fire rated sealant in Thorney Island, call 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and we will agree the price before any work begins.
Read more
Commercial buildings in Thorney Island
If you run a hotel, guest house or holiday let in a coastal place like Thorney Island, busy months put washrooms and kitchens under pressure, so it’s worth checking the sealant before the busiest weeks. 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, 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 let a flat or house near Southbourne station, any gap left by new services in shared walls should be closed with a fire-rated product. If you look after a building such as Thorney Island Community Primary School, fire-stopping around service openings should be restored whenever new services go in.
Thorney Island is about 4 miles south-east of Havant, in West Sussex. For fire rated sealant in and around Thorney Island, it’s easy to get a quote: please call 0345 464 0079 or send us an email. We cover West Sussex from our Crawley base. Our West Sussex coverage runs to 371 places, and Thorney Island is one of them. For nearby work, see our Portsmouth page (7 miles or so).
Work in PO10 is quoted and booked the same way as anywhere else. Fire rated sealant is available to properties on Hunter Road, Emsworth Road and Spartan Close. Neighbouring places we cover for fire rated sealant include West Thorney (1 mile south-east), North Hayling (1 mile west), Tye (1 mile south-west), Northney (1 mile west) and Emsworth (2 miles north). Further out, we also cover Bognor Regis (11 miles east), Chichester (7 miles east), Selsey (9 miles south-east), Portfield (7 miles east), Yapton (14 miles east) and East Wittering (5 miles south-east).
Near you in Thorney Island
We work in homes and buildings around Bourne Community College and Eames Farm. Thorney Island’s nearest station is Southbourne station, about 1.8 miles north-east of the centre. Well-known places in the area include Havant War Memorial Hospital (3.2 miles north-west) and Emsworth Museum (1.6 miles north). Not far away are Nutborne Marshes.
