West Sussex · England
Fire-rated sealant in River, West Sussex
Fire rated sealant across River and nearby, with old sealant always removed completely.
- Unsealed gaps around fire door frames
- Cracked or shrunken fire-rated sealant
- Unsealed gaps where pipes and cables go through a wall
How we quote for fire rated sealant
The quote reflects the job in front of us. We look at:
- The size of the job
- The product the joint needs
- Working hours on commercial sites
- The old material and how stubborn it is
Combining jobs into one visit usually makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. We will give you a clear price for the lot.
Asking for a quote
To help us quote quickly, let us know:
- Photos by email, if that is easy
- Whether it has been sealed before
- What’s wrong with the joints now
- If it’s domestic, commercial or a hotel
Want a quote for fire rated sealant? Please ring 0345 464 0079 or send us an email with a few details. We will explain what we’d do and send you a clear quote before any work starts.
About our fire rated sealant in River
Filling a fire-stopping gap with standard silicone or caulk does not make it fire-rated. We cut out the wrong material and the gap is resealed with a product tested for that use. If you have gaps filled with a product that isn’t fire-rated and door frames with gaps between frame and wall, we can help, on pipe & cable gaps, service penetrations and plasterboard & masonry alike.
For holiday lets, converted business premises or a community building near River, washroom and kitchen sealant and any fire-rated joints need the same attention as anywhere.
Whatever the size of the job, you get the same one-year guarantee in River and across West Sussex.
- Where
- River (GU28)
- Region
- West Sussex
- Cover
- One year on every job
- Price
- A clear price before we start
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Looking after it afterwards
Looking after new joints is easy, and it makes a real difference:
- Photograph sealed gaps before they’re covered up
- Make resealing part of every contractor’s brief
- Do not paint over fire sealant until it has cured
- Look in service cupboards and ceiling voids from time to time
Include fire stopping in your regular building checks. Watch for cracking, gaps or seals that have been disturbed and have them put right.
When you plan work that goes through walls or ceilings, plan the fire stopping too. Doing it at the time avoids leaving gaps behind.
Towns and villages near River
Also in River
What happens if it’s left?
If an assessor has flagged gaps, it makes sense to close them before the next review. Getting them done and written up means you can show the action was taken. Around River, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
We do not show prices on the website, because each job is priced on what it involves. For a quick quote, please call 0345 464 0079 or send us an email.
Why choose Mr Mastic in River
- A 12-month guarantee on all work
- Homes, businesses and hotels
- Quality sealants from Arbo and Everbuild
- Anti-fungal silicone where joints get wet
What the job involves on each surface
Plasterboard walls
Many fire-resisting walls in flats, offices and conversions are plasterboard. We use a product tested in that kind of wall for each gap size.
Door frames
Frame gaps are generally hidden behind the architrave. Where it’s open, we seal it to the product’s details for that gap size before the trim goes back.
What we’re called out for in River
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 these signs:
- Open holes round services passing through fire walls
- Joints picked up in a fire-stopping survey
- New service routes left unsealed after building work
- Gaps filled with a product that is not fire-rated
Around River, as everywhere, fire rated sealant is only as good as the preparation behind it.
Questions to ask before you book
- How the surfaces are prepared before sealing
- Whether you can choose the colour
- Which sealant they’ll use, and why
- What the quote includes, VAT included or not
Your questions about fire rated sealant in River
Will you come out to River?
Yes, River is covered. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Is River in your area for fire rated sealant?
Yes. Our work covers London and the South East, and River is part of that. You can phone 0345 464 0079 or email us and tell us what needs doing, and we will give you a clear quote.
Can you quote for more than one area?
Yes, we can. Several rooms, windows or areas can go on one quote.
Does someone need to be in?
If the work is inside, we need someone to let us in. After that, you can carry on with your day.
Which products do you use?
Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference, and we will tell you what we’re using.
Can you work in occupied buildings?
Yes, in flats, HMOs, schools, offices and other buildings, occupied or empty. Tell us how the building is used and we will plan around it.
Do the sealants smell?
Sometimes, a little. Any smell clears as the sealant cures, and ventilation helps.
Do you guarantee your work?
Yes. All our work carries our one-year guarantee.
When something else is needed
It helps to know what we can’t do:
- A wall that is not a fire-resisting element to begin with
- Certifying a building or signing off its fire safety
- Fire doors that need new seals, closers or hardware
Not sure which it is? You can ring 0345 464 0079 or send us an email and we will tell you honestly.
Where we work in River
- Pipe & cable gaps
- Service penetrations
- Linear gaps
- Plasterboard & masonry
- Door frames
- Flats & HMOs
How the visit works
On the day, we look over the joints with you first, so there are no surprises. Surfaces next to the work are protected before any work begins. The work generally takes from a few hours to a few days, depending on the number of gaps and the access. In a small place like River, 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.
Getting ready for the visit
- Let us know about parking restrictions
- Tell us about access, such as stairs, a lift or high-level joints
- Plan for the work area to be out of bounds to pets and children
How to get a quote
There’s no standard price list. Instead, your job gets its own clear quote. To arrange one, ring 0345 464 0079 or drop us an email.
Related advice
Workplaces and buildings in River
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 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 Peter, service openings in its walls need the right fire-rated sealant, as in any building.
River is about 12 miles east of Petersfield, in West Sussex. Our applicators cover fire rated sealant for householders, landlords and businesses in River, as part of our work across West Sussex. Our West Sussex coverage runs to 371 places, and River is one of them. Our Crawley page covers work nearby.
Jobs for fire rated sealant in GU28 works the same way as everywhere else we cover. If you’re just outside River, we cover Upperton (1 mile east), Selham (2 miles south), Tillington (2 miles south-east), South Ambersham (2 miles south-west) and Hampers Green (2 miles east). Within a short drive, we also cover Bognor Regis (14 miles south), Chichester (12 miles south-west), Littlehampton (14 miles south-east), Rustington (15 miles south-east), Storrington (11 miles south-east) and Billingshurst (9 miles east).
Landmarks near River
Typical jobs here are in homes near The Hollist Arms Public House. Nearby you will also find Lodsworth Castle (1.3 miles south) and Coultershaw Heritage Site (3 miles south-east). The countryside around River includes Graffham Common and Blackdown.