West Sussex · England
South Ambersham Fire Rated Sealant
Intumescent and fire-rated sealant around gaps, frames and service penetrations for homes and businesses in South Ambersham and across West Sussex. Fully insured, ARBOMaster approved and guaranteed for a year.
- Ordinary sealant used where a fire-rated product was needed
- Sealant items on a fire risk assessment action list
- Gaps around pipes and cables through fire-resisting walls
Fire rated sealant in South Ambersham, done properly
In flats, HMOs, offices and schools, fire stopping is often disturbed by later work. A new cable run or a replaced pipe can leave an open hole behind. Those are the gaps we close, using a tested fire-rated product. If you’re dealing with gaps flagged on a fire risk assessment and open holes round services passing through fire walls, we can put it right, whatever the surface.
In a village or hamlet like South Ambersham, commercial work is more likely to be a pub, a farm shop, holiday lets or a village hall than an office block. Each still needs sound sealant in its washrooms and kitchens, and fire-rated joints where services pass through walls.
We stand behind the work with a one-year guarantee.
- Location
- South Ambersham (GU29)
- Wider area
- West Sussex
- Guarantee
- 12 months on all our work
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026

South Ambersham questions
Is South Ambersham in your area for fire rated sealant?
Yes, South Ambersham is within the area we cover. We work across London and the South East. You can phone 0345 464 0079 or send us an email and tell us what needs doing.
Is South Ambersham within the area you cover?
Yes, we do. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Can I choose the sealant colour?
We help you choose a colour that suits, from white and clear to greys and other shades. The product needed can limit the range.
What’s the difference between intumescent and fire-rated sealant?
An intumescent sealant expands when it gets hot, helping close the gap. Intumescent sealants are one kind of fire-rated sealant; which product suits depends on the gap, the substrate and the service.
How long will you be here?
Most jobs take a few hours for a handful of gaps, and longer for a whole building, including preparation and clearing up. Your quote will say how long we expect yours to take.
Are you fully insured?
Yes. We’re fully insured, and we can confirm the details when we quote.
Where are you based?
Mr Mastic is based in Crawley. Our applicators cover South Ambersham.
Can you quote for more than one area?
Yes, we can. Several rooms, windows or areas can go on one quote.
What the job involves on each surface
Service penetrations
Different services need different details: metal pipes, cables and plastic pipes aren’t treated the same. We follow the manufacturer’s tested detail for each.
Masonry and concrete
Preparation counts on brick, block and concrete. We brush and vacuum the gap and use backing where the detail needs it.
Signs you need fire rated sealant in South Ambersham
In some buildings the gap was filled with the wrong thing in the first place: ordinary expanding foam, standard silicone or decorators’ caulk in a place that needed a tested fire seal. It may look fine, but it isn’t a fire-rated seal.
The most common problems we see are:
- Cracked or shrunken fire-rated sealant
- Joints picked up in a fire-stopping survey
- New service routes left unsealed after building work
- Door frames with gaps between frame and wall
If you look after a building such as Midhurst Rother College, fire-stopping around service openings should be restored whenever new services go in.
Before booking anyone
- The length of the guarantee
- How the surfaces are prepared before sealing
- Which colour the sealant will be
- Who does the work, and how experienced they are
Keeping the joints in good condition
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Ask which product was used before you paint
- Look in service cupboards and ceiling voids from time to time
- Get damaged fire seals looked at promptly
- Include fire stopping when you schedule refits
Don’t add foam, filler or ordinary sealant over a fire seal. If it needs repair, use the same type of product. Ask us if you’re not sure which product was used.
Any job that breaks through a wall or ceiling should include resealing. Doing it at the time avoids leaving gaps behind.
Fire rated sealant in South Ambersham: local notes
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 apply fire-rated sealant to the assessor’s or designer’s specification and the product’s tested details.
If you look after a church, hall or community building such as Church of St James, older buildings that have had new heating or wiring often have service gaps worth checking.
South Ambersham is about 10 miles north of Chichester, in West Sussex. We carry out fire rated sealant for homes and businesses in South Ambersham and nearby, as part of our work across West Sussex. South Ambersham is one of 371 towns and villages in West Sussex we cover. You can also see our page for Portsmouth, roughly 20 miles from South Ambersham.
Jobs for fire rated sealant in GU29 works the same way as everywhere else we cover. We also cover Selham (1 mile east), Graffham (2 miles south), River (2 miles north-east), Upperton (3 miles north-east) and Tillington (3 miles east). Within a short drive, we also cover Bognor Regis (13 miles south), Chichester (10 miles south), Littlehampton (14 miles south-east), Emsworth (14 miles south-west), Rustington (14 miles south-east) and Storrington (11 miles east).
Around South Ambersham
Other landmarks nearby include Midhurst Community Hospital (2 miles north-west) and Lodsworth Castle (1.1 miles east). Open spaces near South Ambersham include Graffham Common and Levin Down.
Why deal with it now?
For some gaps, sealant isn’t the right answer and another system is needed. Big openings, bundles of cables and plastic pipes may need batts, collars or wraps instead. We will say so if a gap needs something other than sealant. Where a wall is exposed, as many are in small places like South Ambersham, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
Combining jobs into one visit is generally more efficient than separate visits, so it’s worth mentioning everything you’d like done. You will get one clear quote for the whole job.
Why book with us
- Arbo and Everbuild products
- Fully insured
- Old sealant always removed completely
- 180+ five-star Google reviews
Take a look at what affects the cost or our reviews.
Places near South Ambersham
Other services in South Ambersham
How it works
There’s no need to move everything out, only the area right around the joints. Everything nearby is protected, and the work takes from a few hours to a few days, depending on the number of gaps and the access for a typical job. Somewhere as small as South Ambersham, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We start with the survey or action list, checking the size and surfaces of every gap.
- Old or unsuitable sealant is cut out and the gap cleaned.
- Where the tested detail needs backing or fill, we fit it.
- The sealant goes in to the depth its detail sets, then it’s tooled off.
- Locations and products are noted so you have them on file.
How to prepare
- Keep children and pets away from the work area
- Tell us if parking is tricky
- Move anything stored near the joints
Getting a quote
Getting a quote is simple: let us know the job and the location and its rough size. Photos by email help us understand the job.
Advice
Work for landlords, hotels and businesses
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. Several properties can be quoted together.
Honest limits
A few problems are outside what sealant work can do:
- Fire doors that need new seals, closers or hardware
- Deciding what fire stopping a building needs
- Certifying a building or signing off its fire safety
Not sure which it is? You can ring 0345 464 0079 or email us and we’ll tell you honestly.
Surfaces we seal
- Service penetrations
- Pipe & cable gaps
- Linear gaps
- Plasterboard & masonry
- Flats & HMOs
- Door frames
