Hampshire · England
Wyck Fire Rated Sealant
Intumescent and fire-rated sealant around gaps, frames and service penetrations in Wyck, with a 12-month guarantee on every job. Ask us for a quote.
- Fire seals that have cracked with movement
- Gaps around pipes and cables through fire-resisting walls
- Seals cut through by electricians, plumbers or data installers
Fire rated sealant in Wyck
Ordinary silicone or decorators’ caulk in a fire-stopping gap is not a fire-rated seal. Anything unsuitable comes out first and the gap is resealed with a product tested for that use. Common call-outs are for linear gaps at the head of walls and seals cut through by electricians, plumbers or data installers, across linear gaps, door frames and flats & HMOs.
If you have holiday lets, a converted barn used for business or a community building near Wyck, washroom and kitchen sealant and any fire-rated joints need the same attention as anywhere.
A one-year guarantee comes as standard, so you are not left on your own once the job is done.
- Place
- Wyck (GU34)
- Region
- Hampshire
- Cover
- One year on every job
- Quote
- A clear price before we start
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026

Fire rated sealant in Wyck: 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 work to the specification you’re given, installing the product to its tested details.
For buildings such as Church of St Mary, gaps around pipes and cables are worth checking after any building work there. For landlords with property near Alton station, any gap left by new services in shared walls should be closed with a fire-rated product. For site and facilities teams at buildings such as Binsted Church of England Primary School, fire-stopping around service openings should be restored whenever new services go in.
Wyck is about 3 miles east of Alton, in Hampshire. Jobs in Wyck get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Across Hampshire, we cover 683 places, and Wyck is one of them. We also work in Reading, about 21 miles from Wyck.
All of GU34 is covered for fire rated sealant, from the main roads to the quietest streets. Other places close to Wyck include East Worldham (1 mile south-west), Neatham (1 mile north-west), Holybourne (2 miles north-west), Upper Froyle (2 miles north) and Hartley Mauditt (2 miles south-west). Within a short drive, we also cover Basingstoke (11 miles north-west), Farnborough (12 miles north-east), Fleet (9 miles north), Aldershot (10 miles north-east), Alton (3 miles west) and Petersfield (10 miles south).
Around Wyck
We work in homes and buildings around Eggar's School. The nearest railway station is Alton station, about 2.2 miles west of the centre. A little further out are Alton Community Hospital (3.2 miles west) and Barley Pound (5 miles north-east). The countryside around Wyck includes Deadwater Valley and Holybourne Hill.
Also in Wyck
Leave it or put it right?
An unsealed gap lets smoke and fire get round a wall that was built to hold them back. A proper seal lets the wall do its job again, and the work involved is often modest. Older cottages and farmhouses around Wyck can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether we need extra access for height. Your quote takes all of that into account.
Why choose Mr Mastic in Wyck
- An ARBOMaster approved applicator
- 12-month guarantee on every job
- Anti-fungal silicone where joints get wet
- Any old sealant cut out fully, not covered over
Keeping the joints in good condition
No joint lasts for ever, but care makes a real difference. Our tips:
- Get damaged fire seals looked at promptly
- Ask every contractor to reseal any fire stopping they disturb
- Photograph sealed gaps before they’re covered up
- Check risers, ceiling voids and cupboards during building checks
Don’t drill through or remove a fire seal without putting it back properly. New services through a sealed wall should include fire stopping in the plan.
A gap left open in a fire-resisting wall or floor lets smoke spread in ways the building wasn’t designed for. Closing it is usually a straightforward job.
Can I do it myself?
The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is.
Common questions in Wyck
Is Wyck in your area for fire rated sealant?
Yes. Our work covers London and the South East, and Wyck is part of that. Just call 0345 464 0079 or email us with a few details of the job.
Do you cover smaller places like Wyck?
Yes. Wyck is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Where do you work from?
Our base is Crawley, with over 20 years’ experience. Our area covers South East England, London and Scotland.
Will there be a smell?
There can be a smell while the sealant cures, which fades as it sets. Opening a window helps.
Can I choose the sealant colour?
Yes. Sealants come in white, clear, grey and other colours, and we agree the colour with you before work begins.
I rent my home. Can I book you?
Yes, but check with your landlord or agent first. Many landlords are glad to have it sorted.
Is intumescent sealant the same as fire-rated sealant?
Intumescent means it swells when heated to help seal the gap. Intumescent sealants are one kind of fire-rated sealant; the right one depends on the gap and what passes through it.
How long does fire rated sealant take?
Most jobs take anything from a few hours to several days, depending on how many gaps there are. Your quote will say how long we expect yours to take.
When it isn’t the sealant
It helps to know what we cannot do:
- Walls or floors that weren’t built to resist fire
- Openings too large for sealant, which need batts, boards or another system
- Issuing a fire rating or certificate for a building
Not sure which it is? You can ring 0345 464 0079 or email us and we will tell you honestly before you book.
What we seal
- Plasterboard & masonry
- Service penetrations
- Pipe & cable gaps
- Linear gaps
- Door frames
- Flats & HMOs
What we do, step by step
A visit follows a simple pattern: we check the joints, mask and protect the surrounding surfaces, carry out the job and clear up. Most jobs take anything from a few hours to several days, depending on how many gaps there are. For a village or hamlet like Wyck, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- 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.
Preparing for the visit
- Plan for the work area to be out of bounds to pets and children
- Clear items away from the joints we’re working on
- Let us know about stairs, lifts or work at height
Get a quote
Every job is quoted individually. Just call 0345 464 0079 or email us with the details, and pictures are welcome.
Read more
Landlord and commercial work in Wyck
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we’ll give you a quote.
For anyone letting property in or around Wyck, jobs at different addresses can be quoted together. Send us the addresses and the work at each.
How the job changes by surface
Linear gaps
Head-of-wall gaps are often hidden above suspended ceilings. We work along the whole run leaving no stretch unsealed.
Masonry and concrete
Brick, block and concrete walls and floors are sealed with products tested in masonry. The gap is cleaned of dust first.
