Buckinghamshire · England
Horn Hill Fire Rated Sealant
Our applicators work in Horn Hill on intumescent and fire-rated sealant around gaps, frames and service penetrations. Old sealant removed completely, joints prepared properly and a one-year guarantee.
- Standard silicone or caulk in a fire-stopping gap
- Linear gaps at the head of walls
- Gaps flagged on a fire risk assessment
Fire rated sealant for homes and businesses in Horn Hill
Intumescent sealant looks much like any other sealant until it gets hot; then it swells to help close the gap. The right product depends on the gap size, the substrate and what passes through, so we work to the manufacturer’s details. We are often asked to deal with holes left by a change of layout and gaps filled with a product that isn’t fire-rated, across plasterboard & masonry, linear gaps and pipe & cable gaps.
In a village or hamlet like Horn Hill, commercial work is more likely to be a pub, a farm shop, holiday lets or a village hall than an office block. They all have washrooms, kitchens and service openings that need the right sealant.
A one-year guarantee comes with the work, just as it does everywhere we cover.
- Location
- Horn Hill (SL9)
- Region
- Buckinghamshire
- Cover
- 12 months on all our work
- Quotes
- A clear price before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
FAQs for Horn Hill
Will you come out to Horn Hill?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Can you help a landlord with a rental near Chorleywood station?
Yes, landlords and agents are among the people we work for. Just ring 0345 464 0079 or email us with the address and what needs doing, and we will give you a clear quote.
Are you fully insured?
Yes. We’re fully insured.
Can you give us a record of the work?
Yes. When the job is done, we give you the locations and products. If you need pictures or a set layout, ask when you get a quote.
Should I try DIY first?
You can, for simple jobs. Preparation is everything: all the old sealant out, and a clean, dry joint. If it does not work out, we can redo it.
Where is Mr Mastic based?
We’re based in Crawley, West Sussex, and we work across South East England, London and Scotland.
Do you seal gaps around fire door frames?
Yes, where the gap suits a sealant detail. Our work is the gap around the frame.
What should I tell you?
Where the job is, what the problem is and roughly how big it is. Photos by email help too.
Honest limits
In fairness, there are a few things sealant will not fix:
- Big openings where sealant alone isn’t the tested solution
- Assessing a building’s fire safety
- Issuing a fire rating or certificate for a building
Not sure which it is? You can phone 0345 464 0079 or send us an email and we’ll tell you honestly before you book.
Surfaces we seal
- Plasterboard & masonry
- Pipe & cable gaps
- Door frames
- Flats & HMOs
- Service penetrations
- Linear gaps
For landlords and businesses
Landlords and letting agents in Horn Hill can book us as well as householders. Resealing between tenancies keeps a property looking cared for before the next move-in.
We also work for property managers and facilities teams in Horn Hill and across Buckinghamshire. Several sites can go on one quote, and we’re fully insured.
How it works
There isn’t much for you to do on the day. Point us to the joints and we’ll get on with it. The work itself takes from a few hours to a few days, depending on the number of gaps and the access, including the tidy-up. For a village or hamlet like Horn Hill, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- Before starting, we go through the specification or action list with you.
- Each gap is measured and its substrate and service noted.
- Any non-fire-rated filler is removed.
- We fit backing where needed and apply the fire-rated sealant to depth.
- We hand over a list of locations and products for your files.
Getting ready for the visit
- Let us know if you’ve seen damp or leaks
- Let us know about stairs, lifts or work at height
- Where the joints are inside, avoid wetting them before we arrive
Ask for a quote
If you are in Horn Hill and need fire rated sealant, phone 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
Advice
Towns and villages near Horn Hill
Other services in Horn Hill
Signs you need fire rated sealant in Horn Hill
Gaps around door frames are easily missed. The architrave hides the gap between frame and wall, so it can be left open when a door is replaced.
It’s worth asking for a quote if you see:
- Open gaps behind door architraves
- Old fire sealant that has split or come away
- Damaged fire sealant left by other trades
- Standard silicone or caulk in a fire-stopping gap
If you let a flat or house near Chorleywood station, new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant.
What to look for in a quote
- Whether you can choose the colour
- How much experience the applicator has
- What happens if they find a problem under the old sealant
- Is the old sealant removed completely?
Keeping the joints in good condition
How long the joints last depends on use and care. We suggest:
- Include hidden areas like risers in routine checks
- Don’t fill fire-stopping gaps with ordinary foam or silicone
- Keep the record of products and locations with your fire safety documents
- Check whether a sealant can be painted before decorating over it
Do not drill through or remove a fire seal without putting it back properly. If you need new services through a sealed wall, plan the fire stopping as part of the job.
When you plan work that goes through walls or ceilings, plan the fire stopping too. Catching it then saves a separate visit later.
What the job involves on each surface
Masonry and concrete
Core-drilled and broken-out holes in concrete are often irregular. We measure the gap at its widest point against the product’s tested range.
Plasterboard walls
Holes in plasterboard are often cut roughly for services. Where a hole is bigger than the sealant’s tested range, it needs another approach, and we’ll tell you.
Fire rated sealant in Horn Hill: local notes
Workplaces and the common parts of blocks of flats in England need a fire risk assessment under the Regulatory Reform (Fire Safety) Order 2005, and gaps around services are often picked up there. We work to the specification you are given, installing the product to its tested details.
Community buildings like St Paul's are part of the picture too: gaps around pipes and cables are worth checking after any building work there. Schools such as Maple Cross Junior Mixed Infant and Nursery School are buildings too, and service openings in fire-resisting walls need checking after any refurbishment.
Horn Hill is about 3 miles south-west of Rickmansworth, in Buckinghamshire. From the centre of Horn Hill to the outskirts, fire rated sealant is available for homes and businesses alike. 263 places in Buckinghamshire are on our list, from the larger towns to small villages. There’s also a page for London, roughly 21 miles from Horn Hill.
Every address in SL9 is within our area for fire rated sealant, from the main roads to the quietest streets. If you need fire rated sealant at a property on Shire Lane, Rickmansworth Lane and Roberts Lane or a nearby road, our applicators can take on the job. Other places close to Horn Hill include Maple Cross (1 mile east), Chalfont Common (1 mile west), West Hyde (1 mile south-east), Heronsgate (1 mile north) and Chalfont St Peter (2 miles south-west). We also work in nearby towns such as High Wycombe (9 miles west), Chesham (7 miles north-west), Marlow (11 miles west), Amersham (5 miles north-west), Beaconsfield (5 miles west) and Princes Risborough (15 miles north-west).
Landmarks near Horn Hill
Typical jobs here are in homes near The Dumb Bell pub, among other places. For rail, the closest station is Chorleywood station, about 2.3 miles north of the centre. Nearby you will also find Chiltern Open Air Museum (1.1 miles north-west) and Chalfonts and Gerrards Cross Hospital (1.7 miles south-west). For a walk, there’s Pynesfield Lake and Northmoor Hill Wood.
Should I try it myself first?
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.