Kent · England
Fire-rated sealant in Knave's Ash, Kent
Fire-stopping gaps in Knave's Ash need attention? We remove the old material, prepare the joints and seal them properly.
- Unsealed gaps where pipes and cables go through a wall
- Sealant items on a fire risk assessment action list
- Fire seals that have cracked with movement
When to call us in Knave's Ash
Gaps also open up as buildings move: cracked or debonded sealant leaves an open route through the wall. Damage from cleaning, knocks and maintenance adds to it.
If you can see any of these, it’s time to have the joints looked at:
- Unsealed gaps around fire door frames
- Gaps flagged on a fire risk assessment
- Ordinary sealant used where a fire-rated product was needed
- Fire seals that have cracked with movement
If you let a flat or house near Herne Bay station, fire-rated sealant around pipes and cables through walls and floors needs making good whenever new services go through.
Questions to ask before you book
- What the cure time is
- Whether the sealant suits the joint
- What guarantee comes with the work
- Which colour the sealant will be
Fire rated sealant for homes and businesses in Knave's Ash
Ordinary silicone or decorators’ caulk in a fire-stopping gap isn’t a fire-rated seal. Anything unsuitable comes out first and the gap is resealed with a product tested for that use. Typical jobs include holes left by a change of layout and unsealed gaps where pipes and cables go through a wall, on flats & HMOs, plasterboard & masonry and door frames.
In a village or hamlet like Knave's Ash, 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.
Whatever the size of the job, you get the same one-year guarantee.

- Where
- Knave's Ash (CT3)
- Region
- Kent
- Guarantee
- A year, on every job
- Quote
- A clear price before we start
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Should I try it myself first?
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.
Fire rated sealant around Knave's Ash
If you run a hotel, guest house or holiday let in a coastal place like Knave's Ash, heavy use in the busy months is hard on washroom and kitchen sealant, and any building work there should leave fire-rated joints made good. 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 apply fire-rated sealant to the assessor’s or designer’s specification and the product’s tested details.
Managing a site like Hoath Primary School? Then service openings in fire-resisting walls need checking after any refurbishment. If you look after a church, hall or community building such as Church of the Holy Cross, older buildings that have had new heating or wiring often have service gaps worth checking.
Knave's Ash is about 2 miles south of Herne Bay, in Kent. Wherever you are in the CT3 postcode area, we can carry out fire rated sealant at your property. Our Kent coverage runs to 922 places, Knave's Ash among them. You can also see our page for Chelmsford, roughly 40 miles from Knave's Ash.
Jobs for fire rated sealant in CT3 is quoted and booked the same way as anywhere else. You’ll find streets such as Hicks Forstal Road and Hoath Road. Neighbouring places we cover for fire rated sealant include Hoath (1 mile east), Maypole (1 mile north-east), Old Tree (1 mile north-east), Millbank (1 mile north-east) and Hicks Forstal (1 mile west). Within a short drive, we also cover Canterbury (5 miles south-west), Margate (10 miles east), Dover (15 miles south-east), Ramsgate (11 miles east), Broadstairs (12 miles east) and Whitstable (5 miles west).
Local landmarks in Knave's Ash
In Knave's Ash, that means homes and buildings near Curtis Wood and Spires Academy. For rail, the closest station is Herne Bay station, roughly 2.6 miles north-west. A little further out are St Martins Hospital (4.4 miles south-west). The countryside around Knave's Ash includes West Blean and Thornden Woods.
Also in Knave's Ash
Keeping the joints in good condition
To keep the joints looking good and working properly:
- Tell trades working in the building that fire seals must be put back
- Store the list of sealed gaps with your building paperwork
- Allow for resealing whenever new services are run
- Look in service cupboards and ceiling voids from time to time
Avoid covering a sealed gap with anything that is not part of the tested detail. Repairs should use a matching fire-rated product. We can tell you which product we used.
When you plan work that goes through walls or ceilings, plan the fire stopping too. Catching it then saves a separate visit later.
When something else is needed
In fairness, some problems need a different trade:
- Problems with the door itself rather than the gap around the frame
- Deciding what fire stopping a building needs
- A wall that isn’t a fire-resisting element to begin with
If you are not sure, just phone 0345 464 0079 or email us and we’ll give you a straight answer before booking.
What we seal
- Flats & HMOs
- Door frames
- Pipe & cable gaps
- Plasterboard & masonry
- Service penetrations
- Linear gaps
FAQs for Knave's Ash
I let a flat near Herne Bay station. Can you help?
Yes, we work for letting agents and landlords. You can phone 0345 464 0079 or send us an email with the address and a few details, and we’ll give you a fixed price before we start.
Is Knave's Ash in your area for fire rated sealant?
Yes. Our work covers London and the South East, and Knave's Ash is part of that. Just phone 0345 464 0079 or email us with a few details of the job.
Are you ARBOMaster approved?
Yes. Mr Mastic is an ARBOMaster approved applicator, and we are fully insured.
Is there any odour?
Some sealants have a smell while they cure. Ventilation helps.
Can new sealant go over the old?
No. We remove every bit of old sealant first, so the new sealant bonds properly.
How do I get a quote for fire rated sealant in Knave's Ash?
It depends on the job, so we quote each one individually. To get one, phone 0345 464 0079 or drop us an email and tell us what needs doing and where.
How long does the job take?
That depends on how much there is to do, but as a guide it takes from a few hours to a few days, depending on the number of gaps and the access. We’ll tell you when we quote.
Is it worth trying it myself?
You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. We can always put it right if it fails.
Surface by surface
Door frames
The gap between a door frame and the wall around it needs sealing as well as the door itself. We seal that gap with a fire-rated sealant suited to the frame and wall.
Masonry and concrete
Preparation counts on brick, block and concrete. We brush and vacuum the gap and use backing where the detail needs it before applying the sealant.
Why it’s worth doing now in Knave's Ash
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 sealing itself is often a contained piece of work. Around Knave's Ash, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Homes and businesses are quoted the same way: the amount of work, the access and the products needed, along with when we can work on site. Call for a quick quote and we’ll go through it with you.
Why choose Mr Mastic in Knave's Ash
- Sanitary silicone with an anti-fungal additive in wet areas
- 180+ five-star Google reviews
- More than 20 years in sealant work
- Trusted Arbo and Everbuild sealants
How it works
You don’t need to clear the whole room or building, 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 in most cases. In a small place like Knave's Ash, access is usually the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- First we work through your list or survey, measuring each gap and checking what it’s formed in.
- Anything that isn’t fit for the job comes out, and the gap is cleaned.
- Backing or fill is fitted where the product’s tested detail calls for it.
- Fire-rated or intumescent sealant is applied to the right depth and tooled.
- Finally, we list where we worked and what we used, for your records.
How to prepare
- Let us know about stairs, lifts or work at height
- Plan for the work area to be out of bounds to pets and children
- For business premises, tell us about site rules or sign-in
Getting a quote
Want a quote for fire rated sealant? Please call 0345 464 0079 or drop us an email and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.
