Kent · England

Fire-rated sealant in Coxheath, Kent

Fire rated sealant in Coxheath from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.

  • Gaps flagged on a fire risk assessment
  • Cracked or shrunken fire-rated sealant
  • Gaps left after a refit or conversion

Trusted fire rated sealant in Coxheath

Aftercare tips

Aftercare is simple, and it makes a real difference:

  • Look in service cupboards and ceiling voids from time to time
  • Check whether a sealant can be painted before decorating over it
  • Plan fire stopping into any work that goes through walls or floors
  • Store the list of sealed gaps with your building paperwork

Don’t add foam, filler or ordinary sealant over a fire seal. If it needs repair, use the same type of product. We can tell you which product we used.

It’s easiest to seal gaps while they’re few and easy to reach. Leave them and each new job adds another hole and the list grows.

Fire rated sealant for homes and businesses in Coxheath

Later work by other trades often breaks through fire stopping, especially in flats, HMOs, offices and schools. One new cable or pipe can leave a gap that nobody goes back to seal. Those are the gaps we close, using a tested fire-rated product. We work on door frames, flats & HMOs and linear gaps, and the jobs we see most are standard silicone or caulk in a fire-stopping gap and old fire sealant that has split or come away.

Community buildings, schools and small businesses around places like Coxheath have washrooms and kitchens that see a lot of use. Sealant and fire-rated joints there matter as much as in any larger building.

Big or small, it’s backed by our 12-month guarantee.

Place
Coxheath (ME17, ME15)
Wider area
Kent
Guarantee
One year on every job
Quotes
Quoted before any work starts
Telephone
0345 464 0079
Last updated
26 October 2026
The Mr Mastic team in navy uniforms in front of three Mr Mastic vans

Fire rated sealant in Coxheath: 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, 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.

For landlords with property near East Farleigh station, any gap left by new services in shared walls should be closed with a fire-rated product. Community buildings like Holy Trinity Church are part of the picture too: older buildings that have had new heating or wiring often have service gaps worth checking.

Coxheath is about 3 miles south-west of Maidstone, in Kent. We carry out fire rated sealant for householders, landlords and businesses in Coxheath and nearby. 922 places in Kent are on our list. London is on our list too, around 31 miles away.

Every address in ME17 and ME15 is within our area for fire rated sealant, from the main roads to the quietest streets. Local streets include Westway, Stockett Lane and Orchard Close, all of which we cover. We also cover the places around Coxheath: Dean Street (1 mile north), East Farleigh (1 mile north-west), Farleigh Green (2 miles north-west), Kettle Corner (2 miles north-west) and Hunton (2 miles south-west). Within a short drive, we also cover Maidstone (3 miles north-east), Sittingbourne (13 miles north-east), Sevenoaks (14 miles west), Royal Tunbridge Wells (12 miles south-west), Gravesend (14 miles north) and Tonbridge (10 miles west).

Local landmarks in Coxheath

Locally, jobs take us to homes and businesses close to The Horse Shoes Public House, Cornwallis Academy and Quarry Wood. The closest station to Coxheath is East Farleigh station, about 1.5 miles north. A little further out are The Mall Maidstone (3 miles north-east) and Oakwood Hospital (2.4 miles north).

Map of Coxheath © OpenStreetMap contributors

DIY sealant or a professional job?

Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.

Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.

The process

On the day, there’s very little for you to do. Point us to the joints and we’ll get on with it. The job generally takes a few hours for a handful of gaps, and longer for a whole building. In a smaller place like Coxheath, parking is seldom the issue; lanes, gates and long drives are worth mentioning. If the job is outside, tell us about side access and how high the joints are.

  1. We begin by agreeing the list of gaps from your assessor’s or designer’s requirements.
  2. We measure every gap and note what it’s in and what passes through.
  3. Any non-fire-rated filler is removed.
  4. We fit backing where needed and apply the fire-rated sealant to depth.
  5. Every location is recorded with the product used for your records.

Preparing for the visit

  • Let us know about stairs, lifts or work at height
  • Try not to wet indoor joints just before the visit
  • Clear items away from the joints we are working on

Getting a quote

Asking for a quote is easy: let us know what needs doing and where and its rough size. Photos by email help us understand the job, and we’ll come back to you with a quote.

Get a price

Read more

Questions from Coxheath

Will you come out to Coxheath?

Yes, Coxheath is covered. 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.

Do you cover Coxheath for fire rated sealant?

Yes. We work across London and the South East, and Coxheath is part of that. Just ring 0345 464 0079 or drop us an email with a few details of the job, and we’ll give you a clear price.

Where is Mr Mastic based?

Our base is Crawley. We work across South East England, London and Scotland.

Can I do it myself?

It depends on the job. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional, while a short indoor joint may be within reach.

Can ordinary silicone be used in a fire-stopping gap?

No. It looks sealed but won’t perform as fire stopping. A tested fire-rated product is needed and we can apply it for you.

Do you take out the old sealant first?

Always. Sealing over the old bead is the commonest cause of early failure, so we never do it.

What do you put in the joint?

The product depends on the job: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. Brands we use include Arbo and Everbuild.

Do you take on fire stopping in schools and offices?

Yes. We work in flats, HMOs, schools, offices and other commercial buildings, including occupied ones. We agree access and the order of work with you first.

Quotes for fire rated sealant in Coxheath

Your quote is based on your job. We look at:

  • The size of the job
  • How much old sealant there is and how hard it is to remove
  • Whether there’s mould to deal with
  • The product the joint needs

Homes and businesses are quoted the same way: the amount of work, how we reach it and what it needs, plus any working-time requirements on site. Call for a quick quote and we’ll go through it with you.

Helping us quote

To help us quote quickly, please include:

  • Any access issues, like height or stairs
  • The address or postcode of the job
  • If it’s domestic, commercial or a hotel
  • Whether it has been sealed before

Need a quote? Please call 0345 464 0079 or drop us an email with a few details. We’ll explain what we’d do and give you a clear quote before work begins.

Why deal with it now?

Fire-rated sealants are less forgiving than ordinary ones. How it’s installed changes how it performs, so we follow the maker’s details on every gap. In an older home around Coxheath, damp from a failed joint can get into timber and plaster, which is far harder to put right than the sealant itself.

A few things move the cost up or down: how much old sealant there is and how stubborn it is, any mould to treat, and whether the work is at height. Your quote takes all of that into account.

Why us?

  • Approved under the ARBOMaster scheme
  • More than 20 years in sealant work
  • We never seal over old sealant
  • Experience in homes, commercial sites and hotels

Read our cost guide and what customers say.

What we are called out for in Coxheath

A lot of fire stopping is out of sight: above ceilings, inside risers and behind panels. Out of view, damage sits unnoticed until someone inspects.

Any of these means the joints need attention:

  • Ordinary sealant used where a fire-rated product was needed
  • Open joints along the top of partitions
  • Unsealed gaps around fire door frames
  • Open holes round services passing through fire walls

If you look after a building such as Coxheath Primary School, gaps opened by contractors for new cabling are a common finding in schools and offices.

What your quote should include

  • Is VAT in the price?
  • What product goes in the joint
  • When the joint can take water or movement
  • Are they insured?

10 questions to ask before you book

Surface by surface

Plasterboard walls

Plasterboard partitions are common in flats, offices and conversions. The sealant has to be one tested in plasterboard for each gap size.

Masonry and concrete

For masonry and concrete, we use a product tested in that substrate. We clean out dust and debris before sealing so the sealant bonds.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job