Kent · England

Boxley Fire Rated Sealant

Our applicators work in Boxley on intumescent and fire-rated sealant around gaps, frames and service penetrations. Old material cut out, joints cleaned and sealed neatly.

  • Seals cut through by electricians, plumbers or data installers
  • Unsealed gaps where pipes and cables go through a wall
  • Cracked or shrunken fire-rated sealant

Fire rated sealant in Boxley

Boxley questions

Will you come out to Boxley?

Yes, smaller places are covered as well as towns. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.

Can you do fire rated sealant in Boxley?

Yes. Our work covers London and the South East, and Boxley 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 quote.

Is it messy?

We keep the work tidy. Nearby surfaces are protected, and the area is left clean when we finish.

Is intumescent sealant the same as fire-rated sealant?

An intumescent sealant expands when it gets hot to help seal the gap. It’s one type of fire-rated sealant; which product suits depends on the gap, the substrate and the service.

Will the old sealant be removed?

Yes, always, and completely. New silicone doesn’t stick to old silicone, so any old material comes out before anything new goes in.

Can you fill the gap behind a fire door frame?

Yes. We seal the gap between the frame and the wall with a suitable fire-rated product. The door, its seals and closer are for a door specialist.

Are you ARBOMaster approved?

Yes. Mr Mastic is an ARBOMaster approved applicator, and we are fully insured.

Is standard sealant good enough for a fire gap?

No. It looks sealed but will not perform as fire stopping. Use a product tested for that gap and service.

Fire rated sealant for homes and businesses in Boxley

Deciding which gaps need fire stopping isn’t our role; your assessor, designer or building control sets that out. What we do is apply the right product to that specification, properly and neatly. We work on linear gaps, service penetrations and plasterboard & masonry, and the jobs we see most are linear gaps at the head of walls and open gaps behind door architraves.

For a small place like Boxley, the journey and timings are agreed in advance, so the job can fit around bookings, guests or opening times where possible.

There’s a 12-month guarantee on every job.

Place
Boxley (ME14)
Wider area
Kent
Cover
12 months on all our work
Price
Quoted before any work starts
Phone
0345 464 0079
Updated
26 October 2026
Eleven members of the Mr Mastic team standing in front of branded white vans

What we do, step by step

At the end, we look at the finished work together. The work normally takes a few hours for a handful of gaps, and longer for a whole building, depending on the amount of work. Somewhere as small as Boxley, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.

  1. We plan the order of work and access, floor by floor or flat by flat.
  2. Old, damaged or unsuitable sealant is removed.
  3. Gaps are cleaned of dust and loose material.
  4. The fire-rated or intumescent sealant is applied and tooled to the tested detail.
  5. Locations and products are written up and any gaps unsuitable for sealant are flagged.

Before we arrive

  • Mention if the joints have been sealed before
  • Where the joints are inside, avoid wetting them before we arrive
  • Let us know if you’ve seen damp or leaks

Getting a quote

Need a quote? Please call 0345 464 0079 or drop us an email and tell us about the job. You’ll know what we plan to do, and what it will cost, before any work begins.

Get a quick quote

Advice

How the job changes by surface

Door frames

Our work is the joint between frame and wall. The door leaf, its seals and closer need a door specialist and we’ll mention anything we notice.

Service penetrations

Different services need different details: metal pipes, cables and plastic pipes are not treated the same. We follow the manufacturer’s tested detail for each.

What affects the cost of fire rated sealant

We do not publish a price list, because jobs vary so much. What we look at:

  • Whether the work is at height
  • The amount of work
  • Which sealant suits the joint
  • How many areas need sealing

The cost depends on how much there is to do, how much old material has to come out and access to the work. We give a clear quote before any work starts.

Asking for a quote

When you call or email, it’s useful to know:

  • A few pictures by email, if you can
  • Access, such as stairs, a lift or height
  • Whether it has been sealed before
  • What the problem is, such as mould, gaps, leaks or cracking

It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we’ll explain how we’d tackle it. Whenever you’re ready, call 0345 464 0079 or drop us an email.

Why deal with it now?

Items left open on a fire risk assessment tend to come back at the next review. Getting them done and written up means you can show the action was taken. Where a wall is exposed, as many are in small places like Boxley, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.

We don’t show prices on the website, because each job is priced on what it involves. Call for a quick quote and we’ll talk you through it.

Why book with us

  • Full insurance on every job
  • ARBOMaster approved applicator
  • Rated 4.9 stars on Google
  • Over 20 years’ experience

Read how sealant jobs are priced and what customers say.

Landlord and commercial work in Boxley

We also work for property managers and facilities teams. We can quote a run of properties together, and we are fully insured.

Landlords and agents in Boxley can book us as well as householders. Sealant work between tenants keeps a property looking cared for.

What we are called out for in Boxley

Movement in the structure can open gaps too: cracked or debonded sealant leaves an open route through the wall. Knocks, maintenance and building work damage it further.

Common reasons people contact us are:

  • Fire stopping disturbed by later work
  • Gaps flagged on a fire risk assessment
  • New service routes left unsealed after building work
  • Gaps around pipes and cables through fire-resisting walls

For buildings such as St Mary's and All Saints Church, older buildings that have had new heating or wiring often have service gaps worth checking.

Before you book anyone

  • Who does the work, and how experienced they are
  • Whether you can choose the colour
  • Is VAT in the price?
  • What guarantee comes with the work

10 questions to ask before booking

When something else is needed

Sealant isn’t the answer to every problem, and we’d rather say so up front. It will not solve:

  • Certifying a building or signing off its fire safety
  • Fire doors that need new seals, closers or hardware
  • A wall that is not a fire-resisting element to begin with

If in doubt, ring 0345 464 0079 or drop us an email and we’ll say what we think before you book.

What we seal

  • Plasterboard & masonry
  • Service penetrations
  • Door frames
  • Linear gaps
  • Pipe & cable gaps
  • Flats & HMOs

Commercial buildings in Boxley

Workplaces and the common parts of blocks of flats in England need a fire risk assessment under the Regulatory Reform (Fire Safety) Order 2005, 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.

If you look after a building such as Sandling Primary School, service openings in fire-resisting walls need checking after any refurbishment. Letting a property close to Maidstone East station? Then fire-rated sealant around pipes and cables through walls and floors needs making good whenever new services go through.

Boxley is about 3 miles north of Maidstone, in Kent. Jobs in Boxley get the same care as everywhere else we work: old sealant removed completely, careful preparation and a one-year guarantee. We cover 922 towns and villages across Kent, large and small. For nearby work, see our Chelmsford page.

We cover every part of the ME14 postcode area for fire rated sealant and the streets around it. Streets in the area include The Street, Styles Lane and Pilgrims Way, and we cover them all. Other places close to Boxley include Dunn Street (2 miles north-east), Lidsing (2 miles north-east), Kit's Coty (2 miles north-west), Lordswood (2 miles north) and Scragged Oak (2 miles north-east). Within a short drive, we also cover Maidstone (3 miles south), Sittingbourne (9 miles east), Gravesend (11 miles north-west), Tonbridge (14 miles south-west), Faversham (15 miles east) and Northfleet (12 miles north-west).

What’s near Boxley

Typical jobs here are in homes near Valley Park School, The King's Arms and The Larches and the streets around them. The closest station to Boxley is Maidstone East station, about 2.2 miles south-west of the centre. Other landmarks nearby include KIMS hospital (1.4 miles south) and Allington Castle (1.6 miles south-west). For a walk, there’s Burham Down and Boxley Hills.

Map of Boxley © OpenStreetMap contributors
20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job