Hampshire · England

Fire Rated Sealant in Kempshott

Intumescent and fire-rated sealant around gaps, frames and service penetrations for Kempshott, backed by a one-year guarantee. Call for a quick quote.

  • Unsealed gaps where pipes and cables go through a wall
  • Gaps filled with a product that isn’t fire-rated
  • Damaged fire sealant left by other trades

Need fire rated sealant in Kempshott?

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.

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.

Fire rated sealant in Kempshott, done properly

Door frame gaps, linear joints and holes around services all have their own details. We check the size and the substrate before choosing the product, then apply it to the depth its tested detail calls for. Typical jobs include new service routes left unsealed after building work and cracked or shrunken fire-rated sealant, across service penetrations, linear gaps and plasterboard & masonry.

For a pub, café, guest house or shop in or near Kempshott, its washrooms and kitchen need the same sealant care as any big building, and fire-rated sealant around service openings should be restored after new pipes or cables go through.

The work is covered for a year after we finish. If there’s a problem with it, please ring 0345 464 0079 or drop us an email.

Where
Kempshott (RG22, RG23)
Region
Hampshire
Guarantee
One year on every job
Quotes
Quoted before any work starts
Telephone
0345 464 0079
Updated
26 October 2026
The Mr Mastic team in navy uniforms in front of three Mr Mastic vans

Landlords, agents and businesses in Kempshott

Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.

If you manage several properties in or around Kempshott, jobs at different addresses can go on one quote. Send us the addresses and the work at each, and photos by email help.

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. In a smaller place like Kempshott, wherever a wall is exposed, a failed outside joint is a real source of damp. Inside, a split seal lets water into floors and panels just as it would anywhere.

Some things make a job bigger or smaller: 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 choose Mr Mastic in Kempshott

  • An ARBOMaster approved applicator
  • Every job guaranteed for a year
  • 4.9 on Google from 180+ five-star reviews
  • We never seal over old sealant

See our cost guide or what customers say.

When it isn’t the sealant

It helps to know what we can’t do too:

  • Assessing a building’s fire safety
  • Fire doors that need new seals, closers or hardware
  • Construction that doesn’t provide fire resistance on its own

If in doubt, call 0345 464 0079 or email us and we’ll say what we think.

What we seal

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

Signs you need fire rated sealant in Kempshott

Gaps also open up as buildings move: a seal that cracks or pulls away leaves a path for smoke. Damage from cleaning, knocks and maintenance adds to it.

These are the problems we are asked about most:

  • Damaged fire sealant left by other trades
  • Unsealed gaps where pipes and cables go through a wall
  • Gaps flagged on a fire risk assessment
  • Gaps left after a refit or conversion

For buildings such as Saint Mark's Church, older buildings that have had new heating or wiring often have service gaps worth checking.

What your quote should include

  • Whether they seal over old material or remove it
  • The length of the guarantee
  • What happens if the job turns out different
  • How long to leave it before use

Choosing a sealant specialist

Kempshott: your questions answered

Is Kempshott within the area you cover?

Yes, Kempshott is covered. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.

Is Kempshott in your area for fire rated sealant?

Yes, Kempshott is within the area we cover. Our work covers London and the South East. Just call 0345 464 0079 or send us an email with a few details of the job, and we will send you a clear quote.

Can tenants book the work?

We can work for tenants, landlords or agents. Just make sure your landlord agrees.

Where are you based?

We work from Crawley. Our applicators cover Kempshott, along with the rest of our area.

Is there a guarantee?

Yes. All our work carries our one-year guarantee.

Is there any odour?

It depends on the product. Some smell for a while, some hardly at all.

Do you hold any approvals?

Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we are part of it.

What fire rating will the seal have?

That is not something we state or certify. The requirement comes from your assessor, designer or building control, and we fit a product whose tested details meet it with a record of each location.

Fire rated sealant in Kempshott: 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, which is often where open fire-stopping gaps are first noticed. We apply fire-rated sealant to the assessor’s or designer’s specification and the product’s tested details.

Schools such as Kempshott Junior School are buildings too, and gaps opened by contractors for new cabling are a common finding in schools and offices. For landlords with property near Basingstoke station, any gap left by new services in shared walls should be closed with a fire-rated product.

Kempshott is about 2 miles south-west of Basingstoke, in Hampshire. Kempshott gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a 12-month guarantee. Our area takes in 683 places across Hampshire. You can also see our page for Reading, about 16 miles away.

Every address in RG22 and RG23 is covered for fire rated sealant, from the main roads to the quietest streets. Whether your property is on Roman Road, Aster Road and Osprey Road or a nearby road, we can help. Close by, we work in Buckskin (1 mile north), Hatch Warren (1 mile south-east), Worting (1 mile north), Brighton Hill (1 mile east) and South Ham (2 miles north-east). Further out, we also cover Winchester (15 miles south-west), Fleet (13 miles east), Andover (15 miles west), Alton (10 miles south-east), Yateley (15 miles north-east) and Tadley (8 miles north).

What’s near Kempshott

Locally, jobs take us to homes and businesses close to Brighton Hill Community School and Coppice Spring School. The nearest railway station is Basingstoke station, about 2.8 miles north-east of the centre. A little further out are Willis Museum (2.6 miles north-east) and The Malls (2.8 miles north-east). For a walk, there’s Daneshill Park Woods and Farleigh Hill.

Map of Kempshott © OpenStreetMap contributors

What affects the cost of fire rated sealant

The price is agreed before any work begins. It’s based on:

  • The number and length of the joints
  • Access and height
  • The type of sealant required
  • How many rooms, windows or areas are involved

Instead of a standard rate, we look at what your job involves: how many joints, what’s in them now and how we reach them. You’ll know the price before we begin.

Asking for a quote

A few details help us give you an accurate quote. When you ask for a quote, tell us:

  • Any previous sealing or DIY work
  • Roughly how big the job is
  • Pictures of the joints, sent by email
  • Access, such as stairs, a lift or height

To get a quote, phone 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. You’ll have a clear quote before any work starts.

How the visit works

Before we leave, we go over the finished joints with you and tell you how long to leave it. The visit itself normally takes a few hours for a handful of gaps, and longer for a whole building, depending on the size of the job. Parking around Kempshott is usually easier than in a town centre, but mention any lanes, gates or long drives. For outside work, side access and the height of the joints help us plan.

  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. Dust and loose debris are cleaned from each gap.
  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

  • Let us know about earlier repairs to the joints
  • Clear the area around the work
  • Mention any parking rules near the property

Get a quote

Getting a quote is simple: tell us what needs doing and where and its rough size. Photos by email help us understand the job, and we’ll take it from there.

Get a price

Related advice

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