Hampshire · England

Fire-rated sealant in Wadwick, Hampshire

Our applicators work in Wadwick on intumescent and fire-rated sealant around gaps, frames and service penetrations. Old sealant removed completely, joints prepared properly.

  • Seals cut through by electricians, plumbers or data installers
  • Gaps flagged on a fire risk assessment
  • New service routes left unsealed after building work

Fire rated sealant for Wadwick homes and businesses

Fire rated sealant for homes and businesses in Wadwick

We can work through a building room by room or floor by floor. That record is useful for your files and for whoever looks at the building next. If you have gaps around pipes and cables through fire-resisting walls and new service routes left unsealed after building work, we can help.

For a small place like Wadwick, the journey and timings are agreed in advance, so it can be fitted around guests, customers or events where possible.

Our work is backed for twelve months, and the guarantee is the same wherever you are.

The Mr Mastic team in navy uniforms in front of three Mr Mastic vans
Where
Wadwick (SP11)
Wider area
Hampshire
Cover
12 months on all our work
Quotes
A clear price before work begins
Phone
0345 464 0079
Last updated
26 October 2026

Do you need fire rated sealant in Wadwick?

Lots of unsealed gaps appear long after the building was completed. New cables, pipes and data runs go through walls and ceilings and the hole round the new service isn’t always sealed again.

Common reasons people contact us include:

  • Sealant items on a fire risk assessment action list
  • Standard silicone or caulk in a fire-stopping gap
  • Seals cut through by electricians, plumbers or data installers
  • Holes left by a change of layout

If you let a flat or house near Whitchurch (Hampshire) station, new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant.

Comparing quotes

  • When the joint can take water or movement
  • Are they insured?
  • Which colour the sealant will be
  • Who turns up on the day

How to choose a mastic man

Should I try it myself first?

Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.

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.

Looking after it afterwards

To keep the joints looking good and working properly:

  • Plan fire stopping into any work that goes through walls or floors
  • Take photos of fire stopping before ceilings or boxing go back
  • Check risers, ceiling voids and cupboards during building checks
  • Keep the record of products and locations with your fire safety documents

Look at the sealed gaps as part of your routine walk-rounds. Watch for cracking, gaps or seals that have been disturbed and get them seen to.

A gap left open in a fire-resisting wall or floor lets smoke spread in ways the building wasn’t designed for. Sealing it early is a simple step to take.

Common questions in Wadwick

I let a flat near Whitchurch (Hampshire) station. Can you help?

Yes. We work for landlords and letting agents as well as householders. You can call 0345 464 0079 or drop us an email with the details for a clear quote.

Can you do fire rated sealant in Wadwick?

Yes, Wadwick is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or send us an email with a few details of the job, and we’ll send you a clear quote.

Can new sealant go over the old?

No, because it fails. The old sealant always comes out first, so the new joint bonds to clean surfaces.

How long will you be here?

That depends on the amount of work, but most jobs take from a few hours to a few days, depending on the number of gaps and the access. We’ll give you a better idea when we quote.

Is it worth trying it myself?

Some simple jobs can be done by a careful DIYer. Most DIY failures come from sealing over old material, wet joints or too much sealant.

Does someone need to be in?

It depends on the job. Inside work needs someone to give us access, while outside work can sometimes be arranged differently.

Is intumescent sealant the same as fire-rated sealant?

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

Where is Mr Mastic based?

Our base is Crawley, with over 20 years’ experience. Our area covers South East England, London and Scotland.

When something else is needed

Sealant is not the answer to every problem, and we’d rather say so up front. Sealant will not put right:

  • Certifying a building or signing off its fire safety
  • Assessing a building’s fire safety
  • Doors that aren’t fire doors in the first place

Not sure which it is? You can phone 0345 464 0079 or send us an email and we will tell you honestly before you book.

What we seal

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

How the job changes by surface

Masonry and concrete

Holes through concrete and block are rarely neat. We check the gap size around the service against the product’s tested range.

Flats and HMOs

Conversions normally leave a mix of old and new service holes. We seal the ones on your specification with a tested product and record where they are.

Workplaces and buildings in Wadwick

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.

Around Wadwick, as everywhere, fire rated sealant is only as good as the preparation behind it.

Wadwick is about 6 miles north-east of Andover, in Hampshire. Whether you’re in the middle of Wadwick or further out, fire rated sealant is available for homes and businesses alike. Wadwick is one of 683 places in Hampshire where we work for fire rated sealant. Reading is on our list too, about 21 miles from Wadwick.

Every address in SP11 is within our area for fire rated sealant. Other places close to Wadwick include Binley (1 mile west), St Mary Bourne (2 miles south-west), Cole Henley (3 miles south-east), Whitchurch (4 miles south-east) and Wells-in-the-Field (4 miles south-east). Further out, we also cover Basingstoke (12 miles east), Winchester (15 miles south), Andover (6 miles south-west), Tadley (12 miles north-east), Hyde (14 miles south) and Popley (13 miles east).

Around Wadwick

The closest station to Wadwick is Whitchurch (Hampshire) station, about 3.2 miles south-east. Green spaces nearby include Sidown Hill.

Map of Wadwick © OpenStreetMap contributors

What we do, step by step

All our tools and materials come with us in the van, so you don’t need to buy or prepare anything. After a quick look at the joints together, the area is protected and the work begins. Most jobs take a few hours for a handful of gaps, and longer for a whole building. Somewhere like Wadwick needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.

  1. First we work through your list or survey, measuring each gap and checking what it’s formed in.
  2. Old or unsuitable sealant is cut out and the gap cleaned.
  3. Backing or fill is fitted where the product’s tested detail calls for it.
  4. We apply the fire-rated or intumescent sealant to the specified depth and tool it.
  5. Finally, we list where we worked and what we used, for your records.

Preparing for the visit

  • Move anything stored near the joints
  • Plan for the work area to be out of bounds to pets and children
  • Where the joints are inside, avoid wetting them before we arrive

Get a quote

If you are in Wadwick and need fire rated sealant, call 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and you’ll get a clear quote before work begins.

Get a quick quote

Related advice

Why it’s worth doing now in Wadwick

Waiting for the next refit can leave a gap open for years. On its own, sealing it now is a small job. Where a wall is exposed, as many are in small places like Wadwick, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.

A few things move the cost up or down: the old material and how easily it comes out, any mould to treat, and whether we need extra access for height. We take all of that into account in your quote.

Why Wadwick customers choose us

  • Anti-fungal silicone where joints get wet
  • Any old sealant cut out fully, not covered over
  • Trusted Arbo and Everbuild sealants
  • Tidy, careful work

See our cost guide and what customers say.

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