Hampshire · England

Fire-rated sealant in Dean, Hampshire

Intumescent and fire-rated sealant around gaps, frames and service penetrations for homes and businesses in Dean and across Hampshire. Fully insured, ARBOMaster approved and guaranteed for a year.

  • Gaps where walls meet ceilings or slabs
  • Damaged fire sealant left by other trades
  • Gaps left after a refit or conversion

Need fire rated sealant in Dean?

Fire rated sealant in Dean: 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.

Managing a site like Bishops Waltham Infant School? Then service openings in fire-resisting walls need checking after any refurbishment. Community buildings like Church of St Peter are part of the picture too: older buildings that have had new heating or wiring often have service gaps worth checking.

Dean is about 6 miles north-east of Hedge End, in Hampshire. For fire rated sealant in and around Dean, it’s easy to get a quote: please call 0345 464 0079 or send us an email. We’re based in Crawley and cover Hampshire, Dean included. Across Hampshire, we cover 683 places, Dean among them. Southampton is on our list too, around 9 miles away.

Work in SO32 works the same way as everywhere else we cover. We cover properties on Dean Lane, Little Ashton Lane and Limekiln Lane and the roads around them. Nearby, we also carry out fire rated sealant in The Hangers (1 mile east), Upper Swanmore (2 miles south-east), Swanmore (2 miles south), Hill Grove (2 miles south-east) and Droxford (3 miles east). We also work in nearby towns such as Winchester (8 miles north-west), Gosport (12 miles south), Havant (12 miles south-east), Eastleigh (6 miles west), Fareham (8 miles south) and Horndean (9 miles south-east).

Landmarks near Dean

Locally, jobs take us to homes and businesses close to Swanmore College of Technology and the streets around them. The nearest railway station is Botley station, about 4.6 miles south-west of the centre. Nearby you’ll also find Bishop's Waltham Museum (1.4 miles south-west). The countryside around Dean includes Bishops Waltham Branch LNR and Beacon Hill.

Map of Dean © OpenStreetMap contributors

How we handle fire rated sealant in Dean

A fire seal relies on being installed the way it was tested: correct depth, correct backing and a product suited to the surfaces. That is the part we focus on. If you are dealing with fire stopping disturbed by later work and gaps left after a refit or conversion, we can help, whatever the surface.

Work in a small place like Dean is planned ahead, journey included, so it can be fitted around guests, clients or events where possible.

Whatever the size of the job, it’s backed by our one-year guarantee in Dean and across Hampshire.

Place
Dean (SO32)
Region
Hampshire
Cover
One year on every job
Quote
A clear price before work begins
Telephone
0345 464 0079
Last updated
26 October 2026
Mr Mastic applicators lined up beside the company vans, one holding a sealant gun

Your questions about fire rated sealant in Dean

Is Dean within the area you cover?

Yes, we do. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.

Can you help a landlord with a rental near Botley station?

Yes. We work for landlords and agents as well as householders, and several properties can go on one quote. You can phone 0345 464 0079 or send us an email with the details for a clear quote.

Where do you work from?

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

Can you quote for more than one area?

Of course. Combining jobs makes good use of the visit, so mention them when you ask for a quote.

Will there be a smell?

That depends on the sealant. Some products have a noticeable smell, others very little, and any smell fades as they cure.

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

No. It might close the gap, but it is not a fire-rated seal. A tested fire-rated product is needed, or ask us to do it.

Do you carry out fire risk assessments?

No, we do not assess buildings. Once you have a specification or action list from your assessor or designer, we can quote for the fire-rated sealant items.

How long does the job take?

That depends on the amount of work, but as a guide it takes anything from a few hours to several days, depending on how many gaps there are. We’ll tell you when we quote.

When it is not the sealant

Some problems need a builder, plumber or other trade rather than us:

  • Sign-off of the building, which sits with building control or your assessor
  • Walls or floors that weren’t built to resist fire
  • Assessing a building’s fire safety

If you are not sure, just ring 0345 464 0079 or send us an email and we’ll give you a straight answer.

Where we work in Dean

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

What the job involves on each surface

Linear gaps

Long, narrow gaps appear where walls meet slabs and ceilings. We seal them to the tested detail, with backing where it’s needed.

Masonry and concrete

Brick, block and concrete walls and floors are sealed with products tested in masonry. We clean out dust and debris before sealing so the seal has something sound to bond to.

Should I try it myself first?

If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.

Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.

How it works

When we arrive, we start by going over the job with you, so you know exactly what we’re doing. Surfaces next to the work are protected before any work begins. The work usually takes a few hours for a handful of gaps, and longer for a whole building. Somewhere as small as Dean, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.

  1. We start with the survey or action list, checking the size and surfaces of every gap.
  2. Anything that isn’t fit for the job comes out, and the gap is cleaned.
  3. We put in whatever backing or fill the product detail specifies.
  4. We apply the fire-rated or intumescent sealant to the specified depth and tool it.
  5. Locations and products are noted so you have them on file.

Getting ready for the visit

  • Tell us about access, such as stairs, a lift or high-level joints
  • Keep pets and children clear of the area while we work
  • On commercial sites, let us know about site rules

Ask for a quote

For a quote, ring 0345 464 0079 or send us an email with the location and a short description of the problem. You’ll have a clear quote before work begins.

Get a quick quote

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What happens if it’s left?

Squirting in whichever sealant is nearest does not make a fire seal. Fire-rated products are tested in set gap sizes, depths and substrates, so both the product and the method matter. In a small place like Dean, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.

The cost reflects the work involved, not a rough estimate. That’s why we ask about the job first and send you a clear quote before any work starts.

Why Dean customers choose us

  • Tidy, careful work
  • More than 20 years in sealant work
  • An ARBOMaster approved applicator
  • Any old sealant cut out fully, not covered over

Take a look at how sealant jobs are priced and our reviews.

Quotes for fire rated sealant in Dean

We do not publish a price list, because no two jobs are the same. What we look at:

  • The size of the job
  • The number of rooms or windows
  • Access and height
  • Whether there’s mould to deal with

The cost depends on the size of the job, how much old material has to come out and how easy the joints are to reach. You will have a clear quote before any work starts, so you know where you stand.

What we need to know

There’s no need for technical detail. Just tell us:

  • The type of property
  • If someone has resealed it before
  • Where the job is, and your postcode
  • What the problem is, such as mould, gaps, leaks or cracking

Asking for a quote is easy: let us know the job and the location and its rough size. A few pictures by email make the job easier to understand, and we’ll come back to you with a quote.

Signs you need fire rated sealant in Dean

Movement in the structure can open gaps too: a seal that cracks or pulls away leaves a path for smoke. Damage from cleaning, knocks and maintenance adds to it.

Common reasons people contact us include:

  • Damaged fire sealant left by other trades
  • Linear gaps at the head of walls
  • New service routes left unsealed after building work
  • Open gaps behind door architraves

Rented homes near Botley station change hands often, and new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant.

Before booking anyone

  • Who does the work, and how experienced they are
  • Whether VAT is included
  • What happens if they find a problem under the old sealant
  • What guarantee comes with the work

Choosing a sealant specialist

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