Hampshire · England

Fire-rated sealant in Clanfield, Hampshire

Intumescent and fire-rated sealant around gaps, frames and service penetrations in Clanfield, with a one-year guarantee on every job. Call for a quick quote.

  • Ordinary sealant used where a fire-rated product was needed
  • Cracked or shrunken fire-rated sealant
  • Gaps where walls meet ceilings or slabs

Fire rated sealant near Clanfield

Fire rated sealant for homes and businesses in Clanfield

Landlords, managing agents and facilities teams use us for the sealant items on a fire risk assessment. If you share the list, we can quote for the gaps that need fire-rated sealant. We work on flats & HMOs, door frames and plasterboard & masonry, and the jobs we see most are door frames with gaps between frame and wall and holes left by a change of layout.

For holiday lets, converted business premises or a community building near Clanfield, washroom and kitchen sealant and any fire-rated joints need the same attention as anywhere.

Big or small, it’s backed by our 12-month guarantee in Clanfield and across Hampshire.

The Mr Mastic team in navy uniforms in front of three Mr Mastic vans
Location
Clanfield (PO8)
Wider area
Hampshire
Guarantee
A year, on every job
Price
A clear quote up front
Call
0345 464 0079
Updated
26 October 2026

What affects the cost of fire rated sealant

You’ll get a clear quote before any work starts. It takes into account:

  • The number and length of the joints
  • The product the joint needs
  • How easy the joints are to reach
  • Any working-time requirements on site

Commercial jobs are quoted on the same basis as homes: how much there is to do, how we reach it and what it needs. Ask us for a quote and we’ll explain what it covers.

Asking for a quote

Before you ask for a quote, have a think about:

  • Whether it’s a home or a business
  • Any previous sealing or DIY work
  • What the problem is, such as mould, gaps, leaks or cracking
  • How many joints, rooms or windows are involved

For a quick quote, get us on the phone, or send an email if you’d rather. Describe what needs sealing and we will explain what’s involved.

Clanfield: your questions answered

Do you work for landlords with property near Rowlands Castle station?

Yes. We work for letting agents and landlords as well as homeowners, and several properties can be quoted together. Just ring 0345 464 0079 or email us with the address and what needs doing, and we’ll give you a clear quote.

Can you do fire rated sealant in Clanfield?

Yes. Our work covers London and the South East, and Clanfield is part of that. Just ring 0345 464 0079 or send us an email with a few details of the job, and we’ll give you a clear quote.

How much does fire rated sealant cost in Clanfield?

We do not publish prices, because the cost depends on the job: its size, the old material, access and the product needed. You’ll get a clear quote before we start.

Is intumescent sealant the same as fire-rated sealant?

Fire-rated sealant covers any sealant tested for use in fire stopping. Intumescent types expand when heated, and they’re one option among several. We use whichever the specification and tested details call for.

Do you carry out fire risk assessments?

No, assessment isn’t something we do. Once you have a specification or action list from your assessor or designer, we can quote for the fire-rated sealant items.

Is it OK to seal over old sealant?

No. New silicone won’t bond to old silicone, and anything trapped underneath, including mould and water, stays there. We remove it all first.

Is it messy?

Not at all. We work neatly, protect the area around the joints and tidy up afterwards.

Are you ARBOMaster approved?

Yes. We are an ARBOMaster approved applicator, which is run for the Arbo sealant brand.

What happens if it’s left?

Items left open on a fire risk assessment tend to come back at the next review. Having them sealed and recorded now gives you evidence that the item was dealt with. Where a wall is exposed, as many are in small places like Clanfield, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.

Doing several joints on one visit normally makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. You will get one clear quote for the whole job.

What you get with us

  • Quality sealants from Arbo and Everbuild
  • Full insurance on every job
  • Rated 4.9 stars on Google
  • Homes, businesses and hotels

Take a look at our cost guide and customer reviews.

Keeping the joints in good condition

Simple care keeps the joints in good condition. Our advice:

  • Report cracked or damaged seals as soon as you notice them
  • Check risers, ceiling voids and cupboards during building checks
  • Do not paint over fire sealant until it has cured
  • Photograph sealed gaps before they’re covered up

Look at the sealed gaps as part of your routine walk-rounds. Look for cracks, gaps or sealant that has been cut or pulled out and get them seen to.

Any job that breaks through a wall or ceiling should include resealing. Catching it then saves a separate visit later.

How it works

When we arrive, we look over the joints with you first, so there are no surprises. We protect the surfaces around the joints before any work starts. The work usually takes a few hours for a handful of gaps, and longer for a whole building. Somewhere like Clanfield needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.

  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. Where the tested detail needs backing or fill, we fit it.
  4. Fire-rated or intumescent sealant is applied to the right depth and tooled.
  5. Locations and products are noted so you have them on file.

Getting ready for the visit

  • For indoor joints, keep the area dry beforehand if you can
  • Mention any sign-in or site rules at work premises
  • Mention any leaks or damp you’ve noticed

Ask for a quote

We quote each job on its own, so the first step is telling us about yours. Simply ring 0345 464 0079 or email us and describe the job, and pictures are welcome.

Get a quick quote

Related advice

Work for landlords, hotels and businesses

We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.

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.

Common problems we fix in Clanfield

Lots of unsealed gaps appear long after the building was completed. Electricians, plumbers and data installers drill through walls and ceilings and the hole they leave doesn’t always get resealed.

Signs it’s time to call us include:

  • Fire seals that have cracked with movement
  • Holes left by a change of layout
  • Gaps filled with a product that is not fire-rated
  • Seals cut through by electricians, plumbers or data installers

Rented homes near Rowlands Castle station change hands often, and fire-rated sealant around pipes and cables through walls and floors needs making good whenever new services go through.

What to look for in a quote

  • Whether you can choose the colour
  • Whether they seal over old material or remove it
  • What happens if they find a problem under the old sealant
  • What product goes in the joint

Choosing a sealant specialist

Fire rated sealant around Clanfield

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’re given, installing the product to its tested details.

For buildings such as Church of St James, service openings in its walls need the right fire-rated sealant, as in any building. If you look after a building such as Clanfield Junior School, service openings in fire-resisting walls need checking after any refurbishment.

Clanfield is about 3 miles north of Horndean, in Hampshire. Across the PO8 area, our applicators can take on fire rated sealant. Our Hampshire coverage runs to 683 places, Clanfield among them. There’s also a page for Portsmouth, roughly 10 miles from Clanfield.

Every address in PO8 is within our area for fire rated sealant, from the main roads to the quietest streets. We cover properties on South Lane, Twyford Rise and Homefield Way and the roads around them. Neighbouring places we cover for fire rated sealant include Catherington (1 mile south), Lovedean (2 miles south), Horndean (3 miles south), Wecock Farm (3 miles south) and Anmore (3 miles south-west). We also work in nearby towns such as Gosport (11 miles south-west), Havant (6 miles south), Eastleigh (15 miles west), Fareham (10 miles south-west), Alton (14 miles north) and Hedge End (13 miles west).

Landmarks near Clanfield

We work in homes and buildings around Rising Sun Inn and Horndean Technology College. For rail, the closest station is Rowlands Castle station, about 4.2 miles south-east of the centre. Well-known places in the area include Petersfield Community Hospital (5.1 miles north-east) and Clanfield Earthwork (1.2 miles east). The countryside around Clanfield includes Windmill Hill.

Map of Clanfield © OpenStreetMap contributors

What sealant work can’t fix

We will always be straight with you, so here’s what new sealant won’t do:

  • A wall that is not a fire-resisting element to begin with
  • Issuing a fire rating or certificate for a building
  • Doors that are not fire doors in the first place

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

Joints and surfaces we work on

  • Plasterboard & masonry
  • Door frames
  • Service penetrations
  • Flats & HMOs
  • Linear gaps
  • Pipe & cable gaps
20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job