Hampshire · England

Fire-rated sealant in The Mint, Hampshire

Fire rated sealant in The Mint from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.

  • Holes left by a change of layout
  • Fire seals that have cracked with movement
  • Ordinary sealant used where a fire-rated product was needed

Fire rated sealant in The Mint

Should I try it myself first?

The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.

If you’re set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.

Fire rated sealant for homes and businesses in The Mint

A gap around a door frame, a linear joint at the head of a wall and a hole round a pipe are each sealed differently. Measuring the gap and checking what it’s made of comes first, then apply it to the depth its tested detail calls for. We work on service penetrations, pipe & cable gaps and plasterboard & masonry, and common reasons people get in touch are ordinary sealant used where a fire-rated product was needed and holes left by a change of layout.

If you have holiday lets, a converted barn used for business or a community building near The Mint, the washrooms, kitchens and any fire-rated joints need the same care as a big site.

Each job carries a 12-month guarantee.

The Mr Mastic team in navy uniforms in front of three Mr Mastic vans
Location
The Mint (GU33)
Wider area
Hampshire
Guarantee
12 months on all our work
Price
A clear price before any work starts
Telephone
0345 464 0079
Last updated
26 October 2026

The Mint: your questions answered

Will you come out to The Mint?

Yes, smaller places are covered as well as towns. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.

Do you work for hotels and guest houses in The Mint?

Yes. Hotel and guest-house work is part of what we do. Jobs can be programmed room by room, with out-of-hours working possible to arrange.

Is standard sealant good enough for a fire gap?

No. Standard sealants aren’t made or tested to stop fire. If it’s been used, we remove it and use the right product.

Will it make a mess?

No. We protect the surfaces around the joints, and we tidy up before we go.

Can I do it myself?

For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.

Do you take out the old sealant first?

Yes. We cut out all the old sealant and clean the joint before applying anything new.

What does fire rated sealant cost?

The cost depends on the size of the job, access and how much old sealant has to come out. Call for a quick quote.

Can new sealant go over the old?

No. Fresh sealant does not stick to old sealant, and it traps any mould or water underneath. It all has to come out first.

What fire rated sealant looks like in The Mint

There are hotels and other places to stay in and around The Mint. For hotels, a room-by-room programme keeps most rooms in use while the work goes on. In England, the Regulatory Reform (Fire Safety) Order 2005 requires a fire risk assessment for workplaces and for the common parts of blocks of flats, 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 Liss Junior School, service openings in fire-resisting walls need checking after any refurbishment. If you look after a church, hall or community building such as Hope Church, older buildings that have had new heating or wiring often have service gaps worth checking.

The Mint is about 4 miles north-east of Petersfield, in Hampshire. From the centre of The Mint to the outskirts, fire rated sealant is available for homes and businesses alike, from flats and houses to offices and hotels. Our Hampshire coverage runs to 683 places, The Mint among them. There’s also a page for Portsmouth, about 19 miles away.

Here we cover the GU33 postcode area for fire rated sealant. Other places close to The Mint include Liss Forest (1 mile north-west), Liss (1 mile south-west), Rake (1 mile south-east), West Liss (1 mile south-west) and Hill Brow (1 mile south). Within a short drive, we also cover Havant (14 miles south), Horndean (11 miles south-west), Aldershot (14 miles north), Alton (8 miles north-west), Waterlooville (13 miles south-west) and Petersfield (4 miles south-west).

Near you in The Mint

Locally, jobs take us to homes and businesses close to The Temple Inn, among other places. The nearest railway station is Liss station, about 0.8 miles south-west of the centre. A little further out are Chase Community Hospital (3.9 miles north). The countryside around The Mint includes Liss Riverside Railway Walk North and Wheatham Hill.

Map of The Mint © OpenStreetMap contributors

The process

The work is kept neat and contained to the joints we’re treating, so you can carry on as normal. Expect the work to take from a few hours to a few days, depending on the number of gaps and the access, and we explain the cure time before we leave. Somewhere as small as The Mint, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.

  1. Before starting, we go through the specification or action list with you.
  2. Each gap is measured and its substrate and service noted.
  3. Any non-fire-rated filler is removed.
  4. The specified fire-rated sealant goes in over any backing its detail requires.
  5. We hand over a list of locations and products for your records.

Getting ready for the visit

  • Keep pets and children clear of the area while we work
  • Mention any tricky access
  • Let us know if you’ve seen damp or leaks

Ask for a quote

Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we’ll talk you through the work before giving you a price.

Get a quick quote

Read more

Aftercare tips

Good habits help new joints last longer. A few tips:

  • Keep general-purpose foam and caulk away from fire-stopping gaps
  • Photograph sealed gaps before they’re covered up
  • Include fire stopping when you schedule refits
  • Ask every contractor to reseal any fire stopping they disturb

Follow the cure time we give you before decorating over the sealant. Some fire-rated sealants can be painted and some cannot, so ask us which we used.

Small gaps around services are simple to deal with while there are only a few. Leave them and each new job adds another hole and the list grows.

What we are called out for in The Mint

Buildings are refitted and reconfigured over the years. Conversions to flats and HMOs, and office refits, create new walls and new routes for services, with gaps to match.

Any of these means the joints need attention:

  • Ordinary sealant used where a fire-rated product was needed
  • Gaps left after a refit or conversion
  • Unsealed gaps around fire door frames
  • Fire stopping disturbed by later work

Letting a property close to Liss station? Then new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant.

Questions to ask before booking

  • Whether the sealant suits the joint
  • What happens if the job turns out different
  • What insurance they hold
  • How the colour is chosen

10 questions to ask before you book

Surface by surface

Service penetrations

Pipes, cables and ducts passing through fire-resisting walls and floors each leave a gap. The sealant is chosen for what passes through and how wide the gap is.

Flats and HMOs

Working in occupied flats needs some planning. We agree access to each flat and the common parts before any work starts to keep disruption down.

For landlords and businesses

We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements.

Landlords and letting agents in The Mint can book us as well as homeowners. Sealant work between tenants keeps a property looking cared for before the next move-in.

Honest limits

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

  • Deciding what fire stopping a building needs
  • Big openings where sealant alone isn’t the tested solution
  • Walls or floors that weren’t built to resist fire

If you are not sure, just ring 0345 464 0079 or drop us an email and we will give you a straight answer before you book.

Joints and surfaces we work on

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