Hampshire · England

Fire Rated Sealant in Thruxton

Specialist fire rated sealant for Thruxton: careful preparation, the right product and tidy work. Call for a quick quote.

  • Linear gaps at the head of walls
  • Gaps left after a refit or conversion
  • Seals cut through by electricians, plumbers or data installers

Trusted fire rated sealant in Thruxton

Can I do it myself?

What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is.

Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.

Fire rated sealant in Thruxton

Later work by other trades often breaks through fire stopping, especially in flats, HMOs, offices and schools. One new cable or pipe can leave a gap that nobody goes back to seal. Those are the gaps we close, using a tested fire-rated product. We work on linear gaps, flats & HMOs and door frames, and people most often call us about joints picked up in a fire-stopping survey and unsealed gaps around fire door frames.

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

A one-year guarantee comes as standard, so you’re covered after we’ve gone.

Where
Thruxton (SP11)
Wider area
Hampshire
Guarantee
A year, on every job
Price
A clear price before we start
Phone
0345 464 0079
Last updated
26 October 2026
Eleven members of the Mr Mastic team standing in front of branded white vans

What sealant work can’t fix

Honest advice matters more to us than a booking, so here’s what new sealant won’t do:

  • Doors that are not fire doors in the first place
  • Construction that does not provide fire resistance on its own
  • Issuing a fire rating or certificate for a building

If in doubt, phone 0345 464 0079 or send us an email and we will say what we think.

Where we work in Thruxton

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

Landlords, agents and businesses in Thruxton

Hotels need rooms back in use, so we plan the work room by room around your bookings where we can. We have worked in hotels as well as homes and businesses.

For anyone letting property in or around Thruxton, several properties can be quoted together. Send us the addresses and the work at each.

What we do, step by step

Most of a good job is in the preparation, so that’s where we spend the time. Joints are cleaned back and dried before anything new goes in. In total, it normally takes from a few hours to a few days, depending on the number of gaps and the access. Somewhere as small as Thruxton, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.

  1. We begin by agreeing the list of gaps from your assessor’s or designer’s requirements.
  2. We measure every gap and note what it’s in and what passes through.
  3. Unsuitable material such as ordinary foam or silicone is cut out and the faces cleaned.
  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.

Before we arrive

  • On commercial sites, let us know about site rules
  • Tell us about access, such as stairs, a lift or high-level joints
  • Tell us about any previous sealing or DIY attempts

Ask for a quote

It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we will explain how we’d tackle it. Whenever you are ready, ring 0345 464 0079 or send us an email.

Get a price

Advice

What affects the quote in Thruxton

We quote each job individually. These are the things that affect it:

  • The type of sealant required
  • Any mould that needs treating
  • How much old sealant there is and how hard it is to remove
  • The number of rooms or windows

The cost depends on how much there is to do, how much old material has to come out and how easy the joints are to reach. You’ll have a clear quote before any work starts, so you know where you stand.

Helping us quote

To make quoting easier, let us know:

  • Where the job is, and your postcode
  • Access, such as stairs, a lift or height
  • Any previous sealing or DIY work
  • A few pictures by email, if you can

Need a quote? Please call 0345 464 0079 or email us and tell us about the job. We’ll explain what we’d do and give you a clear quote before we start.

How the job changes by surface

Linear gaps

Long, narrow gaps appear where walls meet slabs and ceilings. They’re sealed with a fire-rated sealant over backing where the detail calls for it.

Service penetrations

New gaps tend to show up where services have been added. We clean out what’s there and reseal to the right depth over any backing the detail calls for.

Why act early in Thruxton

Sealant is not the fix for every opening. Big openings, bundles of cables and plastic pipes may need batts, collars or wraps instead. If a gap isn’t suitable for sealant, we will tell you. Where a wall is exposed, as many are in small places like Thruxton, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.

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. We take all of that into account in your quote.

Why book with us

  • Anti-fungal sanitary silicone in wet areas
  • An ARBOMaster approved applicator
  • Homes, businesses and hotels
  • Full insurance on every job

See how sealant jobs are priced and customer reviews.

Commercial buildings in Thruxton

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, 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.

Schools such as Amport Church of England Primary School are buildings too, and fire-stopping around service openings should be restored whenever new services go in. Letting a property close to Grateley station? Then any gap left by new services in shared walls should be closed with a fire-rated product. If you look after a church, hall or community building such as Church of St Peter and St Paul, older buildings that have had new heating or wiring often have service gaps worth checking.

Thruxton is about 4 miles west of Andover, in Hampshire. We carry out fire rated sealant for homeowners, landlords and businesses in Thruxton and the surrounding area. Thruxton is one of 683 places in Hampshire we cover for fire rated sealant. There’s also a page for Southampton, roughly 22 miles from Thruxton.

Work in SP11 is quoted and booked the same way as anywhere else. Local streets include Lambourne Way, Lambourne Close and Stanbury Close, and we cover them all. We also cover Mullenspond (1 mile east), East Cholderton (1 mile south-east), Fyfield (1 mile north), Weyhill (1 mile north-east) and Appleshaw (2 miles north-east). Within a short drive, we also cover Andover (4 miles east), Hyde (15 miles south-east), Tidworth (4 miles north-west), Weeke (14 miles south-east), Stanmore (15 miles south-east) and Ludgershall (3 miles north-west).

Local landmarks in Thruxton

We work in homes and buildings around The George Inn, among other places. For rail, the closest station is Grateley station, roughly 3.2 miles south-west of the centre. Well-known places in the area include Andover War Memorial Hospital (3.9 miles east) and Ludgershall Castle (3.8 miles north-west). The countryside around Thruxton includes Anton Lakes and Quarley Hill.

Map of Thruxton © OpenStreetMap contributors

Questions from Thruxton

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

Yes, landlords and agents are among the people we work for, and several properties can be quoted together. You can ring 0345 464 0079 or send us an email with the details for a clear quote.

Do you cover smaller places like Thruxton?

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

Can I choose the sealant colour?

Yes. Sealants come in white, clear, grey and other colours, and we will agree it with you first.

What does intumescent mean?

Intumescent describes a material that swells in heat. Many fire-rated sealants work this way, but not all and which one is used depends on the job.

What fire rating will the seal have?

We don’t issue ratings or certificates ourselves. The performance comes from the product’s tested details and the specification from your assessor or designer; we install to those details and record what we did.

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.

What information do you need?

Just the basics: the address or postcode, what’s wrong and any access issues. After that, simply phone 0345 464 0079 or drop us an email.

Can I use normal mastic around a pipe through a fire wall?

No. It looks sealed but won’t perform as fire stopping. A tested fire-rated product is needed, or ask us to do it.

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