Hampshire · England

Fire-rated sealant in Ashurst, Hampshire

Fire-stopping gaps in Ashurst need attention? We cut out the old, prepare the joints and apply the right sealant.

  • Gaps left after a refit or conversion
  • Gaps around pipes and cables through fire-resisting walls
  • Open joints along the top of partitions

Need fire rated sealant in Ashurst?

Fire rated sealant for homes and businesses in Ashurst

We can work through a building room by room or floor by floor. It gives you a list to keep with the building’s fire safety documents. If you are dealing with new service routes left unsealed after building work and gaps around pipes and cables through fire-resisting walls, we can help, whatever the surface.

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

Every job comes with a one-year guarantee, wherever you are in Hampshire.

Location
Ashurst (SO40)
Region
Hampshire
Cover
One year on every job
Quote
A clear quote up front
Call
0345 464 0079
Last updated
26 October 2026
The Mr Mastic team in navy uniforms in front of three Mr Mastic vans

When it isn’t the sealant

Sealant is not the answer to every problem, and we will tell you before we start. It will not solve:

  • Large holes that need a different fire-stopping system
  • Walls or floors that weren’t built to resist fire
  • Sign-off of the building, which sits with building control or your assessor

If you’re not sure, just call 0345 464 0079 or send us an email and we’ll give you a straight answer before booking.

Joints and surfaces we work on

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

What we are called out for in Ashurst

Over time, buildings change layout and use. Conversions to flats and HMOs, and office refits, create new walls and new routes for services, with gaps to match.

Common reasons people contact us include:

  • Joints picked up in a fire-stopping survey
  • Gaps around pipes and cables through fire-resisting walls
  • Seals cut through by electricians, plumbers or data installers
  • Fire seals that have cracked with movement

If you look after a church, hall or community building such as Colbury Christ Church, older buildings that have had new heating or wiring often have service gaps worth checking.

Before booking anyone

  • When the joint can take water or movement
  • Who turns up on the day
  • Whether the sealant suits the joint
  • Whether VAT is included

10 questions to ask before you book

How the job changes by surface

Plasterboard walls

Plasterboard partitions are common in flats, offices and conversions. The sealant has to be one tested in plasterboard.

Masonry and concrete

Preparation counts on brick, block and concrete. We brush and vacuum the gap and use backing where the detail needs it.

How the visit works

When we get to you, we check the joints match what you told us. If we find something unexpected, we talk it through with you first. After that, the work takes a few hours for a handful of gaps, and longer for a whole building. Somewhere as small as Ashurst, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.

  1. We begin by agreeing the list of gaps from your assessor’s or designer’s requirements.
  2. Each gap is measured and its substrate and service noted.
  3. Unsuitable material such as ordinary foam or silicone is cut out and the gap cleaned.
  4. The specified fire-rated sealant goes in over any backing its detail requires.
  5. Every location is recorded with the product used for your records.

Preparing for the visit

  • Let us know about earlier repairs to the joints
  • For indoor joints, keep the area dry beforehand if you can
  • Clear the area around the work

How to get a quote

To get a quote, call 0345 464 0079 or email us with the location and a short description of the problem. You will have a clear quote before we start.

Ask for a quote

Read more

Should I try it myself first?

Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.

A DIY attempt doesn’t rule out a professional job. We cut it out and start again.

Quotes for fire rated sealant in Ashurst

The quote reflects the job in front of us. We take into account:

  • Access and height
  • Mould in or behind the old joints
  • When we can work, for business premises
  • The type of sealant required

Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs, plus any working-time requirements on site. Call for a quick quote and we will explain what it covers.

Helping us quote

You don’t need to know the technical terms. Just tell us:

  • How we’d reach the joints
  • The address or postcode of the job
  • What’s wrong with the joints now
  • Roughly how big the job is

Every job is quoted individually. Simply phone 0345 464 0079 or send us an email and describe the job and send photos if you have them.

Fire rated sealant around Ashurst

For seaside hotels, guest houses and holiday lets around Ashurst, heavy use in the busy months is hard on washroom and kitchen sealant, and any building work there should leave fire-rated joints made good. 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 work to the specification you are given, installing the product to its tested details.

For landlords with property near Ashurst New Forest station, new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant. For site and facilities teams at buildings such as Foxhills Infant School, fire-stopping around service openings should be restored whenever new services go in.

Ashurst is about 2 miles south of Totton, in Hampshire. From the centre of Ashurst to the outskirts, we cover fire rated sealant for every kind of property, from flats and houses to offices and hotels. Ashurst is one of 683 towns and villages in Hampshire where we work. You can also see our page for Southampton, about 6 miles away.

Every address in SO40 is covered for fire rated sealant, from the main roads to the quietest streets. If you need fire rated sealant at a property on Ash Grove, Cecil Avenue and Dene Road or anywhere close by, our applicators can take on the job. Neighbouring places we cover for fire rated sealant include Colbury (1 mile east), Lyndhurst (3 miles south-west), Emery Down (4 miles south-west), Balmerlawn (5 miles south) and Brockenhurst (6 miles south-west). Within a short drive, we also cover Winchester (14 miles north-east), Eastleigh (9 miles north-east), Fareham (14 miles east), Chandler's Ford (8 miles north-east), Hedge End (9 miles east) and Lymington (10 miles south).

What’s near Ashurst

Typical jobs here are in homes near Hounsdown School and The Forest Inn, among other places. For rail, the closest station is Ashurst New Forest station, roughly 0.7 miles south-west of the centre. Nearby you’ll also find Ashurst Hospital (0.6 miles south-west) and National Dairy Museum (0.5 miles south-east). Open spaces near Ashurst include Testwood Lakes.

Map of Ashurst © OpenStreetMap contributors

Questions from Ashurst

Can you do fire rated sealant in Ashurst?

Yes, Ashurst is within the area we cover. We work across London and the South East. You can ring 0345 464 0079 or send us an email and tell us what needs doing, and we’ll send you a clear quote.

Is Ashurst within the area you cover?

Yes. Ashurst is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.

Can you work in occupied buildings?

Yes. Occupied flats, HMOs, offices and schools are all fine, with access planned around residents or staff. Early starts or out-of-hours work can be arranged if that suits the building.

Do you seal gaps around fire door frames?

Yes, where the gap suits a sealant detail. We seal the frame-to-wall gap, not the door itself, and we’ll mention anything we notice about the door.

What information do you need?

Only a few details: the address or postcode, what’s wrong and any access issues. Then ring 0345 464 0079 or email us.

Can new sealant go over the old?

No. New silicone won’t bond to old silicone, and anything trapped underneath, including mould and water, stays there. It all has to come out first.

Can you match 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. Intumescent sealants are a type of fire-rated sealant and which one is used depends on the job.

For landlords and businesses

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.

Housing providers, facilities teams and property managers book us too. Several sites can be quoted together, and we’re fully insured for the work.

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