West Sussex · England

Fire-rated sealant in Elsted, West Sussex

Intumescent and fire-rated sealant around gaps, frames and service penetrations for Elsted, backed by a one-year guarantee. Call for a quick quote.

  • Seals cut through by electricians, plumbers or data installers
  • Gaps flagged on a fire risk assessment
  • Open gaps behind door architraves

Fire rated sealant in Elsted

Fire rated sealant for homes and businesses in Elsted

Ordinary silicone or decorators’ caulk in a fire-stopping gap is not a fire-rated seal. We cut out the wrong material and the gap is resealed with a product tested for that use. We work on linear gaps, service penetrations and plasterboard & masonry, and people most often call us about open holes round services passing through fire walls and open joints along the top of partitions.

Somewhere as small as Elsted, commercial jobs tend to be pubs, holiday lets, farm buildings or halls rather than offices. They all have washrooms, kitchens and service openings that need the right sealant.

You get a 12-month guarantee, the same in Elsted as everywhere else we work.

Where
Elsted (GU29)
Wider area
West Sussex
Cover
12 months on all our work
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

How to look after the new joints

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

  • Allow for resealing whenever new services are run
  • Don’t fill fire-stopping gaps with ordinary foam or silicone
  • Make resealing part of every contractor’s brief
  • Take pictures of fire stopping before ceilings or boxing go back

Tell other trades that the gaps have been sealed, and ask them to reseal anything they cut through. Later work is a common cause of damaged fire stopping.

A gap left open in a fire-resisting wall or floor lets smoke spread in ways the building wasn’t designed for. Sealing it early is a simple step to take.

Elsted questions

Do you cover smaller places like Elsted?

Yes, Elsted is covered. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.

Is fire rated sealant in Elsted guaranteed?

All our work, in Elsted and everywhere else, comes with a 12-month guarantee. We are fully insured, and an ARBOMaster approved applicator.

Is it OK to seal over old sealant?

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

Can you tell me how many minutes the seal will last?

We do not give ratings or certificates for our work. The requirement comes from your assessor, designer or building control, and we fit a product whose tested details meet it.

I rent my home. Can I book you?

We can work for tenants, landlords or agents. Just make sure your landlord agrees.

Can you fill the gap behind a fire door frame?

Yes. We seal the gap between the frame and the wall with a suitable fire-rated product. The door, its seals and closer are for a door specialist.

Do you provide details of the products used?

Yes. You get a list of where we worked and what we used to keep with your fire safety documents.

Can you work in occupied buildings?

Yes. We work in flats, HMOs, schools, offices and other commercial buildings, including occupied ones. We agree access and the order of work with you first.

Commercial buildings in Elsted

Workplaces and the common parts of blocks of flats in England need a fire risk assessment under the Regulatory Reform (Fire Safety) Order 2005, 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.

Community buildings like The Parish Church of St Paul are part of the picture too: service openings in its walls need the right fire-rated sealant, as in any building.

Elsted is about 5 miles south-east of Petersfield, in West Sussex. We carry out fire rated sealant for homes and businesses in Elsted, as part of our work across West Sussex. Across West Sussex, we cover 371 places, and Elsted is one of them. You can also see our page for Portsmouth, about 15 miles away.

We work across the GU29 postcode area for fire rated sealant and the streets around it. Neighbouring places we cover for fire rated sealant include East Harting (1 mile west), Elsted Marsh (1 mile north-east), Didling (1 mile south-east), Nyewood (2 miles north-west) and Dumpford (2 miles north-east). Within a short drive, we also cover Bognor Regis (14 miles south-east), Chichester (9 miles south), Emsworth (9 miles south-west), Portfield (10 miles south), Yapton (14 miles south-east) and East Wittering (14 miles south).

Around Elsted

Around Elsted, our work takes us to homes and buildings near The Three Horseshoes Public House and the streets around them. A little further out are Midhurst Community Hospital (4.7 miles east). Green spaces nearby include Iping and Stedham Commons and Oakham Hill.

Map of Elsted © OpenStreetMap contributors

DIY sealant or a professional job?

Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.

If you’re set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it does not work out, we can still put it right.

The process

The work is kept neat and contained to the area we’re working on, so you can carry on as normal. The job generally takes anything from a few hours to several days, depending on how many gaps there are. In a small place like Elsted, access is generally the main thing to plan. 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. Backing or fill is fitted where the product’s tested detail calls for it.
  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.

Before we arrive

  • For indoor joints, keep the area dry beforehand if you can
  • For business premises, tell us about site rules or sign-in
  • Tell us if parking is tricky

How to get a quote

Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we will explain what’s involved.

Get a price

Related advice

When something else is needed

We won’t take on work that will not last, so here’s what sealant cannot put right:

  • Large holes that need a different fire-stopping system
  • Doors that are not fire doors in the first place
  • Construction that doesn’t provide fire resistance on its own

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

Joints and surfaces we work on

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

Surface by surface

Plasterboard walls

In plasterboard walls, the condition of the board edge matters. Crumbling edges are cleaned back before the sealant goes in.

Masonry and concrete

Core-drilled and broken-out holes in concrete are often irregular. We check the gap size around the service against the product’s tested range.

When to call us in Elsted

Many open fire-stopping gaps are made after the building is finished. 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:

  • Ordinary sealant used where a fire-rated product was needed
  • Gaps where walls meet ceilings or slabs
  • Gaps left after a refit or conversion
  • Gaps flagged on a fire risk assessment

In and around Elsted, as anywhere, good fire rated sealant starts with a clean, dry, properly prepared joint.

Comparing quotes

  • What insurance they hold
  • Who does the work, and how experienced they are
  • What happens if the job turns out different
  • Whether you can choose the colour

10 questions to ask before you book

What affects the quote in Elsted

Every job gets its own quote. This is what makes a difference:

  • How much there is to do
  • The number of rooms or windows
  • Mould in or behind the old joints
  • The old material and how stubborn it is

A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether we need extra access for height. Your quote takes all of that into account.

Asking for a quote

You do not need to know the technical terms. Just tell us:

  • How many joints, rooms or windows are involved
  • What’s wrong with the joints now
  • Any access issues, like height or stairs
  • Where the job is, and your postcode

Need a quote? Please phone 0345 464 0079 or send us an email and tell us about the job. You’ll know what we plan to do, and what it will cost, before any work begins.

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