East Sussex · England

Fire Rated Sealant in Herstmonceux

Professional fire rated sealant in and around Herstmonceux, with old sealant always removed completely and a one-year guarantee.

  • Door frames with gaps between frame and wall
  • Damaged fire sealant left by other trades
  • Holes left by a change of layout

Trusted fire rated sealant in Herstmonceux

Fire rated sealant for homes and businesses in Herstmonceux

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. We check the size and the substrate before choosing the product, then apply it to the depth its tested detail calls for. We work on plasterboard & masonry, service penetrations and door frames, and the jobs we see most are gaps flagged on a fire risk assessment and linear gaps at the head of walls.

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

You get a one-year guarantee, the same in Herstmonceux as everywhere else we work.

Location
Herstmonceux (BN27)
Region
East Sussex
Guarantee
One year on every job
Quotes
Quoted before any work starts
Telephone
0345 464 0079
Updated
26 October 2026
The Mr Mastic team in navy uniforms in front of three Mr Mastic vans

Looking after it afterwards

So the new joints stay in good condition:

  • Get damaged fire seals looked at promptly
  • Do not fill fire-stopping gaps with ordinary foam or silicone
  • Tell trades working in the building that fire seals must be put back
  • Don’t paint over fire sealant until it has cured

Keep the record we give you with the building’s fire safety documents. It helps whoever checks the building next.

If a fire risk assessment has flagged a gap, don’t leave it for the next one. Get it sealed and recorded.

What affects the cost of fire rated sealant

Jobs vary more than people expect. The main factors:

  • Any mould that needs treating
  • The product the joint needs
  • When we can work, for business premises
  • Access and height

The cost depends on the size of the job, how hard the old material is to remove and how easy the joints are to reach. We give a clear quote before work begins.

Helping us quote

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

  • Access, such as stairs, a lift or height
  • What’s wrong with the joints now
  • Pictures of the joints, sent by email
  • Whether it’s a home or a business

Call for a quick quote, or email us if that’s easier. Describe what needs sealing and we will talk you through the work before giving you a price.

DIY sealant or a professional job?

Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.

Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.

How it works

On the day, we start by going over the job with you. Surfaces next to the work are protected before any work begins. Most jobs take anything from a few hours to several days, depending on how many gaps there are. Somewhere like Herstmonceux needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.

  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 faces cleaned.
  4. The specified fire-rated sealant goes in over any backing its detail requires.
  5. Every location is recorded with the product used.

Getting ready for the visit

  • Let us know about parking restrictions
  • Mention any tricky access
  • Tell us about any previous sealing or DIY attempts

Getting a quote

There’s no standard price list, because every job is different. Instead, your job gets its own clear quote. To get started, ring 0345 464 0079 or send us an email.

Ask for a quote

Advice

Work for landlords, hotels and businesses

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

We work for landlords and agents as well as homeowners. Sealant work between tenants keeps a property looking cared for.

Herstmonceux: your questions answered

Do you cover Herstmonceux for fire rated sealant?

Yes, Herstmonceux is within the area we cover. We work across London and the South East. You can ring 0345 464 0079 or drop us an email and let us know what needs doing, and we will send you a clear quote.

Is fire rated sealant in Herstmonceux guaranteed?

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

What does fire rated sealant cost?

We don’t publish prices, because the cost depends on the job: how much there is, what’s there now, how we reach it and what it needs. You will get a clear quote before any work starts.

Can you match the sealant colour?

In most cases you can choose. We’ll explain which colours are available and agree one before we start.

Do I need to be at home?

For indoor joints, yes, someone needs to let us in. Once we have agreed the job, you do not need to watch us work.

Do you work in flats, HMOs and commercial buildings?

Yes, whether the building is a school, an office, flats or an HMO, and whether it’s in use or not. Tell us how the building is used and we will plan around it.

Can tenants book the work?

Yes. Check with your landlord; we can send the quote to them too.

How long will you be here?

Typically it takes anything from a few hours to several days, depending on how many gaps there are. Larger jobs naturally take longer.

Different surfaces, different methods

Plasterboard walls

Service holes in plasterboard are often rough and oversized. Where a hole is bigger than the sealant’s tested range, it needs another approach and we’ll flag 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.

When to call us in Herstmonceux

In some buildings the gap was filled with the wrong thing in the first place: ordinary expanding foam, standard silicone or decorators’ caulk where a fire-rated seal was needed. It may look fine, but it is not a fire-rated seal.

If you can see any of these, it’s time to have the joints looked at:

  • Fire seals that have cracked with movement
  • Standard silicone or caulk in a fire-stopping gap
  • Damaged fire sealant left by other trades
  • Unsealed gaps around fire door frames

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

Before booking anyone

  • How much experience the applicator has
  • What preparation is included
  • What happens if they find a problem under the old sealant
  • Whether they seal over old material or remove it

Our hiring checklist

What fire rated sealant looks like in Herstmonceux

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 Herstmonceux Church of England Primary School, service openings in fire-resisting walls need checking after any refurbishment.

Herstmonceux is about 3 miles north-east of Hailsham, in East Sussex. Wherever you are in the BN27 postcode area, we cover fire rated sealant for homes and businesses. Our East Sussex coverage runs to 289 places, Herstmonceux among them. Brighton is on our list too, around 20 miles away.

Postcode districts we cover here for fire rated sealant: BN27. If you need fire rated sealant at a property on Fairlawns Drive, Dacre Road and Fiennes Road or a nearby road, our applicators can take on the job. If you are just outside Herstmonceux, we cover Chapel Row (1 mile south-east), Stunts Green (1 mile north-west), Flowers Green (1 mile south), Windmill Hill (1 mile east) and Golden Cross (1 mile south). We also work in nearby towns such as Eastbourne (7 miles south), Hastings (11 miles east), Bexhill-on-Sea (7 miles south-east), Seaford (12 miles south-west), Lewes (14 miles west) and Hailsham (3 miles south-west).

Near you in Herstmonceux

Typical jobs here are in homes near Woolpack Inn and the streets around them. Other landmarks nearby include Amberstone Hospital (2 miles west) and Herstmonceux Castle (1.6 miles south-east).

Map of Herstmonceux © OpenStreetMap contributors
20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job