The Mastic Doctor team standing beside their branded vans outside an office building
East Sussex · England

Fire-rated sealing and fire stopping in Blackness, East Sussex

Need fire stopping in Blackness? It’s simple: send details, get a quote, we seal, guaranteed.

  • Penetration schedules that need working through
  • Hidden openings found during inspections
  • Open linear gaps along the top of fire-resisting walls
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
South East, London & Scotland
CHAS accredited
Fully insured: £5m PL

Fire stopping across Blackness

Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.

About our fire stopping in Blackness

Most of our fire stopping work happens after the building is up. New cable runs, replaced pipework and extra data routes all punch holes in compartment walls, often unnoticed. Those on your schedule are closed with the specified product. The enquiries we see most involve old intumescent sealant that has split away and seals that don’t match their tested detail, on pipe penetrations, service gaps in risers and small duct penetrations where the tested detail allows. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: in Blackness, that means joint design, primers and backing rod as standard.

Smaller places such as Blackness still have buildings with fire-resisting walls and floors: schools, halls, care homes and commercial conversions. If sealant is what the specification names, we install it around the services exactly as the maker’s detail sets out.

The 12-month guarantee is for workmanship rather than wear and tear. How long a sealant joint lasts depends on movement, exposure, cleaning and use, so we spell out the cover before we begin.

The Mastic Doctor team standing beside their branded vans outside an office building
Where
Blackness (BN24)
Region
East Sussex
Guarantee
A 12-month guarantee
Quote
A fixed quote before we start
Phone
01277 525 020
Last updated
3 November 2026

Honest limits

We check first that sealant really is the fix. It won’t put right:

  • Deciding what a wall or floor needs, which belongs to the designer
  • Plastic pipes whose detail calls for a collar or wrap
  • Fire risk assessments, a job for a competent assessor

If in doubt, ring 01277 525 020 or send details through our quote form and we will say what we think.

What we seal

  • Pipe penetrations
  • Joints between fire-resisting walls and floors
  • Small duct penetrations where the tested detail allows
  • Service gaps in risers
  • Linear gaps at wall heads
  • Cable penetrations

Compartment walls and floors in Blackness

There are two care or nursing homes within about 2 miles of Blackness. Care homes rely on fire-resisting walls and floors, and maintenance work that breaks through them leaves openings to seal. Where that’s fire-rated sealant, we install it to the manufacturer’s tested detail. In England, Approved Document B covers fire stopping of openings and penetrations. The national BS 476 classes are due to drop out of it from 2 September 2029, leaving the European BS EN 13501-2 route, subject to transitional arrangements. What we install is set by the specification, and it goes in to the tested detail.

Where a unit on an estate such as Langsett Industrial Estate, which lies south-east of Blackness, has fire-resisting walls between offices and warehouse, any new service through them should be sealed to the tested detail. Residences at universities like University of Brighton Eastbourne Campus, 4.6 miles south of Blackness, have compartment walls that must be resealed whenever services change.

Blackness is about 2 miles north of Eastbourne, in East Sussex. Any commercial site in Blackness is covered, whether it’s a single job or part of a planned programme. Blackness is one of 308 places in East Sussex on our list. We also cover Brighton, around 18 miles from Blackness.

Postcode districts covered here: BN24. Buildings on Forge Place, Hailsham Road and Hankham Road are within our area. Sites close to Blackness are covered too, including Hankham (1 mile north-east), Stone Cross (1 mile south-east), Polegate (2 miles west), Lower Willingdon (2 miles south-west) and Willingdon (2 miles south-west). Bigger towns within reach include Hastings (12 miles east), Bexhill-on-Sea (8 miles east), Seaford (9 miles west), Lewes (13 miles west), Hailsham (3 miles north-west) and St Leonards (12 miles east).

What’s near Blackness

Around Blackness, our work takes us to commercial buildings near Causeway School and The Red Lion pub and the streets around them. For rail, the closest station is Pevensey & Westham station, about 1.5 miles east of the centre. A little further out are Pevensey Court House Museum And Gaol (1.9 miles east) and Eastbourne District General Hospital (2.5 miles south-west). For a walk, there’s Combe Hill.

Map of Blackness © OpenStreetMap contributors

What the job involves on each surface

Drylining partitions

Drylined fire walls are tested in a particular build-up. We check that the product’s detail covers that partition type and board thickness first.

Small ducts

Some fire-rated sealant details cover small ducts. Bigger ducts and fire-resisting ductwork are normally handled with other products and we flag that rather than guess.

Diagnose, treat, sign off

Before we leave any area, we remove the tape, clean down and inspect every joint, ready for your sign-off. Where the sealant needs time to cure before use, we tell you and sign the area. For work around Blackness, we aim to finish in one visit, so photos and measurements up front really help. Then the right materials arrive with us.

  1. We read the specification, drawings or penetration schedule you send and raise any questions before we price.
  2. On site, each opening is checked against the tested detail it is meant to follow.
  3. Anything that doesn’t belong in the opening, such as expanding foam or general-purpose filler, is removed.
  4. We fit the backing the detail asks for, to the stated depth.
  5. Fire-rated or intumescent sealant is gunned in to the specified depth, then tooled.
  6. If an opening needs something other than sealant, we tell you instead of improvising.

Preparing the site

  • Point out any areas we must not close
  • Let us know about inductions and permits
  • Move anything stored against the joints

Ask for a quote

Quotes are fixed against the scope you send, so you know the figure before anyone is on site. To start the process, call the office on 01277 525 020 or email the details over.

Get a quick quote

Related advice

Common questions from Blackness clients

Will you take on work at estates like Langsett Industrial Estate, close to Blackness?

Yes, sites like Langsett Industrial Estate are within our area, along with the rest of Blackness. To start, just call the office on 01277 525 020 or send photos by email with the unit, the joints involved and your access times.

Will you work in a care home in Blackness without moving residents out?

Yes. We work around residents’ routines, a room or two at a time. Noise and disruption are kept to a minimum.

Do you guarantee your work?

Yes, for 12 months. If our installation fails in that time, we return and fix it.

Do you work in Blackness?

Yes. Blackness falls within our area, and you can call the office on 01277 525 020 or email us to get started.

Do you work to architects’ specifications?

Yes. Send it with your enquiry, and the quote will be based on it, flagging anything that needs clarifying.

Are you members of a third-party fire-stopping installer scheme?

No, and we’d rather be clear about that. Third-party schemes aren’t a legal requirement, but many clients and main contractors ask for them. If it doesn’t require one, we can install the specified fire-rated sealant to its tested detail.

What will the job cost?

We don’t publish prices, because every site is different. With photographs or drawings, we can give you a fixed quote.

Do you need fire stopping in Blackness?

Fire stopping can get squeezed at the end of a programme, or done by whoever is on site. That is how unsuitable products and improvised details end up in compartment walls.

Things that typically lead to an enquiry:

  • Damaged fire seals in risers and voids
  • Fire-rated sealant that has cracked or shrunk back
  • Seals that don’t match their tested detail
  • Unsealed openings around new pipes and cables

Colleges such as East Sussex College Eastbourne, 2.4 miles south of Blackness, add IT and services as courses change, and each new penetration through a fire-resisting wall needs sealing with the specified product.

Questions to ask before you book

  • Whether old or failed sealant will be cut out, not overlaid
  • Can the work be phased to keep areas open?
  • The named product and why it was chosen
  • What site paperwork they can supply

How to choose a sealant contractor

Site staff or a sealant specialist?

Some joints are best left to specialists: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. Getting these wrong normally costs more in the end than doing them right.

A short, simple internal joint is often within reach of a maintenance team. The usual problems come from preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.

After the work

Your facilities or cleaning team can help the joints last. Pass these on to them:

  • Flag new cables with no seal around them
  • Don’t let anyone top up a fire seal with the wrong product
  • Ask which product is in place before decorating
  • Arrange inspection before areas are covered up

Don’t patch a fire-rated seal with anything outside its tested detail. A repair should use the original product, installed the same way.

Write fire stopping into the scope of any work crossing a compartment wall or floor. That way the opening is sealed while the trade and access are still there.

Accreditations

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