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

Fire-rated sealing and fire stopping in Stone Cross, East Sussex

Our CSCS-carded applicators take on fire-rated and intumescent sealing of service penetrations and linear gaps in Stone Cross. Send details for a fixed quote.

  • Damaged fire seals in risers and voids
  • Penetration schedules that need working through
  • Seals that don’t match their tested detail
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Signed off, with 12 months’ guarantee.
London, the South East & Scotland
CHAS & Constructionline
£5m PL insurance

Fire stopping near Stone Cross

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

Surface by surface

Linear joints

Head-of-wall joints often have to absorb slab deflection. The specified product and backing for that movement are what goes in, along the full length of the run.

Plastic pipes

In a fire, plastic pipework melts away and leaves an opening. Some intumescent sealants are tested on smaller plastic pipes. We check the pipe material and diameter against the detail before we start.

Fire stopping in Stone Cross, done properly

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, and they are easy to forget. We close the openings listed on your schedule, using the specified sealant and detail. If you are dealing with unsealed joints where partitions meet the slab and unsealed openings around new pipes and cables, we can help. A specialist sealant contractor works differently from a general builder: in Stone Cross, that means joint design, primers and backing rod as standard.

Around Stone Cross, penetration and linear seals tend to be one-building jobs. With the specification and photos of the gaps, we can give a fixed quote and bring the right products.

A 12-month guarantee applies to all our work in East Sussex. If an installation problem shows up, call the office on 01277 525 020 or use the quote form and we will arrange a return visit.

Location
Stone Cross (BN24)
Wider area
East Sussex
Cover
12 months on our workmanship
Quote
A fixed quote before we start
Phone
01277 525 020
Last updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

Maintenance after handover

Keep the joints in good shape with a few simple steps:

  • Ask the designer to confirm details early on refits
  • Check risers and ceiling voids after each round of works
  • Put resealing into every M&E and fit-out package
  • Foam or ordinary sealant is never a fire-seal repair

Add risers, plant rooms and ceiling voids to routine fire-stopping checks. Watch for cracked sealant, new services with no seal and openings that have grown, and report them promptly.

Keep a register of where seals are and what they are made of. When a new service goes through, everyone knows which product and detail to match.

Do you need fire stopping in Stone Cross?

Head-of-wall joints and wall-to-wall junctions are frequent weak points. Movement in the frame or slab can open the joint. Linear joint details set a width range and movement capability, and the seal has to sit within them.

Any of the following is a good reason to get the joints checked over:

  • Fire seals cut back for extra cables and never reinstated
  • Non-fire-rated filler around services
  • Open linear gaps along the top of fire-resisting walls
  • Fire-rated sealant that has cracked or shrunk back

For an estates team at a campus like University of Brighton Eastbourne Campus, 4.4 miles to the south of Stone Cross, summer M&E works are typically followed by a round of penetration sealing.

Comparing quotes

  • Will RAMS and insurance details be available?
  • Whether their applicators hold CSCS cards
  • Which product they’ll use, and why it suits the joint
  • Whether old or failed sealant will be cut out, not overlaid

Our contractor checklist

Your questions answered

Is Stone Cross too far out for you?

Not at all: smaller places are covered as well as towns. We work across Greater London and the South East. Where we can, we group nearby jobs to make the most of each trip.

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

Yes, sites like Langsett Industrial Estate are within our area, along with the rest of Stone Cross. Photos and a short description are enough for a first look.

What does an EI 60 rating mean?

Penetration seals are tested to BS EN 1366-3 and linear joint seals to BS EN 1366-4. Classification follows BS EN 13501-2, where E is integrity, I is insulation and the number is minutes, as in EI 60. The rating applies to the product as tested.

When is resealing likely to be due?

There isn’t a single answer, because life depends on how much the joint moves, how exposed it is and how it’s cleaned and used. Regular inspection is the best way to catch problems early.

What do you charge?

There isn’t a price list, because every site is different. With photos or drawings, we can give you a fixed quote.

Do you guarantee your work?

Yes. It runs for twelve months and covers how we prepared and sealed the joints, but not damage, misuse or other trades’ work.

Is colour matching possible?

In many cases, yes. Many products come in a range of standard colours, and matching to RAL references or surrounding finishes is often possible. We confirm what’s available for the specified product when we quote.

Diagnose, treat, sign off

The first thing on site is a walk round with your contact, to confirm the scope, the order of work and any areas we must keep clear. Then we strip out anything that has failed, prepare every joint and seal it. Work in places the size of Stone Cross is planned as a single visit where we can. Clear photos and measurements help us bring the right products.

  1. First we go through the drawings, schedule or specification for the seals.
  2. Every penetration is compared with its detail: wall or floor type, service, gap size and depth.
  3. Anything that doesn’t belong in the opening, such as expanding foam or general-purpose filler, is removed.
  4. Mineral wool or other backing goes in wherever the detail asks.
  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.

What we need from you

  • Move anything stored against the joints
  • Send your site hours and access windows
  • Share the asbestos register for older buildings

Request a quote

If there’s a specification, drawings or a tender package, send it with your enquiry, and we will price against exactly what is specified. For smaller jobs, photos and a description will do.

Get a price

Read more

Commercial clients in Stone Cross

Housing associations and managing agents often need work done across blocks and communal areas. We phase the work so people keep access, with each stage agreed with your site contact.

Planned maintenance programmes are welcome: working through a building or an estate in stages that fit your budget. Sites in Stone Cross can sit alongside others in a wider programme across East Sussex.

How the quote is worked out

Your fixed quote is built from the real scope. It takes account of:

  • Specialist products, such as fire-rated or hygienic sealants
  • Site requirements such as inductions and permits
  • How much existing material needs removing
  • Phasing around occupants

Small jobs and large programmes are priced from the same things: scope, access, product and programme. Call for a quote, and you’ll have a fixed figure to work with.

Before you send an enquiry

It doesn’t need to be a full survey. These details are enough to start:

  • The postcode of the building
  • Any dates the work must fit around
  • Drawings or a marked-up plan, if available
  • Clear photos of the problem areas

A handful of photos and a postcode is the fastest way to a quote. Upload them with the quote form, or ring 01277 525 020 or email a schedule or drawings to discuss it first.

Compartments and services around Stone Cross

Stone Cross is about 50 miles from central London. Offices around the capital are refitted often, and the cabling that follows can breach fire-resisting walls. Approved Document B is the English guidance that covers fire stopping around openings and penetrations. Its BS 476 references are being withdrawn from 2 September 2029, with BS EN 13501-2 classification taking over, subject to transitional arrangements. What we install is set by the specification, and it goes in to the tested detail.

Colleges such as East Sussex College Eastbourne, 2.2 miles to the south-west of Stone Cross, add IT and services as courses change, and each new penetration through a fire-resisting wall needs sealing with the specified product. Industrial units on estates such as Langsett Industrial Estate (to the east of Stone Cross) often separate offices from warehouse space with fire-resisting walls, and new services through them need the specified seal.

Stone Cross is about 2 miles north of Eastbourne, in East Sussex. Stone Cross sits inside our coverage, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. Across East Sussex, 308 places are covered, including Stone Cross. We also cover Brighton, some 19 miles away.

If you need fire stopping in BN24, the process matches everywhere else we work: send details, get a quote, we seal, guaranteed. Streets here include Millers Keep, Geering Road and Nutley Mill Road, and sites on any of them can send details for a fixed quote. Nearby places we also cover include Blackness (1 mile north-west), Hankham (1 mile north), Willingdon (2 miles south-west), Lower Willingdon (2 miles west) and Polegate (2 miles 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 (4 miles north-west) and St Leonards (11 miles east).

Landmarks near Stone Cross

Around Stone Cross, our work takes us to commercial buildings near The Red Lion pub and Causeway School, among other places. For rail, the closest station is Pevensey & Westham station, roughly 1.3 miles east. Well-known places in the area include Eastbourne District General Hospital (2.4 miles south-west) and Pevensey Court House Museum And Gaol (1.6 miles east). Not far away are Combe Hill.

Map of Stone Cross © OpenStreetMap contributors
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