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

Fire-rated sealing and fire stopping in East Dean, West Sussex

Fire-rated and intumescent sealing of service penetrations and linear gaps across East Dean, by CSCS-carded applicators. CHAS accredited and fully insured.

  • Fire-rated sealant that has cracked or shrunk back
  • Openings found when ceilings come down for a refit
  • Unsealed openings around new pipes and cables
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
South East, London & Scotland
CHAS accredited
£5m PL insurance

Fire stopping in East Dean

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

FAQs: East Dean

Is East Dean too small for you to travel to?

No. Places such as East Dean are covered as much as the big towns. We cover Greater London and the counties of the South East. Where we can, we group nearby jobs to make the most of each trip.

How does the removal of BS 476 from Approved Document B affect fire-rated sealing in East Dean?

References to BS 476 classes are being removed from Approved Document B from 2 September 2029, after which BS EN 13501-2 classification is the route, subject to transitional arrangements. Whichever applies, we install the specified product to its tested detail; the specification is for the designer to set.

How do I request a quote?

It works in four steps: send details, receive a fixed quote, we carry out the work, and it’s guaranteed. The first step only needs photos and a postcode.

Do you work to architects’ specifications?

Yes. We follow the specification, along with the manufacturer’s installation guidance, and we raise anything unclear before work begins.

When can you be on site?

Give us your site hours and any access windows in your enquiry, and we will schedule the work to suit. You can reach the office between 8am and 5pm, Monday to Friday.

How long before the joints can be used?

We will confirm how long the chosen product needs to cure, and sign any area that should be left alone.

When is resealing likely to be due?

It depends on movement, UV and weather, cleaning, traffic and the product. Treat them as maintenance items and inspect them regularly.

About our fire stopping in East Dean

Sealant is the specified answer for plenty of openings, such as metal pipes, cables and some small ducts where the detail covers them. Larger openings and some plastic pipes call for collars, wraps, batts or boards instead. If the detail calls for something other than sealant, we say so rather than force sealant into it. If you have expanding foam used as fire stopping and service penetrations left open after M&E works, we can put it right, on joints between fire-resisting walls and floors, linear gaps at wall heads and small duct penetrations where the tested detail allows alike. For commercial sealant work in East Dean, you deal with one contact from quote to sign-off, for single jobs and planned programmes alike.

For a smaller site near East Dean, we plan to do all the penetrations in one go, so send the specification and photographs first. We install to the specification and the manufacturer’s guidance, leaving design and sign-off with the designer and building control.

The 12-month guarantee covers our workmanship: the preparation, the sealing and the tooling. It doesn’t extend to damage, other trades’ later work or movement the joint was never designed to take.

Location
East Dean (PO18)
Region
West Sussex
Cover
A 12-month guarantee
Quote
A fixed quote before we start
Phone
01277 525 020
Updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

What affects the price in East Dean

The price varies from site to site. Expect it to depend on:

  • Whether old sealant has to be cut out first
  • Joint width, depth and condition
  • The site’s rules and procedures
  • Travel to remote or island sites

No two sites price the same: the joint sizes, the specified product, access and working hours each have a bearing. Send the details and a fixed figure follows.

Sending details for a quote

Diagnosis starts before we arrive. Let us know:

  • Specification clauses that apply
  • Anything awkward about access or site hours
  • The type of building and who uses it
  • A wide shot and a close-up of the area

To get a fixed quote, speak to us on 01277 525 020 or email the details over, telling us the site location and the nature of the job. Our quote form is another easy route.

Aftercare for building managers

After handover, these steps help:

  • Include service cupboards in routine inspections
  • Keep general-purpose fillers away from compartment walls
  • Record which product was used where
  • Get seals inspected before ceilings and boxing close

During planned inspections, look at seals in risers, cupboards and voids. Watch for cracked sealant, new services with no seal and openings that have grown and get them dealt with.

On fit-outs, get the fire-stopping specification agreed before the services go in. The designer can then choose details that suit the services planned, and the work runs in step with the M&E.

Why act early in East Dean

It is cheaper to seal service penetrations as each services package finishes than to come back for them later. While the area is still open, every opening is easy to see and reach, and the right detail can be checked at the time. Around East Dean, it’s better to renew all the failing joints at once, rather than one at a time. Photos of every joint help us quote for the whole job.

The specified product makes a difference, as does the preparation each joint needs. Access, phasing and site rules also count.

What you get with us

  • Sealing commercial buildings since 2005
  • Work carried out by CSCS-carded applicators
  • 12 months’ guarantee on every job
  • CHAS accredited contractor

See how commercial sealant jobs are priced or our accreditations.

From enquiry to sign-off

Site rules come first: sign-in, induction and whatever permit system the building uses. With the paperwork done, we take the joints in the sequence agreed with you, and each area is checked before we leave it. Smaller jobs around East Dean can be grouped with others nearby, which keeps travel down. You’ll have a fixed quote before work starts.

  1. First we confirm the product and tested details named in the specification.
  2. We sort the openings by the detail each one needs.
  3. Improvised fillers and failed sealant are removed.
  4. Where the detail needs backing, it goes in at the stated depth.
  5. Fire-rated or intumescent sealant goes in around the services and is tooled off.
  6. Completed areas are checked with you, with the records agreed when we quoted.

Preparing the site

  • Agree which areas must stay open
  • Make sure the joints can be reached
  • Point out parking and an unloading spot

Get a fixed quote

Pricing a project or setting a maintenance budget? Send the scope and any drawings, and we’ll return a fixed quote that you can work with. For a chat about it beforehand, ring 01277 525 020 or send photos by email.

Ask for a quote

Advice

What sealant work can’t fix

Being straight saves everyone time. Fresh joints won’t solve:

  • Construction that lacks the fire resistance the seal relies on
  • Designing or specifying fire stopping, which sits with the designer or fire engineer
  • Signing off or certifying a building’s fire stopping

Not sure which it is? You can phone 01277 525 020 or send photos by email and we’ll tell you honestly.

What we seal

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

Compartment walls and floors in East Dean

Central London is about 49 miles from East Dean. Offices around the capital are refitted often, and the cabling that follows can breach fire-resisting walls, and the gaps need sealing with the specified product. For England, the fire stopping of penetrations is dealt with in Approved Document B. Its BS 476 references are being withdrawn from 2 September 2029, with BS EN 13501-2 classification taking over, subject to transitional arrangements. Either way, we install the specified product to its tested detail.

Hospital estates such as Chichester Centre, 5 miles to the south-west of East Dean, are divided into fire compartments, and any service penetration through them should be sealed to the specified, tested detail. In a hotel such as Woodstock House Hotel, 1 mile to the west of East Dean, new pipework or cabling through bedroom and corridor walls needs sealing with the specified product. In a building such as The Parish Church of All Saints, any service penetration through a fire-resisting wall should be sealed to the specified detail.

East Dean is about 6 miles north-east of Chichester, in West Sussex. If you are looking for fire stopping in East Dean, we can help. East Dean is one of 373 places in West Sussex on our list. Portsmouth is covered too, some 17 miles away.

We take on service penetrations across the PO18 postcode area, whatever the building. Streets here include Main Road, Chapel Row and Charlton Road. If your building is just outside East Dean, we cover Charlton (1 mile west), Singleton (2 miles west), West Dean (3 miles west), Heyshott (3 miles north) and Cocking (3 miles north-west). A short drive away, we cover Worthing (15 miles south-east), Bognor Regis (8 miles south), Chichester (6 miles south-west), Selsey (13 miles south), Littlehampton (11 miles south-east) and Rustington (11 miles south-east).

Around East Dean

In East Dean, that means premises near The Star And Garter Public House, among other places. Nearby you’ll also find Weald and Downland Gridshell (1.8 miles west) and Chichester Centre (5 miles south-west). The countryside around East Dean includes Graffham Common and Levin Down.

Map of East Dean © OpenStreetMap contributors

Owners, agents and contractors

When you manage a building on behalf of an owner, clear figures and clear communication matter. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative, plus a 12-month guarantee.

CHAS accredited and a Constructionline member, we make supplier vetting simple. We’re fully insured, and our insurance certificate can go with the quote.

Accreditations

Trusted. Accredited. Insured.