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

Fire Stopping in Flansham

We carry out fire-rated and intumescent sealing of service penetrations and linear gaps in Flansham. Send details for a fixed quote.

  • Snag lists that include open service penetrations
  • Non-fire-rated filler around services
  • Unsealed joints where partitions meet the slab
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Signed off, with 12 months’ guarantee.
London, the South East & Scotland
CHAS & Constructionline
Fully insured: £5m PL

Fire stopping for businesses in Flansham

Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.

On site: what to expect

Our CSCS-carded applicators arrive with the sealants, primers and backing rod the job calls for. Any old material is cut back to clean, sound faces, primer goes on where the manufacturer specifies it, and each bead is tooled to a neat concave finish. For a building around Flansham, tell us how to find it and who will meet us. Add it to your enquiry and we will build it into the plan.

  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. Old or wrong materials are cut out.
  4. Mineral wool or other backing is fitted where required.
  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.

Before we start on site

  • Warn occupants and staff about the work
  • Explain the parking and delivery arrangements
  • Flag any permit to work we will need

Getting a fixed quote

Specifications, drawings and tender packages are welcome with any enquiry, and we’ll price against exactly what is specified. For smaller jobs, photos and a description will do.

Get a price

Advice

About our fire stopping in Flansham

Opened ceilings and riser doors often reveal service openings nobody sealed. If a specification already covers those walls and floors, we can reseal to it using the product and detail it sets out. With no specification in place, the first step sits with your designer or fire engineer, not with us. We work on cable penetrations, small duct penetrations where the tested detail allows and linear gaps at wall heads, and the failures we’re asked to look at most are damaged fire seals in risers and voids and unsealed openings around new pipes and cables. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: in Flansham, that means joint design, primers and backing rod as standard.

Around smaller places like Flansham, penetration seals come up in schools, halls, pubs with rooms, care homes and farm buildings used as offices. If sealant is what the specification names, we install it around the services exactly as the maker’s detail sets out.

We stand behind the joints we seal: 12 months, guaranteed. It covers how we prepared and applied the sealant, and if something we did falls short, we return to it.

Location
Flansham (PO22)
Wider area
West Sussex
Guarantee
12 months on every job
Quotes
A fixed quote before we start
Call
01277 525 020
Page updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

Why deal with it now?

An open or wrongly sealed service penetration lets fire and smoke reach the next compartment much sooner than the building was designed for. Putting it right is normally a modest job when the openings are accessible. Wait until ceilings close or areas are occupied and the same work becomes harder to reach. One visit to deal with every failing joint makes more sense than several trips to a place like Flansham. Photos of every joint help us quote for the whole job.

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.

Why choose Mastic Doctor in Flansham

  • CHAS accredited contractor
  • Old sealant cut out, never sealed over
  • Sealing commercial buildings since 2005
  • One phone line for London, the South East and Scotland

Read how commercial sealant jobs are priced and our accreditations.

Your questions answered

Is a smaller place like Flansham outside your area?

No. Places such as Flansham are covered as much as the big towns. London and every South East county are within our area. Good photographs up front let us bring everything on the first visit.

Can you work in a care home near Flansham with residents in?

Yes. We agree rooms and times with the manager and work a few areas at a time. We follow the home’s own procedures throughout.

What’s the quickest route to a quote?

The quote form is the simplest route, though you can also call the office on 01277 525 020 or send photos by email. Include photos or drawings if you have them.

Do you offer coloured sealant?

Often, yes. Many products come in a range of standard colours, and matching to RAL references or surrounding finishes is often possible. We will confirm the colours available for the specified product.

How long before the joints can be used?

That comes down to the sealant and the temperature. Some products skin over quickly but need longer to cure fully, and we confirm it before leaving site.

What will the job cost?

We don’t publish prices, as every site differs. Send photographs or drawings and we will price it at a fixed figure.

What do BS EN 1366-3 and BS EN 13501-2 mean?

Penetration seals are tested to BS EN 1366-3 and linear joint seals to BS EN 1366-4. Results are classified under 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.

Penetration seals near Flansham

Central London is about 54 miles from Flansham. Office refits around the commuter belt bring new cabling through fire-resisting walls; the gaps need the specified seal. There are a number of hotels within about 2 miles of Flansham. Bedroom-to-corridor walls in hotels are normally fire-resisting, so new cabling or pipework through them has to be sealed to the tested detail.

For an estates team at a campus like University of Chichester (Bognor Campus) (1.5 miles south-west of Flansham), summer M&E works are usually followed by a round of penetration sealing. Hotels such as Ancton House Hotel (1.4 miles east of Flansham) rely on fire-resisting walls between bedrooms and corridors, and refits that add services leave penetrations to seal where fire-rated sealant is specified. Industrial units on estates such as Southern Cross Trading Estate (to the west of Flansham) often separate offices from warehouse space with fire-resisting walls, and new services through them need the specified seal.

Flansham is about 2 miles north-east of Bognor Regis, in West Sussex. We cover commercial sites throughout Flansham, for single jobs and planned programmes alike. We work across 373 places in West Sussex. Portsmouth is covered too, some 19 miles away.

Postcode districts covered here: PO22 for service penetrations. We also cover Bilsham (1 mile east), Lidsey (2 miles north-west), Shripney (2 miles west), Yapton (2 miles north-east) and Barnham (2 miles north) for service penetrations. Nearby towns on our patch include Worthing (11 miles east), Chichester (7 miles west), Selsey (8 miles south-west), Littlehampton (5 miles east), Lancing (14 miles east) and Rustington (6 miles east).

Around Flansham

Recent enquiries here include premises near Felpham Community College and The Brooks Local Nature Reserve. The nearest railway station is Barnham station, about 1.9 miles north. A little further out are Tote Copse Castle (3.1 miles north-west) and Bognor Regis Museum (2.3 miles south-west).

Map of Flansham © OpenStreetMap contributors

What affects the price in Flansham

These are the things that shape the price:

  • Travel to remote or island sites
  • The product specified
  • Quantities, in metres or numbers
  • Removal of failed or old sealant

The price depends on how many linear metres there are, how much old material needs removing and the access. Call for a quote once you have the details.

What to include in your enquiry

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

  • Clear photos of the problem areas
  • The site address and postcode
  • How the joints are reached, and at what height
  • Whether the building will be occupied during the work

The quickest route to a quote is a few photos and the site postcode. Upload them with the quote form, or speak to us on 01277 525 020 or email drawings and photos to discuss it first.

Site staff or a sealant specialist?

For most general trades, sealant is a sideline. A specialist prepares properly, controls joint depth and picks a product with the right movement class.

The visible bead is only part of the job. Backing rod, primer where specified and a joint designed to move with the building are easy to get wrong without experience.

Aftercare for building managers

To get the most from the new sealant:

  • Leave fire sealant to cure fully before covering it
  • Arrange inspection before areas are covered up
  • Put resealing into every M&E and fit-out package
  • Settle who seals which penetrations at the start of a project

After the work, brief anyone else working in the area that the openings are now sealed. Any seal cut back for a new service needs reinstating to its tested detail, by someone who knows the system.

Keep a register of where seals are and what they are made of. It tells the next contractor exactly what to reinstate, which saves guesswork.

When it isn’t the sealant

Before quoting, we check that sealant is the right answer. It won’t put right:

  • Large openings beyond what any sealant detail covers
  • Fire risk assessments, a job for a competent assessor
  • Gaps in walls that were never built as compartment walls

If in doubt, give us a call on 01277 525 020 or email a schedule or drawings and we will say what we think before you book.

Where we work in Flansham

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

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