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

Fire-rated sealing and fire stopping in Westbourne, West Sussex

Our CSCS-carded applicators take on fire-rated and intumescent sealing of service penetrations and linear gaps in Westbourne and the surrounding area. Send photographs or drawings for a fixed quote.

  • Openings left by services added after handover
  • Fire sealant pulled out of the opening
  • Fire-stopping items raised at inspection or handover
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
London, the South East & Scotland
Constructionline member
£5m public liability

Fire stopping in Westbourne

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

Where services cross fire walls in Westbourne

Westbourne has several hotels close by, all within 2 miles. In hotels, bedroom and corridor walls are normally fire-resisting, so services added in a refit need sealing with the specified product. 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.

For a hospital such as Spire Hospital Portsmouth, 1.4 miles to the west of Westbourne, penetration sealing is usually phased ward by ward, with infection-control rules agreed first. Tenant changes at parks like Hambrook Business Park (2 miles east of Westbourne) bring new data and services, and openings through fire-resisting walls need the specified seal.

Westbourne is about 3 miles east of Havant, in West Sussex. Looking for fire stopping in Westbourne? We can help. 373 places across West Sussex fall within our area, including Westbourne. For work in that direction, see our Portsmouth page.

We take on service penetrations across the PO10 postcode area, whatever the building. For a building on The Square, Church Road and Crockford Road or nearby, send details and we will quote for service penetrations. Sites close to Westbourne are covered too, including Lumley (1 mile south), Woodmancote (1 mile east), Emsworth (1 mile south-west), Southbourne (1 mile south-east) and Denvilles (2 miles west). Further afield, our area takes in Bognor Regis (12 miles south-east), Chichester (7 miles east), Selsey (11 miles south-east), Portfield (7 miles east), Yapton (14 miles east) and East Wittering (7 miles south).

What’s near Westbourne

Around Westbourne, our work takes us to commercial buildings near Stansted Park, The Good Intent Public House and Bourne Community College. Westbourne’s nearest station is Emsworth station, roughly 1 mile south-west. Well-known places in the area include Warblington Castle (2.2 miles south-west) and Havant War Memorial Hospital (2.8 miles west). Green spaces nearby include Stoke Down and Brook Meadow (Emsworth).

Map of Westbourne © OpenStreetMap contributors

About our fire stopping in Westbourne

Where pipes, cables and other services cross a compartment wall or floor, the opening around them has to be closed so fire and smoke can’t move between compartments. Our part is installing fire-rated and intumescent sealant at those openings and along linear gaps, where the specification calls for it. We work to the product’s tested detail for every seal, not a rule of thumb. We work on pipe penetrations, service gaps in risers and joints between fire-resisting walls and floors, and what we are called in for most is fire sealant pulled out of the opening and unsealed penetrations discovered above suspended ceilings. Whether you call it commercial sealant work, mastic application or joint sealing, in Westbourne it comes down to the same thing: failed joints cut out, faces prepared and the right sealant laid to the right depth.

Smaller places such as Westbourne 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.

A 12-month guarantee applies to all our work. Should something we installed fail, phone 01277 525 020 or email the details over and we’ll come back to it.

Where
Westbourne (PO10)
Region
West Sussex
Guarantee
12 months on every job
Quotes
Fixed quote, scope in writing
Phone
01277 525 020
Last updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

FAQs: Westbourne

Can you seal penetrations in a hotel in Westbourne after a refit?

Yes, where fire-rated sealant is the specified product. Each seal follows the tested detail, and rooms are done in turn.

Do you take on work at healthcare sites like Spire Hospital Portsmouth?

Yes, hospitals are one of the sectors we cover. The estates team’s permit system and infection-control rules come first, and the work is planned around them.

Can weather delay the job?

It can, when the joints are outside. Wet joints and cold, damp or frosty conditions stop the sealant bonding properly, so external work may be moved if conditions aren’t right. Indoors, the weather is rarely a problem.

What if there’s asbestos in the old mastic?

Some older mastics, especially in pre-2000 buildings, can contain asbestos. Before we disturb old sealant in an older building, we ask to see the asbestos register or survey, and work stops until any suspect material has been tested. We don’t remove asbestos-containing materials.

Do you have public liability insurance?

Yes. Our insurance certificate can be sent alongside the quote.

Will your applicators have CSCS cards?

Yes. Our applicators hold CSCS cards.

Do you hold CHAS accreditation?

Yes. We are CHAS accredited, we’re a Constructionline member and we use CSCS-carded applicators.

How the quote is worked out

There’s no standard rate for sealant work, since sites vary so much. What we look at:

  • Specialist products, such as fire-rated or hygienic sealants
  • The total length or number of joints
  • Whether old sealant has to be cut out first
  • How accessible the joints are

Access can matter as much as the joints themselves: easy-to-reach joints are quicker than those that need equipment to get to. Tell us how the joints are reached and call for a quote.

Sending details for a quote

However big the job, these details speed things up:

  • The site address and postcode
  • How the joints are reached, and at what height
  • Whether the building will be occupied during the work
  • Your programme or deadline

The quickest route to a quote is a few photographs and the site postcode. Send them through the quote form, or speak to us on 01277 525 020 or email drawings and photos if you’d rather talk the job through.

Do you need fire stopping in Westbourne?

A common fault is a product that was never fire-rated in the first place: builders’ foam or ordinary silicone used to fill a hole. It may look closed, but it has no tested fire performance in that position, so it has to come out.

Look out for the following:

  • Unsealed joints where partitions meet the slab
  • Snag lists that include open service penetrations
  • Damaged fire seals in risers and voids
  • Builders’ foam or ordinary silicone in compartment walls

For a school such as Westbourne Primary School, penetration sealing fits best at the end of the summer works.

Comparing quotes

  • What level of public liability insurance do they hold?
  • How the existing material will be dealt with
  • What site paperwork they can supply
  • Is the sealant right for the movement and the substrate?

Our contractor checklist

From enquiry to sign-off

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, the manufacturer’s primer is applied where it’s called for, and each bead is tooled to a neat concave finish. Jobs in and around smaller places like Westbourne are typically planned as a single visit, so we ask for photos and rough sizes first. Then the right materials arrive with us.

  1. We ask for the product and detail your designer has specified.
  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. We gun the sealant in to the specified depth around each service and tool it.
  6. We walk the completed areas with you and confirm the records agreed at quote stage.

Preparing the site

  • Warn occupants and staff about the work
  • Send any specification or drawings in advance
  • Arrange parking or a loading space

Quotes

Specifications, drawings and tender packages are welcome with any enquiry, and we will price against exactly what is specified. Smaller jobs need nothing more than photos and a few notes.

Get a price

Advice

Commercial clients in Westbourne

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

Hospitality, education, healthcare, office and retail clients come to us directly as well. The work is planned around how the building runs, so guests, pupils, patients or staff are disturbed as little as possible.

When it isn’t the sealant

Being straight saves everyone time. New sealant won’t cure:

  • Openings that need collars, wraps, batts or boards rather than sealant
  • Gaps in walls that were never built as compartment walls
  • Deciding what a wall or floor needs, which belongs to the designer

If you are not sure, just give us a call on 01277 525 020 or email us and we will give you a straight answer before you book.

Surfaces we seal

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

How the job changes by surface

Small ducts

We seal around ducts only within what the tested detail covers. Dampers and ductwork systems themselves are outside our work.

Plastic pipes

Plastic waste pipes through slabs come up often. Whether sealant alone is acceptable depends entirely on the tested detail, and we’ll never swap a specified collar for sealant.

Accreditations

Trusted. Accredited. Insured.