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

Fire-rated sealing and fire stopping in Swallows Cross, Essex

Planning work on a service penetration in Swallows Cross? We assess it, carry out the work and guarantee our workmanship for 12 months.

  • Fire-stopping items raised at inspection or handover
  • Head-of-wall gaps with no fire seal
  • Unsealed openings around new pipes and cables
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
12-month guarantee on our workmanship.
Covering the South East & Scotland
Constructionline member
£5m public liability

Fire stopping for Swallows Cross sites

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

Fire stopping in Swallows Cross

Facilities managers in Swallows Cross often find open service penetrations when ceilings come down for other work. Where the walls and floors already have a fire-stopping specification, we can work to it using the product and detail it sets out. Where there isn’t one, the designer or fire engineer needs to set one first. We work on service gaps in risers, joints between fire-resisting walls and floors and pipe penetrations, and what we’re called in for most is fire seals cut back for extra cables and never reinstated and unsealed joints where partitions meet the slab. Whether you call it commercial sealant work, mastic application or joint sealing, in Swallows Cross it comes down to the same thing: the right product in a properly prepared joint.

A job near Swallows Cross is normally planned around one visit, 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.

Guaranteed is the last step of every job. You get a 12-month guarantee on our workmanship, and we explain exactly what that covers when we quote.

Place
Swallows Cross (CM15)
Region
Essex
Guarantee
12 months on our workmanship
Quotes
Fixed quote, scope in writing
Call
01277 525 020
Updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

Your questions answered

Can you take on a job at a hospital such as Brentwood Community Hospital?

Yes. We work in healthcare settings as well as offices and schools. Before anything starts, the estates team agrees permits, inductions and infection-control measures with us.

What happens to BS 476 references for fire stopping in Swallows Cross?

Approved Document B loses its BS 476 references from 2 September 2029, and BS EN 13501-2 becomes 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.

Are your applicators CSCS-carded?

Yes. Our applicators hold CSCS cards, which many sites require.

Will you come and look before quoting?

Many jobs can be quoted from photos, drawings or a joint schedule. Where they aren’t, we arrange a site visit.

How long does a typical visit take?

That varies with the scale of the job, but the work typically takes a single visit for a short list of penetrations, or a phased programme for a whole building. Larger or phased jobs take longer, and we will give you a timescale with the quote.

Is the work guaranteed?

Yes. Our workmanship is backed for 12 months.

What do you charge?

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

Maintenance after handover

Problems stay small when the joints are checked regularly. In particular:

  • Don’t let anyone top up a fire seal with the wrong product
  • Ask which product is in place before decorating
  • Have penetrations checked while they can still be seen
  • Record which product was used where

Never top up a fire seal with foam, ordinary silicone or filler. Repairs need the same product and detail as the original.

Regular walk-rounds of service areas are worth the time. A cracked or disturbed seal found early is a small job compared with dozens found at once.

How a job runs

We schedule the visit to fit the site hours and access windows you give us. On the day, the work area is kept contained and tidy, and your contact hears from us before we move to the next area. Jobs in and around smaller places like Swallows Cross are normally planned as a single visit, so we ask for photos and rough sizes first. Then the right materials arrive with us.

  1. The specification and schedule come first, so we know which details apply.
  2. Access, permits and the order of areas are agreed with the site team.
  3. Each opening is checked for wall or floor type, service, gap and depth.
  4. Foam, ordinary sealant and debris come out so the seal starts clean.
  5. Backing and fire-rated sealant are installed to the detail and tooled.
  6. Anything outside the detail is reported to you rather than sealed.

Before we start on site

  • Send your site hours and access windows
  • Flag any permit to work we will need
  • Have the specification and drawings to hand

Get a fixed quote

To get a fixed quote, speak to us on 01277 525 020 or email drawings and photos with the site address and an outline of the work. You can also send details through our quote form.

Get a price

Related advice

Why it’s worth doing now in Swallows Cross

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. Left until ceilings are closed or a tenant moves in, the same work costs more access and more disruption. For buildings around smaller places like Swallows Cross, water damage can go unnoticed for longer, especially where a building isn’t used daily, so a failed joint can leak for a while before anyone sees it. Resealing early avoids that.

The specified product makes a difference, and so does the preparation. Access, phasing and site rules also count.

What you get with us

  • CHAS accredited
  • 12-month guarantee on workmanship
  • One number for every site we cover
  • Joints cleaned back to sound surfaces

Read how commercial sealant jobs are priced or our accreditations.

What sets the cost

Sealant work doesn’t have a standard rate, since sites vary so much. What we look at:

  • The site’s rules and procedures
  • Quantities, in metres or numbers
  • Which sealant the job calls for
  • How much existing material needs removing

The price depends on the quantity of joints, what has to come out first and how the joints are reached. Call for a fixed quote when you’re ready.

Sending details for a quote

Diagnosis starts before we arrive. Let us know:

  • What the building is and how it’s used
  • The product your specification calls for
  • Photos of the joints, close up and from further back
  • Asbestos survey details if the building is older

Send details, get a quote, we seal, guaranteed: that’s how every job runs. The first step is to speak to us on 01277 525 020 or send details through our quote form with what you know.

Fire stopping in Swallows Cross: the local picture

Swallows Cross lies roughly 22 miles out from central London. Business park offices in the commuter belt are refitted as tenants change, and each fit-out adds services through compartment walls. For England, the fire stopping of penetrations is dealt with in Approved Document B. From 2 September 2029, BS 476 references are being taken out of Approved Document B, leaving BS EN 13501-2 classification as the route, subject to the Government’s transitional arrangements. Either way, we install the specified product to its tested detail.

Holiday works at schools like Shenfield High School often leave service openings to seal before pupils return. For a hospital such as Brentwood Community Hospital, 2.9 miles to the south of Swallows Cross, penetration sealing is typically phased ward by ward, with infection-control rules agreed first.

Swallows Cross is about 3 miles north-east of Brentwood, in Essex. If you’re looking for fire stopping in Swallows Cross, we can help, as we do across Essex. Our Essex coverage takes in 644 places, large and small. Our London page has more on work in that area.

Postcode districts covered here: CM15 for service penetrations. We cover commercial and managed buildings on Thoby Lane and Wyatt's Green Road. Sites close to Swallows Cross are covered too, including Wyatt's Green (1 mile north-west), Green Street (1 mile north-east), Mountnessing (1 mile south-east), Doddinghurst (1 mile west) and Beggar Hill (2 miles north-east). A short drive away, we cover Chelmsford (8 miles north-east), Basildon (8 miles south-east), Harlow (12 miles north-west), Brentwood (3 miles south-west), Canvey Island (15 miles south-east) and Billericay (5 miles south-east).

Local landmarks in Swallows Cross

The closest station to Swallows Cross is Ingatestone station, about 2.3 miles east. Well-known places in the area include Brentwood Community Hospital (2.9 miles south). The countryside around Swallows Cross includes Thorndon Park.

Map of Swallows Cross © OpenStreetMap contributors

How the job changes by surface

Plastic pipes

Waste and drainage pipes through floors are a frequent case. Whether sealant alone is acceptable depends entirely on the tested detail, and we’ll never swap a specified collar for sealant.

Cables and cable bundles

Data cabling added after handover is a regular cause of open service penetrations. Openings around new cables are resealed to the detail, and any bundle too large for sealant alone is flagged.

When something else is needed

Sealant solves a lot, but not everything, and we’d rather tell you before you spend money. These need a different solution:

  • Issuing fire ratings or certificates for seals
  • Designing or specifying fire stopping, which sits with the designer or fire engineer
  • Reviewing a building’s overall fire safety

If you are not sure, just ring 01277 525 020 or send details through our quote form and we will give you a straight answer.

Where we work in Swallows Cross

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

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