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

Steeple fire stopping

Fire-rated and intumescent sealing of service penetrations and linear gaps in Steeple and across Essex. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.

  • Fire stopping installed outside its tested range
  • Fire sealant pulled out of the opening
  • Seals disturbed by maintenance and left open
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
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
12-month guarantee on our workmanship.
Covering the South East & Scotland
CHAS & Constructionline
£5m PL insurance

Fire stopping across Steeple

Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.

Commercial clients in Steeple

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

If you look after buildings for someone else, clear figures and clear communication matter. You get a fixed quote, an agreed scope and a walk round at the end, plus a 12-month guarantee.

How we handle fire stopping in Steeple

We should be clear about what we do and don’t do. Deciding the specification sits with the designer, the fire engineer and building control; sign-off sits with them too. What we bring is careful installation of the specified sealant, to the maker’s guidance in Steeple and nearby. If you have improvised or mixed-product fire seals and penetration schedules that need working through, we can help, on service gaps in risers, cable penetrations and small duct penetrations where the tested detail allows alike. A specialist sealant contractor works differently from a general builder: on jobs in Steeple, preparation and product choice get the time they need.

Rural conversions around Steeple can put new fire-resisting partitions inside older structures. A penetration seal only performs as tested if product, substrate, service, gap and depth all match the detail.

The 12-month guarantee is for workmanship rather than wear and tear. How long a sealant joint lasts depends on movement, exposure, cleaning and use, so we spell out the cover before we begin.

The Mastic Doctor team beside their liveried vans in front of an office building
Place
Steeple (CM0)
Region
Essex
Guarantee
A 12-month guarantee
Quote
Fixed quote, scope in writing
Telephone
01277 525 020
Last updated
3 November 2026

Fire stopping around Steeple: what changes locally

Steeple lies roughly 41 miles out from central London. Tenant changes on commuter-belt business parks mean regular fit-outs, and new services through compartment walls. 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.

Older community buildings such as Church of St Lawrence and All Saints that have been rewired or given new heating can have service gaps through walls worth checking against the specification.

Steeple is about 6 miles south-east of Maldon, in Essex. Anywhere in CM0, it works the same way: send details, get a fixed quote, we seal, and the work is guaranteed. Steeple is one of 644 places in Essex on our list for service penetrations. For work in that direction, see our London page.

We cover the CM0 postcode districts for service penetrations. Streets here include The Street, Garden Fields and Batt's Road, and sites on any of them can send details for a fixed quote. Nearby places we also cover include Southminster (2 miles south-east), Asheldham (3 miles south-east), Dengie (3 miles east), Stoneyhills (3 miles south) and Tillingham (3 miles east) for service penetrations. Nearby towns on our patch include Colchester (14 miles north), Chelmsford (14 miles west), Maldon (6 miles north-west), Canvey Island (15 miles south-west), Rayleigh (11 miles south-west) and Witham (10 miles north-west).

What’s near Steeple

The closest station to Steeple is Southminster station, about 2.6 miles south-east. Open spaces near Steeple include Northey Island.

Map of Steeple © OpenStreetMap contributors

What the job involves on each surface

Plastic pipes

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

Metal pipes

Copper and steel pipes are a common service penetration for fire-rated sealant. The tested detail sets the pipe size range, gap, depth and whether insulation can stay on and we confirm each before sealing.

When something else is needed

A few problems need another trade or a different fix, and we say so rather than covering them up:

  • Openings that need collars, wraps, batts or boards rather than sealant
  • Gaps in walls that were never built as compartment walls
  • Designing or specifying fire stopping, which sits with the designer or fire engineer

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

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

Our process

Tell us your site hours and access windows and we will plan around them. On the day, the work area is kept contained and tidy, and your contact hears from us before we move to the next area. Smaller jobs around Steeple can be grouped with others nearby. A fixed quote is given before anything 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. Old or wrong materials are cut out.
  4. Where the detail needs backing, it goes in at the stated depth.
  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.

Before we start on site

  • Send any specification or drawings in advance
  • Agree which areas must stay open
  • Flag any permit to work we will need

Get a fixed quote

Every job follows the same four steps: send details, get a quote, we seal, guaranteed. The first step is to ring 01277 525 020 or email a schedule or drawings with what you know.

Ask for a quote

Read more

FAQs: Steeple

Is Steeple too small for you to travel to?

No. Places such as Steeple are covered as much as the big towns. London and every South East county are within our area. Send photographs and a list of what needs doing, and we’ll plan the job to need as few trips as possible.

Will you plan work around the academic year at somewhere like University of Essex?

Yes. We plan campus work around teaching, exams and residence turnarounds. Let us know which documents your site asks for, and we will confirm them alongside the quote.

Is your workmanship covered by a guarantee?

Yes. Our workmanship is backed for 12 months.

Will you quote for a small job?

Single areas, one-off repairs and whole buildings are all quoted the same way: details, then a fixed price, then sealing, then a 12-month guarantee.

What if there’s asbestos in the old mastic?

Managing asbestos is the dutyholder’s responsibility, so we will ask for the register before work on an older building. If anything suspect turns up, we stop until it’s tested.

What do you charge?

Each job is quoted on its own details. For yours, speak to us on 01277 525 020 or send photos by email with a description of the work.

Can you seal any opening with fire-rated sealant?

No. Each fire-rated sealant is tested for particular services, gap sizes and substrates. If an opening falls outside, it needs another solution, as set out by the designer.

Common problems we fix in Steeple

Plenty of openings were simply never closed, often hidden above suspended ceilings or behind boxing. They come to light during inspections, refits or when another trade lifts a tile.

Clients normally get in touch after noticing something like this:

  • Damaged fire seals in risers and voids
  • Seals that don’t match their tested detail
  • Builders’ foam or ordinary silicone in compartment walls
  • Unsealed joints where partitions meet the slab

At a university such as University of Essex (1.9 miles north-east of Steeple), labs, lecture blocks and residences are re-serviced often, so penetration seals are best checked after M&E work.

What your quote should include

  • Will CSCS-carded applicators be on site?
  • Is the sealant right for the movement and the substrate?
  • Their pre-qualification and accreditations
  • How they’ll work around occupants

Choosing a commercial sealant contractor

Doing it in-house

General builders and handymen seal joints, but it isn’t their main trade. A specialist prepares properly, controls joint depth and picks a product with the right movement class.

A short, simple internal joint is often within reach of a maintenance team. The usual problems come from preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.

Accreditations

Trusted. Accredited. Insured.