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

Fire Stopping in Breeds

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

  • Hidden openings found during inspections
  • Fire-stopping items raised at inspection or handover
  • Fire sealant pulled out of the opening
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
Covering the South East & Scotland
CHAS accredited
Fully insured: £5m PL

Fire stopping for Breeds sites

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

Surface by surface

Metal pipes

Copper and steel pipes are a common service penetration for fire-rated sealant. Pipe diameter, annular gap, sealant depth and any pipe insulation all have to match the detail, so we check each one.

Small ducts

Ducts are only sealed with sealant where the detail allows it. The ductwork, its supports and any dampers are for the ductwork contractor.

How we handle fire stopping in Breeds

For main contractors, our fire stopping package slots in after the M&E trades have finished in an area. We work from your penetration schedule or marked-up drawings. Tell us what records you need and we’ll confirm with the quote. The enquiries we see most involve open linear gaps along the top of fire-resisting walls and snag lists that include open service penetrations, on pipe penetrations, small duct penetrations where the tested detail allows and joints between fire-resisting walls and floors. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: on jobs in Breeds, preparation and product choice get the time they need.

Rural conversions around Breeds can put new fire-resisting partitions inside older structures. Where a pipe or cable passes through a fire-resisting wall, the seal must match the tested detail: product, substrate, gap and depth.

A 12-month guarantee applies to all our work in Essex. Should something we installed fail, call the office on 01277 525 020 or send photos by email and we will come back to it.

Where
Breeds (CM3)
Region
Essex
Cover
12 months on our workmanship
Quotes
Fixed quote, scope in writing
Telephone
01277 525 020
Last updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

Questions about Breeds

Is Breeds too far out for you?

Not at all. Breeds is within our area. We work across Greater London and the South East. Where we can, we group nearby jobs to make the most of each trip.

What happens to BS 476 references for fire stopping in Breeds?

From 2 September 2029, Approved Document B drops its BS 476 references in favour of BS EN 13501-2 classification, with transitional arrangements. Our part doesn’t change: the specified product, to its tested detail.

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, so we will confirm the curing time on the day.

Who decides which product is used?

Where there’s a specification, we use the product it names. If not, we choose for the movement, the surfaces and the conditions, in line with the manufacturer’s guidance.

Do you offer coloured sealant?

It depends on the product. Some ranges are wide, others limited, so we will confirm the colours available for the specified product with the quote.

How long does a job like this take?

It depends on the scope, but the work normally takes anything from one day to a planned run of visits, depending on the number of seals and the access. For bigger or phased jobs, we’ll set out a timescale with the quote.

Will you just go over the old sealant?

No. Failed sealant is removed and the faces cleaned back to sound, dry material first, because fresh silicone will not bond with aged silicone.

Diagnose, treat, sign off

Site rules come first: signing in, inductions and any permit to work. With the paperwork done, we take the joints in the sequence agreed with you. Rural sites near Breeds may need directions, gate codes or a contact on site. Add it to your enquiry and we will build it into the plan.

  1. The specification and schedule come first, so we know which details apply.
  2. We plan the sequence of floors, risers and voids with you.
  3. Each opening is checked for wall or floor type, service, gap and depth.
  4. Unsuitable material is removed and the opening cleaned first.
  5. The specified backing and sealant go in to depth and are finished neatly.
  6. Anything outside the detail is reported to you rather than sealed.

Getting the site ready

  • Send any specification or drawings in advance
  • Tell us what induction or permit system the site runs
  • Arrange parking or a loading space

Quotes

A good quote starts with a clear picture: what’s there, how much of it, how we reach it and what’s specified. Share whatever details you have and we’ll fill any gaps with a visit.

Get a quick quote

Advice

What we can’t put right

We seal joints; we don’t mend everything behind them. Sealant alone won’t deal with:

  • Designing or specifying fire stopping, which sits with the designer or fire engineer
  • Reviewing a building’s overall fire safety
  • Openings that need collars, wraps, batts or boards rather than sealant

If you’re not sure, just ring 01277 525 020 or email the details over and we will give you a straight answer before you book.

Surfaces we seal

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

What happens if it’s left?

Inspections and handover checks often pick up fire stopping. Finding unsealed or improvised openings late can hold up a programme. For buildings around smaller places like Breeds, water damage can go unnoticed for longer, especially where a building isn’t used daily, which gives a failed joint time to do damage. Resealing early avoids that.

The work involved drives the cost: stripping out, preparation, sealing, access and phasing. Call for a fixed quote and we’ll explain how it’s made up.

Why us?

  • A Constructionline member, so easy to vet
  • One number for every site we cover
  • Old sealant cut out, never sealed over
  • Public liability insurance in place

Read how commercial sealant jobs are priced or our accreditations and insurance.

For managing agents and facilities managers

Agents, factors and owners’ representatives all follow the same route: send the details, accept a fixed quote, and we carry out and guarantee the work. We can agree access arrangements and keyholder contacts beforehand.

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

Where services cross fire walls in Breeds

Approved Document B is the English guidance that covers fire stopping around openings and penetrations. Its BS 476 references are being withdrawn from 2 September 2029, with BS EN 13501-2 classification taking over, subject to transitional arrangements. We install whatever has been specified, to the product’s tested detail. Breeds is about 31 miles from central London. Business park offices in the commuter belt are refitted as tenants change, and each fit-out adds services through compartment walls; the gaps need the specified seal.

On a hospital site such as Broomfield Hospital, 1.1 miles to the south-east of Breeds, fire-rated sealant goes in where the specification calls for it, with the work planned around the estates team’s permits. At a university such as Anglia Ruskin University, 3.4 miles south of Breeds, labs, lecture blocks and residences are re-serviced often, so penetration seals are best checked after M&E work. Holiday works at schools like Chelmer Valley High School often leave service openings to seal before pupils return.

Breeds is about 4 miles north of Chelmsford, in Essex. Any commercial site in Breeds is covered, whether it’s a single job or part of a planned programme. Breeds is one of 644 places in Essex on our list. Our London page has more on work in that area.

If you need fire stopping in CM3, the process matches everywhere else we work: details, then a fixed price, then sealing and a 12-month guarantee. We cover commercial and managed buildings on Cherry Garden Road, South Street and Duffries Close. If your building is just outside Breeds, we cover Great Waltham (1 mile north-east), Minnow End (1 mile east), Little Waltham (1 mile east), Broomfield (1 mile south-east) and Chignall Smealy (2 miles south-west). Further afield, our area takes in Chelmsford (4 miles south), Basildon (15 miles south), Braintree (8 miles north-east), Harlow (14 miles west), Brentwood (13 miles south-west) and Maldon (11 miles south-east).

What’s near Breeds

Locally, jobs take us to sites close to The Beehive pub, among other places. The nearest railway station is Beaulieu Park station, about 3.6 miles south-east. Well-known places in the area include Broomfield Hospital (1.2 miles south-east). Not far away are Little Waltham Meadows.

Map of Breeds © OpenStreetMap contributors

Cost factors for service penetrations

To price the job, we consider:

  • How much there is to seal
  • Specialist products, such as fire-rated or hygienic sealants
  • Induction, permit and paperwork requirements
  • Removal of failed or old sealant

What a job costs comes down to the quantity of joints, how much old material needs removing and the access. Call for a quote once you have the details.

Sending details for a quote

We can often quote from photographs and a few details. Please tell us:

  • Asbestos survey details if the building is older
  • Clear photos of the problem areas
  • Any dates the work must fit around
  • The site address and postcode

Every job follows the same four steps: send details, get a quote, we seal, guaranteed. To take the first step, call the office on 01277 525 020 or use the quote form.

Accreditations

Trusted. Accredited. Insured.