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

Fire-rated sealing and fire stopping in Green Street, Essex

Need fire stopping in Green Street? It’s simple: send details, get a quote, we seal, guaranteed.

  • Openings left by services added after handover
  • Builders’ foam or ordinary silicone in compartment walls
  • Open linear gaps along the top of fire-resisting walls
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Signed off, with 12 months’ guarantee.
Covering the South East & Scotland
CHAS accredited
Fully insured: £5m PL

Fire stopping near Green Street

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

When something else is needed

A proper diagnosis includes knowing what sealant can’t do. You will hear from us if the cause turns out to be one of these:

  • Signing off or certifying a building’s fire stopping
  • Designing or specifying fire stopping, which sits with the designer or fire engineer
  • Construction that lacks the fire resistance the seal relies on

If in doubt, call the office on 01277 525 020 or email the details over and we will say what we think.

What we seal

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

How we handle fire stopping in Green Street

No fire sealant works on its own: its test evidence covers one product in one kind of wall or floor, with set services, gaps, depths and backing. We match each opening to that detail before any sealant goes in, and we say so if it doesn’t fit. Site teams most often ask us about snag lists that include open service penetrations and hidden openings found during inspections, across cable penetrations, linear gaps at wall heads and service gaps in risers. One point of contact handles commercial sealant work in Green Street from the first photos to the final walk-round, for single jobs and planned programmes alike.

Rural conversions around Green Street 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.

Our workmanship is guaranteed for 12 months, in Green Street as everywhere else we work. If our installation lets you down in that time, we return and fix it.

The Mastic Doctor team beside their liveried vans in front of an office building
Where
Green Street (CM4)
Wider area
Essex
Guarantee
12 months on our workmanship
Price
Quoted before any work starts
Telephone
01277 525 020
Page updated
3 November 2026

From enquiry to sign-off

We begin with a short walk round with whoever looks after the building, to confirm the scope, the order of work and any areas we must keep clear. Then we strip out anything that has failed, prepare every joint and seal it. Rural sites near Green Street may need directions, gate codes or a contact on site. Add it to your enquiry and we will build it into the plan.

  1. We read the specification, drawings or penetration schedule you send.
  2. On site, each opening is checked against the tested detail it is meant to follow.
  3. Unsuitable fillers and loose debris are taken out of each opening.
  4. We fit the backing the detail asks for, to the stated depth.
  5. We apply the specified sealant to the depth and around the services as the detail shows.
  6. If an opening needs something other than sealant, we tell you instead of improvising.

Getting the site ready

  • Tell us your opening times and when work is allowed
  • Tell us which areas need to stay in use
  • Share the asbestos register for older buildings

Quotes

Every quote starts with the facts: what’s there, how much of it, how we reach it and what’s specified. Send what you have, and we will arrange a site visit if anything is unclear.

Ask for a quote

Read more

Fire-rated sealing for Green Street buildings

At about 23 miles from central London, Green Street is within reach of the capital. Business park offices in the commuter belt are refitted as tenants change, and each fit-out adds services through compartment walls, and the gaps need sealing with the specified product. In England, Approved Document B covers fire stopping of openings and penetrations. References to the older BS 476 classes are being removed from it from 2 September 2029, after which the European classification, BS EN 13501-2, is the route, subject to transitional arrangements. Our part stays the same: the specified product, installed to its tested detail.

Holiday works at schools like Ingatestone Infant School often leave service openings to seal before pupils return. Theatres, wards and plant rooms at sites like Brentwood Community Hospital, 3.8 miles to the south-west of Green Street, all have compartment walls crossed by services. In a building such as Church of St Mary the Virgin, any service penetration through a fire-resisting wall should be sealed to the specified detail.

Green Street is about 4 miles north-east of Brentwood, in Essex. If you are looking for fire stopping in Green Street, we can help, as we do across Essex. We work across 644 places in Essex, large and small. Our London page has more on work in that area (23 miles or so).

Postcode districts covered here: CM4 for service penetrations. If your building is just outside Green Street, we cover Beggar Hill (1 mile north), Fryerning (1 mile east), Swallows Cross (1 mile south-west), Mill Green (1 mile north-east) and Ingatestone (1 mile east). Nearby towns on our patch include Chelmsford (7 miles north-east), Basildon (8 miles south-east), Harlow (12 miles north-west), Brentwood (4 miles south-west), Maldon (15 miles east) and Canvey Island (14 miles south-east).

Landmarks near Green Street

We work on buildings around Anglo European School, among other places. The closest station to Green Street is Ingatestone station, roughly 1.5 miles east. Other landmarks nearby include Brentwood Community Hospital (3.8 miles south-west). Not far away are Norsey Wood.

Map of Green Street © OpenStreetMap contributors

What affects the price in Green Street

Your fixed quote is built from the real scope. It allows for:

  • Any access equipment needed
  • How much there is to seal
  • Distance, for remote addresses
  • The product specified

A quote for service penetrations depends on how many there are, their condition and the access. Ask us for a fixed quote.

Sending details for a quote

A few photos plus some basic facts will normally do. Please tell us:

  • How the joints are reached, and at what height
  • Your programme or deadline
  • What the building is and how it’s used
  • The product your specification calls for

Tell us about the building, the joints and when you need the work done, and we’ll put a fixed quote together. The easiest way is to ring 01277 525 020 or send photos by email.

Different surfaces, different methods

Risers and ceiling voids

Service risers and the voids above ceilings are where openings collect. Access to these areas is planned with you in advance along with any permits your site needs.

Plastic pipes

Plastic waste pipes through slabs come up often. Whether sealant alone is acceptable depends entirely on the tested detail.

Leave it or put it right?

Fire stopping is a regular point raised at inspections and handover. Finding unsealed or improvised openings late can hold up a programme. Halls, stores and units around places like Green Street may not be checked every day, which gives a failed joint time to do damage. Resealing early avoids that.

The specified product makes a difference, and so does the preparation, such as cutting out, priming or new backing rod. Access, phasing and site requirements come into it too.

Why clients in Green Street choose us

  • Our applicators hold CSCS cards
  • Fully insured
  • Constructionline member for supplier checks
  • Health and safety: CHAS accredited

Read our cost guide or how we’re accredited.

Your questions answered

Could you schedule work at a campus like Writtle University College Cow Watering Campus for the vacation?

Yes, holiday working periods are the norm on campus jobs. Tell us which site documents you need, such as RAMS, our insurance certificate or CSCS details, and they’re confirmed with the quote.

Is Green Street off your patch?

Not at all: smaller places are covered as well as towns. Our area covers London and the South East counties. Where we can, we group nearby jobs to make the most of each trip.

Is any job too small?

We quote for single jobs as well as large packages and programmes. Send details for a fixed quote.

Is your workmanship covered by a guarantee?

Yes. The 12-month guarantee covers our preparation and application, though not damage or work by other trades.

Who decides which product is used?

A specification, where there is one, decides it. If there isn’t one, it comes down to the joint: how much it moves, what it bonds to and whether it’s wet, trafficked or fire-rated.

How do we ask for a quote?

There are four steps: send details, get a quote, we seal, guaranteed. Step one needs little more than photos and a postcode.

How much does the work cost?

There isn’t a price list, as every site differs. Send photos or drawings and we will price it at a fixed figure.

For managing agents and facilities managers

Main contractors use us as their sealant subcontractor on new-build and refurbishment projects. Programme, specification and site rules come first, and our applicators hold CSCS cards.

Agents, factors and owners’ representatives all follow the same route: send details, get a fixed quote, we seal, guaranteed. We can agree access arrangements and keyholder contacts beforehand.

Accreditations

Trusted. Accredited. Insured.