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

Arkesden fire stopping

We carry out fire-rated and intumescent sealing of service penetrations and linear gaps in Arkesden. Send details for a fixed quote.

  • Openings left by services added after handover
  • Snag lists that include open service penetrations
  • Seals that don’t match their tested detail
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.
South East, London & Scotland
CHAS accredited
Fully insured: £5m PL

Fire stopping for businesses in Arkesden

Photos, a specification or a quick description of the joints is enough to start a fixed quote.

Fire stopping in Arkesden, done properly

A lot of fire-stopping work comes after M&E installation, a refit or a tenant fit-out. Each new cable, pipe or data route cut through a fire-resisting wall leaves an opening behind. Those on your schedule are closed with the specified product. We work on cable penetrations, joints between fire-resisting walls and floors and small duct penetrations where the tested detail allows, and the failures we’re asked to look at most are openings found when ceilings come down for a refit and head-of-wall gaps with no fire seal. Whether you call it commercial sealant work, mastic application or joint sealing, the work in Arkesden is the same: the right product in a properly prepared joint.

A job near Arkesden is usually planned around one visit, with the specification and photographs sent in advance. Design and sign-off belong to the designer or building control; we install what’s specified.

Every job ends the same way: guaranteed. Our workmanship is backed for 12 months, and we explain exactly what that covers when we quote.

Place
Arkesden (CB11)
Wider area
Essex
Cover
A 12-month guarantee
Quotes
A fixed quote before we start
Call
01277 525 020
Last updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

When something else is needed

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

  • Fire risk assessments, a job for a competent assessor
  • Large openings beyond what any sealant detail covers
  • Gaps in walls that were never built as compartment walls

Not sure which it is? You can ring 01277 525 020 or email a schedule or drawings and we’ll tell you honestly.

Surfaces we seal

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

Your questions answered

Do you take on work at healthcare sites like Saffron Walden Community Hospital?

Yes. Healthcare sites are among the places we work. The estates team’s permit system and infection-control rules come first, and the work is planned around them.

Is Arkesden too far out for you?

No. Places such as Arkesden are covered as much as the big towns. Our area covers London and the South East counties. Send photographs and a list of what needs doing, and we will plan the job to need as few trips as possible.

When is resealing likely to be due?

It depends on movement, UV and weather, cleaning, traffic and the product. Treat them as maintenance items and inspect them regularly.

Can you quote from photos?

Many jobs can be quoted from photos, drawings or a joint schedule. If the job needs a look first, we’ll arrange a visit.

Is it fine to apply new sealant on top of old?

No. Sealing over old material is one of the classic causes of early joint failure, so everything comes out first.

How many days will you need on site?

It depends on the scope, though a typical visit usually takes longer where risers, ceiling voids or occupied floors have to be worked through in sequence. Larger or phased jobs take longer, and we will give you a timescale with the quote.

How do I request a quote?

It works in four steps: send details, get a quote, we seal, guaranteed. Step one needs little more than photographs and a postcode.

What the job involves on each surface

Cables and cable bundles

Cable penetrations are frequently sealed with fire-rated sealant where the detail allows. Bundle size, cable type and the space between cables all matter and we work within those limits.

Plastic pipes

Plastic pipes soften and collapse in a fire. Some intumescent sealants are tested on smaller plastic pipes. We check the pipe material and diameter against the detail before we start.

How a job runs

We bring the products specified for the job, along with primers and backing rod. Any old material is cut back to clean, sound faces, the manufacturer’s primer is applied where it’s called for, and the sealant is tooled off neatly. If others near Arkesden need work, visits can be combined. A fixed quote is given before anything starts.

  1. We ask for the product and detail your designer has specified.
  2. We sort the openings by the detail each one needs.
  3. Improvised fillers and failed sealant are removed.
  4. Mineral wool or other backing is fitted where required.
  5. Fire-rated or intumescent sealant goes in around the services and is tooled off.
  6. Completed areas are checked with you, with the records agreed when we quoted.

What we need from you

  • Share the asbestos register for older buildings
  • Flag any permit to work we will need
  • Warn occupants and staff about the work

Request a quote

We quote a fixed sum against the scope you give us, so you know the figure before anyone is on site. To start the process, give us a call on 01277 525 020 or email a schedule or drawings.

Ask for a quote

Advice

When to call us in Arkesden

Damage plays a part too. Maintenance work can knock a seal, cut it back for an extra cable or remove it with an old pipe.

Site and facilities staff are often the first to spot these:

  • Penetration schedules that need working through
  • Seals disturbed by maintenance and left open
  • Unsealed joints where partitions meet the slab
  • Hidden openings found during inspections

On a hospital site such as Saffron Walden Community Hospital, 4.9 miles to the north-east of Arkesden, fire-rated sealant goes in where the specification calls for it, with the work planned around the estates team’s permits.

Questions to ask before you book

  • What site paperwork they can supply
  • How they’ll work around occupants
  • Are they CHAS accredited or on Constructionline?
  • Their approach to joint depth and backing

Choosing a commercial sealant contractor

Why it’s worth doing now in Arkesden

Leave a penetration open and smoke and fire can cross into the next compartment far earlier than intended. While the openings can be reached, sealing them is normally straightforward. Left until ceilings are closed or a tenant moves in, the same work costs more access and more disruption. Converted and older buildings near places like Arkesden tend to move, and aged sealant cracks. A sealant with the right movement capability, correctly sized, lasts far better.

The price depends on the quantity of joints, how much old material needs removing and how the joints are reached. Call for a fixed quote when you are ready.

What you get with us

  • CHAS accredited contractor
  • Work carried out by CSCS-carded applicators
  • Constructionline member
  • Commercial sealant work since 2005

See our cost guide and our accreditations and insurance.

Where services cross fire walls in Arkesden

Arkesden lies roughly 35 miles out from central London. Office refits around the commuter belt bring new cabling through fire-resisting walls. Fire stopping of openings and penetrations in England falls under Approved Document B. 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. We install whatever has been specified, to the product’s tested detail.

Holiday works at schools like Joyce Frankland Academy often leave service openings to seal before pupils return. Offices at parks like Funstons Commercial Centre (to the south of Arkesden) are re-cabled with each new tenant, and compartment walls need sealing afterwards to the tested detail.

Arkesden is about 4 miles south-west of Saffron Walden, in Essex. Commercial clients in Arkesden use us for work on service penetrations, as part of our coverage of Essex. Our Essex coverage takes in 644 places. There’s a separate page for London, roughly 35 miles from Arkesden.

Commercial sites across CB11 are covered. Buildings on Clatterbury Lane, Wicken Road and Hampit Road are within our area. We also cover Hill Green (1 mile south), Wicken Bonhunt (1 mile south-east), Clavering (2 miles south-west), Starling's Green (2 miles south-west) and Langley (2 miles west) for service penetrations. Further afield, our area takes in Harlow (15 miles south), Saffron Walden (4 miles north-east), Great Dunmow (12 miles south-east), Stansted Mountfitchet (6 miles south), Newhall (15 miles south) and Elsenham (6 miles south-east).

Near you in Arkesden

Around Arkesden, our work takes us to commercial buildings near Axe And Compasses Inn and the streets around them. Arkesden’s nearest station is Audley End station, roughly 2.3 miles north-east. Nearby you will also find Saffron Walden Community Hospital (4.9 miles north-east) and The Warren (4 miles west).

Map of Arkesden © OpenStreetMap contributors

Work for main contractors and building owners

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

We take on planned maintenance as well as one-off repairs: resealing failed joints building by building, on a schedule that suits your budget. Arkesden can form part of a wider programme across Essex.

Accreditations

Trusted. Accredited. Insured.