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

Shalmsford Street fire stopping

Sealant work in Shalmsford Street for main contractors, managing agents and facilities managers: fire-rated and intumescent sealing of service penetrations and linear gaps, with a fixed quote first.

  • Service penetrations left open after M&E works
  • Unsealed joints where partitions meet the slab
  • Penetration schedules that need working through
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Signed off, with 12 months’ guarantee.
Covering the South East & Scotland
Constructionline member
Fully insured: £5m PL

Fire stopping for Shalmsford Street sites

Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.

Fire stopping in Shalmsford Street

On a fit-out or refurbishment, we follow the services contractors floor by floor. To price a package, call the office on 01277 525 020 or email drawings and photos with the schedule or marked-up drawings. Tell us what records you need and we’ll confirm with the quote. If you have openings left by services added after handover and builders’ foam or ordinary silicone in compartment walls, we can help. For commercial sealant work in Shalmsford Street, you deal with one contact from quote to sign-off, for single jobs and planned programmes alike.

In places the size of Shalmsford Street, fire-resisting walls and floors are found in schools, care homes, health centres and mixed-use buildings. Specified fire-rated sealant goes around new services there, built to match the manufacturer’s detail.

What our 12-month guarantee covers is the way we did the job: the preparation, the sealing and the tooling. It doesn’t extend to damage, other trades’ later work or movement the joint was never designed to take.

Where
Shalmsford Street (CT4)
Wider area
Kent
Guarantee
12 months on our workmanship
Quotes
A fixed quote before we start
Telephone
01277 525 020
Page updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

From enquiry to sign-off

Occupied buildings need a little choreography. The work area is signed and kept contained, with routes through the building left open and work section by section so the rest of the building stays in use. For a site in Shalmsford Street, we plan so the whole job is done in one go where possible. Photos with rough sizes let us arrive with everything needed.

  1. First we go through the drawings, schedule or specification for the seals and ask about anything unclear.
  2. Every penetration is compared with its detail: wall or floor type, service, gap size and depth.
  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. Fire-rated or intumescent sealant is gunned in to the specified depth, then tooled.
  6. Openings that need a collar, wrap, batt or other product are flagged to you rather than filled with sealant.

What we need from you

  • Send any specification or drawings in advance
  • Warn occupants and staff about the work
  • Share your working hours and any access restrictions

Quotes

Tell us about the building, the joints and when you need the work done, and we will put a fixed quote together. To get it moving, ring 01277 525 020 or send details through our quote form.

Ask for a quote

Read more

Leave it or put it right?

Inspections and handover checks often pick up fire stopping. Late discoveries can delay handover while openings are reopened and resealed. A failed joint lets water into a building whatever its size. Early resealing avoids the damage that follows a leak.

The work involved drives the cost: stripping out, preparation, sealing, access and phasing. Call for a quote.

Why us?

  • Failed material removed, not covered up
  • One number for every site we cover
  • Our applicators hold CSCS cards
  • Sealing commercial buildings since 2005

Take a look at what affects the cost or how we’re accredited.

For managing agents and facilities managers

Building owners and managing agents use us on sealant work across single buildings or whole portfolios around Shalmsford Street. Several sites can go on one quote, so there’s one set of paperwork to deal with.

FMs need a contractor who is easy to get on site. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we’ll confirm them with the quote.

Signs you need fire stopping in Shalmsford Street

When a seal departs from its tested detail, the evidence no longer covers it. Gaps beyond the tested size, shallow sealant, no backing where it was needed, or products from different systems mixed together are what we find most often.

Typical triggers for a call:

  • Service penetrations left open after M&E works
  • Expanding foam used as fire stopping
  • Open linear gaps along the top of fire-resisting walls
  • Fire-stopping items raised at inspection or handover

In a building such as Church of St Mary, any service penetration through a fire-resisting wall should be sealed to the specified detail.

Comparing quotes

  • Their pre-qualification and accreditations
  • Proof of insurance
  • Whether primer will be used where the manufacturer specifies it
  • Will failed sealant be removed rather than covered?

Questions to ask before you appoint anyone

Service penetrations in Shalmsford Street buildings

In England, Approved Document B covers fire stopping of openings and penetrations. 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. Our part stays the same: the specified product, installed to its tested detail. Shalmsford Street lies roughly 51 miles out from central London. Office refits around the commuter belt bring new cabling through fire-resisting walls.

Office fit-outs on sites such as Stour Valley Business Park (to the north-east of Shalmsford Street) add cabling and pipework through fire-resisting walls, and fire-rated sealant goes in where the specification calls for it. On a hospital site such as Kent and Canterbury Hospital, which lies east of Shalmsford Street, fire-rated sealant goes in where the specification calls for it, with the work planned around the estates team’s permits.

Shalmsford Street is about 3 miles south-west of Canterbury, in Kent. We send applicators to Shalmsford Street for service penetrations, handled exactly as we handle every other area. Our Kent coverage takes in 931 places, large and small. London is covered too, some 51 miles away.

Commercial sites across CT4 are covered. We cover commercial and managed buildings on Old Church Road, Pomfret Road and Summer Piece Grove and the roads nearby. We also cover Chartham (1 mile north), Mystole (1 mile west), Garlinge Green (1 mile south), Chartham Hatch (1 mile north) and Thanington (2 miles north-east). Nearby towns on our patch include Ashford (10 miles south-west), Canterbury (3 miles north-east), Dover (14 miles south-east), Sittingbourne (14 miles north-west), Folkestone (13 miles south-east) and Whitstable (7 miles north).

Near you in Shalmsford Street

In Shalmsford Street, that means premises near The Artichoke Inn and Broadham Down. For rail, the closest station is Chartham station, roughly 0.5 miles north. Nearby you will also find Chilham Castle (2.6 miles west) and Whitefriars Shopping Centre (3.3 miles north-east). The countryside around Shalmsford Street includes Blean Woods RSPB Reserve.

Map of Shalmsford Street © OpenStreetMap contributors

What we can’t put right

Not every problem is a sealant problem, and we are upfront when that’s the case. These need a different solution:

  • Approving the work on behalf of building control
  • Deciding what a wall or floor needs, which belongs to the designer
  • Reviewing a building’s overall fire safety

Not sure which it is? You can speak to us on 01277 525 020 or email drawings and photos and we will tell you honestly before you book.

Joints and surfaces we work on

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

General trades versus a specialist

There’s also the paperwork. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and we’ll confirm the paperwork you need with the quote.

For most general trades, sealant is a sideline. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint, which is what makes a joint last.

Shalmsford Street: questions and answers

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

Yes, holiday working periods are the norm on campus jobs. Any paperwork you need, from RAMS to our insurance certificate and CSCS details, is confirmed with the quote.

Is Shalmsford Street off your patch?

No. Places such as Shalmsford Street are covered as much as the big towns. Our area covers London and the South East counties. We plan jobs in smaller places so return trips are kept to a minimum.

Do you take on multi-site work?

Yes. Several buildings can share a single quote, with one point of contact across South East England, Greater London and Scotland.

Do you need to see the site first?

It depends on the job. Straightforward work can often be priced from photographs and measurements, while larger or less clear jobs get a site visit first.

Do you have public liability insurance?

Yes. Our insurance certificate can be sent alongside the quote.

How long does a typical visit take?

That varies with the scale of the job, but the work usually 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’ll give you a timescale with the quote.

Can you reseal penetrations after our M&E works?

Yes, where there is a specification for those walls and floors. Openings left by new services are among the most common jobs we see and we close them with the specified product.

Accreditations

Trusted. Accredited. Insured.