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

Fire-rated sealing and fire stopping in Scragged Oak, Kent

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

  • Unsealed joints where partitions meet the slab
  • Non-fire-rated filler around services
  • Fire-rated sealant that has cracked or shrunk back
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
12-month guarantee on our workmanship.
South East, London & Scotland
CHAS & Constructionline
£5m PL insurance

Fire stopping in Scragged Oak

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

Should maintenance staff do it?

General builders and handymen seal joints, but it isn’t their main trade. 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.

A short, simple internal joint is often within reach of a maintenance team. The usual problems come from preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.

Fire stopping for commercial buildings in Scragged Oak

Fire-rated sealant suits many small service penetrations: copper and steel pipes, cables and some small ducts where the tested detail allows. Other openings need collars, wraps, batts, pillows or boards. If the detail calls for something other than sealant, we say so rather than force sealant into it. The enquiries we see most involve service penetrations left open after M&E works and fire sealant pulled out of the opening, across small duct penetrations where the tested detail allows, service gaps in risers and linear gaps at wall heads. Facilities teams, main contractors and managing agents in Scragged Oak tend to want the same three things: a clear scope, tidy work and joints that don’t fail again.

A job near Scragged Oak is normally 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.

We stand by our work: 12 months, guaranteed. That covers our preparation and application, and we come back if anything isn’t right.

Where
Scragged Oak (ME14)
Region
Kent
Cover
12 months on our workmanship
Price
Fixed quote, scope in writing
Telephone
01277 525 020
Updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

Why it’s worth doing now in Scragged Oak

Inspections and handover checks often pick up fire stopping. Late discoveries can delay handover while openings are reopened and resealed, so earlier action pays back. Converted and older buildings near places like Scragged Oak tend to move, and aged sealant cracks. A sealant with the right movement capability, correctly sized, lasts far better.

There’s no price list, since every building and every scope is different. For a fixed figure, call for a quote.

Why choose Mastic Doctor in Scragged Oak

  • Fixed quotes based on photographs, drawings or a visit
  • Commercial sealant work since 2005
  • Work to your specification and the manufacturer’s guidance
  • One phone line for London, the South East and Scotland

Read our cost guide and our accreditations.

When it isn’t the sealant

Before quoting, we check that sealant is the right answer. It isn’t the answer for:

  • Fire risk assessments, a job for a competent assessor
  • Signing off or certifying a building’s fire stopping
  • Large openings beyond what any sealant detail covers

If in doubt, call the office on 01277 525 020 or email us and we will say what we think before you book.

What we seal

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

Common questions from Scragged Oak clients

Is Scragged Oak too far out for you?

No. Small places get the same service as large ones. We cover Greater London and the counties of the South East. Where we can, we group nearby jobs to make the most of each trip.

Do you take on work at healthcare sites like Spire Alexandra Hospital?

Yes. We work in healthcare settings as well as offices and schools. Before anything starts, the estates team agrees permits, inductions and infection-control measures with us.

What do BS EN 1366-3 and BS EN 13501-2 mean?

In short, BS EN 1366-3 and 1366-4 are the fire tests and BS EN 13501-2 is how results are classified. An EI 60 seal kept its integrity and insulation for 60 minutes as tested and the installation has to match the test.

Do you seal on top of existing sealant?

No. We cut the old material out and clean the joint back before sealing, because fresh silicone will not bond with aged silicone.

Will you write the fire-stopping specification?

No, that isn’t our role. Once you have a specification, we can price and install the sealant elements of it and point out anything needing another product.

Does the weather affect the work?

It can, for external work. Wet joints and cold, damp or frosty conditions stop the sealant bonding properly, so we watch the forecast and rearrange outside work if we have to. Internal work is far less affected.

Do you seal openings left by new services?

Yes, provided a specification covers them. New services after M&E works often breach existing seals and we close them with the specified product.

Common problems we fix in Scragged Oak

Mixing products or improvising a detail breaks the link with the test evidence. Gaps beyond the tested size, shallow sealant, no backing where it was needed, or products from different systems mixed together are the usual culprits.

Things that usually lead to an enquiry:

  • Fire sealant pulled out of the opening
  • Snag lists that include open service penetrations
  • Expanding foam used as fire stopping
  • Openings found when ceilings come down for a refit

For a unit at a site such as Hempstead Valley Shopping Centre (1.6 miles north-west of Scragged Oak), any new service through a fire-resisting wall should be sealed to the tested detail.

Questions to ask before you book

  • The named product and why it was chosen
  • Will CSCS-carded applicators be on site?
  • Are they CHAS accredited or on Constructionline?
  • How the joint faces will be prepared and primed

Questions to ask before you appoint anyone

Fire stopping in Scragged Oak: the local picture

Scragged Oak lies roughly 32 miles out from central London. Offices around the capital are refitted often, and the cabling that follows can breach fire-resisting walls, and the gaps need sealing with the specified product. Fire stopping of openings and penetrations in England falls under Approved Document B. 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. Either way, we install the specified product to its tested detail.

Wherever services are added at a hospital such as Spire Alexandra Hospital (to the west of Scragged Oak) the compartment line has to be made good with the specified product. Older community buildings such as Church of St Peter that have been rewired or given new heating can have service gaps through walls worth checking against the specification.

Scragged Oak is about 3 miles south-east of Chatham, in Kent. If you are looking for fire stopping in Scragged Oak, we can help. We work across 931 places in Kent. We also cover London, some 32 miles away.

Postcode districts covered here: ME14. If your building is just outside Scragged Oak, we cover Lower Cox Street (1 mile south-east), Kemsley Street (1 mile north), Bredhurst (1 mile north-west), Dunn Street (1 mile north-west) and Lidsing (1 mile north-west). Bigger towns within reach include Maidstone (5 miles south-west), Sittingbourne (6 miles east), Gravesend (12 miles north-west), Faversham (13 miles east), Northfleet (13 miles north-west) and Minster (11 miles north-east).

Near you in Scragged Oak

Recent enquiries here include premises near Levan Strice and the streets around them. For rail, the closest station is Bearsted station, about 3.2 miles south. Nearby you’ll also find Allington Castle (3.8 miles south-west) and KIMS hospital (2.8 miles south-west). Green spaces nearby include Detling Hill and Burham Down.

Map of Scragged Oak © OpenStreetMap contributors

What sets the cost

There’s no standard rate for sealant work, because every site is different. What we take into account:

  • Specialist products, such as fire-rated or hygienic sealants
  • Removal of failed or old sealant
  • Travel to remote or island sites
  • Site requirements such as inductions and permits

The price depends on the quantity of joints, how much old material needs removing and the access. Call for a quote once you have the details.

Before you send an enquiry

The more we know, the firmer the quote. When you get in touch, include:

  • The postcode of the building
  • Your programme or deadline
  • Anything awkward about access or site hours
  • Rough lengths or quantities, or drawings if you have them

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’ll arrange a site visit if anything is unclear.

How a job runs

Diagnose, treat, sign off: that’s the shape of every visit. We inspect the joints and confirm what’s in scope, then the work is carried out to the specified product and detail, and we finish with a walk round so the work can be signed off. For a building around Scragged Oak, tell us how to find it and who will meet us. Add it to your enquiry and we’ll build it into the plan.

  1. We start with your penetration schedule, drawings or specification.
  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.
  5. The specified backing and sealant go in to depth and are finished neatly.
  6. We tell you about openings that need a different product.

What we need from you

  • Point out parking and an unloading spot
  • Tell staff and tenants when we will be in
  • For older buildings, check the asbestos register before work

Getting a fixed quote

A handful of photos and a postcode is the fastest way to a quote. Upload them with the quote form, or give us a call on 01277 525 020 or use the quote form to discuss it first.

Get a quick quote

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