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

Chattenden fire stopping

Fire-rated and intumescent sealing of service penetrations and linear gaps throughout Chattenden and nearby, by CSCS-carded applicators. Fully insured and CHAS accredited.

  • Service penetrations left open after M&E works
  • Fire-stopping items raised at inspection or handover
  • Head-of-wall gaps with no fire seal
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
12-month guarantee on our workmanship.
Covering the South East & Scotland
CHAS accredited
£5m PL insurance

Fire stopping in Chattenden

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

Fire stopping for commercial buildings in Chattenden

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, and they are easy to forget. We close the openings listed on your schedule, using the specified sealant and detail. We work on pipe penetrations, service gaps in risers and joints between fire-resisting walls and floors, and the usual reasons a site gets in touch are fire stopping installed outside its tested range and unsealed openings around new pipes and cables. Searching for sealant specialists in Chattenden? We’ve been sealing commercial buildings since 2005, with CSCS-carded applicators.

Around smaller places like Chattenden, penetration seals come up in schools, halls, pubs with rooms, care homes and farm buildings used as offices. If sealant is what the specification names, we install it around the services exactly as the maker’s detail sets out.

Guaranteed is the last step of every job. Our workmanship is backed for 12 months, and the quote explains what it covers.

The Mastic Doctor team beside their liveried vans in front of an office building
Location
Chattenden (ME3)
Region
Medway
Guarantee
12 months on every job
Price
Quoted before any work starts
Call
01277 525 020
Last updated
3 November 2026

Commercial clients in Chattenden

Housing associations and managing agents often need work done across blocks and communal areas. We phase the work so people keep access, with each stage agreed with your site contact.

Whether you’re a managing agent, a property factor or an owner’s representative: send details, get a fixed quote, we seal, guaranteed. We can agree access arrangements and keyholder contacts beforehand.

Fire stopping in Chattenden: the local picture

Chattenden lies roughly 28 miles out from central London. Business park offices in the commuter belt are refitted as tenants change, and each fit-out adds services through compartment walls. Fire stopping of openings and penetrations in England falls under Approved Document B. From 2 September 2029, BS 476 references are being taken out of Approved Document B, leaving BS EN 13501-2 classification as the route, subject to the Government’s transitional arrangements. We install whatever has been specified, to the product’s tested detail.

Industrial units on estates such as Pier Road Industrial Estate (1.9 miles south-east of Chattenden) often separate offices from warehouse space with fire-resisting walls, and new services through them need the specified seal. Shop fits in centres such as Strood Retail Park, 2.4 miles south-west of Chattenden, can bring new services through fire-resisting walls between units, which then need the specified seal.

Chattenden is about 2 miles north-east of Rochester, in Medway. Commercial clients in Chattenden can call on us for service penetrations, as part of our coverage of Medway. Chattenden is one of 54 places in Medway on our list for service penetrations. We also cover London, around 28 miles from Chattenden.

Anyone looking for fire stopping in ME3 gets the same process as the rest of our area: details, then a fixed price, then sealing and a 12-month guarantee. If your site is on Songbird Crescent, Sparrow Drive and Main Road or close by, we can quote for service penetrations. Sites close to Chattenden are covered too, including Lower Upnor (1 mile south), Upper Upnor (1 mile south), Wainscott (1 mile south-west), Hoo St Werburgh (1 mile east) and Cooling Street (2 miles north-west). A short drive away, we cover Gillingham (4 miles south-east), Chatham (4 miles south), Rainham (5 miles south-east), Strood (3 miles south-west), Luton (3 miles south) and Park Wood (6 miles south-east).

Near you in Chattenden

Recent enquiries here include premises near The Pier pub, The Hundred of Hoo Academy and Lower Lines Park and the streets around them. For rail, the closest station is Strood station, roughly 2.1 miles south-west of the centre. A little further out are Pentagon Shopping Centre (2.5 miles south) and Upnor Castle (0.9 miles south). For a walk, there’s Gad's Hill and Rede Common.

Map of Chattenden © OpenStreetMap contributors

Doing it in-house

A short, simple internal joint is often within reach of a maintenance team. Where it goes wrong is preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.

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.

When it isn’t the sealant

Some faults sit outside our scope, and we point that out rather than sealing over them:

  • Approving the work on behalf of building control
  • Designing or specifying fire stopping, which sits with the designer or fire engineer
  • Reviewing a building’s overall fire safety

Not sure which it is? You can give us a call on 01277 525 020 or send photos by email and we will tell you honestly before you book.

Joints and surfaces we work on

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

FAQs: Chattenden

Can work at a site such as University of Greenwich - Medway fit around teaching?

Yes. Tell us the term dates, vacation periods and access windows, and we will plan the work around them. Any paperwork you need, from RAMS to our insurance certificate and CSCS details, is confirmed with the quote.

Do you cover business parks and estates near Chattenden, such as Pier Road Industrial Estate?

Yes. Our area takes in Chattenden and its surroundings, with estates and business parks such as Pier Road Industrial Estate included. Send details of the unit and the work through our quote form for a quick quote.

Do you design or specify fire stopping?

No. Deciding what is needed sits with the designer, fire engineer and building control. Our role is fitting the specified fire-rated sealant, following the maker’s tested details.

Do you work in Chattenden?

Yes. Chattenden is in our area and the rest of Medway, within our coverage of Greater London, South East England and Scotland. For a quote, ring 01277 525 020 or use the quote form.

Is BS 476 being phased out?

In England, references to the older BS 476 national classes are being removed from Approved Document B from 2 September 2029, with transitional arrangements set by the Government. After that, the European classification under BS EN 13501-2 is the route. Your designer will choose products with the right evidence.

What’s the quickest route to a quote?

The quote form is the simplest route, though you can also give us a call on 01277 525 020 or use the quote form. Include photos or drawings if you have them.

How much does the work cost?

That depends on the job: the volume of work, the access, the specified product and how it’s phased. Call for a quote and we’ll price it properly.

Signs you need fire stopping in Chattenden

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 what we find most often.

If one of these sounds familiar, it’s time for a closer look:

  • Service penetrations left open after M&E works
  • Head-of-wall gaps with no fire seal
  • Fire stopping installed outside its tested range
  • Penetration schedules that need working through

Colleges such as MidKent College Gillingham Campus (to the south of Chattenden) add IT and services as courses change, and each new penetration through a fire-resisting wall needs sealing with the specified product.

Questions to ask before you book

  • Their public liability cover
  • How the existing material will be dealt with
  • Their plan for phasing and protecting the area
  • How they handle RAMS and site documents

Questions to ask before you appoint anyone

After the work

Sealant joints are maintenance items, and how long they last depends on how they’re treated. We suggest:

  • Flag new cables with no seal around them
  • Include service cupboards in routine inspections
  • File the specified details where the next contractor can find them
  • Make fire stopping part of every scope that crosses a fire-resisting wall

New services after handover are a common way fire stopping gets breached. A short check at the end of each job saves a long hunt later.

Keep a register of where seals are and what they are made of. It tells the next contractor exactly what to reinstate, which saves guesswork.

From enquiry to sign-off

We schedule the visit to fit the site hours and access windows you give us. While we’re working, the area stays contained and tidy, and your contact hears from us before we move to the next area. For work around Chattenden, we aim to finish in one visit, so we ask for photographs and rough sizes first. That way the right products come on the day.

  1. We ask for the product and detail your designer has specified.
  2. Openings are measured and grouped by detail.
  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. We walk the completed areas with you and confirm the records agreed at quote stage.

Preparing the site

  • Point out parking and an unloading spot
  • Tell staff and tenants when we will be in
  • Have the specification and drawings to hand

Quotes

To get a fixed quote, speak to us on 01277 525 020 or send photos by email with the site address and an outline of the work. You can also send details through our quote form.

Get a price

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