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

Fire stopping in Caterham

Looking for fire stopping in Caterham? It’s simple: send details, get a quote, we seal, guaranteed.

  • Service penetrations left open after M&E works
  • Unsealed penetrations discovered above suspended ceilings
  • Non-fire-rated filler around services
1
Send details
Send the specification, photos or a marked-up plan.
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
Signed off, with 12 months’ guarantee.
South East, London & Scotland
CHAS & Constructionline
£5m public liability

Fire stopping for businesses in Caterham

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

Fire stopping in Caterham, done properly

For main contractors, our fire stopping package slots in after the M&E trades have finished in an area. 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 will confirm with the quote. If you’re dealing with unsealed joints where partitions meet the slab and non-fire-rated filler around services, we can help, on joints between fire-resisting walls and floors, small duct penetrations where the tested detail allows and pipe penetrations alike. Most enquiries from Caterham start with one failed joint and grow into a wider look at the building: we check the joints around it and give you an honest view of what needs doing now and what can wait.

Older buildings in towns like Caterham have often been rewired and replumbed several times, and each change can leave unsealed holes in walls and floors. Intumescent or fire-rated sealant is used wherever the specification asks for it, built up exactly as tested.

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

Location
Caterham (CR3)
Region
Surrey
Guarantee
12 months on our workmanship
Price
Fixed quote, scope in writing
Phone
01277 525 020
Page updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

Site staff or a sealant specialist?

Paperwork matters too. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and our CSCS-carded applicators are used to working under those rules.

The visible bead is only part of the job. Backing rod, primer where specified and a joint designed to move with the building are where general trades tend to cut corners.

What happens if it’s left?

An improvised seal can look finished while offering no tested performance. Correcting it means cutting it out and starting again with the specified product, and doing it once, properly, is cheaper. In a town such as Caterham, a lot of buildings are older and have been altered over time, so joints between old and new are often the first to go. Resealing them early protects the building behind.

What a job costs comes down to how many linear metres there are, how much old material needs removing and the access. Call for a quote when you are ready.

What you get with us

  • Work carried out by CSCS-carded applicators
  • A Constructionline member, so easy to vet
  • A fixed quote before work starts
  • Products installed to the manufacturer’s instructions

Take a look at our cost guide and our accreditations.

Work for main contractors and building owners

When you manage a building on behalf of an owner, you need clear quotes and clear reporting. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative.

Planned maintenance programmes are welcome: resealing failed joints building by building, on a schedule that suits your budget. Caterham can form part of a wider programme.

Common questions from Caterham clients

Can you work around term dates at a campus such as Coulsdon Sixth Form College?

Yes. Tell us the term dates, vacation periods and access windows, and we’ll plan the work around them. We are CHAS accredited and a Constructionline member, and paperwork such as RAMS is confirmed with the quote.

Will you work in a care home in Caterham without moving residents out?

Yes, with the manager deciding the order and timing of rooms. Noise and disruption are kept to a minimum.

Do you work in Scotland as well as England?

Our area runs from Greater London and the South East to every part of Scotland. In Scotland, clause 2.1.14 of the non-domestic Technical Handbook says service penetrations should keep at least the fire resistance of the wall or floor, with proprietary products tested for the end use.

How do you choose the sealant?

Where there’s a specification, we use the product it names. If not, we choose for the movement, the surfaces and the conditions, in line with the manufacturer’s guidance.

Can you quote from photos?

That depends on the size and complexity of the job. Simple work can often be priced from photos, while larger or less clear jobs get a site visit first.

Do you work to architects’ specifications?

Yes. The specification and the manufacturer’s installation guidance are what we work to.

How much does the work cost?

It 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.

What the job involves on each surface

Cables and cable bundles

New data and power cables are the most common breach we see. Openings around new cables are resealed to the detail.

Risers and ceiling voids

Openings above suspended ceilings are easy to miss. We follow your schedule area by area.

Honest limits

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

  • Deciding what a wall or floor needs, which belongs to the designer
  • Fire risk assessments, a job for a competent assessor
  • Issuing fire ratings or certificates for seals

Not sure which it is? You can give us a call on 01277 525 020 or send details through our quote form and we’ll tell you honestly before you book.

Joints and surfaces we work on

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

From enquiry to sign-off

Site rules come first: sign-in, induction and whatever permit system the building uses. With the paperwork done, we take the joints in the sequence agreed with you. If you have more than one building in Caterham, they can often be done on the same visit, with one quote covering them. Tell us when the building is open and we will plan to suit.

  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 first.
  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

  • For older buildings, check the asbestos register before work
  • Confirm the product named in the specification
  • Point out any areas we must not close

Request a quote

Need a figure for a tender or a budget? Send the scope and any drawings, and we’ll return a fixed quote that you can work with. If you have questions first, call 01277 525 020 or email us.

Ask for a quote

Related advice

Penetration seals near Caterham

At about 15 miles from central London, Caterham is within reach of the capital. Tenant changes on commuter-belt business parks mean regular fit-outs, and new services through compartment walls; the gaps need the specified seal. Approved Document B is the English guidance that covers fire stopping around openings and penetrations. Its BS 476 references are being withdrawn from 2 September 2029, with BS EN 13501-2 classification taking over, subject to transitional arrangements. We install whatever has been specified, to the product’s tested detail.

For a building such as Sacred Heart Church, new heating or data runs are the usual reason penetrations need sealing. Workshops and IT rooms at colleges like Coulsdon Sixth Form College (1.8 miles north-west of Caterham) are re-serviced often, leaving penetrations to seal. At a healthcare site like North Downs Hospital (1 mile south-east of Caterham), new services through compartment walls are a constant, and each needs the specified seal.

Caterham is about 11 miles south-west of Orpington, in Surrey. If you are looking for fire stopping in Caterham, we can help, as we do across Surrey. Across Surrey, 379 places are covered, including Caterham. For work in that direction, see our London page, about 15 miles away.

We take on service penetrations across the CR3 postcode area, whatever the building. Buildings on High Street, London Road and Park Road are within our area. You’ll find Caterham on or near the B2030 and B2031, so getting applicators and materials to site is simple. Just outside Caterham, we also work in Woldingham Garden Village (2 miles east), Tyler's Green (2 miles south-east), Woldingham (3 miles east), Godstone (3 miles south) and Church Town (3 miles south-east). Bigger towns within reach include Epsom (8 miles north-west), Horley (8 miles south-west), Redhill (5 miles south-west), Ewell (8 miles north-west), Reigate (6 miles south-west) and Walton-on-Thames (15 miles north-west).

Local landmarks in Caterham

Around Caterham, our work takes us to commercial buildings near Sunnydown School, The King And Queen Public House and de Stafford School and the streets around them. The nearest railway station is Caterham station, about 0.7 miles south-east. Well-known places in the area include Bletchingley Castle (3.4 miles south) and East Surrey Museum (0.6 miles south-east). The countryside around Caterham includes South London Downs National Nature Reserve and Mercers Lake.

Map of Caterham © OpenStreetMap contributors
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