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

Fire stopping in Mackerel's Common

Commercial sealant work in Mackerel's Common for contractors, FMs and building owners: fire-rated and intumescent sealing of service penetrations and linear gaps, with a fixed quote first.

  • Penetration schedules that need working through
  • Non-fire-rated filler around services
  • Unsealed penetrations discovered above suspended ceilings
1
Send details
Drawings, photos, a joint schedule or a site 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
Fully insured: £5m PL

Fire stopping near Mackerel's Common

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

Fire stopping in Mackerel's Common, done properly

No fire sealant works on its own: the evidence covers a specific product, wall or floor type, service, gap, depth and backing. We match each opening to that detail before any sealant goes in, and raise it with you if it falls outside. Most enquiries involve non-fire-rated filler around services and hidden openings found during inspections, across pipe penetrations, small duct penetrations where the tested detail allows and cable penetrations. Whoever orders the work in Mackerel's Common, the brief is typically the same: a fixed quote, no surprises on site and a 12-month guarantee behind the result.

For a smaller site near Mackerel's Common, we plan to do all the penetrations in one go, so send the specification and photographs first. Design and sign-off belong to the designer or building control; we install what’s specified.

Whoever the client is, the cover is the same: a 12-month guarantee on our workmanship. Faults in the structure, damage and other trades’ work fall outside it, and we say so plainly.

The Mastic Doctor team beside their liveried vans in front of an office building
Where
Mackerel's Common (RH14)
Region
West Sussex
Guarantee
A 12-month guarantee
Quotes
Quoted before any work starts
Call
01277 525 020
Page updated
3 November 2026

How the quote is worked out

We price every job individually. The things that drive the figure:

  • Distance, for remote addresses
  • Joint width, depth and condition
  • Removal of failed or old sealant
  • Induction, permit and paperwork requirements

The product called for affects the cost, and so does the preparation. Access, phasing and site rules also count.

Before you send an enquiry

To price the job accurately, we need to understand the site. Send us:

  • The postcode of the building
  • Whether the building will be occupied during the work
  • Any specification or named product
  • A wide shot and a close-up of the area

Specifications, drawings and tender packages are welcome with any enquiry, and we will price the work to it. For smaller jobs, photos and a description will do.

Different surfaces, different methods

Small ducts

Ducts are only sealed with sealant where the detail allows it. Dampers and ductwork systems themselves are outside our work.

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, and any bundle too large for sealant alone is flagged.

Leave it or put it right?

An unsealed opening affects more than fire safety: smoke, noise and draughts pass through them every day. Sealing them to the specified detail deals with the fire risk first. For buildings around smaller places like Mackerel's Common, water damage can go unnoticed for longer, especially where a building isn’t used daily, which gives a failed joint time to do damage. Renewing joints in good time avoids the problem.

No two sites price the same: the joint sizes, the specified product, access and working hours each have a bearing. A fixed quote follows once we understand the job.

Why appoint us

  • Constructionline member
  • Work to your specification and the manufacturer’s guidance
  • Over 20 years of commercial sealing
  • Fully insured, including public liability cover

See how commercial sealant jobs are priced or our accreditations and insurance.

Common questions from Mackerel's Common clients

How does the removal of BS 476 from Approved Document B affect fire-rated sealing in Mackerel's Common?

Approved Document B loses its BS 476 references from 2 September 2029, and BS EN 13501-2 becomes the route, subject to transitional arrangements. The designer or fire engineer sets the specification, and we install the product to the manufacturer’s tested detail.

Is Mackerel's Common off your patch?

Not at all. Mackerel's Common is within our area. London and every South East county are within our area. We plan jobs in smaller places so return trips are kept to a minimum.

What happens if old sealant might contain asbestos?

Managing asbestos is the dutyholder’s responsibility, so for older buildings we ask for the asbestos register first. Work pauses if suspect material is found, until it has been tested.

Who decides which product is used?

A specification, where there is one, decides it. If there isn’t one, it comes down to the joint: how much it moves, what it bonds to and whether it’s wet, trafficked or fire-rated.

How do we ask for 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.

Does the weather affect the work?

It can, when the joints are outside. Wet joints and cold, damp or frosty conditions stop the sealant bonding properly, so external work may be moved if conditions aren’t right. Indoors, the weather is rarely a problem.

Can you work to our specification?

Yes. Send it with your enquiry, and we will price the work to it, flagging anything that needs clarifying.

Looking after the joints

Problems stay small when the joints are checked regularly. In particular:

  • File the specified details where the next contractor can find them
  • Check with the data sheet before painting over fire sealant
  • Have penetrations checked while they can still be seen
  • Check risers and ceiling voids after each round of works

Once the seals are in, tell other trades they exist and must not be disturbed. If a seal has to be opened for a new service, it should be reinstated to the same detail using the same product.

Ask every contractor who works in risers or voids to report openings they create. Small habits like this stop openings building up.

General trades versus a specialist

Putting right a botched joint often costs more than sealing it well at the start, since all of it has to come out and the faces be cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.

Site maintenance staff can often handle a short internal joint. The usual problems come from preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.

Fire stopping in Mackerel's Common: the local picture

Central London is about 37 miles from Mackerel's Common. Tenant changes on commuter-belt business parks mean regular fit-outs, and new services through compartment walls, and the gaps need sealing with the specified product. Approved Document B is the English guidance that covers fire stopping around openings and penetrations. 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.

Buildings near Mackerel's Common get the fire-rated product that’s specified, installed to its tested detail. Older community buildings such as The Parish Church of St John the Baptist that have been rewired or given new heating can have service gaps through walls worth checking against the specification.

Mackerel's Common is about 10 miles west of Horsham, in West Sussex. We cover Mackerel's Common, with the same fixed quotes and 12-month guarantee as everywhere else. Mackerel's Common is one of 373 places in West Sussex on our list. Sites around Brighton have their own page, roughly 23 miles from Mackerel's Common.

Business premises anywhere in RH14 are within our area. Sites close to Mackerel's Common are covered too, including Kirdford (1 mile south), Plaistow (2 miles north), Ifold (2 miles north), Balls Cross (2 miles south-west) and Wisborough Green (2 miles south-east). Further afield, our area takes in Horsham (10 miles east), Broadfield (15 miles east), Storrington (9 miles south-east), Billingshurst (5 miles east), Bewbush (15 miles east) and Angmering (15 miles south).

Local landmarks in Mackerel's Common

For rail, the closest station is Billingshurst station, roughly 4.8 miles south-east. Not far away are The Mens and Shillinglee Lake.

Map of Mackerel's Common © OpenStreetMap contributors

From enquiry to sign-off

At the end of each section, we remove the tape, clean down and inspect every joint, ready for your sign-off. Where the sealant needs time to cure before use, we tell you and sign the area. If others near Mackerel's Common need work, visits can be combined, which keeps travel down. A fixed quote is given before anything starts.

  1. First we confirm the product and tested details named in the specification.
  2. We sort the openings by the detail each one needs.
  3. Improvised fillers and failed sealant are removed.
  4. Where the detail needs backing, it goes in at the stated depth.
  5. We gun the sealant in to the specified depth around each service and tool it.
  6. We walk the completed areas with you and confirm the records agreed at quote stage.

What we need from you

  • Have the specification and drawings to hand
  • Tell us what induction or permit system the site runs
  • Tell us your opening times and when work is allowed

Getting a fixed quote

Tell us about the building, the joints and when you need the work done, and we’ll put a fixed quote together. To get it moving, phone 01277 525 020 or email a schedule or drawings.

Ask for a quote

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Accreditations

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