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

Fire stopping in Fawkham Green

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

  • Damaged fire seals in risers and voids
  • Improvised or mixed-product fire seals
  • Fire sealant pulled out of the opening
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
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
12-month guarantee on our workmanship.
London, the South East & Scotland
CHAS accredited
£5m PL insurance

Fire stopping near Fawkham Green

Photos, a specification or a quick description of the joints is enough to start a fixed quote.

Fire stopping for commercial buildings in Fawkham Green

Most of our fire stopping work happens after the building is up. New cable runs, replaced pipework and extra data routes all punch holes in compartment walls. Those on your schedule are closed with the specified product. The enquiries we see most involve unsealed openings around new pipes and cables and open linear gaps along the top of fire-resisting walls, across small duct penetrations where the tested detail allows, joints between fire-resisting walls and floors and service gaps in risers. Whoever orders the work in Fawkham Green, the brief is usually the same: a fixed quote, no surprises on site and a 12-month guarantee behind the result.

For a smaller site near Fawkham Green, we plan to do all the penetrations in one go, with the specification and photographs sent in advance. We install to the specification and the manufacturer’s guidance, leaving design and sign-off with the designer and building control.

We stand by our work: 12 months, guaranteed. That covers our preparation and application.

Location
Fawkham Green (DA3)
Region
Kent
Guarantee
12 months on our workmanship
Quotes
Fixed quote, scope in writing
Phone
01277 525 020
Last updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

Penetration seals near Fawkham Green

Approved Document B is the English guidance that covers fire stopping around 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. We install whatever has been specified, to the product’s tested detail. The area within 2 miles of Fawkham Green holds a number of hotels. A hotel refit often runs new services through compartment walls between bedrooms and corridors, and each opening needs the specified seal.

Hospital estates such as Darent Valley Hospital, 4.9 miles to the north of Fawkham Green, are divided into fire compartments, and any service penetration through them should be sealed to the specified, tested detail. Hotels such as Brands Hatch Hotel, 0.5 miles to the south-west of Fawkham Green, rely on fire-resisting walls between bedrooms and corridors, and refits that add services leave penetrations to seal where fire-rated sealant is specified.

Fawkham Green is about 6 miles south-west of Northfleet, in Kent. We cover Fawkham Green and the rest of Kent, with the same fixed quotes and 12-month guarantee as everywhere else. Fawkham Green is one of 931 places in Kent on our list. For work in that direction, see our London page.

Business premises anywhere in DA3 are within our area. Among the streets we cover are Fawkham Green Road, Brands Hatch Road and Valley Road, and sites on any of them can send details for a fixed quote. Sites close to Fawkham Green are covered too, including Speed Gate (1 mile north-west), West Yoke (1 mile east), Ash (1 mile south-east), West Kingsdown (2 miles south-west) and Maplescombe (2 miles west). Bigger towns within reach include Maidstone (13 miles south-east), Dartford (6 miles north-west), Sevenoaks (7 miles south-west), Gravesend (6 miles north-east), Tonbridge (12 miles south) and Northfleet (6 miles north-east).

Around Fawkham Green

Locally, jobs take us to sites close to Longfield Academy and The Rising Sun pub. The closest station to Fawkham Green is Longfield station, about 2.3 miles north-east of the centre. Other landmarks nearby include Eynsford Castle (2.9 miles west) and Darent Valley Hospital (4.9 miles north).

Map of Fawkham Green © OpenStreetMap contributors

From enquiry to sign-off

When we get to site, we report to your site contact and complete whatever induction the building runs. Floors, finishes and fittings next to the joints are covered before anything is cut or cleaned, with the work itself usually taking anything from one day to a planned run of visits, depending on the number of seals and the access. Smaller jobs around Fawkham Green can be grouped with others nearby. A fixed quote is given before anything starts.

  1. We read the specification, drawings or penetration schedule you send and raise any questions before we price.
  2. On site, each opening is checked against the tested detail it is meant to follow.
  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. We apply the specified sealant to the depth and around the services as the detail shows.
  6. If an opening needs something other than sealant, we tell you instead of improvising.

Before we start on site

  • Share your working hours and any access restrictions
  • Arrange parking or a loading space
  • Move anything stored against the joints

Get a fixed quote

A good quote starts with a clear picture: the joints involved, quantities, access and the product called for. Share whatever details you have and we will fill any gaps with a visit.

Ask for a quote

Read more

What sets the cost

Before we quote, we look at:

  • The product specified
  • Travel to remote or island sites
  • The size and state of each joint
  • Any access equipment needed

A quote for service penetrations depends on quantities, condition and access. Call for a quote.

What we need to price the job

The more we know, the firmer the quote. Helpful details to send:

  • Approximate linear metres or a joint schedule
  • Your programme or deadline
  • What the building is and how it’s used
  • Anything awkward about access or site hours

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.

Do you need fire stopping in Fawkham Green?

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:

  • Hidden openings found during inspections
  • Head-of-wall gaps with no fire seal
  • Unsealed openings around new pipes and cables
  • Builders’ foam or ordinary silicone in compartment walls

For a school such as New Ash Green Primary School, penetration sealing fits best at the end of the summer works.

Before you book anyone

  • Do they follow the manufacturer’s priming guidance?
  • How the existing material will be dealt with
  • How they handle RAMS and site documents
  • Is depth set with backing rod, or bond-breaker tape in shallow joints?

Questions to ask before you appoint anyone

Aftercare for building managers

Once the work is signed off, these steps help:

  • Put resealing into every M&E and fit-out package
  • Arrange inspection before areas are covered up
  • Check with the data sheet before painting over fire sealant
  • Ask the designer to confirm details early on refits

Add risers, plant rooms and ceiling voids to routine fire-stopping checks. Look for cracks, unsealed new cables and gaps that have been enlarged, and report them promptly.

The simplest way to keep compartment walls intact is to plan fire stopping into every job that crosses them. Then the seal goes in while the area is open.

Honest limits

We seal joints; we don’t mend everything behind them. On its own, sealant can’t deal with:

  • Deciding what a wall or floor needs, which belongs to the designer
  • Large openings beyond what any sealant detail covers
  • Reviewing a building’s overall fire safety

If in doubt, call 01277 525 020 or send photos by email and we’ll say what we think.

Joints and surfaces we work on

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

Fawkham Green: questions and answers

Does your area include sites such as Heaver Farm Trading Estate, near Fawkham Green?

Yes, sites like Heaver Farm Trading Estate are within our area, along with the rest of Fawkham Green. Send details of the unit and the work through our quote form for a quick quote.

How does the removal of BS 476 from Approved Document B affect fire-rated sealing in Fawkham Green?

References to BS 476 classes are being removed from Approved Document B from 2 September 2029, after which BS EN 13501-2 classification is the route, subject to transitional arrangements. Whichever applies, we install the specified product to its tested detail; the specification is for the designer to set.

Do you work in Fawkham Green?

Yes. We cover Fawkham Green and the rest of Kent. To discuss a job, call the office on 01277 525 020 or send details through our quote form.

Is the work guaranteed?

Yes. Our workmanship is backed for 12 months on every job.

Can one quote cover more than one building?

Yes. A group of buildings can go on one quote, and you deal with one contact throughout.

How much does the work cost?

Each job is quoted on its own details. For yours, ring 01277 525 020 or email us.

Does the weather affect the work?

Outside, yes. Sealant needs a dry joint and a temperature within the product’s range, so frost, rain or cold mornings can delay outside work. Inside work is seldom held up.

For managing agents and facilities managers

If you look after buildings for someone else, clear figures and clear communication matter. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative, plus a 12-month guarantee.

Whether you’re a managing agent, a property factor or an owner’s representative: send the details, accept a fixed quote, and we carry out and guarantee the work. We can agree access arrangements and keyholder contacts beforehand.

Accreditations

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