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

Frinsted fire stopping

Fire-rated and intumescent sealing of service penetrations and linear gaps across Frinsted, carried out by CSCS-carded applicators. Fully insured and CHAS accredited.

  • Seals disturbed by maintenance and left open
  • Service penetrations left open after M&E works
  • Seals that don’t match their tested detail
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Signed off, with 12 months’ guarantee.
London, the South East & Scotland
Constructionline member
Fully insured: £5m PL

Fire stopping across Frinsted

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

Work for main contractors and building owners

Hotels, schools, healthcare sites, offices and retail units book us directly too. We plan around the way the building is used, so guests, pupils, patients or staff are disturbed as little as possible.

Blocks and communal areas make up much of the work for housing associations and agents. We phase the work so people keep access, with each stage agreed with your site contact.

Fire stopping in Frinsted

Where pipes, cables and other services cross a compartment wall or floor, the opening around them has to be closed so fire and smoke can’t move between compartments. Our part is installing fire-rated and intumescent sealant at those openings and along linear gaps, where the specification calls for it. Each seal follows the manufacturer’s tested detail. If you’re dealing with penetration schedules that need working through and hidden openings found during inspections, we can put it right. One point of contact handles commercial sealant work in Frinsted from the first photos to the final walk-round, for single jobs and planned programmes alike.

Barn and farm-building conversions near places like Frinsted often combine new partitions with old walls. A penetration seal only performs as tested if product, substrate, service, gap and depth all match the detail.

Every job we finish is backed by a 12-month workmanship guarantee, wherever the site is. If our installation lets you down in that time, we return and fix it.

Mastic Doctor team members lined up next to their branded vans outside an office building
Where
Frinsted (ME9)
Wider area
Kent
Cover
12 months on every job
Quotes
A fixed quote before we start
Telephone
01277 525 020
Page updated
3 November 2026

Common questions from Frinsted clients

Is Frinsted off your patch?

Not at all. Frinsted is within our area. We work across Greater London and the South East. Send photos and a list of what needs doing, and we will plan the job to need as few trips as possible.

What does the BS 476 change mean for fire-rated sealant in Frinsted?

From 2 September 2029, Approved Document B drops its BS 476 references in favour of BS EN 13501-2 classification, with transitional arrangements. Our part doesn’t change: the specified product, to its tested detail.

How long will the new sealant last?

There’s no fixed lifespan: movement, exposure, cleaning, traffic and the product all play a part. Sealant joints are maintenance items, so inspect them regularly.

Do you have public liability insurance?

Yes. We are fully insured, and the certificate can go with your quote.

Can you follow the specification on our project?

Yes. We follow the specification, along with the manufacturer’s installation guidance.

What will the job cost?

Every job gets its own fixed quote. To get one, call the office on 01277 525 020 or email a schedule or drawings.

Can you fit around our working hours?

Give us your site hours and any access windows in your enquiry, and we will plan around them. You can reach the office between 8am and 5pm, Monday to Friday.

Maintenance after handover

After handover, a little attention goes a long way:

  • Treat an open penetration as a priority repair
  • Foam or ordinary sealant is never a fire-seal repair
  • Get seals inspected before ceilings and boxing close
  • Agree the fire-stopping specification before services go in

New services after handover are a common way fire stopping gets breached. Building it into each contractor’s sign-off keeps the walls intact.

Specify fire stopping early on refits, not as an afterthought. Details can then be picked to suit the actual pipes, cables and ducts, and installation follows the programme.

Fire stopping around Frinsted: what changes locally

Central London is about 37 miles from Frinsted. 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. Its BS 476 references are being withdrawn from 2 September 2029, with BS EN 13501-2 classification taking over, subject to transitional arrangements. Our part stays the same: the specified product, installed to its tested detail.

Campus buildings at universities such as Canterbury Christ Church University, 1.5 miles south-west of Frinsted, see constant changes to data and services, and fire-rated sealant goes in around new penetrations where it is specified. On a site such as Kent Science Park (2.2 miles north-east of Frinsted), every fit-out that runs new services through a compartment wall leaves penetrations to seal with the specified product. For a school such as Milstead and Frinsted Church of England Primary School, penetration sealing fits best at the end of the summer works.

Frinsted is about 4 miles south of Sittingbourne, in Kent. If you’re looking for fire stopping in Frinsted, we can help, as we do across Kent. We work across 931 places in Kent. Sites around London have their own page, roughly 37 miles from Frinsted.

Commercial sites across ME9 are covered for service penetrations. Streets here include The Street, Bottom Pond Road and Dray's Field, and sites on any of them can send details for a fixed quote. Close to Frinsted, our area also takes in Milstead (1 mile north-east), Hollybushes (2 miles east), Bluetown (2 miles east), Wichling (2 miles east) and West Street (2 miles south-east). Bigger towns within reach include Maidstone (8 miles west), Ashford (12 miles south-east), Sittingbourne (4 miles north), Whitstable (15 miles east), Faversham (8 miles east) and Minster (10 miles north-east).

Near you in Frinsted

Around Frinsted, our work takes us to commercial buildings near The Blacksmith's Arms Public House. For rail, the closest station is Harrietsham station, roughly 3 miles south-west of the centre. Nearby you’ll also find Leeds Castle (4 miles south-west) and Laundry Museum (3.8 miles south-west).

Map of Frinsted © OpenStreetMap contributors

Why act early in Frinsted

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. For buildings around smaller places like Frinsted, 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.

Larger quantities, tricky access or phasing all shape the price. Site requirements like inductions and permits play a part as well.

Why us?

  • Health and safety: CHAS accredited
  • Constructionline member for supplier checks
  • Commercial sealant work since 2005
  • Work to your specification and the manufacturer’s guidance

Read our cost guide or our accreditations and insurance.

Site staff or a sealant specialist?

Some joints are best left to specialists: for instance fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. A poor seal in places like these tends to cost more to put right later.

Putting right a botched joint often costs more than sealing it well at the start, because the whole bead must be removed and the faces cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.

Our process

When we get to site, we report to your site contact and complete whatever induction the building runs. Everything around the joints gets protected before any cutting starts, and the work usually takes anything from one day to a planned run of visits, depending on the number of seals and the access. If others near Frinsted need work, visits can be combined. A fixed quote is given before anything starts.

  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. 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

  • Make sure the joints can be reached
  • Send any specification or drawings in advance
  • Tell us what induction or permit system the site runs

Ask for a quote

To get a fixed quote, call the office on 01277 525 020 or email us, telling us the site location and the nature of the job. Our quote form is another easy route.

Ask for a quote

Advice

Quoting for work in Frinsted

Each job is priced on its own details. The things that drive the figure:

  • How much existing material needs removing
  • Working within restricted access windows
  • Travel to remote or island sites
  • The site’s rules and procedures

What a job costs comes down to how many linear metres there are, what has to come out first and the access. Call for a fixed quote once you have the details.

Details that help us quote

It doesn’t need to be a full survey. These details are enough to start:

  • Anything awkward about access or site hours
  • Photos of the joints, close up and from further back
  • The product your specification calls for
  • What the building is and how it’s used

Let us know the site, the scope and your timescale, and we’ll put a fixed quote together. To get it moving, speak to us on 01277 525 020 or email us.

Accreditations

Trusted. Accredited. Insured.