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

Fire Stopping in Lenham

Fire stopping in Lenham, backed by over 20 years in commercial sealing. Fully insured and CHAS accredited.

  • Builders’ foam or ordinary silicone in compartment walls
  • Seals disturbed by maintenance and left open
  • Unsealed joints where partitions meet the slab
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Signed off, with 12 months’ guarantee.
London, the South East & Scotland
Constructionline member
£5m public liability

Fire stopping for businesses in Lenham

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 Lenham, done properly

For main contractors, our fire stopping package slots in after the M&E trades have finished in an area. We work from your penetration schedule or marked-up drawings alongside the manufacturer’s details. Tell us what records you need and we will confirm with the quote. If you have seals that don’t match their tested detail and unsealed openings around new pipes and cables, we can put it right, whatever the surface. For commercial sealant work in Lenham, you deal with one contact from quote to sign-off, whether it’s one building or several.

Around Lenham, penetration and linear seals tend to be one-building jobs. With the specification and photos of the gaps, we can give a fixed quote and bring the right products.

Work we carry out comes with a 12-month guarantee. If an installation problem shows up, speak to us on 01277 525 020 or email drawings and photos and we will arrange a return visit.

Location
Lenham (ME17)
Region
Kent
Guarantee
12 months on every job
Quote
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

Honest limits

Honesty saves time and money. Fresh joints won’t solve:

  • Approving the work on behalf of building control
  • Plastic pipes whose detail calls for a collar or wrap
  • Fire risk assessments, a job for a competent assessor

If in doubt, call 01277 525 020 or email a schedule or drawings and we will say what we think before you book.

Where we work in Lenham

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

Different surfaces, different methods

Metal pipes

Metal pipes conduct heat, so their details often call for extra measures along the pipe, and the tested detail may ask for insulation beyond the wall. If the detail needs something beyond sealant, we tell you.

Risers and ceiling voids

Service risers and the voids above ceilings are where openings collect. Access to these areas is planned with you in advance.

Leave it or put it right?

Inspections and handover checks often pick up fire stopping. Late discoveries can delay handover while openings are reopened and resealed which is why earlier is better. Over time, UV, weather and movement wear any sealant out. Renewing it in good time keeps the building weathertight.

Larger quantities, tricky access or phasing all shape the price. So do site requirements such as inductions and permits.

What you get with us

  • A fixed quote before work starts
  • Commercial sealant work since 2005
  • Public liability insurance in place
  • Failed material removed, not covered up

Read what affects the cost and our accreditations and insurance.

Our process

On arrival, 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 typically taking a single visit for a short list of penetrations, or a phased programme for a whole building. For a job in Lenham, the main thing is a clear picture of the work, so send photographs of each area. A fixed quote follows.

  1. The specification and schedule come first, so we know which details apply.
  2. We plan the sequence of floors, risers and voids with you.
  3. We compare every service penetration with its tested detail before sealing.
  4. Foam, ordinary sealant and debris come out so the seal starts clean.
  5. Backing and fire-rated sealant are installed to the detail and tooled.
  6. Anything outside the detail is reported to you rather than sealed.

Preparing the site

  • Point out parking and an unloading spot
  • Tell staff and tenants when we’ll be in
  • Make sure the joints can be reached

Request a quote

Let us know the site, the scope and your timescale, and a fixed quote will follow. The easiest way is to give us a call on 01277 525 020 or email a schedule or drawings.

Get a price

Read more

When to bring in a specialist

For a quick touch-up, site staff may be fine, but anything bigger is another matter: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.

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.

Owners, agents and contractors

Facilities managers want contractors who arrive with the paperwork sorted. Tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we’ll confirm with the quote.

We take on planned maintenance as well as one-off repairs: working through a building or an estate in stages that fit your budget. Lenham can form part of a wider programme.

Common questions from Lenham clients

Can you work around term dates at a campus such as Canterbury Christ Church University?

Yes, holiday working periods are the norm on campus jobs. Tell us which site documents you need, such as RAMS, our insurance certificate or CSCS details, and they’re confirmed with the quote.

Is Roebuck Business Park, near Lenham, within your area?

Yes. Our area takes in Lenham and its surroundings, with estates and business parks such as Roebuck Business Park included. Send details of the unit and the work through our quote form for a quick quote.

Can you quote from photos?

Many jobs can be quoted from photographs, drawings or a joint schedule. Where they aren’t, we arrange a site visit before quoting.

Are you members of a third-party fire-stopping installer scheme?

No. We are not members of a third-party fire-stopping installer scheme. We are CHAS accredited and a Constructionline member, and our applicators are CSCS-carded. If your contract requires third-party installer certification, we are not the right fit for that package.

What does an EI 60 rating mean?

BS EN 1366-3 covers penetration seals and BS EN 1366-4 covers linear joints. Results are classified under BS EN 13501-2. That rating only holds when the product is installed to its tested detail.

Do you seal on top of existing sealant?

No. Failed sealant is removed and the faces cleaned back to sound, dry material first, because fresh silicone will not bond with aged silicone.

Do you take on multi-site work?

Yes. Multi-site work and planned programmes are a core part of the service, planned site by site to suit how each building is used.

Service penetrations in Lenham buildings

For England, the fire stopping of penetrations is dealt with in Approved Document B. 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. Lenham lies roughly 39 miles out from central London. Office refits around the commuter belt bring new cabling through fire-resisting walls, and the gaps need sealing with the specified product.

Hotels like Chilston Park Hotel, 1.3 miles to the south of Lenham, are refurbished in phases, and each phase can open up compartment walls. Offices at parks like Roebuck Business Park, 1.7 miles to the west of Lenham, are re-cabled with each new tenant, and compartment walls need sealing afterwards to the tested detail. Campus buildings at universities such as Canterbury Christ Church University, 2.5 miles to the north-west of Lenham, see constant changes to data and services, and fire-rated sealant goes in around new penetrations where it is specified.

Lenham is about 7 miles south of Sittingbourne, in Kent. Looking for fire stopping in Lenham? We can help, as we do across Kent. Lenham is one of 931 places in Kent on our list. We also cover London, around 39 miles from Lenham.

Business premises anywhere in ME17 are within our area. For a building on High Street, Mitchell Close and Hatch Road or nearby, send details and we’ll quote for service penetrations. Just outside Lenham, we also work in Leadingcross Green (1 mile south), Woodside Green (1 mile north-east), West Street (1 mile north-east), Lenham Forstal (2 miles south-east) and Lenham Heath (2 miles south-east). A short drive away, we cover Maidstone (8 miles west), Ashford (9 miles south-east), Sittingbourne (7 miles north), Faversham (9 miles north-east), Minster (13 miles north) and Kings Hill (13 miles west).

Local landmarks in Lenham

Locally, jobs take us to sites close to Kiln Wood, The Red Lion pub and The Lenham School, among other places. There’s a railway station in Lenham itself: Lenham station. A little further out are Coldbridge Castle (2.7 miles south) and The Dog Collar Museum (3.6 miles west).

Map of Lenham © OpenStreetMap contributors
Accreditations

Trusted. Accredited. Insured.