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

Fire Stopping in Highstreet

We carry out fire-rated and intumescent sealing of service penetrations and linear gaps in Highstreet. Send details for a fixed quote.

  • Snag lists that include open service penetrations
  • Builders’ foam or ordinary silicone in compartment walls
  • Seals disturbed by maintenance and left open
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
12-month guarantee on our workmanship.
South East, London & Scotland
CHAS & Constructionline
£5m public liability

Fire stopping across Highstreet

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

FAQs: Highstreet

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

From 2 September 2029, Approved Document B drops its BS 476 references in favour of BS EN 13501-2 classification, with transitional arrangements. The designer or fire engineer sets the specification, and we install the product to the manufacturer’s tested detail.

Will you take on work at estates like Waterham Business Park, close to Highstreet?

Yes. Estates, retail parks and business parks around Highstreet, Waterham Business Park among them, are all within reach. Photos and a short description are enough for a first look.

Which sealant will you use?

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.

Is colour matching possible?

That depends on the product specified. Some ranges offer many colours, others very few, so we will confirm the colours available for the specified product with the quote.

Are you insured?

Yes. Mastic Doctor is fully insured, public liability included.

Will you come and look before quoting?

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

Does the weather affect the work?

Outside, yes. The joint has to be dry and within the product’s temperature range, so frost, rain or cold mornings can delay outside work. Internal work is rarely affected.

How we handle fire stopping in Highstreet

Facilities managers in Highstreet often find open service penetrations when ceilings come down for other work. If a specification already covers those walls and floors, we can reseal to it. Where there isn’t one, the designer or fire engineer needs to set one first. If you have fire seals cut back for extra cables and never reinstated and snag lists that include open service penetrations, we can help, whatever the surface. Searching for sealant specialists in Highstreet? We’ve been sealing commercial buildings since 2005.

Around smaller places like Highstreet, penetration seals come up in schools, halls, pubs with rooms, care homes and farm buildings used as offices. If sealant is what the specification names, we install it around the services exactly as the maker’s detail sets out.

Guaranteed is the last step of every job. Our workmanship is backed for 12 months, and we explain exactly what that covers when we quote.

The Mastic Doctor team beside their liveried vans in front of an office building
Location
Highstreet (ME13)
Wider area
Kent
Guarantee
12 months on our workmanship
Quote
Fixed quote, scope in writing
Telephone
01277 525 020
Updated
3 November 2026

When to bring in a specialist

For most general trades, sealant is a sideline. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint.

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.

Keeping the joints sound

After handover, these steps help:

  • Flag new cables with no seal around them
  • Put resealing into every M&E and fit-out package
  • Include service cupboards in routine inspections
  • Ask which product is in place before decorating

Add risers, plant rooms and ceiling voids to routine fire-stopping checks. Watch for cracked sealant, new services with no seal and openings that have grown and get them dealt with.

Write fire stopping into the scope of any work crossing a compartment wall or floor. Then the seal goes in while the area is open.

How the job changes by surface

Plastic pipes

In a fire, plastic pipework melts away and leaves an opening. Small sizes are sometimes covered by an intumescent sealant detail, though larger ones normally call for a collar or wrap. We check the pipe material and diameter against the detail before we start.

Small ducts

Small ductwork can sometimes be sealed with sealant where the tested detail includes it. Bigger ducts and fire-resisting ductwork are normally handled with other products and we flag that rather than guess.

Diagnose, treat, sign off

We begin with a short walk round with whoever looks after the building, to confirm the scope, the order of work and any areas we must keep clear. Then we strip out anything that has failed, prepare every joint and seal it. Rural sites near Highstreet may need directions, gate codes or a contact on site. Send that with the details and we will confirm the plan with the quote.

  1. First we confirm the product and tested details named in the specification.
  2. Openings are measured and grouped by detail.
  3. Old or wrong materials are cut out.
  4. Mineral wool or other backing is fitted where required.
  5. Fire-rated or intumescent sealant goes in around the services and is tooled off.
  6. We walk the completed areas with you and confirm the records agreed at quote stage.

Getting the site ready

  • Tell us which areas need to stay in use
  • Let building users know which areas are affected
  • Send your site hours and access windows

Ask for a quote

For a fixed quote, give us a call on 01277 525 020 or email the details over. Our quote form is another easy route.

Ask for a quote

Related advice

What we can’t put right

Our job is the joint, not everything around it. On its own, sealant can’t deal with:

  • Openings that need collars, wraps, batts or boards rather than sealant
  • Construction that lacks the fire resistance the seal relies on
  • Writing the fire-stopping specification

If in doubt, phone 01277 525 020 or email the details over and we will say what we think before you book.

Surfaces we seal

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

Common problems we fix in Highstreet

Linear gaps fail where a fire-resisting wall meets a slab, soffit or another wall. Deflection and building movement can open these gaps. Linear joint details set a width range and movement capability, and the seal has to sit within them.

Things that usually lead to an enquiry:

  • Penetration schedules that need working through
  • Unsealed joints where partitions meet the slab
  • Old intumescent sealant that has split away
  • Openings found when ceilings come down for a refit

For an estates team at a campus like University of Kent, 3.9 miles south-east of Highstreet, summer M&E works are usually followed by a round of penetration sealing.

What your quote should include

  • Health and safety accreditation such as CHAS
  • Whether their applicators hold CSCS cards
  • How the existing material will be dealt with
  • Is depth set with backing rod, or bond-breaker tape in shallow joints?

How to choose a sealant contractor

Fire stopping around Highstreet: how the place shapes the job

Highstreet is about 48 miles from central London. Offices around the capital are refitted often, and the cabling that follows can breach fire-resisting walls; the gaps need the specified seal. Highstreet has several hotels close by, all within 2 miles. In hotels, bedroom and corridor walls are usually fire-resisting, so services added in a refit need sealing with the specified product.

Hotels like The Crescent Turner Hotel, 1.3 miles north-east of Highstreet, are refurbished in phases, and each phase can open up compartment walls. At a healthcare site like Whitstable and Tankerton Hospital, 3.6 miles north-east of Highstreet, new services through compartment walls are a constant, and each needs the specified seal.

Highstreet is about 3 miles south-west of Whitstable, in Kent. Highstreet sits inside our coverage, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. 931 places across Kent fall within our area, Highstreet among them. Sites around London have their own page, about 48 miles away.

We take on service penetrations across the ME13 postcode area, for business premises of every kind. If your site is on Thanet Way and Highstreet Road or close by, we can quote for service penetrations. Close to Highstreet, our area also takes in Waterham (1 mile west), Dargate (1 mile south-west), Seasalter (1 mile north), Hernhill (2 miles south-west) and Slutshole (2 miles south-west). Nearby towns on our patch include Ashford (14 miles south), Canterbury (5 miles south-east), Sittingbourne (11 miles west), Whitstable (3 miles north-east), Faversham (4 miles west) and Herne Bay (7 miles north-east).

What’s near Highstreet

We work on buildings around Foxes Cross Bottom. For rail, the closest station is Whitstable station, roughly 3 miles north-east. Well-known places in the area include Whitstable and Tankerton Hospital (3.6 miles north-east) and Tankerton Castle (3.3 miles north-east). Green spaces nearby include Blean Woods RSPB Reserve.

Map of Highstreet © OpenStreetMap contributors
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