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

Fire-rated sealing and fire stopping in Hareplain, Kent

Our CSCS-carded applicators take on fire-rated and intumescent sealing of service penetrations and linear gaps in Hareplain and the surrounding area. Send photographs or drawings for a fixed quote.

  • Snag lists that include open service penetrations
  • Unsealed openings around new pipes and cables
  • Seals disturbed by maintenance and left open
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
12-month guarantee on our workmanship.
Covering the South East & Scotland
CHAS accredited
£5m public liability

Fire stopping near Hareplain

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

How we handle fire stopping in Hareplain

The test standards are BS EN 1366-3 for penetration seals and BS EN 1366-4 for linear joints, with results classified under BS EN 13501-2. A rating such as EI 60 only holds when the product is installed as it was tested. Reproducing the tested arrangement on site is the part we take care of. We work on small duct penetrations where the tested detail allows, joints between fire-resisting walls and floors and cable penetrations, and the usual reasons a site gets in touch are non-fire-rated filler around services and service penetrations left open after M&E works. One point of contact handles commercial sealant work in Hareplain from the first photos to the final walk-round, for single jobs and planned programmes alike.

A job near Hareplain is typically planned around one visit, with the specification and photos sent in advance. Design and sign-off belong to the designer or building control; we install what’s specified.

We stand behind the joints we seal with a 12-month guarantee. It covers how we prepared and applied the sealant, and we come back if anything isn’t right.

The Mastic Doctor team standing beside their branded vans outside an office building
Location
Hareplain (TN27)
Wider area
Kent
Guarantee
12 months on every job
Price
Quoted before any work starts
Call
01277 525 020
Page updated
3 November 2026

Leave it or put it right?

Open penetrations multiply: every new cable or pipe adds another. Keeping on top of it after each round of works keeps the job small, rather than turning into a full building survey and reseal. For buildings around smaller places like Hareplain, water damage can go unnoticed for longer, especially where a building isn’t used daily, which gives a failed joint time to do damage. Resealing early avoids that.

Whether it’s a single area or a whole estate, the same things set the price: what’s in scope, how we reach it, what’s specified and when it needs doing. Call for a quote and we’ll put a fixed figure on it.

Why appoint us

  • Workmanship guaranteed for 12 months
  • Fixed quotes based on photographs, drawings or a visit
  • Fully insured, including public liability cover
  • One contact handling all your sites

See what affects the cost or our accreditations.

Doing it in-house

A short, simple internal joint is often within reach of a maintenance team. Where it goes wrong is preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.

For a quick touch-up, site staff may be fine, but larger jobs are different: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.

FAQs: Hareplain

Is a smaller place like Hareplain outside your area?

No. Small places get the same service as large ones. Our area covers London and the South East counties. We plan jobs in smaller places so return trips are kept to a minimum.

Would you work within a site like Benenden Hospital?

Yes, healthcare and care buildings are part of our work. We follow the site’s permits, sign-in and infection-control procedures in every area.

What if there’s asbestos in the old mastic?

Asbestos is possible in some older mastics, particularly in buildings from before 2000. Before we disturb old sealant in an older building, we ask to see the asbestos register or survey, and if asbestos is suspected, work stops until it’s tested. Removing asbestos is a job for asbestos specialists, not us.

How long does a job like this take?

That varies with the scale of the job, though a typical visit usually takes longer where risers, ceiling voids or occupied floors have to be worked through in sequence. Larger or phased jobs take longer, and we will give you a timescale with the quote.

How do we ask for a quote?

It works in four steps: send details, receive a fixed quote, we carry out the work, and it’s guaranteed. Step one needs little more than photos and a postcode.

Will fire-rated sealant work on every penetration?

No. A sealant’s evidence covers set services, gaps and wall or floor types. Outside that, a different product is needed, specified by your designer.

What do you charge?

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

Work for main contractors and building owners

Agents, factors and owners’ representatives all follow the same route: send details, get a fixed quote, we seal, guaranteed. Keys, access and contacts can be agreed in advance.

CHAS accredited and a Constructionline member, we make supplier vetting simple. Our insurance certificate can be sent along with the quote.

Cost factors for service penetrations

These are the things that shape the price:

  • Phasing around occupants
  • How accessible the joints are
  • Quantities, in metres or numbers
  • The site’s rules and procedures

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

Before you send an enquiry

Good information means a firmer quote. Helpful details to send:

  • A wide shot and a close-up of the area
  • Rough lengths or quantities, or drawings if you have them
  • Asbestos survey details if the building is older
  • Anything awkward about access or site hours

Every job follows the same four steps: send details, get a quote, we seal, guaranteed. To take the first step, call the office on 01277 525 020 or send details through our quote form.

Our process

Before any cutting starts, the area is protected: tape along each joint edge and covers over finishes, stock and equipment close by. On site, the work usually takes anything from one day to a planned run of visits, depending on the number of seals and the access, and we clear our waste as we work. Rural sites near Hareplain 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 go through the drawings, schedule or specification for the seals and raise any questions before we price.
  2. Every penetration is compared with its detail: wall or floor type, service, gap size and depth.
  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. Fire-rated or intumescent sealant is gunned in to the specified depth, then tooled.
  6. Openings that need a collar, wrap, batt or other product are flagged to you rather than filled with sealant.

What we need from you

  • Send your site hours and access windows
  • Tell staff and tenants when we will be in
  • Flag any permit to work we will need

Quotes

A handful of photos and a postcode is the fastest way to a quote. Upload them with the quote form, or call the office on 01277 525 020 or send photos by email if you’d rather talk the job through.

Get a price

Related advice

Where services cross fire walls in Hareplain

At about 40 miles from central London, Hareplain is within reach of the capital. Office refits around the commuter belt bring new cabling through fire-resisting walls, and the gaps need sealing with the specified product. In England, Approved Document B covers fire stopping of 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. Either way, we install the specified product to its tested detail.

For buildings in and around Hareplain, fire-rated sealant is installed where it is specified, to the manufacturer’s tested detail. For a hospital such as Benenden Hospital, 2.7 miles south of Hareplain, penetration sealing is usually phased ward by ward, with infection-control rules agreed first.

Hareplain is about 10 miles south of Maidstone, in Kent. Commercial clients in Hareplain can call on us for service penetrations. Hareplain is one of 931 places we cover in Kent. For work in that direction, see our Brighton page.

Postcode districts covered here: TN27. Close to Hareplain, our area also takes in Three Chimneys (1 mile south-west), Biddenden (1 mile south-east), Curteis' Corner (1 mile east), Lashenden (2 miles north-east) and Standen (2 miles east). A short drive away, we cover Maidstone (10 miles north), Ashford (11 miles east), Royal Tunbridge Wells (15 miles west), Tonbridge (15 miles west), Kings Hill (14 miles north-west) and Foley Park (11 miles north).

Landmarks near Hareplain

Recent enquiries here include premises near Three Chimneys Public House and the streets around them. For rail, the closest station is Headcorn station, roughly 2.8 miles north. Nearby you will also find Kent Firefighting Museum (0.8 miles north) and Sissinghurst Castle (1.7 miles south-west).

Map of Hareplain © OpenStreetMap contributors

Keeping the joints sound

Cleaning and maintenance staff play a part too. Pass these on to them:

  • Leave fire sealant to cure fully before covering it
  • Arrange inspection before areas are covered up
  • Settle who seals which penetrations at the start of a project
  • File the specified details where the next contractor can find them

After every round of M&E works, check that the openings created have been sealed. Building it into each contractor’s sign-off keeps the walls intact.

On fit-outs, get the fire-stopping specification agreed before the services go in. Details can then be picked to suit the actual pipes, cables and ducts, and the work runs in step with the M&E.

Accreditations

Trusted. Accredited. Insured.