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

Fire-rated sealing and fire stopping in Offham, Kent

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

  • Head-of-wall gaps with no fire seal
  • Fire stopping installed outside its tested range
  • Penetration schedules that need working through
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
South East, London & Scotland
CHAS accredited
£5m public liability

Fire stopping in Offham

Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.

Leave it or put it right?

Open penetrations multiply: every new cable or pipe adds another. A schedule that is dealt with regularly stays manageable, rather than turning into a full building survey and reseal. Older rural buildings around Offham move with the seasons, and rigid or tired sealant can’t keep up. The right product, sized to the joint, copes much better.

Quantities, awkward access and phased working all shape the price. Site requirements like inductions and permits play a part as well, along with the time of year for external work.

Why clients in Offham choose us

  • Fixed quotes based on photos, drawings or a visit
  • Fully insured
  • CHAS accredited
  • Work carried out by CSCS-carded applicators

Read what affects the cost or our accreditations.

Fire stopping for commercial buildings in Offham

Sealant is the specified answer for plenty of openings, such as metal pipes, cables and some small ducts where the detail covers them. Larger openings and some plastic pipes call for collars, wraps, batts or boards instead. If the detail calls for something other than sealant, we say so rather than force sealant into it. If you’re dealing with openings left by services added after handover and open linear gaps along the top of fire-resisting walls, we can help, whatever the surface. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, the work in Offham is the same: failed joints cut out, faces prepared and the right sealant laid to the right depth.

Smaller places such as Offham still have buildings with fire-resisting walls and floors: schools, halls, care homes and commercial conversions. Any service penetration through those walls should be closed with the specified product, set out as its test evidence shows.

Whoever the client is, the cover is the same: a 12-month guarantee on our workmanship. It doesn’t extend to damage, faults in the building or work by others, and we are upfront about that.

Mastic Doctor team members lined up next to their branded vans outside an office building
Where
Offham (ME19)
Wider area
Kent
Guarantee
12 months on every job
Quotes
A fixed quote before we start
Phone
01277 525 020
Page updated
3 November 2026

On site: what to expect

Diagnose, treat, sign off: that’s the shape of every visit. We inspect the joints and confirm what’s in scope, then we prepare and seal each joint with the specified product, and we finish with a walk round so the work can be signed off. Smaller jobs around Offham can be grouped with others nearby, which keeps travel down. You’ll have a fixed quote before work starts.

  1. We read the specification, drawings or penetration schedule you send 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

  • Point out parking and an unloading spot
  • Make sure the joints can be reached
  • Let us know about inductions and permits

Quotes

Send us photos, drawings or a joint schedule are often enough for a fixed quote. If the job needs a look first, we’ll arrange a site visit.

Get a quick quote

Related advice

Where services cross fire walls in Offham

A number of hotels sit less than 2 miles from Offham. A hotel refit often runs new services through compartment walls between bedrooms and corridors, and each opening needs the specified seal. Central London is about 25 miles from Offham. Offices around the capital are refitted often, and the cabling that follows can breach fire-resisting walls.

In a building such as Church of St Michael, any service penetration through a fire-resisting wall should be sealed to the specified detail. Hotels such as Bear Hotel (to the east of Offham) rely on fire-resisting walls between bedrooms and corridors, and refits that add services leave penetrations to seal where fire-rated sealant is specified. On a site such as Kings Hill Business Park, which lies south-east of Offham, every fit-out that runs new services through a compartment wall leaves penetrations to seal with the specified product.

Offham is about 7 miles west of Maidstone, in Kent. Our applicators travel to Offham for work on service penetrations. Offham is one of 931 places we cover in Kent for service penetrations. Our London page has more on work in that area.

Anyone looking for fire stopping in ME19 gets the same process as the rest of our area: send details, get a quote, we seal, guaranteed. For a building on Church Road, Pepingstraw Close and Teston Road or nearby, send details and we will quote for service penetrations. We also cover Wrotham Heath (1 mile west), Comp (2 miles west), Kent Street (2 miles south), New Pound (2 miles south) and Herne Pound (2 miles south) for service penetrations. Nearby towns on our patch include Maidstone (7 miles east), Dartford (12 miles north-west), Sevenoaks (8 miles west), Royal Tunbridge Wells (12 miles south-west), Gravesend (10 miles north) and Tonbridge (8 miles south-west).

What’s near Offham

In Offham, that means premises near King's Arms Public House and Manor Park Country Park. The nearest railway station is West Malling station, roughly 1.9 miles east. Nearby you will also find Leybourne Castle (2.2 miles north-east) and Maidstone Hospital (4.8 miles east).

Map of Offham © OpenStreetMap contributors

What affects the price in Offham

Quotes vary with the job. Expect it to depend on:

  • How much there is to seal
  • The size and state of each joint
  • Phasing around occupants
  • Which sealant the job calls for

The work involved drives the cost: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a quote.

Details that help us quote

To price the job accurately, we need a clear picture of the site. Send us:

  • Your programme or deadline
  • Approximate linear metres or a joint schedule
  • Asbestos survey details if the building is older
  • Specification clauses that apply

To get a fixed quote, give us a call on 01277 525 020 or email drawings and photos. You can also send details through our quote form.

Offham: questions and answers

Can you take on a job at a hospital such as Maidstone Hospital?

Yes, healthcare and care buildings are part of our work. Each area is agreed with the ward or department and the estates team in advance.

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

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.

How long does a typical visit take?

That varies with the scale of the job, but the work typically takes anything from one day to a planned run of visits, depending on the number of seals and the access. Larger or phased jobs take longer, and we’ll give you a timescale with the quote.

How long before the joints can be used?

We’ll confirm how long the chosen product needs to cure, and sign any area that should be left alone.

Do you cover Offham?

Yes. Offham falls within our area, and you can speak to us on 01277 525 020 or email a schedule or drawings to get started.

How long will the new sealant last?

It depends on movement, UV and weather, cleaning, traffic and the product. Sealant joints are maintenance items, so inspect them regularly.

Will you quote for a small job?

Single areas, one-off repairs and whole buildings are all quoted the same way: send details, get a fixed quote, we seal, guaranteed.

Aftercare for building managers

Keep the joints in good shape with a few simple steps:

  • Check with the data sheet before painting over fire sealant
  • Brief every trade that openings they make must be sealed
  • File the specified details where the next contractor can find them
  • Look above ceilings when tiles are lifted for other jobs

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.

Ask every contractor who works in risers or voids to report openings they create. Small habits like this stop openings building up.

Should maintenance staff do it?

The visible bead is only part of the job. Backing rod, primer where specified and a joint designed to move with the building are where general trades tend to cut corners.

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.

For managing agents and facilities managers

When you manage a building on behalf of an owner, clear figures and clear communication matter. You get a fixed quote, an agreed scope and a walk round at the end.

We take on planned maintenance as well as one-off repairs: resealing failed joints building by building, on a schedule that suits your budget. Offham can form part of a wider programme across Kent.

Accreditations

Trusted. Accredited. Insured.