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

Fire-rated sealing and fire stopping in Lower Cox Street, Kent

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

  • Fire stopping installed outside its tested range
  • Unsealed penetrations discovered above suspended ceilings
  • Damaged fire seals in risers and voids
1
Send details
Tell us about the site, with photos if you have them.
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.
South East, London & Scotland
CHAS accredited
£5m PL insurance

Need fire stopping in Lower Cox Street?

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

From enquiry to sign-off

Where the site stays busy, the work is phased so only one area is out of use at a time. Each section is protected, cleaned back and sealed before we move to the next. For work around Lower Cox Street, we aim to finish in one visit, so we ask for photos and rough sizes first. Then the right materials arrive with us.

  1. We read the specification, drawings or penetration schedule you send and ask about anything unclear.
  2. On site, each opening is checked against the tested detail it is meant to follow.
  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.

Preparing the site

  • Tell us what induction or permit system the site runs
  • Send your site hours and access windows
  • Share the asbestos register for older buildings

Get a fixed quote

Pricing a project or setting a maintenance budget? Send the scope and any drawings, and we will return a fixed quote you can plan around. For a chat about it beforehand, phone 01277 525 020 or email the details over.

Get a price

Read more

About our fire stopping in Lower Cox Street

On a fit-out or refurbishment, we follow the services contractors floor by floor. To price a package, give us a call on 01277 525 020 or send details through our quote form with the schedule or marked-up drawings alongside the manufacturer’s details. Tell us what records you need and we’ll confirm with the quote. The enquiries we see most involve improvised or mixed-product fire seals and seals disturbed by maintenance and left open, on joints between fire-resisting walls and floors, small duct penetrations where the tested detail allows and cable penetrations. Whoever orders the work in Lower Cox Street, the brief is normally the same: a clear scope, tidy work and joints that don’t fail again.

A job near Lower Cox Street is usually planned around one visit, so send the specification and photographs first. Design and sign-off belong to the designer or building control; we install what’s specified.

Building owners and contractors get the same cover: twelve months on the work we carried out. Faults in the structure, damage and other trades’ work fall outside it, and we say so plainly.

The Mastic Doctor team beside their liveried vans in front of an office building
Place
Lower Cox Street (ME14)
Region
Kent
Cover
12 months on our workmanship
Price
Fixed quote, scope in writing
Telephone
01277 525 020
Last updated
3 November 2026

Keeping the joints sound

Sealant joints are maintenance items, and their life depends on movement, exposure, cleaning and use. We suggest:

  • Ask which product is in place before decorating
  • Keep general-purpose fillers away from compartment walls
  • Agree the fire-stopping specification before services go in
  • Treat an open penetration as a priority repair

Keep the product data and installation details with the building’s fire safety information. Anyone resealing later needs to know which product and detail were used.

Ask every contractor who works in risers or voids to report openings they create. It costs little and catches breaches early.

Doing it in-house

Redoing a failed joint normally costs more than getting it right at the outset, since all of it has to come out and the faces be cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.

General builders and handymen seal joints, but it isn’t their main trade. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint.

For managing agents and facilities managers

When you manage a building on behalf of an owner, clear figures and clear communication matter. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative, plus a 12-month guarantee.

CHAS accredited and a Constructionline member, we are straightforward to vet for your supplier list. We are fully insured, and our insurance certificate can go with the quote.

Penetration seals near Lower Cox Street

Lower Cox Street is about 32 miles from central London. Offices around the capital are refitted often, and the cabling that follows can breach fire-resisting walls. For England, the fire stopping of penetrations is dealt with in Approved Document B. The national BS 476 classes are due to drop out of it from 2 September 2029, leaving the European BS EN 13501-2 route, subject to transitional arrangements. Our part stays the same: the specified product, installed to its tested detail.

For a building such as Church of St Peter, new heating or data runs are the usual reason penetrations need sealing. Shop fits on retail sites such as Hempstead Valley Shopping Centre, 1.9 miles north-west of Lower Cox Street, can bring new services through fire-resisting walls between units, to be sealed with the specified product. Residences at universities like Canterbury Christ Church University (to the south-east of Lower Cox Street) have compartment walls that must be resealed whenever services change.

Lower Cox Street is about 4 miles south of Gillingham, in Kent. We cover Lower Cox Street and the rest of Kent, with the same fixed quotes and 12-month guarantee as everywhere else. Lower Cox Street is one of 931 places in Kent on our list for service penetrations. London is covered too, around 32 miles from Lower Cox Street.

Postcode districts covered here: ME14 for service penetrations. Just outside Lower Cox Street, we also work in Scragged Oak (1 mile north-west), Kemsley Street (1 mile north-west), Bredhurst (1 mile north-west), Dunn Street (1 mile north-west) and Lidsing (2 miles north-west). Nearby towns on our patch include Maidstone (5 miles south-west), Sittingbourne (6 miles east), Gravesend (12 miles north-west), Faversham (13 miles east), Northfleet (13 miles north-west) and Minster (11 miles north-east).

Local landmarks in Lower Cox Street

Around Lower Cox Street, our work takes us to commercial buildings near White Horse Wood and the streets around them. Lower Cox Street’s nearest station is Bearsted station, roughly 3.1 miles south. Well-known places in the area include Allington Castle (4.1 miles south-west) and KIMS hospital (2.8 miles south-west). Green spaces nearby include Burham Down and Detling Hill.

Map of Lower Cox Street © OpenStreetMap contributors

Different surfaces, different methods

Masonry and concrete

Block walls and concrete floors are common substrates for penetration seals. Dust and debris are cleared from the opening, so the sealant and any backing sit properly.

Drylining partitions

Drylined fire walls are tested in a particular build-up. We check that the product’s detail covers that partition type and board thickness first.

What sealant work can’t fix

A few problems need another trade or a different fix, and we point that out rather than sealing over them:

  • Construction that lacks the fire resistance the seal relies on
  • Issuing fire ratings or certificates for seals
  • Openings that need collars, wraps, batts or boards rather than sealant

If in doubt, call 01277 525 020 or send details through our quote form and we’ll say what we think.

Where we work in Lower Cox Street

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

Questions about Lower Cox Street

Will you plan work around the academic year at somewhere like Canterbury Christ Church University?

Yes, holiday working periods are the norm on campus jobs. Let us know which documents your site asks for, and we will confirm them alongside the quote.

Is a smaller place like Lower Cox Street outside your area?

Not at all. Lower Cox Street is within our area. We work across Greater London and the South East. Good photographs up front let us bring everything on the first visit.

Is the work guaranteed?

Yes. Workmanship is guaranteed for 12 months on every job.

How long does a typical visit take?

The duration is planned around your programme and the access we’re given. You’ll have an expected duration with the quote.

How do we ask for a quote?

You can use the quote form on this site; alternatively, call the office on 01277 525 020 or use the quote form. Include photos or drawings if you have them.

How much does the work cost?

There isn’t a price list, because every site is different. With photos or drawings, we can give you a fixed quote.

Can weather delay the job?

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

Accreditations

Trusted. Accredited. Insured.