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

Construction and new-build mastic in Martin, Kent

Mastic packages for new-build and refurbishment projects throughout Martin and nearby, by CSCS-carded applicators. CHAS accredited and fully insured.

  • External joints sealed in damp or cold conditions that are now failing
  • Failed sealant in an existing building being refurbished
  • Different trades sealing to different standards
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
London, the South East & Scotland
CHAS accredited
£5m public liability

Construction mastic for Martin sites

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

About our construction mastic in Martin

A typical mastic package covers more than window perimeters: external door and window perimeters, internal decorators’ caulk where specified, sanitary joints in bathrooms and washrooms, kitchen worktops and splashbacks, and snagging before handover. One contractor for all of it keeps the responsibility in one place, and one applicator team gives a consistent finish. The enquiries we see most involve snag items on joints that need redoing before handover and sanitary sealant damaged by following trades, on sanitary and kitchen joints, window and door perimeters and brick and block movement joints. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: in Martin, that means joint design, primers and backing rod as standard.

Sites around smaller places like Martin can be a fair drive from suppliers, so we come with everything the package needs. Send drawings or photos and the programme and we’ll quote to suit.

We sign every job off with a 12-month guarantee. The promise is simple: if the work we did fails within twelve months, we return to fix it.

Place
Martin (CT15)
Wider area
Kent
Guarantee
A 12-month guarantee
Price
Fixed quote, scope in writing
Phone
01277 525 020
Updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

Why deal with it now?

Clearing snags piecemeal is tempting when handover is close. A planned sweep of each plot or floor catches the lot in one go and saves applicators coming back again and again. We can run snagging as its own phase before handover. Converted and older buildings near places like Martin tend to move, and aged sealant cracks. A sealant with the right movement capability, correctly sized, lasts far better.

The work involved drives the cost: stripping out, preparation, sealing, access and phasing. Call for a fixed quote.

Why clients in Martin choose us

  • Matching to RAL references, product permitting
  • Standard and matched colours in many product ranges
  • Work to your specification and the manufacturer’s guidance
  • Failed material removed, not covered up

See our cost guide and our accreditations.

Signs you need construction mastic in Martin

Three-sided adhesion is a frequent fault on new work. Bonded to the base of the joint and both sides, sealant can’t stretch evenly, so depth is controlled with backing rod or bond-breaker tape.

Any of the following is a good reason to get the joints checked over:

  • Sealant knocked or painted over by other trades
  • External joints sealed in damp or cold conditions that are now failing
  • Frame perimeters left unsealed or poorly sealed
  • Perimeter gaps outside the sealant’s range

Recladding or extending a unit at a site like White Cliffs Business Park, 2.4 miles south-west of Martin, brings panel joints and frame perimeters into the programme.

What your quote should include

  • Their approach to joint depth and backing
  • What level of public liability insurance do they hold?
  • How the joint faces will be prepared and primed
  • Whether old or failed sealant will be cut out, not overlaid

Questions to ask before you appoint anyone

Mastic packages on Martin sites

Martin is within about 3 miles of the coast. Schemes this close to the sea see their facade joints tested by wind and rain from the day they’re sealed, and the sealant, primer and backing need choosing with that in mind. Martin is in the South East, one of the UK’s drier regions. Winter mornings still bring frost and condensation on frames and panels, so the external programme keeps a little slack.

Older buildings in the area around Martin, such as Walmer Castle, 3 miles north-east of Martin, need care when sealed: the product has to suit soft or historic materials. Extensions at sites like Royal Victoria Hospital, 3.6 miles to the south-west of Martin, normally sit beside working departments, and the mastic follows strict access rules.

Martin is about 3 miles north-east of Dover, in Kent. We send applicators to Martin for mastic packages. We work across 931 places in Kent, from busy centres to rural villages. London is covered too, some 66 miles away.

If you need construction mastic in CT15, the process matches everywhere else we work: details, then a fixed price, then sealing and a 12-month guarantee. Buildings on The Street, Waterworks Lane and Ringwould Road are within our area for mastic packages. Just outside Martin, we also work in Martin Mill (1 mile south-east), East Langdon (1 mile south-west), West Langdon (1 mile west), Ringwould (1 mile north-east) and Sutton (1 mile north). Nearby towns on our patch include Canterbury (13 miles north-west), Margate (14 miles north), Dover (3 miles south-west), Folkestone (10 miles south-west), Ramsgate (12 miles north) and Broadstairs (13 miles north).

Around Martin

We work on buildings around The Lantern Inn and Duke of York's Royal Military School. Martin has its own railway station: Martin Mill station. Other landmarks nearby include Royal Victoria Hospital (3.6 miles south-west) and St Margaret's Museum (2.5 miles south-east). For a walk, there’s Dover Western Heights.

Map of Martin © OpenStreetMap contributors

FAQs: Martin

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

Yes, hospitals are one of the sectors we cover. The estates team’s permit system and infection-control rules come first, and the work is planned around them.

Does the sea air around Martin change the choice of sealant?

It can. Driven rain and salt are tougher on outside sealant than sheltered inland conditions. That puts more weight on product choice, primers where the manufacturer specifies them, and correct joint sizing.

Are you insured?

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

Do your applicators hold CSCS cards?

CHAS and Constructionline are both in place, and our applicators hold CSCS cards. Public liability insurance is in place.

Can weather delay the job?

For external joints, yes. The joint has to be dry and within the product’s temperature range, so damp, frosty or very cold days can stop external work. Internal work is rarely affected.

What if there’s asbestos in the old mastic?

The duty to manage asbestos sits with the building’s dutyholder, so we’ll ask for the register before work on an older building. Work pauses if suspect material is found, until it has been tested.

Who decides which product is used?

The specification comes first, if there is one. Without one, the joint decides: its movement, its surfaces and what it has to cope with.

Commercial clients in Martin

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

We work for building owners and managing agents on everything from one building to a spread of sites around Martin. Several sites can go on one quote, which keeps the paperwork simple.

When it isn’t the sealant

Some faults sit outside our scope, and we say so rather than covering them up:

  • Damage to finishes by other trades after we’ve sealed
  • Designing joint widths or choosing the specification (that sits with the designer)
  • Frames fitted out of tolerance

Not sure which it is? You can call 01277 525 020 or send details through our quote form and we will tell you honestly before you book.

Surfaces we seal

  • Floor and skirting junctions
  • Brick and block movement joints
  • Sanitary and kitchen joints
  • Internal decorators’ caulk
  • Cladding and panel joints
  • Window and door perimeters

From enquiry to sign-off

Where the site stays busy, we agree a sequence with your contact so the disruption stays in one area at once. Each area is protected, prepared and sealed, then reopened once the sealant allows before we move to the next. If others near Martin need work, visits can be combined. You’ll have a fixed quote before work starts.

  1. We walk the site or review drawings to understand the package.
  2. A fixed quote sets out scope, products and phasing.
  3. Paperwork is agreed and applicators are inducted on site.
  4. Sealing follows the programme as areas are released.
  5. Any frame gaps or issues outside our scope are flagged to the site team.
  6. Final snagging is completed and the 12-month guarantee applies.

Preparing the site

  • Let building users know which areas are affected
  • Confirm the product named in the specification
  • Point out any areas we must not close

Get a fixed quote

Send us photographs, drawings or a joint schedule and a fixed quote comes back to you. If the job needs a look first, we will arrange a site visit.

Get a quick quote

Read more

Cost factors for mastic packages

To price the job, we consider:

  • Specialist products, such as fire-rated or hygienic sealants
  • The size and state of each joint
  • How much existing material needs removing
  • Site requirements such as inductions and permits

The specified product makes a difference, as does the preparation each joint needs. Access, phasing and site requirements come into it too.

Details that help us quote

However big the job, the same details help:

  • Photos of the joints, close up and from further back
  • Anything awkward about access or site hours
  • When you need the work done
  • Drawings or a marked-up plan, if available

For a fixed quote, ring 01277 525 020 or email drawings and photos with the site address and an outline of the work. Our quote form is another easy route.

Accreditations

Trusted. Accredited. Insured.