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

Postling Green expansion joint sealing

Commercial sealant work in Postling Green for contractors, FMs and building owners: expansion and movement joint sealing in walls, decks and floors, with a fixed quote first.

  • Damp inside where a wall movement joint has failed
  • Brittle, chalky sealant on external joints
  • Previous reseals laid over old sealant
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
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
12-month guarantee on our workmanship.
London, the South East & Scotland
CHAS & Constructionline
£5m PL insurance

Expansion joint sealing for businesses in Postling Green

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

Aftercare for building managers

After handover, a little attention goes a long way:

  • Treat a small split as a warning, not a cosmetic issue
  • Put movement joints on the planned maintenance inspection round
  • Clear dirt from joint lines during routine cleaning
  • Record the sealant used and the date in the O&M file

Snow ploughs and scrapers catch on joint lines. Raising blades over joints where possible protects the seal.

Rain gets into walls through torn brick and block movement joints. The first sign is often a damp patch indoors. Catching it early keeps the water outside.

Expansion joint sealing in Postling Green, done properly

A movement joint only works while its seal does. When the sealant splits or lets go, the gap fills with dirt and water. Resealing at the first signs of failure is far cheaper than repairing the material either side. If you have debris jammed in movement joints and joints where the bead has lost adhesion, we can put it right. A specialist sealant contractor works differently from a general builder: on jobs in Postling Green, preparation and product choice get the time they need.

For a site near Postling Green, measurements and photos up front mean one trip where possible, with the right materials on hand. Tell us the joint widths if you can, and what drives or walks over them.

A 12-month guarantee applies to all our work. Should something we installed fail, phone 01277 525 020 or send details through our quote form and we’ll come back to it.

Location
Postling Green (TN25)
Region
Kent
Guarantee
12 months on every job
Price
A fixed quote before we start
Phone
01277 525 020
Page updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

Signs you need expansion joint sealing in Postling Green

Sometimes the sealant holds but the substrate breaks away. If the edge of the joint is friable, the bond fails with it so edge repair has to come before resealing.

Most enquiries start with one or more of the following:

  • Previous reseals laid over old sealant
  • Weathered movement joint sealant that no longer flexes
  • Car park joints leaking onto vehicles below
  • Spalled or broken joint edges in floors and decks

For a school such as Aldington Primary School, playground and building joints can be done in the holidays.

Before you book anyone

  • How the joint faces will be prepared and primed
  • Which product they’ll use, and why it suits the joint
  • Will CSCS-carded applicators be on site?
  • How joint depth will be controlled

Our contractor checklist

Different surfaces, different methods

Concrete and precast panel joints

Precast and concrete panel joints move daily. We use a sealant classed for the movement, laid over backing to depth.

Cladding panel joints

Cladding panels move more than masonry as they heat and cool. A sealant with the right movement class is chosen, and we’ll confirm the colours available for the specified product.

What happens if it’s left?

Sealing over a failed movement joint is a common shortcut. A bead laid on top of the failed one neither grips nor flexes properly. We cut out the old seal and prepare the faces every time. Halls, stores and units around places like Postling Green may not be checked every day, which gives a failed joint time to do damage. Renewing joints in good time avoids the problem.

Access often affects the price as much as the sealing: joints within easy reach take less time than ones that need access equipment. Tell us how the joints are reached and call for a quote.

Why choose Mastic Doctor in Postling Green

  • A Constructionline member, so easy to vet
  • Our applicators hold CSCS cards
  • A range of standard colours, depending on the product
  • A fixed quote before work starts

See our cost guide or our accreditations.

Questions about Postling Green

Is Postling Green off your patch?

No. Places such as Postling Green are covered as much as the big towns. We work across Greater London and the South East. Send photographs and a list of what needs doing, and we will plan the job to need as few trips as possible.

Does your area include sites such as Evegate Business Park, near Postling Green?

Yes. We cover Postling Green and the area around it, including industrial estates, business parks and retail parks such as Evegate Business Park. Send details of the unit and the work through our quote form for a quick quote.

Are you CHAS accredited and on Constructionline?

Yes. Mastic Doctor is CHAS accredited and a Constructionline member, which helps with supplier vetting.

What causes movement joint sealant to fail?

The common causes are poor preparation, three-sided adhesion, the wrong movement class and weathering. We diagnose which one it is before resealing.

When is resealing likely to be due?

There isn’t a single answer, since movement, weather, cleaning and use all affect it. Regular inspection is the best way to catch problems early.

Are expansion joints and movement joints the same thing?

It’s a deliberate gap that lets the structure move without cracking. Expansion joint is a name often used for the same thing and both need a flexible seal.

Do you need to see the site first?

Photos, drawings or a schedule are often enough to quote. If the job needs a look first, we will arrange a visit.

Expansion joint sealing in Postling Green: the local picture

Central London is about 54 miles from Postling Green. Warehousing clusters around the motorways that ring and radiate from London. The South East is one of the drier parts of the UK. External joints still wait for dry conditions, while winter salting gets into any joint left open.

On a site such as Evegate Business Park, 2.2 miles north of Postling Green, the movement joints are in car park slabs, paving and building elevations. Sites like William Harvey Hospital, 4.6 miles to the north-west of Postling Green, carry ambulances, deliveries and visitors’ cars over their road and deck joints.

Postling Green is about 5 miles west of Hythe, in Kent. If you are looking for expansion joint sealing in Postling Green, we can help, as we do across Kent. We work across 931 places in Kent, large and small. Brighton is covered too, some 50 miles away.

If you need expansion joint sealing in TN25, the process matches everywhere else we work: details, then a fixed price, then sealing and a 12-month guarantee. Just outside Postling Green, we also work in Aldington (1 mile north-west), Stonestreet Green (1 mile north-west), Bonnington (1 mile west), Clap Hill (1 mile north-west) and Aldington Frith (2 miles north-west). A short drive away, we cover Ashford (6 miles north-west), Canterbury (15 miles north), Dover (15 miles east), Folkestone (9 miles east), Hythe (5 miles east) and Tower Hamlets (15 miles east).

Near you in Postling Green

In Postling Green, that means premises near Walnut Tree Inn and Poulton Wood and the streets around them. For rail, the closest station is Westenhanger station, about 3.5 miles east. Well-known places in the area include William Harvey Hospital (4.6 miles north-west) and Lympne Castle (2.8 miles east). For a walk, there’s Hatch Park.

Map of Postling Green © OpenStreetMap contributors

How a job runs

We follow your site rules from the start: sign-in, induction and whatever permit system the building uses. Once we’re cleared to begin, the joints are worked through in the order agreed with your site contact. Smaller jobs around Postling Green can be grouped with others nearby, which keeps travel down. You’ll have a fixed quote before work starts.

  1. First, the joints are inspected for width, movement and the type of failure.
  2. A fixed quote follows, naming the sealant and its movement class.
  3. We strip out the old seal and prepare the faces.
  4. Closed-cell backing rod is set to depth, or bond-breaker tape in shallow joints.
  5. Primer goes on where the manufacturer specifies it, followed by the sealant, which is then tooled off.
  6. We check every joint before sign-off, and the work carries our 12-month guarantee.

Preparing the site

  • Have the specification and drawings to hand
  • Arrange parking or a loading space
  • Tell us what induction or permit system the site runs

Getting a fixed quote

We quote a fixed sum against the scope you give us, so you know the figure before anyone is on site. To start the process, phone 01277 525 020 or email drawings and photos.

Get a price

Related advice

How the quote is worked out

There’s no standard rate for sealant work, because every site is different. What we look at:

  • Specialist products, such as fire-rated or hygienic sealants
  • Working within restricted access windows
  • How accessible the joints are
  • Travel to remote or island sites

Whether it’s a single area or a whole estate, the same things set the price: scope, access, product and programme. Call for a quote and we’ll put a fixed figure on it.

Sending details for a quote

Whether it’s one area or a whole building, the same details help:

  • Photos of the joints, close up and from further back
  • The asbestos register, for older buildings
  • When you need the work done
  • How the joints are reached, and at what height

Let us know the site, the scope and your timescale, and we’ll put a fixed quote together. To get it moving, speak to us on 01277 525 020 or email us.

Accreditations

Trusted. Accredited. Insured.