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

Expansion and movement joint sealing in Guston, Kent

Work needed on a movement joint in Guston? We assess it, carry out the work and guarantee our workmanship for 12 months.

  • Leaks through car park deck joints onto the level below
  • Expansion joints split through the centre of the bead
  • Weathered movement joint sealant that no longer flexes
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
12-month guarantee on our workmanship.
London, the South East & Scotland
Constructionline member
£5m public liability

Expansion joint sealing for businesses in Guston

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

Expansion joint sealing in Guston, done properly

Our movement joint work takes in walls, panels, decks and floors: brickwork and blockwork joints, precast and cladding panel joints, concrete joints, car park decks and ramps, podiums and floor movement joints. The product depends on the movement, the weather and anything that runs over it and we name it in the quote. If you have car park joints leaking onto vehicles below and weathered movement joint sealant that no longer flexes, we can put it right, whatever the surface. Whoever orders the work in Guston, the brief is usually the same: a clear scope, tidy work and joints that don’t fail again.

Jobs around smaller places like Guston are planned so the whole job is done in one visit. Note joint widths and the traffic that uses them, and we’ll take it from there.

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

Location
Guston (CT15)
Region
Kent
Cover
12 months on every job
Quote
Quoted before any work starts
Telephone
01277 525 020
Updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

Common problems we fix in Guston

Three-sided adhesion is a common cause of early failure. Bonded on three faces, it can’t stretch evenly when the joint opens so backing is set before sealing.

Things that normally lead to an enquiry:

  • Previous reseals laid over old sealant
  • Joints where the bead has lost adhesion
  • Brittle, chalky sealant on external joints
  • Rain penetration at brick or block movement joints

Schools like Duke of York's Royal Military School often have long brick elevations with movement joints that age quietly.

Comparing quotes

  • Can the work be phased to keep areas open?
  • How joint depth will be controlled
  • Health and safety accreditation such as CHAS
  • What level of public liability insurance do they hold?

Choosing a commercial sealant contractor

Guston: questions and answers

Will you take on work at estates like White Cliffs Business Park, close to Guston?

Yes. Estates, retail parks and business parks around Guston, White Cliffs Business Park among them, are all within reach. Photos and a short description are enough for a first look.

Is Guston off your patch?

Not at all: smaller places are covered as well as towns. Our area covers London and the South East counties. Send photos and a list of what needs doing, and we will plan the job to need as few trips as possible.

What’s the quickest route to a quote?

It works in four steps: send details, get a quote, we seal, guaranteed. The first step only needs photos and a postcode.

Does the weather affect the work?

Outside, 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 sealant do you use in movement joints?

We choose a sealant with a movement capability that suits the joint as set out in BS EN ISO 11600. Hybrid or MS polymer products suit some mixed-material joints.

Why has the sealant in our expansion joints split?

The way it has failed typically tells us why: tearing down the centre means too much movement, and lifting off one side means poor adhesion. Sometimes the edge material itself has failed.

Is any job too small?

Whatever the size, the process is the same: details, then a fixed price, then sealing, then a 12-month guarantee.

How the quote is worked out

Sealant work doesn’t have a standard rate, because every site is different. What we take into account:

  • How accessible the joints are
  • Location, for remote and island sites
  • Induction, permit and paperwork requirements
  • Quantities, in metres or numbers

The product called for affects the cost, and so does the preparation, such as cutting out, priming or new backing rod. Access, phasing and site requirements come into it too.

Details that help us quote

Whether it’s one area or a whole building, these details speed things up:

  • The site address and postcode
  • Clear photos of the problem areas
  • Any dates the work must fit around
  • Any specification or named product

The quickest route to a quote is a few photos and the site postcode. Upload them with the quote form, or phone 01277 525 020 or email us to discuss it first.

What the job involves on each surface

Joints between different materials

Hybrid or MS polymer sealants bond to many substrates. The choice depends on the substrates and how much the joint moves.

Cladding panel joints

We confirm what access is in place before pricing. Photos taken near the joints help us price accurately or a site visit fills the gaps.

Work for main contractors and building owners

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

Facilities managers want contractors who arrive with the paperwork sorted. Tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we will confirm with the quote.

Expansion joint sealing in Guston: the local picture

Guston is within about 2 miles of the coast. Coastal yards and decks give their joints salt and wet weather to deal with, not just wheels, which is why split joints are worth sealing before the edges deteriorate. Guston is in the South East, one of the UK’s drier regions. External slab and deck joints still need a dry, clean joint to seal, and where de-icing salt is spread in winter, open joints let it in.

Hospitals like Buckland Hospital, 2.1 miles south-west of Guston, have multi-storey or surface car parks whose joints carry vehicles round the clock. Parks like White Cliffs Business Park, 0.9 miles to the west of Guston, combine paved areas, car parks and building elevations, each with joints that move.

Guston is about 2 miles north-east of Dover, in Kent. Across the CT15 postcode area, it works the same way: send details, get a fixed quote, we seal, and the work is guaranteed. Guston is one of 931 places we cover in Kent for movement joints. For work in that direction, see our London page (66 miles or so).

Business premises anywhere in CT15 are within our area for movement joints. Buildings on The Street, Chance Meadow and The Lane are within our area for movement joints. Nearby places we also cover include East Langdon (1 mile north-east), Church Whitfield (1 mile north-west), West Cliffe (1 mile east), Martin Mill (2 miles north-east) and Charlton-in-Dover (2 miles south-west). Bigger towns within reach include Canterbury (14 miles north-west), Folkestone (8 miles south-west), Ramsgate (13 miles north), Broadstairs (15 miles north), Deal (5 miles north-east) and Hythe (12 miles south-west).

Near you in Guston

Around Guston, our work takes us to commercial buildings near Connaught Park, St Edmund's Catholic School and Swingate Inn. Guston’s nearest station is Martin Mill station, about 1.6 miles north-east of the centre. Nearby you will also find Royal Victoria Hospital (1.9 miles south) and Dover Castle (1.8 miles south). Green spaces nearby include Dover Western Heights.

Map of Guston © OpenStreetMap contributors

Keeping the joints sound

Cleaning and maintenance staff play a part too. Share these points with them:

  • Note which joints were done, when, and with what
  • Treat a small split as a warning, not a cosmetic issue
  • Reopen bays and walkways only after the stated cure time
  • Keep scrapers and ploughs from dragging across joint sealant

Keep wheels, feet and water off new joints until the sealant has cured. The time varies with product, conditions and joint depth and we will tell you when each bay or area can reopen. Keeping the area coned off until then avoids tyre marks and damage.

Once debris packs a failed joint, the structure has nowhere to expand. The edges then take the pressure and start to spall. A sound seal keeps the joint working.

Our process

Before we leave any area, the masking comes off, the area is cleaned and every joint is checked. If an area should be left alone while the sealant cures, we say how long and put signs out. For work around Guston, we aim to finish in one visit, so photographs and measurements up front really help. That way the right products come on the day.

  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, and we tell you if any edges need repairing first.
  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. Finished joints are checked and backed by our 12-month guarantee.

Getting the site ready

  • Point out any areas we must not close
  • Send your site hours and access windows
  • For older buildings, check the asbestos register before work

Get a fixed quote

Every job follows the same four steps: send details, get a quote, we seal, guaranteed. To take the first step, speak to us on 01277 525 020 or use the quote form.

Ask for a quote

Read more

Accreditations

Trusted. Accredited. Insured.