The Mastic Doctor team standing beside their branded vans outside an office building
Aberdeenshire · Scotland

Expansion joint sealing in Johnshaven

Expansion and movement joint sealing in walls, decks and floors throughout Johnshaven and nearby, by CSCS-carded applicators. CHAS accredited and fully insured.

  • Damp inside where a wall movement joint has failed
  • Debris jammed in movement joints
  • Sealant pulling off the joint face
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Signed off, with 12 months’ guarantee.
South East, London & Scotland
CHAS & Constructionline
£5m public liability

Expansion joint sealing in Johnshaven

Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.

About our expansion joint sealing in Johnshaven

The seal is what lets a movement joint do its job. Once it fails, water, grit and debris get in; the joint jams, its edges take the load and the arrises spall. Resealing at the first signs of failure is far cheaper than repairing the material either side. We work on car park decks and ramps, brickwork movement joints and precast concrete panel joints, and the usual reasons a site gets in touch are leaks through car park deck joints onto the level below and new sealant over old, now failing. A specialist sealant contractor works differently from a general builder: on jobs in Johnshaven, preparation and product choice get the time they need.

Travel to smaller places like Johnshaven is planned so the work is done in one trip where possible. Photos, approximate widths and what uses the floor help us bring the right materials.

Guaranteed is the last step of every job. You get a 12-month guarantee on our workmanship, and we explain exactly what that covers when we quote.

Mastic Doctor team members lined up next to their branded vans outside an office building
Location
Johnshaven (DD10)
Wider area
Aberdeenshire
Cover
12 months on every job
Quotes
Fixed quote, scope in writing
Phone
01277 525 020
Page updated
3 November 2026

Expansion joint sealing in Johnshaven: the local picture

The sea is no more than about 1 mile from Johnshaven. External movement joints in car parks, ramps and yards near the coast take salt and wind-driven rain on top of traffic, so a failed joint lets more in and the edges break up sooner. Johnshaven is on Scotland’s drier eastern side. Frost and de-icing salt still find their way into open external joints. Autumn is a sensible time to seal them.

Around Johnshaven, open joints collect water and debris, and the arrises are the next to go; we’ll tell you if the edges need repairing first.

Johnshaven is about 8 miles north-east of Montrose, in Aberdeenshire. Commercial clients in Johnshaven can call on us for movement joints, as part of our coverage of Aberdeenshire. Johnshaven is one of 179 places in Aberdeenshire on our list. We also cover Aberdeen, some 26 miles away.

Work on movement joints is covered throughout DD10, whatever the building. We cover commercial and managed buildings on Square, Main Street and Mid Street. Close to Johnshaven, our area also takes in Gourdon (3 miles north-east), St Cyrus (3 miles south-west), Inverbervie (4 miles north-east), Arbuthnott (5 miles north) and Laurencekirk (6 miles north-west).

Near you in Johnshaven

Nearby you will also find Benholm Castle (2.1 miles north). For a walk, there’s St Cyrus National Nature Reserve.

Map of Johnshaven © OpenStreetMap contributors

What we are called out for in Johnshaven

Repeated failure often traces back to the wrong product. Products not classed for the movement fail early. Movement capability is set out in BS EN ISO 11600.

Things that normally lead to an enquiry:

  • Joints where the bead has lost adhesion
  • Movement joints with split or torn sealant
  • Spalled or broken joint edges in floors and decks
  • Debris jammed in movement joints

Around Johnshaven, each joint gets a filler or sealant matched to what crosses it and how much it moves.

What your quote should include

  • How they’ll work around occupants
  • How the existing material will be dealt with
  • Their pre-qualification and accreditations
  • The named product and why it was chosen

Questions to ask before you appoint anyone

How a job runs

A typical day starts with protection: tape along each joint edge and covers over finishes, stock and equipment close by. The work itself normally takes anything from part of a day to a couple of weeks, depending on joint lengths, widths and access, and we clear our waste as we work. Where we can, we combine work around Johnshaven with other jobs nearby. Let us know if your dates have any give.

  1. First, the joints are inspected for width, movement and the type of failure.
  2. You get a fixed quote with the product and its movement capability stated.
  3. The failed seal is removed and both faces are cleaned until sound and dry, and we tell you if any edges need repairing first.
  4. Backing rod goes in at the right depth, or bond-breaker tape where the joint is shallow.
  5. Where the maker calls for primer, it’s applied first, then the bead goes in and is tooled to a concave finish.
  6. We check every joint before sign-off, and the work carries our 12-month guarantee.

What we need from you

  • Move anything stored against the joints
  • Agree which areas must stay open
  • Send any specification or drawings in advance

Ask for a quote

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

Ask for a quote

Related advice

Quoting for work in Johnshaven

There’s no standard rate for sealant work, because every site is different. What we take into account:

  • Location, for remote and island sites
  • Joint width, depth and condition
  • Removal of failed or old sealant
  • Site requirements such as inductions and permits

A quote for movement joints depends on how many there are, their condition and the access, plus any specification you are working to. Call for a quote.

What we need to price the job

For an accurate fixed quote, we need to understand the site. Send us:

  • Photos of the joints, close up and from further back
  • The product your specification calls for
  • Any dates the work must fit around
  • Whether the building will be occupied during the work

Specifications, drawings and tender packages are welcome with any enquiry, and we will price the work to it. For smaller jobs, photographs and a description will do.

Your questions answered

Is Johnshaven too small for you to travel to?

No. Small places get the same service as large ones. Our area covers all of Scotland, cities, towns and islands alike. Send photos and a list of what needs doing, and we will plan the job to need as few trips as possible.

Do we have to stop operations in Johnshaven while the joints are sealed?

Rarely. Work is phased around your operations. The phasing plan comes with the quote.

When is resealing likely to be due?

Nobody can honestly give a figure in years, because life depends on how much the joint moves, how exposed it is and how it’s cleaned and used. Regular checks let you plan resealing before leaks or damage.

Will your applicators have CSCS cards?

Yes. If you need card details for site access, let us know and we’ll send them with the quote.

Does weather matter for sealant work?

It can, for external work. Wet joints and cold, damp or frosty conditions stop the sealant bonding properly, so external work may be moved if conditions aren’t right. Indoors, the weather is rarely a problem.

How do I request a quote?

You can use the quote form on this site; alternatively, ring 01277 525 020 or email a schedule or drawings. Photos, drawings or a joint schedule help us quote quickly.

Do you take on multi-site work?

Yes. A group of buildings can go on one quote, and you deal with one contact throughout across South East England, Greater London and Scotland.

Work for main contractors and building owners

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.

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

How the job changes by surface

Brickwork and blockwork joints

Long brick and block elevations have movement joints at intervals. They take a low-modulus sealant with a movement class to suit, with backing rod setting the depth.

Podium joints

Podium decks are exposed and often trafficked. We choose a product that copes with feet, wheels and weather.

Site staff or a sealant specialist?

For most general trades, sealant is a sideline. A specialist prepares properly, controls joint depth and picks a product with the right movement class.

Using site staff can make sense for a small touch-up, but anything bigger is another matter: a specialist brings efficiency, a consistent finish and a 12-month guarantee.

Accreditations

Trusted. Accredited. Insured.