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

Expansion and movement joint sealing in St Marys, Dundee

Planning work on a movement joint in St Marys? We look at it, seal it with the right product and hand it over with a 12-month guarantee.

  • Expansion joints filled with dirt and stones
  • Joints where the bead has lost adhesion
  • Chipped joint edges on forklift routes
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
A fixed price, with what’s included set out clearly.
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 accredited
Fully insured: £5m PL

Expansion joint sealing across St Marys

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 St Marys, done properly

Internal floor joints take trolleys, pallet trucks and forklifts. Unsupported edges break up under wheels, so the right filler or sealant for the traffic and movement matters. If the arrises are already broken, we will say so before sealing. If you are dealing with arrises breaking up along floor joints and expansion joints filled with dirt and stones, we can help, on precast concrete panel joints, cladding panel joints and podiums and floor movement joints alike. For commercial sealant work in St Marys, you deal with one contact from quote to sign-off, whether it’s one building or several.

Older stone buildings in Scotland’s cities often have later extensions, with movement joints where old meets new. They need the right movement class and correct width and depth to last.

The 12-month guarantee is for workmanship rather than wear and tear. Sealant wears with time, and movement, weather, cleaning and use decide how fast, so we are clear about what is covered before work starts.

The Mastic Doctor team standing beside their branded vans outside an office building
Place
St Marys (DD3, DD2)
Region
Dundee
Guarantee
12 months on every job
Quote
Quoted before any work starts
Telephone
01277 525 020
Last updated
3 November 2026

Our process

Occupied buildings need a little choreography. The work area is signed and kept contained, keep walkways clear and move on in phases so staff and visitors can carry on around us. Give us the access times and building rules for your premises in St Marys, and we’ll plan the work to suit, phased where areas need to stay in use.

  1. First the joints are inspected, widths measured and the type of failure noted.
  2. A fixed quote names the sealant we propose and its movement class.
  3. Phasing is agreed so decks, floors or entrances can stay in use where needed.
  4. We strip the old sealant or filler and prepare each face until it’s sound and dry.
  5. Backing rod or bond-breaker sets the depth, primer goes on where specified, and the sealant is applied and tooled.
  6. We check each joint with you, confirm the cure time and sign off under our 12-month guarantee.

Preparing the site

  • Send your site hours and access windows
  • Agree which areas must stay open
  • Have the specification and drawings to hand

Get a fixed quote

If there’s a specification, drawings or a tender package, send it with your enquiry, and we will price against exactly what is specified. Smaller jobs need nothing more than photographs and a few notes.

Get a price

Advice

What happens if it’s left?

A like-for-like reseal of a joint that keeps splitting rarely lasts. A higher movement class, or a design change by the engineer, may be needed and we’ll tell you honestly. In a tenement or shared city building, water from a failed joint can reach other owners’ property. Fixing it promptly keeps repairs small.

There’s no price list, because the scope varies so much from one building to the next. For a fixed figure, call for a quote.

Why appoint us

  • Workmanship guaranteed for 12 months
  • A Constructionline member, so easy to vet
  • Our applicators hold CSCS cards
  • Public liability insurance in place

Take a look at how commercial sealant jobs are priced or our accreditations and insurance.

When to bring in a specialist

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.

Putting right a botched joint often costs more than sealing it well at the start, 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.

What the job involves on each surface

Podium joints

Podium joints often sit within a waterproofing system. Where the specification calls for sealant, we reseal, and tell you if the problem looks like the waterproofing below.

Car park decks and ramps

Deck and ramp joints take tyre loads, grit and de-icing salts. We use a sealant made for wheel loads and the expected movement.

Do you need expansion joint sealing in St Marys?

Sun, rain and frost age external movement joints. In time the bead chalks, stiffens and cracks, so it can’t follow the movement any more.

Clients typically get in touch after noticing one or more of the following:

  • Layers of sealant in a movement joint
  • Brittle, chalky sealant on external joints
  • Chipped joint edges on forklift routes
  • Joints packed with grit and debris

Warehouse floors on estates like Dryburgh Industrial Estate, 0.6 miles to the south of St Marys, carry pallet trucks and forklifts over every saw-cut joint.

Comparing quotes

  • Whether primer will be used where the manufacturer specifies it
  • What the guarantee covers, and for how long
  • Proof of insurance
  • Will RAMS and insurance details be available?

Choosing a commercial sealant contractor

Joints that move: notes for St Marys

With the shore within about 3 miles, St Marys counts as a coastal location. 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. Being in the east of Scotland, St Marys gets less rain than the west coast. Frost and de-icing salt still find their way into open external joints. Sealing them in drier months limits winter damage.

A healthcare site such as Kings Cross Hospital (1.5 miles south-east of St Marys) depends on car parks, ramps and service yards whose joints take traffic all day. For a centre such as Kingsway West Retail Park (1.1 miles south-east of St Marys), the service yard and car park joints typically need attention first.

St Marys is about 2 miles north-west of Dundee, in Dundee. Businesses, contractors and managing agents in St Marys can call on us for movement joints. Across Dundee, 28 places are covered, St Marys among them.

Commercial sites across DD3 and DD2 are covered. Buildings on Troon Road, Troon Avenue and Gullane Road are within our area. Sites close to St Marys are covered too, including Ardler (1 mile south), Dryburgh (1 mile south), Camperdown (1 mile south-west), Lochee (1 mile south) and Birkhill (2 miles west). A short drive away, we cover Broughty Ferry (6 miles east), Stobswell (3 miles south-east), Barnhill (6 miles east), Pitkerro (3 miles east), Whitfield (3 miles east) and West End (3 miles south).

What’s near St Marys

Around St Marys, our work takes us to commercial buildings near Cox Branch Library and Balgay Hill, among other places. For rail, the closest station is Invergowrie station, about 3 miles south-west. Other landmarks nearby include Wellgate Centre (2.6 miles south-east) and Strathmartine Castle (1.5 miles north). Green spaces nearby include Balgay Hill and Trottick Mill Ponds.

Map of St Marys © OpenStreetMap contributors

FAQs: St Marys

Do you cover business parks and estates near St Marys, such as Dryburgh Industrial Estate?

Yes, sites like Dryburgh Industrial Estate are within our area, along with the rest of St Marys. Send details of the unit and the work through our quote form for a quick quote.

Is hospital work, at somewhere like Kings Cross Hospital, something you do?

Yes, hospitals are one of the sectors we cover. We follow the site’s permits, sign-in and infection-control procedures in every area.

What’s the difference between an expansion joint and a movement joint?

Put simply, it’s a planned break in a wall, slab or deck so the materials can move. Expansion joint is a name often used for the same thing and both need a flexible seal.

Can one quote cover more than one building?

Yes. We take on portfolio and planned maintenance work, with each site phased to suit its occupants.

Can you work while the building is occupied?

Yes, as long as we plan it. We agree a sequence with your contact so just one area at a time is disrupted.

When can the area be used after sealing?

That comes down to the sealant and the temperature. Some take light use quickly, others need longer to cure, so we will confirm the curing time on the day.

Will you quote for a small job?

Single areas, one-off repairs and whole buildings are all quoted the same way: details, then a fixed price, then sealing, then a 12-month guarantee.

Looking after the joints

After handover, a little attention goes a long way:

  • Keep traffic off new joints until the cure time is up
  • Inspect movement joints alongside other routine building checks
  • Treat a small split as a warning, not a cosmetic issue
  • Plan racking layouts so feet don’t land on a joint

On car parks, winter clearance can damage deck joint sealant. Lifting the blade at each joint avoids tearing the bead and a look at the joints after winter catches any damage.

Unsupported floor joint edges spall under forklift and pallet-truck wheels. Broken arrises jolt trucks, loads and drivers. Keeping the filler or sealant sound protects the floor.

Accreditations

Trusted. Accredited. Insured.