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

Sealant specialists in St Marys

Commercial sealant work in St Marys for contractors, FMs and building owners: sealant work for offices, shops, hotels and other commercial buildings, with a fixed quote first.

  • Greasy, split joints in a kitchen or tea point
  • Layers of sealant, all of them failing
  • External beads that have gone brittle and cracked
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
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Signed off, with 12 months’ guarantee.
South East, London & Scotland
CHAS accredited
£5m public liability

Commercial sealant contractors near St Marys

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

How we handle commercial sealant contractors in St Marys

We have applied sealant on commercial sites for over 20 years, and the paperwork side is in order: we’re CHAS accredited and a Constructionline member, our applicators hold CSCS cards, and we carry five million pounds of public liability insurance. If your site needs RAMS, an insurance certificate or CSCS details, say so and we will confirm with the quote. If you’re dealing with external beads that have gone brittle and cracked and sanitary sealant that has gone black and patchy, we can put it right. Whoever orders the work in St Marys, the brief is usually the same: a clear scope, tidy work and joints that don’t fail again.

In St Marys, as anywhere, the first joints to go are usually the ones that work hardest: frame perimeters in the sun, floor joints at doorways and anything that gets wet every day.

Much of the older commercial stock in Scotland’s cities is sandstone or, in Aberdeen, granite. Sealing against stone means a neutral-cure sealant that leaves the stone unmarked and, where the joint is seen, a colour that blends.

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.

The Mastic Doctor team beside their liveried vans in front of an office building
Where
St Marys (DD3, DD2)
Wider area
Dundee
Guarantee
A 12-month guarantee
Quotes
Quoted before any work starts
Phone
01277 525 020
Page updated
3 November 2026

Different surfaces, different methods

Window and door perimeters

Internally, window boards and frame edges often have decorators’ caulk or silicone that has cracked. We use a paintable product where decorating follows and a silicone where it doesn’t.

Washrooms and toilets

Washroom joints take water, cleaning chemicals and constant use. We cut out mouldy or split beads and reseal in anti-mould sanitary silicone, phasing the rooms so not every toilet is closed at once.

When something else is needed

A proper diagnosis includes knowing what sealant can’t do. You will hear from us if the cause turns out to be any of the following:

  • Leaking roofs, gutters or flat-roof membranes (those need a roofer)
  • Structural cracks or movement the joints weren’t designed for
  • Old mastic that tests positive for asbestos

If you’re not sure, just give us a call on 01277 525 020 or email a schedule or drawings and we’ll give you a straight answer before you book.

Joints and surfaces we work on

  • Movement joints in walls and floors
  • Floor and threshold joints
  • External facade joints
  • Washrooms and tea points
  • Kitchen worktops and splashbacks
  • Window and door perimeters

When to bring in a specialist

For a quick touch-up, site staff may be fine, but larger jobs are different: a specialist brings efficiency, a consistent finish and a 12-month guarantee.

Paperwork matters too. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and our CSCS-carded applicators are used to working under those rules.

Common questions from St Marys clients

Is Dryburgh Industrial Estate, near St Marys, within your area?

Yes. Our area takes in St Marys and its surroundings, with estates and business parks such as Dryburgh Industrial Estate included. Photos and a short description are enough for a first look.

Must a hotel around St Marys close while you work?

Almost never. The work is phased so most rooms stay available. Tell us your quiet periods and access windows and we’ll plan around them.

Can you supply RAMS and insurance details?

We’ll confirm the paperwork you need, such as RAMS, an insurance certificate or CSCS details, with the quote. We’re CHAS accredited and a Constructionline member, with five million pounds of public liability insurance.

What do you need from us to quote?

Send what you have, even a few photos and rough lengths. We follow up with questions or a visit where needed.

Will the building have to shut during the work?

We phase the work so parts of the building stay open. Tell us your site hours and access windows and we will plan around them.

Which sealant will you use?

If the job is specified, we follow the specification. Otherwise, we recommend a product to suit the joint’s movement, the substrate and the conditions, following the manufacturer’s guidance.

When is resealing likely to be due?

There’s no fixed lifespan: movement, exposure, cleaning, traffic and the product all play a part. Treat them as maintenance items and inspect them regularly.

Commercial sealant contractors around St Marys: points for this area

St Marys sits close to the coast, within about 3 miles. For shops, hotels and offices, that means frontage and frame joints that weather faster than they would inland. Sea-facing elevations are usually where failed joints show first. The 3 miles around St Marys take in at least three named trading estates, business parks or retail parks. Tenant changes on such sites bring fit-outs, and fit-outs bring new joints.

Shops and cafés around stations like Invergowrie station (to the south-west of St Marys) trade from early, so work is timed around them. Units at places like Kingsway West Retail Park (to the south-east of St Marys) are refitted as brands change, and the joints have to suit each new scheme. If you have premises on more than one site, say at Dryburgh Industrial Estate and Dovercourt Commercial Park, one contractor and one quote can cover both.

St Marys is about 2 miles north-west of Dundee, in Dundee. Looking for commercial sealant contractors in St Marys? We can help, as we do across Dundee. Our Dundee coverage takes in 28 places, large and small.

Postcode districts covered here: DD3 and DD2 for sealant joints. Streets here include Troon Road, Troon Avenue and Gullane Road, and sites on any of them can send details for a fixed quote. If your building is just outside St Marys, we cover Ardler (1 mile south), Dryburgh (1 mile south), Camperdown (1 mile south-west), Lochee (1 mile south) and Birkhill (2 miles west). Bigger towns within reach include 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).

Near you in St Marys

Around St Marys, our work takes us to commercial buildings near Cox Branch Library and Balgay Hill and the streets around them. The closest station to St Marys is Invergowrie station, roughly 3 miles south-west of the centre. A little further out are Wellgate Centre (2.6 miles south-east) and Strathmartine Castle (1.5 miles north). Not far away are Balgay Hill and Trottick Mill Ponds.

Map of St Marys © OpenStreetMap contributors

How the quote is worked out

Each job is priced on its own details. The things that drive the figure:

  • Whether old sealant has to be cut out first
  • Distance, for remote addresses
  • Any access equipment needed
  • Phasing around occupants

Larger quantities, tricky access or phasing all shape the price. Site requirements like inductions and permits play a part as well.

What we need to price the job

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

  • Your programme or deadline
  • The asbestos register, for older buildings
  • The product your specification calls for
  • Anything awkward about access or site hours

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

How a job runs

When we get to site, we report to your site contact and complete whatever induction the building runs. Floors, finishes and fittings next to the joints are covered before any cutting starts, with the work itself typically taking as long as the agreed scope needs, from a single visit to a programme spread over several weeks. In a Scottish city, kerbside space and loading need planning, especially near the centre. Shared closes, stairs and the property factor may need to be part of the plan.

  1. First, details come to us: photographs, drawings or a schedule of the areas.
  2. We work out why the joints have failed and fix a quote for the agreed scope.
  3. Site hours, access windows and the order of areas are agreed before we start.
  4. Failed sealant is cut out and each joint cleaned back to sound, dry faces.
  5. The depth is set, primer is used where the maker calls for it, and the fresh bead is applied and tooled.
  6. Each area is inspected, signed off and backed by our 12-month guarantee.

Before we start on site

  • Arrange parking or a loading space
  • Send asbestos survey details if the building is pre-2000
  • Send any specification or drawings in advance

Ask for a quote

Tell us about the building, the joints and when you need the work done, and a fixed quote will follow. The easiest way is to ring 01277 525 020 or email us.

Get a price

Read more

Why act early in St Marys

Putting off a reseal typically moves the cost rather than avoiding it. Water past a frame perimeter or a washroom joint can reach plasterboard, insulation, floor coverings and the ceiling below. Resealing while only the sealant has failed keeps the job small. Failed sealant in a shared building in St Marys can affect more than one owner. Fixing it promptly keeps repairs small.

What a job costs comes down to how many linear metres there are, how much old material needs removing and how the joints are reached. Call for a quote once you have the details.

Why appoint us

  • Work to your specification and the manufacturer’s guidance
  • Matching to RAL references, product permitting
  • Failed material removed, not covered up
  • A Constructionline member, so easy to vet

Take a look at our cost guide and our accreditations.

Accreditations

Trusted. Accredited. Insured.