Dundee · Scotland
Floor & skirting joints in St Marys, Dundee
Sealing skirting-to-floor joints, tiled floor movement joints and concrete floor joints for St Marys, backed by a 12-month guarantee. Ask us for a quote.
- Skirting caulk that keeps splitting
- Threshold joints that have opened or worn
- Perimeter joints in tiled floors filled with grout
How we handle floor joint sealing in St Marys
The gap under a skirting board often opens as floors and walls move with the seasons. Caulk tends to crack there, so we close it with a flexible sealant instead. If you’re dealing with failed seals where bathroom floors meet baths and panels and skirting that has pulled away from the floor, we can put it right.
In a Scottish city, commercial floors have movement joints and thresholds that wear under traffic. In St Marys, we cover those floor joints as well as plot mastic for developers.
Whatever the size of the job, you get the same 12-month guarantee in St Marys and across Dundee.
- Location
- St Marys (DD3, DD2)
- Wider area
- Dundee
- Cover
- A year, on every job
- Price
- Quoted before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Common questions in St Marys
Do you cover St Marys for floor joint sealing?
Yes. We work across all of Scotland, and St Marys is part of that. Just drop us a line at info@mrmastic.co.uk with a few details of the job, and we’ll give you a clear quote.
Is there a guarantee on floor joint sealing in St Marys?
All our work, in St Marys and everywhere else, comes with a 12-month guarantee. We’re also fully insured and ARBOMaster approved.
Can you quote for more than one area?
Yes. Just list everything you need.
Why has a gap opened under my skirting?
Floors and walls move a little with the seasons, and new floors settle. We close it with a flexible sealant that moves with the floor.
Can you add a movement joint to a tiled floor?
Often, yes, at the edges and along suitable lines. The grout is raked out and replaced with a flexible sealant in a colour to suit so the floor can move.
Do I have to be there?
We need access to the joints, so we’ll agree that with you when we book. Indoors, that generally means someone at home.
Do you take out the old sealant first?
Yes, always, and completely. New sealant won’t bond properly to old, so any old material comes out before anything new goes in.
Do you seal floor joints in bathrooms and kitchens?
Yes. The old joint comes out and a flexible silicone replaces it, colour-matched where it shows.
Leave it or put it right?
Putting new grout into a crack that keeps reappearing doesn’t last. The movement is still there, so the grout fails again. A flexible movement joint is the fix. For landlords in St Marys, damp and leaks can be a Repairing Standard issue, so it’s worth fixing failed sealant before a tenant reports it.
What you pay reflects the work, not guesswork. That’s why we ask a few questions first and agree the price before starting.
Why choose Mr Mastic in St Marys
- You choose the colour before work begins
- Neat joints and a tidy finish
- An ARBOMaster approved applicator
- Anti-fungal silicone where joints get wet
Take a look at what affects the cost and what customers say.
What the job involves on each surface
Commercial floors
Commercial floors take more traffic than most homes. The sealant is chosen for the traffic the floor takes.
Skirting boards
Gaps between skirting and floor open as timber and floors move. We seal them with a flexible sealant rather than caulk painted or coloured to match.
When something else is needed
We won’t take on work that will not last, so here’s what sealant cannot put right:
- Structural movement or subsidence
- Floors that are uneven or need levelling
- Damaged concrete that needs breaking out and repairing
If you are not sure, just email us at info@mrmastic.co.uk and we will give you a straight answer.
What we seal
- Commercial floors
- Thresholds
- Skirting boards
- Tiled floors
- Wet room & bathroom floors
- Concrete floor joints
What happens on the day
On the day, we start by going over the job with you, so you know exactly what we’re doing. Surfaces next to the work are protected before any work begins. The work usually takes a few hours, depending on the length of joint. In a city area like St Marys, parking may be by permit or pay-and-display, so tell us what’s nearby. For flats, mention the door entry system and any shared-stair arrangements.
- First, the floor type, the gap and the traffic are checked.
- We remove what’s in the joint now.
- The joint is vacuumed clean and backing fitted where needed.
- The chosen sealant goes in, coloured to suit the floor.
- The joint is tooled neatly and the cure time explained.
How to prepare
- Clear items away from the joints we’re working on
- Let us know about earlier repairs to the joints
- Mention any tricky access
Ask for a quote
There’s no standard price list, because every job is different. Instead, your job gets its own clear quote. To get started, email us at info@mrmastic.co.uk.
Advice
What floor joint sealing looks like in St Marys
Timber frame is common in newer Scottish homes, so skirting and sealant joints can open up as the building settles. Floors around Dundee run from suspended timber in older homes to concrete in newer houses and units, and each moves in its own way. That is why the skirting and threshold joints need a flexible seal.
Schools such as Lawside Academy are buildings too, and floor joints in corridors, halls and entrances take heavy wear and need resealing before the edges break up. If you let a flat or house near Invergowrie station, gaps at skirtings and thresholds are worth sealing between tenancies.
St Marys is about 2 miles north-west of Dundee, in Dundee. Across the DD3 area, we can carry out floor joint sealing at your property. 50 places in Dundee are on our list, from the larger towns to small villages.
Every address in DD3 and DD2 is within our area for floor joint sealing. If you need floor joint sealing at a property on Troon Road, Troon Avenue and Gullane Road or anywhere close by, we can help. If you are 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). We also work in nearby towns such as Broughty Ferry (6 miles east), Stobswell (3 miles south-east), Monifieth (7 miles east), Barnhill (6 miles east), Pitkerro (3 miles east) and Whitfield (3 miles east). St Marys is one of the larger places we cover in Dundee.
Around St Marys
We work in homes and buildings around Cox Branch Library and Balgay Hill, among other places. For rail, the closest station is Invergowrie station, roughly 3 miles south-west. Other landmarks nearby include Wellgate Centre (2.6 miles south-east) and Strathmartine Castle (1.5 miles north). For a walk, there’s Balgay Hill and Trottick Mill Ponds.
How we quote for floor joint sealing
For a quick quote, just ask. The main things that affect it are:
- Mould in or behind the old joints
- Any working-time requirements on site
- Access and height
- The old material and how stubborn it is
We do not show prices on the website, because the cost depends so much on the job itself. For a quick quote, please drop us a line at info@mrmastic.co.uk.
What we need to know
There’s no need for technical detail. Just tell us:
- Whether it has been sealed before
- If it’s domestic, commercial or a hotel
- Roughly how big the job is
- How we’d reach the joints
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and add pictures by email if you can.
Towns and villages near St Marys
What else we do in St Marys
Can I do it myself?
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
Landlords, agents and businesses in St Marys
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.
In hotels, rooms out of use cost money, so the work can be planned room by room around your bookings where we can. We have worked in hotels as well as homes and businesses.