South Lanarkshire · Scotland
Thankerton Remedial Sealant
Our applicators work in Thankerton on removing failed, mouldy or leaking sealant and putting it right. Old sealant removed completely, joints prepared properly and every job guaranteed for a year.
- Thick, messy sealant smeared over tiles
- Sealant that came away because the surface wasn’t prepared
- Kitchen joints letting water behind the worktop
About our remedial sealant in Thankerton
A movement joint stops working when its sealant splits or sets hard. We cut out the failed sealant and set the depth with backing, then a flexible sealant matched to the movement goes in. We’re often asked to deal with a shower that leaks however often it’s resealed and kitchen joints letting water behind the worktop, on shrunken worktop sealant, mouldy bath & shower sealant and expansion joints.
A bathroom in a place like Thankerton gets the same daily wear as one in a city flat. Limescale is less of a problem with Scotland’s generally soft water, but mould still takes hold in damp sealant and grout.
You get a one-year guarantee, the same in Thankerton as everywhere else we work.
- Place
- Thankerton (ML12)
- Wider area
- South Lanarkshire
- Guarantee
- A year, on every job
- Quotes
- A clear quote up front
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Looking after it afterwards
So the new joints stay in good condition:
- Never seal over old silicone
- Clean sealant with mild products only
- Look for stains below bathrooms now and then
- Check trays and worktops do not move
Do not let anyone seal over it later. Over-sealing is how many remedial jobs start.
If a joint has failed more than once, stop resealing it. Get the cause found first, otherwise the next attempt will fail too.
Other services in Thankerton
What the job involves on each surface
Windows & doors
Failed frame mastic is often hard, cracked and in several layers. All of it is cut out and the frame and wall cleaned.
Leaking trays & enclosures
Repeat shower leaks often come from a tray that flexes or an enclosure sealed in the wrong place. Both are checked before we reseal.
Honest limits
A few problems are outside what sealant work can do:
- Old mastic in a building from before 2000 that should be checked for asbestos before it’s disturbed
- Plumbing leaks behind walls or under trays
- A tray or worktop that needs refixing first
If in doubt, email us at info@mrmastic.co.uk and we’ll say what we think.
Joints and surfaces we work on
- Shrunken worktop sealant
- Mouldy bath & shower sealant
- Botched or over-sealed joints
- Leaking tray & enclosure joints
- Failed movement joints
- Expansion joints
What affects the cost of remedial sealant
The quote reflects the job in front of us. We take into account:
- How many rooms, windows or areas are involved
- How much old sealant there is and how hard it is to remove
- Whether there’s mould to deal with
- Whether the work is at height
Combining jobs into one visit is generally more efficient than separate visits. You will get one clear quote for the whole job.
Asking for a quote
There’s no need for technical detail. It helps if you can tell us:
- Whether it’s a home or a business
- Pictures of the joints, sent by email
- The rough size of the job
- Any previous sealing or DIY work
Every job is quoted individually. Simply email us at info@mrmastic.co.uk and describe the job and send pictures if you have them.
Do you need remedial sealant in Thankerton?
Sealant needs a clean, dry surface with no grease on it. Soap film, dust, damp or old residue stop it gripping, so it starts lifting sooner than it should.
Signs it’s time to call us include:
- Kitchen joints letting water behind the worktop
- A shower that leaks however often it’s resealed
- Mould trapped under a layer of silicone
- Torn expansion joints
If you let a flat or house near Carstairs station, failed or mouldy sealant is worth putting right between tenancies, before it turns into a leak.
Before booking anyone
- How the colour is chosen
- Is the old sealant removed completely?
- How hidden problems are handled
- How the surfaces are prepared before sealing
Thankerton questions
Is Thankerton within the area you cover?
Yes, Thankerton is covered. We work across all of Scotland, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Do you work for landlords with property near Carstairs station?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. Just send an email to info@mrmastic.co.uk with the address and what needs doing, and we’ll give you a clear price.
How long should I leave it?
Different products cure at different speeds, so follow the cure time we give you when we finish.
Can I add another job to the visit?
Yes. More than one area can be quoted together.
Can you work on commercial sites?
Yes, regularly. We can plan bigger jobs in stages to suit the site.
Do I have to be there?
We need access to the joints, so we will agree that with you when we book. Indoors, that usually means someone at home.
My shower still leaks after a reseal. Can you sort it?
Yes, usually. We check it’s the sealant and not the tray, valve or waste, then the joints are stripped and resealed.
Should I try DIY first?
Some simple jobs can be done by a careful DIYer. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
What we do, step by step
Good joint work is mostly preparation, so that’s where we spend the time. Every joint is cleaned and dried before new material goes in. In total, it normally takes a few hours for a typical bath or shower, longer where several layers have been applied. Outdoor work around Thankerton depends on the weather, as sealant needs a dry surface, so an outdoor job can move if the forecast changes. Work indoors isn’t affected.
- We protect the surfaces around the joint.
- The botched or failed sealant is cut away completely.
- We clean and degrease the joint and look for signs of movement or water.
- New sealant goes in once the joint is dry, and is tooled smooth.
- You get the cure time and our view on why the joint failed.
Preparing for the visit
- For business premises, tell us about site rules or sign-in
- For indoor joints, keep the area dry beforehand if you can
- Keep pets and children clear of the area while we work
Ask for a quote
Call for a quick quote, or email us if that is easier. Tell us about the joints that need doing and we will explain what’s involved before giving you a price.
Read more
Remedial sealant around Thankerton
In Scotland, private landlords have to meet the Repairing Standard, which covers keeping fixtures and fittings in a reasonable state of repair. Failed sealant around a bath or shower is worth sorting between tenancies. Scottish Water supplies are generally soft, so limescale is less of a problem than in hard-water areas. But mould still grows into sealant and grout in a room that doesn’t dry out.
Homes close to Covington Parish Church include some older properties, and older homes can move a little, which is hard on rigid grout and tired sealant.
Thankerton is about 11 miles south-east of Carluke, in South Lanarkshire. Every kind of property in Thankerton can book us for remedial sealant, old or new, large or small. The work is guaranteed for a year. We cover 139 towns and villages across South Lanarkshire, from the larger towns to small villages. Edinburgh is on our list too, around 27 miles away.
Work in ML12 works the same way as everywhere else we cover. Remedial sealant is available to properties on Mill Road, Millands Road and Boat Road. We also cover the places around Thankerton: Covington (1 mile north), Pettinain (3 miles north-west), Libberton (3 miles north), Carstairs Junction (5 miles north) and Carnwath (5 miles north). Larger places within reach include Larkhall (15 miles north-west), Carluke (11 miles north-west), Lanark (6 miles north-west), Stonehouse (15 miles west), Lesmahagow (10 miles west) and Law (13 miles north-west).
Landmarks near Thankerton
Thankerton’s nearest station is Carstairs station, roughly 4.7 miles north. Nearby you’ll also find Covington School Museum (0.9 miles north) and Fatlips Castle (2.6 miles south).
Can I do it myself?
The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.
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.