Midlothian · Scotland
Arniston Remedial Sealant
Removing failed, mouldy or leaking sealant and putting it right for householders, landlords and businesses in Arniston. Fully insured, ARBOMaster approved and guaranteed for a year.
- A shower that leaks however often it’s resealed
- Black mould underneath the bead
- Gaps opening along the back of the worktop
How we handle remedial sealant in Arniston
Movement and expansion joints fail when the sealant cannot stretch. We cut out the failed sealant and set the depth with backing, then a flexible sealant matched to the movement goes in. We work on botched or over-sealed joints, mouldy bath & shower sealant and expansion joints, and the jobs we see most are decorators’ caulk around a bath or shower and leaks that keep coming back after resealing.
Across smaller places in Scotland, homes range from stone and harled cottages to newer houses. Where a building moves, cracked grout and split sealant are normally the first signs.
Our work is backed for twelve months.
- Location
- Arniston (EH23)
- Region
- Midlothian
- Guarantee
- One year on every job
- Quotes
- A clear quote up front
- info@mrmastic.co.uk
- Updated
- 26 October 2026

Common questions in Arniston
Do you cover smaller places like Arniston?
Yes, smaller places are covered as well as towns. Our work covers the whole of Scotland. Let us know about access, parking and anything unusual about getting there when you book.
I let a flat near Gorebridge station. Can you help?
Yes, landlords and agents are among the people we work for. Just email us at info@mrmastic.co.uk with the address and what needs doing, and we will send you a clear quote.
What does remedial sealant cost?
There’s no set price, as it depends on the job: its size, the old material, access and the product needed. You will get a clear quote before any work starts.
Can old silicone be taken off without scratching the tiles?
Yes. We take our time over removal, especially on acrylic, enamel and uPVC.
Can you do several jobs on one visit?
Yes, we can. Several rooms, windows or areas can go on one quote.
Will the old sealant be removed?
Yes. All of the old material is cut out and the joint cleaned before applying anything new.
Does remedial work come with a guarantee?
Yes, with our 12-month guarantee. Where we’ve flagged another fault, it needs fixing for the joint to last.
Will there be a smell?
Possibly a little. Any smell clears as the sealant cures.
Work for landlords, hotels and businesses
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance that we can handle for you.
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. We can quote for more than one property at once.
Other services in Arniston
The process
Before we leave, we go over the finished joints with you and explain the cure time. The work normally takes a few hours, depending on how many layers have to come out, depending on how much there is to do. Around Arniston, distance and access matter more than parking. Tell us how to find the property and how to reach the work, and the visit is planned around that.
- We protect the surfaces around the joint.
- Every layer of failed sealant is stripped out.
- We clean and degrease the joint and look for signs of movement or water.
- Once dry, a suitable sealant is applied and tooled.
- You get the cure time and our view on why the joint failed.
Getting ready for the visit
- Try not to wet indoor joints just before the visit
- On commercial sites, let us know about site rules
- Mention any leaks or damp you’ve noticed
Ask for a quote
To get a quote, email us at info@mrmastic.co.uk with the location and a short description of the problem. We’ll give you a clear quote before any work starts.
Related advice
DIY versus a professional finish
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Why act early in Arniston
A joint that has failed twice will fail again unless the cause is dealt with. Taking time to find the cause, whether it’s movement, a leak or the wrong product, is what stops it happening again. Exposed walls in smaller Scottish places take a lot of wind and rain, and once water gets behind a failed joint, damp in stone or harled walls is slow to dry out.
There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote.
Why book with us
- Full insurance on every job
- Any old sealant cut out fully, not covered over
- Experience in homes, commercial sites and hotels
- Trusted Arbo and Everbuild sealants
What we can’t put right
In fairness, there are a few things sealant won’t fix:
- Plumbing leaks behind walls or under trays
- Cracks in the fitting rather than the joint
- Older mastics that may need an asbestos check before removal
If in doubt, send an email to info@mrmastic.co.uk and we’ll say what we think before booking.
Where we work in Arniston
- Botched or over-sealed joints
- Leaking tray & enclosure joints
- Mouldy bath & shower sealant
- Shrunken worktop sealant
- Failed movement joints
- Expansion joints
Aftercare tips
Joint life depends on how it’s used and looked after. We suggest:
- Act on a lifting corner straight away
- Clean sealant with mild products only
- Check ceilings under showers for marks
- Report a tray that rocks or a worktop that lifts
Where we have pointed out another fault, have it put right, or the new joint may fail again.
Mould trapped under over-sealed joints spreads unseen. When it finally shows, the whole bead needs to come out.
Bathrooms and kitchens in Arniston
Scotland’s water is generally soft, so sealant and grout see less limescale than in much of England. Mould is another matter: a bathroom that stays damp still turns sealant and grout black. In Scotland, private landlords have to meet the Repairing Standard, which includes keeping fixtures and fittings in reasonable repair. Failed sealant around a bath or shower is worth sorting between tenancies.
Homes close to Hunterfield Road Church include some older properties, and timber floors under older bathrooms flex, so joints need a sealant that moves with them.
Arniston is about 4 miles south-east of Bonnyrigg, in Midlothian. Whether you are in the middle of Arniston or further out, remedial sealant is available for homes and businesses alike. Our Midlothian coverage runs to 33 places, and Arniston is one of them. Our Edinburgh page covers work nearby.
Here we cover the EH23 postcode area for remedial sealant. Remedial sealant is available to properties on Bellsmains, Cadwell Path and Cadwell Walk. We also cover the places around Arniston: Birkenside (1 mile north), Gorebridge (1 mile north), North Middleton (1 mile south-east), Carrington (2 miles west) and Gowkshill (2 miles north). We also work in nearby towns such as Bonnyrigg (4 miles north-west), Dalkeith (4 miles north), Penicuik (7 miles west), Loanhead (5 miles north-west), Mayfield (3 miles north) and Shawfair (7 miles north).
Landmarks near Arniston
The nearest railway station is Gorebridge station, roughly 0.7 miles north of the centre. A little further out are Midlothian Community Hospital (3.8 miles north-west) and Catcune Castle (0.5 miles east). For a walk, there’s Edgelaw Reservoir.
When to call us in Arniston
One of the commonest remedial jobs is sealant on top of sealant. New silicone can’t stick to the old bead, so the new layer peels, and damp and mould settle between them.
Any of these means the joints need attention:
- Black mould underneath the bead
- Wide, uneven beads that look worse than the old ones
- Decorators’ caulk around a bath or shower
- Floor or wall movement joints that have failed
Rented homes near Gorebridge station change hands often, and failed or mouldy sealant is worth putting right between tenancies, before it turns into a leak.
Questions to ask before you book
- How hidden problems are handled
- How the colour is chosen
- How the joint is cleaned and prepared
- What product goes in the joint
