South Lanarkshire · Scotland
Crawfordjohn Remedial Sealant
Problem with your failed sealant joints in Crawfordjohn? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Products that weren’t meant for the joint
- Gaps opening along the back of the worktop
- A shower that leaks however often it’s resealed
Remedial sealant for homes and businesses in Crawfordjohn
Some sealant jobs are not a simple reseal, because someone has already had a go. Silicone laid over silicone, smears across tiles, the wrong product in a moving joint or mould trapped underneath all need stripping out. If you’re dealing with worktop sealant that has shrunk and split and sealant peeling off a dusty or damp surface, we can put it right, on leaking tray & enclosure joints, mouldy bath & shower sealant and expansion joints alike.
In and around a place like Crawfordjohn, homes range from older stone-built properties to newer houses. Older buildings can move a little, and that shows first in cracked grout and split sealant.
Every job comes with a one-year guarantee, wherever you are in South Lanarkshire.
- Where
- Crawfordjohn (ML12)
- Wider area
- South Lanarkshire
- Cover
- One year on every job
- Quotes
- Quoted before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Do you need remedial sealant in Crawfordjohn?
Even good sealant ages. Mould grows into the silicone, the surface hardens and the bead shrinks, faster where ventilation is poor. Then the only fix is removal and a new bead.
The problems people generally mention when they call include:
- Beads that never stuck properly
- Decorators’ caulk around a bath or shower
- Black mould underneath the bead
- Wide, uneven beads that look worse than the old ones
In and around Crawfordjohn, as anywhere, good remedial sealant starts with a clean, dry, properly prepared joint.
What your quote should include
- Which colour the sealant will be
- How the surfaces are prepared before sealing
- Is VAT in the price?
- Which sealant they’ll use, and why
What the job involves on each surface
Mouldy bath & shower sealant
Mould can sit behind the silicone, not just in it. We treat the exposed joint once the bead is out so the new sealant starts clean.
Worktops & kitchens
If a worktop moves when you lean on it, the sealant will keep splitting. That needs refixing before resealing, and we’ll tell you if we find it.
Should I try it myself first?
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
What else we do in Crawfordjohn
What affects the cost of remedial sealant
Every job gets its own quote. This is what makes a difference:
- How many rooms, windows or areas are involved
- How easy the joints are to reach
- Any working-time requirements on site
- Whether there’s mould to deal with
What it costs depends on how much there is to do, how much old material has to come out and access to the work. You’ll have a clear quote before any work starts.
Helping us quote
When you call or email, it’s useful to know:
- Access, such as stairs, a lift or height
- A few photos by email, if you can
- If it’s domestic, commercial or a hotel
- Roughly how big the job is
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is. Whenever you are ready, send an email to info@mrmastic.co.uk.
Bathrooms and kitchens in Crawfordjohn
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. Private landlords in Scotland must be registered and meet the Repairing Standard, which includes keeping fixtures and fittings in reasonable repair. Tired, leaking sealant is worth putting right before a new tenant moves in.
If you live in an older home near Crawfordjohn Parish Church, timber floors under older bathrooms flex, so joints need a sealant that moves with them.
Crawfordjohn is about 16 miles south of Carluke, in South Lanarkshire. Anywhere in ML12, our applicators can take on remedial sealant. Crawfordjohn is one of 139 places in South Lanarkshire where we work. Our Glasgow page covers work nearby (32 miles or so).
Work in ML12 is quoted and booked the same way as anywhere else. Streets in the area include Main Street, The Loaning and Cross Road, all of which we cover. Other places close to Crawfordjohn include Abington (3 miles east), Douglas (5 miles north-west), Roberton (5 miles north-east), Crawford (5 miles east) and Glespin (5 miles north-west). Within a short drive, we also cover Lanark (12 miles north), Lesmahagow (11 miles north-west), Biggar (13 miles north-east), Kirkmuirhill (13 miles north-west), Blackwood (14 miles north-west) and Coalburn (8 miles north-west).
Around Crawfordjohn
Nearby you’ll also find Crawfordjohn Heritage Venture (under half a mile south) and Lady Home Hospital (5 miles north-west).
Why it’s worth doing now in Crawfordjohn
Spraying mould remover on a sealed-over joint doesn’t reach what’s underneath. Removal is the only way to get at it, and the joint treated and dried before resealing. In a place like Crawfordjohn, small leaks are easy to put off, but water behind a failed seal does the most damage when nobody’s watching.
A failed joint rarely gets cheaper to fix by waiting. If you are unsure, email us at info@mrmastic.co.uk for an honest opinion and a quote.
What you get with us
- Sanitary silicone with an anti-fungal additive in wet areas
- Quality sealants from Arbo and Everbuild
- We never seal over old sealant
- 180+ five-star Google reviews
Read our cost guide or what customers say.
Aftercare tips
So the new joints stay in good condition:
- Keep movement joints clear of mortar and paint
- Always have old sealant cut out, not covered
- Keep the room well ventilated
- Look for stains below bathrooms now and then
Watch the joint over the first few weeks, particularly where the original failure was caused by movement. Should anything change, send an email to info@mrmastic.co.uk.
A failing joint rarely gets better on its own. Every shower or downpour sends more water through, into floors, walls or ceilings. Early action keeps it to a sealant job.
Crawfordjohn: your questions answered
Is Crawfordjohn within the area you cover?
Yes, we do. Our work covers the whole of Scotland, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Is Crawfordjohn in your area for remedial sealant?
Yes. We work across all of Scotland, and Crawfordjohn is part of that. Just send an email to info@mrmastic.co.uk with a few details of the job, and we’ll give you a clear price.
Do you offer different sealant colours?
Yes. Sealants come in white, clear, grey and other colours for many products, and we’ll agree it with you first.
Should I try DIY first?
It depends on the job. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional.
What happens if the problem is the tray or the plumbing?
We check for that before we reseal. If the fault is elsewhere, you will know before any work is done.
Are you ARBOMaster approved?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we are part of it.
Can you remove old sealant without damaging the bath?
Yes. We cut and lift the old sealant with tools suited to the surface, then clean off the residue. We point out any damage that is already there.
Can you quote for more than one area?
Yes, and it often makes sense. Combining jobs makes good use of the visit.
The process
You do not need to clear the whole room or building, just the space around the work. Everything nearby is protected, and the job takes a few hours for most joints, depending on how much old sealant has to come out in most cases. Around Crawfordjohn, distance and access matter more than parking. Tell us how to find the property and how to reach the work.
- We start by checking the joint for movement, leaks and the reason it failed.
- All the old sealant comes out, including any layers underneath.
- The joint is cleaned, treated for mould and left to dry.
- Where the joint moves, backing and a flexible sealant suited to the movement go in.
- We tool the joint and tell you about anything else that needs attention.
How to prepare
- Mention any sign-in or site rules at work premises
- Let us know about stairs, lifts or work at height
- Keep children and pets away from the work area
Getting a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and add photos by email if you can.