Na h-Eileanan Siar · Scotland
Crosbost Remedial Sealant
Our applicators work in Crosbost on removing failed, mouldy or leaking sealant and putting it right. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.
- Dark patches showing through the sealant
- Caulk or the wrong sealant used in a wet area
- A second bead peeling off the first
What the job involves on each surface
Leaking trays & enclosures
Where the joints are the problem, every bead is stripped and resealed with anti-fungal sanitary silicone, tray edges and screen profiles included.
Windows & doors
Frames resealed over the top end up with hard, layered mastic. All of it is cut out and the frame and wall cleaned.
Remedial sealant in Crosbost, done properly
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 have to come out. We work on botched or over-sealed joints, failed movement joints and shrunken worktop sealant, and the jobs we see most are over-sealed joints coming away and sealant peeling off a dusty or damp surface.
Across smaller places in Scotland, homes range from stone and harled cottages to newer houses. Older buildings can move a little, and that shows first in cracked grout and split sealant.
All our work is covered by our 12-month guarantee.
- Place
- Crosbost (HS2)
- Region
- Na h-Eileanan Siar
- Guarantee
- A year, on every job
- Price
- A clear price before we start
- info@mrmastic.co.uk
- Updated
- 26 October 2026
When something else is needed
New sealant can’t fix everything, and we’d rather say so up front. Sealant won’t put right:
- A tray or worktop that needs refixing first
- Sealant in an older building that needs testing for asbestos first
- A cracked shower tray or bath (that needs repair or replacing)
If in doubt, send an email to info@mrmastic.co.uk and we will say what we think before booking.
Surfaces we seal
- Mouldy bath & shower sealant
- Expansion joints
- Failed movement joints
- Leaking tray & enclosure joints
- Shrunken worktop sealant
- Botched or over-sealed joints
Common problems we fix in Crosbost
Silicone only bonds to surfaces that are clean and dry. Residue, moisture or dust left in the joint weaken the bond, so it starts lifting sooner than it should.
People generally contact us when they notice one of these:
- Movement joints that have split or pulled away
- Sealant applied over old sealant that has lifted
- Products that weren’t meant for the joint
- Repeat leaks from the same joint
For jobs in and around Crosbost, choosing the right material for each joint is as important as a tidy finish.
What to look for in a quote
- What the cure time is
- Is VAT in the price?
- Whether they’re fully insured
- How hidden problems are handled
Other services in Crosbost
Quotes for remedial sealant in Crosbost
Every job gets its own quote. This is what makes a difference:
- Working hours on commercial sites
- The type of sealant required
- The old material and how stubborn it is
- How much there is to do
The cost depends on the amount of work, how hard the old material is to remove and how easy the joints are to reach. You’ll have a clear quote before any work starts, so you know where you stand.
What to tell us for a quote
Photos by email are helpful but not essential. Try to tell us:
- The problem you’ve noticed
- Photos by email, if that is easy
- How we’d reach the joints
- If it’s domestic, commercial or a hotel
If you’re in Crosbost and need remedial sealant, email us at info@mrmastic.co.uk. Tell us what the problem is and where, and you’ll get a clear quote before any work starts.
Can I do it myself?
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
Questions from Crosbost
Do you cover Crosbost for remedial sealant?
Yes. We work across all of Scotland, and Crosbost is part of that. Just email us at info@mrmastic.co.uk with a few details of the job.
Do you cover smaller places like Crosbost?
Yes. Crosbost is within the area we cover, which takes in towns, villages and rural addresses. We work across all of Scotland, including the islands, where work is planned around ferry crossings. Just mention lanes, gates or anything else about the route when you book.
Where are you based?
Our base is Crawley, with over 20 years’ experience. Our area covers South East England, London and Scotland.
Will you leave a mess?
Not at all. We work neatly, protect the area around the joints and tidy up afterwards.
When is the sealant fully cured?
Different products cure at different speeds, so follow the cure time we give you.
Is there any odour?
Possibly a little. It fades as the sealant cures.
Do you take out the old sealant first?
Yes. We cut out all the old sealant and clean the joint before applying anything new.
Do you guarantee remedial jobs?
Yes. You get our 12-month guarantee, and we are fully insured.
What happens on the day
A visit follows a simple pattern: we check the joints, protect the area around them, do the work and tidy away. Most jobs take a few hours, depending on how many layers have to come out. Outdoor work around Crosbost 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 look at how the sealant has failed and check for movement or a leak path.
- We strip the joint completely, removing any layers below.
- Next, any mould is treated and the joint dried.
- We use the right backing and sealant for any joint that moves.
- The new joint is tooled neatly and we explain anything else we found.
Getting ready for the visit
- Where the joints are inside, avoid wetting them before we arrive
- Tell us about access, such as stairs, a lift or high-level joints
- Clear the area around the work
Ask for a quote
Want a quote for remedial sealant? Please email us at info@mrmastic.co.uk and tell us about the job. You’ll know what we plan to do, and what it will cost, before any work begins.
Related advice
What remedial sealant looks like in Crosbost
Crosbost is close to the coast. Coastal homes, holiday lets and guest houses can see heavy bathroom use in busy months, which wears sealant and grout out faster than in a quiet home. Island jobs need planning around ferries and the weather, so the more notice, the better.
Around Crosbost, as everywhere, remedial sealant is only as good as the preparation behind it.
Crosbost is in Na h-Eileanan Siar. Anywhere in HS2, our applicators can take on remedial sealant. Across Na h-Eileanan Siar, we cover 87 places, and Crosbost is one of them.
Every address in HS2 is covered for remedial sealant, from the main roads to the quietest streets. We also cover the places around Crosbost: North Lochs (1 mile west), Liurbost (1 mile west), Lacasaidh (4 miles south-west), Sandwick (5 miles north-east) and Stornoway (5 miles north). If you’re somewhere remote, a little more planning is needed.
Near you in Crosbost
Other landmarks nearby include Western Isles Hospital (5.9 miles north). The countryside around Crosbost includes Loch na Craoibhe and Nisreaval.
Why it’s worth doing now in Crosbost
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 an older home around Crosbost, damp from a failed joint can get into timber and plaster, which is a far bigger job than the sealant.
We don’t show prices on the website, because each job is priced on what it involves. For a quick quote, please drop us a line at info@mrmastic.co.uk.
What you get with us
- A sealant colour to suit the surroundings
- White, clear, grey or coloured to suit, where the product allows
- Every job guaranteed for a year
- Quality sealants from Arbo and Everbuild