Na h-Eileanan Siar · Scotland
Remedial Sealant in Nis
Remedial sealant for Nis and the surrounding area: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- Repeat leaks from the same joint
- Sealant peeling off a dusty or damp surface
- Mould trapped under a layer of silicone
What affects the quote in Nis
We don’t publish a price list. What we look at:
- Whether there’s mould to deal with
- How many areas need sealing
- Whether old sealant or filler has to be cut out
- Any working-time requirements on site
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed. Ask us for a quote and we’ll explain what it covers.
What we need to know
To help us quote quickly, let us know:
- Any previous sealing or DIY work
- What the problem is, such as mould, gaps, leaks or cracking
- Access, such as stairs, a lift or height
- If it’s domestic, commercial or a hotel
Getting a quote is simple: tell us what needs doing and where. Photos by email help us understand the job, and we’ll come back to you with a quote.
Remedial sealant in Nis
If a joint has been resealed and is leaking again, it’s worth a proper look. Send pictures when you email us at info@mrmastic.co.uk. If you’re dealing with sealant that came away because the surface wasn’t prepared and over-sealed joints coming away, we can put it right, whatever the surface.
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.
All our work comes with our one-year guarantee.

- Where
- Nis (HS2)
- Region
- Na h-Eileanan Siar
- Guarantee
- A year, on every job
- Quote
- Quoted before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Also near Nis
Other services in Nis
What sealant work cannot fix
Sealant isn’t the answer to every problem, and we’d rather say so up front. It won’t solve:
- A bath, tray or worktop that moves until it’s properly fixed
- Older mastics that may need an asbestos check before removal
- Failed tanking or loose tiles behind the sealant
If you’re not sure, just drop us a line at info@mrmastic.co.uk and we will give you a straight answer.
Where we work in Nis
- Mouldy bath & shower sealant
- Botched or over-sealed joints
- Expansion joints
- Shrunken worktop sealant
- Leaking tray & enclosure joints
- Failed movement joints
Common questions in Nis
Is remedial sealant in Nis guaranteed?
Every job comes with our one-year guarantee, wherever it is. We’re also fully insured and ARBOMaster approved.
Is Nis within the area you cover?
Yes. Nis 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.
What if resealing will not fix my leak?
We’ll tell you. If it’s a cracked tray, a failed valve or a leaking waste, resealing won’t fix it, so we will not pretend it will.
Can you fix a reseal that hasn’t worked?
Yes, usually. We check it’s the sealant and not the tray, valve or waste, then strip and reseal the joints.
Is there any odour?
There can be a smell while the sealant cures, which fades as it sets. Opening a window helps.
Can tenants book the work?
Yes. Check with your landlord; we can send the quote to them too.
Can I add another job to the visit?
Of course. Combining jobs makes good use of the visit.
Can I do it myself?
You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. We can always put it right if it fails.
Why it’s worth doing now in Nis
Mould under a bead can’t be reached by cleaning. The layers have to come out, and the joint treated and dried before resealing. Around Nis, water from a failed joint in an older stone home can soak into timber and plaster.
There are no prices on our website, because each job is priced on what it involves. Call for a quick quote and we’ll talk you through it.
Why book with us
- Colour picked to suit the job
- Arbo and Everbuild products
- Sanitary silicone with an anti-fungal additive in wet areas
- Tidy, careful work
Read what affects the cost or our reviews.
For landlords and businesses
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we’ll quote.
Looking after it afterwards
After the cure time, these simple habits help:
- Don’t add new sealant on top of old
- Check ceilings under showers for marks
- Keep bleach and abrasives off the bead
- Keep movement joints clear of mortar and paint
Ventilation keeps mould away from the new bead: use the extractor or open a window after showering.
Mould trapped under over-sealed joints spreads unseen. When it finally shows, the whole bead needs to come out.
The process
When we get to you, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. After that, the work takes a few hours for a typical bath or shower, longer where several layers have been applied. Somewhere like Nis may be a longer drive, and the journey is planned ahead. Mention tracks, gates, ferries or anything else about the route.
- Surrounding tiles, trays and frames are protected first.
- The botched or failed sealant is cut away completely.
- The joint is degreased and checked for movement and leaks.
- Once dry, a suitable sealant is applied and tooled.
- We give you the cure time and explain what caused the failure.
Getting ready for the visit
- On commercial sites, let us know about site rules
- Mention if the joints have been sealed before
- Mention any parking rules near the property
Ask for a quote
To get a quote, drop us a line at info@mrmastic.co.uk with the location and a short description of the problem. You will have a clear quote before we start.
Read more
Nis homes and their sealant
Nis is within about 2 miles of the coast. Coastal homes, holiday lets and guest houses can see heavy bathroom use in busy months, and sealant and grout that work that hard wear out sooner. Island jobs need planning around ferries and the weather, so the more notice, the better.
Schools such as Lionel School are buildings too, and washroom and kitchen sealant there needs the same care as at home, and schools and businesses are part of our work as well as homes. In and around Nis, as anywhere, good remedial sealant starts with a clean, dry, properly prepared joint.
Nis (Gaelic: Ness) is in Na h-Eileanan Siar. From the centre of Nis to the outskirts, we cover remedial sealant for every kind of property. Across Na h-Eileanan Siar, we cover 87 places, Nis among them.
Work in HS2 works the same way as everywhere else we cover. We also cover the places around Nis: Ness (1 mile south), Lionel (1 mile north-east), Cross (1 mile west), Lìonal (1 mile north) and Sgiogarstaigh (1 mile east). Island and remote addresses take a little more planning, so tell us where you are when you ask for a quote.
Near you in Nis
Well-known places in the area include Ness Heritage Centre (0.5 miles north). The countryside around Nis includes Loch Langavat.
Can I do it myself?
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
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.
