Highland · Scotland
Remedial sealant & repairs in Keiss, Highland
Removing failed, mouldy or leaking sealant and putting it right for householders, landlords and businesses in Keiss. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Sealant applied over old sealant that has lifted
- Dark patches showing through the sealant
- Torn expansion joints
Your questions about remedial sealant in Keiss
Do you cover Keiss for remedial sealant?
Yes. We work across all of Scotland, and Keiss is part of that. Just drop us a line at info@mrmastic.co.uk with a few details of the job.
Is remedial sealant in Keiss guaranteed?
All our work, in Keiss and everywhere else, comes with a 12-month guarantee. We’re fully insured, and an ARBOMaster approved applicator.
Can I choose the sealant colour?
We help you choose a colour that suits, from white and clear to greys and other shades. The product needed can limit the range.
Can I do it myself?
That depends on the joint. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional, while a short indoor joint may be within reach.
Do you hold any approvals?
Yes. We hold ARBOMaster approved applicator status and we’re fully insured too.
Can tenants book the work?
Yes. Check with your landlord; we can send the quote to them too.
Can landlords and businesses book you?
Yes. Domestic, commercial and hotel work are all part of what we do, and we’re fully insured.
How do I get a quote for remedial sealant in Keiss?
The cost depends on the size of the job, access and how much old sealant has to come out. Ask us for a quote.
Remedial sealant in Keiss
A joint that keeps failing normally has a reason. A tray that moves, a worktop that isn’t fixed, the wrong sealant or water getting in elsewhere will defeat even a perfect bead. Finding that cause comes before any new sealant. We work on failed movement joints, shrunken worktop sealant and expansion joints, and common reasons people get in touch are beads that never stuck properly and black mould underneath the bead.
In and around a place like Keiss, homes range from older stone-built properties to newer houses. Where a building moves, cracked grout and split sealant are normally the first signs.
A one-year guarantee comes with the work, just as it does everywhere we cover.
- Location
- Keiss (KW1)
- Wider area
- Highland
- Guarantee
- 12 months on all our work
- Quote
- A clear quote up front
- info@mrmastic.co.uk
- Last updated
- 26 October 2026

Keeping the joints in good condition
Looking after new joints is easy:
- Don’t wait for a small gap to become a leak
- Get the cause of a repeat leak found before resealing
- Run the fan after every shower
- Check trays and worktops do not move
Keep the room ventilated: use the extractor or open a window after showering.
Signs to act on: peeling layers, mould showing through the bead, leaks after showering or cracks in a movement joint. Any of them means it’s time for remedial work.
Why act early in Keiss
Remedial work takes longer than a straight reseal, but rarely a lot: it takes a few hours for most joints, depending on how much old sealant has to come out. It’s far less disruption than resealing the same joint again and again. In a place like Keiss, small leaks are easy to put off, but water through a failed joint keeps working away until it’s fixed.
What it costs depends on the size of the job, how much old material has to come out and access to the work. We give a clear quote before we start, so you know where you stand.
What you get with us
- We never seal over old sealant
- More than 20 years in sealant work
- We are fully insured
- One-year guarantee on every job
See how sealant jobs are priced and our reviews.
How we quote for remedial sealant
For a quick quote, just ask. The main things that affect it are:
- Whether old sealant or filler has to be cut out
- The product the joint needs
- How easy the joints are to reach
- How much there is to do
Combining jobs into one visit is usually more efficient than separate visits, so tell us about everything that needs sealing. We will send you a clear quote for the lot.
Asking for a quote
You do not need to know the technical terms. It helps if you can tell us:
- Access, such as stairs, a lift or height
- A few photos by email, if you can
- The rough size of the job
- Whether it has been sealed before
It all starts with a short chat. Describe the problem, the location and the size of the job, and we will talk you through what we’d do. Whenever you are ready, send an email to info@mrmastic.co.uk.
What remedial sealant looks like in Keiss
Keiss is close to the coast. Near the coast, holiday lets and guest houses can see bathrooms used by one guest after another, which wears sealant and grout out faster than in a quiet home. 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.
In and around Keiss, as anywhere, good remedial sealant starts with a clean, dry, properly prepared joint.
Keiss is about 15 miles east of Thurso, in Highland. Keiss gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a 12-month guarantee. Our Highland coverage runs to 253 places, and Keiss is one of them.
We work across the KW1 postcode area for remedial sealant and the streets around it. Local streets include High Street, South Street and Robertson Crescent, and we cover them all. If you’re just outside Keiss, we cover Reiss (4 miles south), Ackergillshore (4 miles south), Hastigrow (5 miles west), Staxigoe (6 miles south-east) and Haster (6 miles south). Remote and island addresses need a little more planning, so tell us where you are when you ask for a quote.
Near you in Keiss
Well-known places in the area include Caithness Broch Centre (2 miles north-east) and Keiss Castle (0.7 miles north-east). Open spaces near Keiss include Loch of Wester.
Can I do it myself?
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is.
What we can’t put right
It helps to know what we can’t do too:
- A bath, tray or worktop that moves until it’s properly fixed
- Leaks from a shower valve, waste or pipework (a plumber’s job)
- Tiles that have come away from the wall
If in doubt, email us at info@mrmastic.co.uk and we will say what we think.
Where we work in Keiss
- Expansion joints
- Leaking tray & enclosure joints
- Mouldy bath & shower sealant
- Botched or over-sealed joints
- Failed movement joints
- Shrunken worktop sealant
Also in Keiss
How it works
A visit follows a simple pattern: we check the joints, protect the area around them, do the work and clear up. It normally takes a few hours for most joints, depending on how much old sealant has to come out. Around Keiss, 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 start by checking the joint for movement, leaks and the reason it failed.
- Every layer of old sealant is cut and cleaned out.
- We clean the joint, treat any mould and let it dry.
- 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.
Before we arrive
- Tell us about access, such as stairs, a lift or high-level joints
- Where the joints are inside, avoid wetting them before we arrive
- Keep children and pets away from the work area
Get a quote
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.
Advice
When to call us in Keiss
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.
Signs it’s time to call us include:
- Wide, uneven beads that look worse than the old ones
- Sealant applied over old sealant that has lifted
- Floor or wall movement joints that have failed
- Sealant peeling off a dusty or damp surface
If you live in an older home near Church of Scotland, timber floors under older bathrooms flex, so joints need a sealant that moves with them.
Before you book anyone
- What guarantee comes with the work
- How the joint is cleaned and prepared
- Which colour the sealant will be
- Which sealant they’ll use, and why
