Highland · Scotland
Janetstown Remedial Sealant
Problem with your failed sealant joints in Janetstown? We cut out the old, prepare the joints and apply the right sealant, with a 12-month guarantee.
- Over-sealed joints coming away
- Sealant that came away because the surface wasn’t prepared
- Products that weren’t meant for the joint
About our remedial sealant in Janetstown
A movement joint stops working when its sealant splits or sets hard. We cut out the failed sealant and set the depth with backing, then a flexible sealant matched to the movement goes in. If you are dealing with mould trapped under a layer of silicone and floor or wall movement joints that have failed, 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 usually the first signs.
Your job is guaranteed for a year, as with all our work.
- Where
- Janetstown (KW14)
- Region
- Highland
- Cover
- A year, on every job
- Price
- Quoted before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
When to call us in Janetstown
Water from somewhere else can ruin a good seal. A leaking valve, a failed waste or cracked grout feeds water behind the bead, and the sealant lifts or goes mouldy from underneath.
Common reasons people contact us include:
- Beads that never stuck properly
- Kitchen joints letting water behind the worktop
- A shower that leaks however often it’s resealed
- Black mould underneath the bead
If you look after a building such as Thurso High School, 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.
What your quote should include
- Who does the work, and how experienced they are
- What happens if the job turns out different
- What the cure time is
- Are they insured?
When something else is needed
Before booking, it’s worth knowing the limits:
- Older mastics that may need an asbestos check before removal
- Cracks in the fitting rather than the joint
- A tray or worktop that needs refixing first
If you are not sure, just drop us a line at info@mrmastic.co.uk and we’ll give you a straight answer before booking.
Surfaces we seal
- Shrunken worktop sealant
- Botched or over-sealed joints
- Leaking tray & enclosure joints
- Expansion joints
- Mouldy bath & shower sealant
- Failed movement joints
More services for Janetstown
Why it’s worth doing now in Janetstown
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. Out of town in Scotland, exposed walls take a lot of weather, and once water gets behind a failed joint, damp in stone or harled walls is slow to dry out.
No two jobs are quite the same, so each one gets its own quote. Size, access and the product the joint needs all play a part, and we will explain the quote if you ask.
Why Janetstown clients choose us
- 4.9 on Google from 180+ five-star reviews
- White, clear, grey or another colour, product permitting
- A 12-month guarantee on all work
- Trusted Arbo and Everbuild sealants
Read our cost guide or what customers say.
Different surfaces, different methods
Windows & doors
Some leaks around windows come from the wall or the window itself. We check the joint and tell you if it looks to be something else.
Mouldy bath & shower sealant
Black mould inside the bead will not scrub out. The sealant is cut out completely, the joint treated with a mould remover and dried before anti-fungal sanitary silicone goes in.
Remedial sealant in Janetstown: local notes
Janetstown is within about 3 miles of the coast. Near the coast, holiday lets and guest houses can see bathrooms used by one guest after another, and sealant and grout that work that hard wear out sooner. In Scotland, private landlords have to meet the Repairing Standard, which covers keeping fixtures and fittings in a reasonable state of repair. Tired, leaking sealant is worth putting right before a new tenant moves in.
Letting a property close to Thurso station? Then failed or mouldy sealant is worth putting right between tenancies, before it turns into a leak.
Janetstown is about 3 miles south-west of Thurso, in Highland. Every kind of property in Janetstown is covered for remedial sealant. Every job comes with our one-year guarantee. We cover 253 towns and villages across Highland, from the larger towns to small villages.
Jobs for remedial sealant in KW14 is quoted and booked the same way as anywhere else. Close by, we work in Glengolly (1 mile east), Westfield (2 miles south-west), Thurso (3 miles north-east), Scrabster (3 miles north) and Forss (3 miles north-west). If you’re somewhere remote, a little more planning is needed, so let us know when you get in touch.
Landmarks near Janetstown
For rail, the closest station is Thurso station, about 2.4 miles north-east of the centre. A little further out are Dunbar Hospital (1.8 miles north-east) and Thurso Heritage Museum (2.7 miles north-east). Not far away are Broubster Leans RSPB Reserve and Loch Calder.
Aftercare tips
Good habits help new joints last longer. A few tips:
- Find out why the sealant failed first
- Use a soft cloth, not a scourer, on silicone
- Check ceilings under showers for marks
- Have loose fittings fixed before resealing
Keep an eye on the joint at first, especially if movement was the problem. Should anything change, send an email to info@mrmastic.co.uk.
Don’t keep resealing the same joint. Get the cause found first, or the next bead will go the same way.
What affects the cost of remedial sealant
We quote each job individually. These are the things that affect it:
- Which sealant suits the joint
- Access and height
- The number of rooms or windows
- Working hours on commercial sites
Doing several joints on one visit normally makes better use of the time than several visits. We’ll send you a clear quote for the lot.
What we need to know
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- A few photos by email, if you can
- The rough size of the job
- If someone has resealed it before
- Access, such as stairs, a lift or height
If you are in Janetstown and need remedial sealant, send an email to info@mrmastic.co.uk. A short description of the job and where it is helps us quote, and you’ll get a clear quote before work begins.
What we do, step by step
All our tools and materials come with us in the van, so you don’t need to buy or prepare anything. Once we’ve agreed what’s being done, the area is protected and the work begins. It normally takes a few hours, depending on how many layers have to come out. Somewhere like Janetstown may be a longer drive, and the journey is planned ahead. Mention tracks, gates, ferries or anything else about the route.
- We start by checking the joint for movement, leaks and the reason it failed.
- All the old sealant comes out, including any layers underneath.
- We clean the joint, treat any mould and let it dry.
- Moving joints get backing and a flexible sealant to suit.
- Finally we finish the joint and talk you through what we found.
Preparing for the visit
- Mention any leaks or damp you’ve noticed
- Try not to wet indoor joints just before the visit
- Mention any sign-in or site rules at work premises
Getting a quote
Need a quote? Please send an email to info@mrmastic.co.uk and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.
Advice
FAQs for Janetstown
Will you come out to Janetstown?
Yes, smaller places are covered as well as towns. We work across all of Scotland. Just mention lanes, gates or anything else about the route when you book.
Can you do remedial sealant in Janetstown?
Yes. We work across all of Scotland, and Janetstown is part of that. Just drop us a line at info@mrmastic.co.uk with a few details of the job, and we’ll give you a clear quote.
Should I try DIY first?
Sometimes. Preparation is everything: all the old sealant out, and a clean, dry joint. We can always put it right if it fails.
Will it make a mess?
Very little: the area around the joints is protected first, and we tidy up before we go.
Can you remove sealant that is been put over old sealant?
Yes. We remove every layer; new silicone doesn’t bond to old silicone, which is why over-sealing fails.
Do you remove the old sealant?
Yes. Sealing over old sealant is the main reason resealing fails early, so we never do it.
How long will it take to strip and reseal the joint?
The number of joints and layers decides it. You will have a timescale before any work begins.
Can you work on commercial sites?
Yes. Larger jobs can be planned room by room or area by area.