Highland · Scotland
Remedial Sealant in Strathy
Remedial sealant for Strathy, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Sealant that came away because the surface wasn’t prepared
- Floor or wall movement joints that have failed
- Mould trapped under a layer of silicone
How the job changes by surface
Over-sealed & botched joints
A botched joint can hide two or three layers of sealant, including the smears and film on surrounding tiles. Only a clean joint will take a new bead.
Mouldy bath & shower sealant
Repeat mould generally points to a damp, poorly aired room. We’ll reseal and tell you if extraction looks to be the issue.
Remedial sealant for homes and businesses in Strathy
Removing failed sealant is the hardest part of the job. Every layer is cut out, the residue cleaned off and the joint degreased, taking care not to scratch the surfaces around it. New sealant only bonds to a clean, dry joint. Typical jobs include torn expansion joints and a second bead peeling off the first, on mouldy bath & shower sealant, expansion joints and shrunken worktop sealant.
Bathrooms in smaller places like Strathy work just as hard as those in the cities. Generally soft Scottish water means less limescale, but steam still lets mould into sealant and grout.
We stand behind the work with a 12-month guarantee.
- Place
- Strathy (KW14)
- Wider area
- Highland
- Guarantee
- A year, on every job
- Quote
- Quoted before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026

Landlords, agents and businesses in Strathy
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. We can quote for more than one property at once.
Strathy homes and their sealant
Strathy is within about 1 mile of 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. 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.
For jobs in and around Strathy, choosing the right material for each joint is as important as a tidy finish.
Strathy is about 17 miles west of Thurso, in Highland. We provide remedial sealant to homes and businesses in Strathy and nearby, as part of our work across Highland. We cover 253 towns and villages across Highland.
We cover every part of the KW14 postcode area for remedial sealant and the streets around it. Other places close to Strathy include Portskerra (3 miles east), Melvich (3 miles east), Reay (8 miles east), Am Blàran Odhar (8 miles west) and Forss (13 miles east). If you are somewhere remote, the job takes a little more planning.
Local landmarks in Strathy
For a walk, there’s Lochan Ealach.
What happens on the day
On the day, we start by going over the job with you, so there are no surprises. We protect the surfaces around the joints before work begins. The work usually takes a few hours, depending on how many layers have to come out. Outside jobs in Strathy need a dry day, because sealant won’t bond to a wet joint, so external jobs may need to move if the day turns wet. Work indoors is not affected.
- We look at how the sealant has failed and check for movement or a leak path.
- Every layer of old sealant is cut and cleaned out.
- Next, any mould is treated and the joint dried.
- Moving joints get backing and a flexible sealant to suit.
- Finally we finish the joint and talk you through what we found.
Getting ready for the visit
- Let us know about stairs, lifts or work at height
- Mention any parking rules near the property
- Let us know if you’ve seen damp or leaks
How to get a quote
If you are in Strathy and need remedial sealant, drop us a line at info@mrmastic.co.uk. A short description of the job and where it is helps us quote, and we will agree the price before any work begins.
Related advice
Signs you need remedial sealant in Strathy
Joints that move need sealant that can stretch. A bath that flexes, a tray that rocks or a building joint that opens and closes will split a rigid or thin bead.
Common reasons people contact us are:
- Gaps opening along the back of the worktop
- Decorators’ caulk around a bath or shower
- Mould trapped under a layer of silicone
- Torn expansion joints
In and around Strathy, as anywhere, good remedial sealant starts with a clean, dry, properly prepared joint.
What to look for in a quote
- How the surfaces are prepared before sealing
- Whether all the old sealant comes out first
- What the cure time is
- What guarantee comes with the work
Why deal with it now?
Mould under a bead cannot be reached by cleaning. The layers have to come out, so the joint can be treated and resealed. In a place like Strathy, 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, as water and mould keep getting in. If you’re not sure whether it needs doing, drop us a line at info@mrmastic.co.uk and we will give you an honest view and a quote.
Why Strathy customers choose us
- An ARBOMaster approved applicator
- We leave the area clean and tidy
- We never seal over old sealant
- More than 20 years in sealant work
Take a look at what affects the cost or what customers say.
When something else is needed
Before booking, it’s worth knowing the limits:
- Cracks in the fitting rather than the joint
- Old mastic in a building from before 2000 that should be checked for asbestos before it’s disturbed
- Movement from fittings that are not supported
If in doubt, email us at info@mrmastic.co.uk and we will say what we think before you book.
Joints and surfaces we work on
- Mouldy bath & shower sealant
- Botched or over-sealed joints
- Expansion joints
- Shrunken worktop sealant
- Leaking tray & enclosure joints
- Failed movement joints
Places near Strathy
What else we do in Strathy
Questions from Strathy
Is Strathy within the area you cover?
Yes, Strathy is covered. We work across all of Scotland, and smaller places are part of that. Longer journeys are simply planned in advance.
Is there a guarantee on remedial sealant in Strathy?
All our work, in Strathy and everywhere else, comes with a 12-month guarantee. We’re fully insured, and an ARBOMaster approved applicator.
I’m a tenant. Can you help?
Yes. Ask your landlord first, and we can send them the quote if that helps.
Will the old sealant be removed?
Yes. All of the old material is cut out and the joint cleaned.
Are you insured?
Yes. We are fully insured.
How long before the joint can be used?
Most sealants are touch-dry well before they’re fully cured. We’ll give you the cure time for the product we used.
What should I tell you?
Just the basics: the address or postcode, what’s wrong and any access issues. After that, simply email us at info@mrmastic.co.uk.
How long does remedial resealing take?
A little longer than a standard reseal. For most joints, it’s a few hours, and we confirm the time with your quote.
Looking after it afterwards
So the new joints stay in good condition:
- Always have old sealant cut out, not covered
- Don’t wait for a small gap to become a leak
- Run the fan after every shower
- Check trays and worktops don’t move
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. By the time it shows through, the joint is well past saving.
