Highland · Scotland
Remedial sealant & repairs in Thurso, Highland
Our applicators work in Thurso 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.
- Thick, messy sealant smeared over tiles
- Torn expansion joints
- Decorators’ caulk around a bath or shower
Remedial sealant in Thurso, done properly
Remedial jobs in Thurso normally fall into a few patterns: sealant over sealant, mould under the bead, leaks that come back and movement joints that have split. Each is stripped back and done again properly. Typical jobs include leaks that keep coming back after resealing and dark patches showing through the sealant, across mouldy bath & shower sealant, failed movement joints and leaking tray & enclosure joints.
With generally soft Scottish Water supplies, limescale is less of an issue in Thurso than in hard-water areas. But mould still finds its way into sealant and grout wherever a room stays damp.
All of our work is guaranteed for twelve months.
- Location
- Thurso (KW14)
- Wider area
- Highland
- Guarantee
- 12 months on all our work
- Price
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
The process
We keep the work tidy and contained to the area we’re working on. Expect the work to take a few hours for most joints, depending on how much old sealant has to come out, and we explain the cure time before we leave. For a job in Thurso, tell us where the work is, how to get in and where to park. Outdoor jobs need a dry day, so they can move if the weather turns.
- We protect the surfaces around the joint.
- 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.
Preparing for the visit
- Try not to wet indoor joints just before the visit
- Plan for the work area to be out of bounds to pets and children
- For business premises, tell us about site rules or sign-in
Ask for a quote
For remedial sealant in Thurso, send an email to info@mrmastic.co.uk. A short description of the job and where it is helps us quote, and you will get a clear quote before work begins.
Related advice
What sealant work cannot fix
Before you book, it’s worth knowing the limits too:
- Older mastics that may need an asbestos check before removal
- Movement from fittings that are not supported
- A cracked shower tray or bath (that needs repair or replacing)
Not sure which it is? You can email us at info@mrmastic.co.uk and we’ll tell you honestly.
Joints and surfaces we work on
- Expansion joints
- Mouldy bath & shower sealant
- Leaking tray & enclosure joints
- Failed movement joints
- Shrunken worktop sealant
- Botched or over-sealed joints
Also in Thurso
Your questions about remedial sealant in Thurso
Is Thurso in your area for remedial sealant?
Yes. Our work covers the whole of Scotland, and Thurso is part of that. Just drop us a line at info@mrmastic.co.uk with a few details of the job.
Do you work for landlords with property near Thurso station?
Yes. We work for landlords and agents as well as homeowners, and several properties can be quoted together. You can send an email to info@mrmastic.co.uk with the details for a clear quote.
Can you remove old sealant without damaging the bath?
Yes. We take our time over removal, especially on acrylic, enamel and uPVC.
Can you do several jobs on one visit?
Yes. Tell us about everything you’d like done and we will quote it together.
Someone resealed my shower and it’s leaking again. Can you help?
Yes. We check it’s the sealant and not the tray, valve or waste, then the joints are stripped and resealed.
What should I tell you?
A short description and the location, plus photos if you have them. We’ll ask anything else we need to know.
How long will it take to strip and reseal the joint?
It takes a few hours for most joints, depending on how much old sealant has to come out. We will give you a timescale when we quote.
Is remedial work guaranteed?
Yes. You get our 12-month guarantee.
Leave it or put it right?
Spraying mould remover on a sealed-over joint does not reach what’s underneath. The layers have to come out, and the joint treated and dried before resealing. If you live in a flat in Thurso, failed sealant can send water to the neighbours below, which turns a small job into a bigger one.
Homes and businesses are quoted the same way: the amount of work, the access and the products needed, along with when we can work on site. Ask us for a quote and we’ll go through it with you.
Why Thurso customers choose us
- 180+ five-star Google reviews
- We agree the colour with you first
- Every job guaranteed for a year
- A choice of colours where the product allows
Read our cost guide and customer reviews.
What affects the cost of remedial sealant
For a quick quote, just ask. What matters most is:
- Whether the work is at height
- Which sealant suits the joint
- Whether old sealant or filler has to be cut out
- When we can work, for business premises
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. The price is agreed before we begin.
What we need to know
When you contact us, these details help:
- What the problem is, such as mould, gaps, leaks or cracking
- A few photos by email, if you can
- Whether it’s a home or a business
- Any previous sealing or DIY work
Getting a quote is simple: let us know the job and the location, and roughly how big it is. A few pictures by email make the job easier to understand, and we will come back to you with a quote.
Remedial sealant around Thurso
Thurso is within about 1 mile of 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. Private landlords in Scotland must be registered and meet the Repairing Standard, which includes keeping fixtures and fittings in reasonable repair. Tired, leaking sealant is worth putting right before a new tenant moves in.
If you look after a building such as Thurso High School, we reseal washrooms and kitchens in schools and businesses as well as homes.
Thurso is in Highland. Jobs in Thurso get the same care as everywhere else we work: old sealant removed completely, careful preparation and a one-year guarantee. Thurso is one of 253 places in Highland where we work.
Our applicators cover all of the KW14 postcode area for remedial sealant. We cover properties on Sir John's Square, Gerry Square and High Street. Being close to the A9 and A836, Thurso is easy for our applicators to reach for remedial sealant. Nearby, we also carry out remedial sealant in Scrabster (2 miles north-west), Glengolly (2 miles south-west), Janetstown (3 miles south-west), Murkle (3 miles east) and Forss (4 miles west). As one of the bigger places in Highland, Thurso has every kind of property, from flats to offices. If you are somewhere remote, a little more planning is needed, so mention it when you ask for a quote.
Around Thurso
There’s a railway station in Thurso itself: Thurso station. Well-known places in the area include Scrabster Castle (0.7 miles north-west) and Thurso Heritage Museum (0.6 miles north-west).
Aftercare tips
Aftercare is simple:
- Do not wait for a small gap to become a leak
- Run the fan after every shower
- Get the cause of a repeat leak found before resealing
- Clean sealant with mild products only
If the joint ever needs renewing, have it cut out, not sealed over. Over-sealing is how many remedial jobs start.
Warning signs: sealant lifting at the ends, a second bead visible on top of the first, black mould under the silicone, or stains below a bathroom. Each one is worth getting looked at.
Signs you need remedial sealant in Thurso
Products get mixed up: caulk where it gets wet, rigid sealant where things move, or an acetoxy silicone on a surface it can mark. None of them last.
Most people get in touch when they notice one of these:
- Thick, messy sealant smeared over tiles
- Over-sealed joints coming away
- Floor or wall movement joints that have failed
- Gaps opening along the back of the worktop
For landlords with property near Thurso station, failed or mouldy sealant is worth putting right between tenancies, before it turns into a leak.
Questions to ask before booking
- The length of the guarantee
- How long to leave it before use
- Which sealant they’ll use, and why
- Are they insured?
Different surfaces, different methods
Movement & expansion joints
Movement joints in floors, walls and façades need a flexible sealant set to the right depth. Failed sealant is cut out, backing rod or tape is fitted and the joint resealed.
Worktops & kitchens
Kitchen joints hold grease and residue, so cleaning takes longer than in a bathroom.