Na h-Eileanan Siar · Scotland
Stornoway Remedial Sealant
Removing failed, mouldy or leaking sealant and putting it right in Stornoway, with a one-year guarantee on every job. Ask us for a quote.
- Floor or wall movement joints that have failed
- Gaps opening along the back of the worktop
- Thick, messy sealant smeared over tiles
Remedial sealant in Stornoway, done properly
Water on the floor does not always mean failed silicone. A cracked tray, a failed shower valve or a leaking waste can look just the same. When the fault is elsewhere, we say so instead of resealing for the sake of it. If you have black mould underneath the bead and over-sealed joints coming away, we can help, on expansion joints, botched or over-sealed joints and failed movement joints alike.
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 generally the first signs.
All of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.
- Place
- Stornoway (HS1, HS2)
- Wider area
- Na h-Eileanan Siar
- Guarantee
- A year, on every job
- Price
- Quoted before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Stornoway homes and their sealant
Stornoway is close to 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. There are hotels and other places to stay in and around Stornoway. As well as homes, we work in hotel bathrooms, where resealing and regrouting can be done room by room.
In and around Stornoway, as anywhere, good remedial sealant starts with a clean, dry, properly prepared joint.
Stornoway (Gaelic: Steòrnabhagh) is in Na h-Eileanan Siar. If you need remedial sealant in Stornoway, it’s easy to get a quote: please email us at info@mrmastic.co.uk. We cover Na h-Eileanan Siar from our Crawley base. We cover 87 towns and villages across Na h-Eileanan Siar, from the larger towns to small villages.
We cover every part of the HS1 and HS2 postcode area for remedial sealant. Remedial sealant is available to properties on Barony Square, Bain Square and Grant Square and the roads around them. You will find Stornoway on the A857 and A859, so it’s easy for us to get to with everything needed for remedial sealant. If you’re just outside Stornoway, we cover Plasterfield (1 mile east), Laxdale (1 mile north), Sandwick (1 mile south-east), Steinis (1 mile east) and Newmarket (1 mile north). Being one of Na h-Eileanan Siar’s larger places, Stornoway has every kind of property, from flats to offices. If you are somewhere remote, a little more planning is needed, so let us know when you get in touch.
Local landmarks in Stornoway
In Stornoway, that means homes and buildings near Neptune's Bar and the streets around them. A little further out are Western Isles Hospital (0.5 miles north) and Lewis Loom Centre (under half a mile south-west). Not far away are Loch Àirigh na Lic.
What we cannot put right
In fairness, there are a few things sealant will not fix:
- A tray or worktop that needs refixing first
- Sealant in an older building that needs testing for asbestos first
- Tiles that have come away from the wall
If in doubt, drop us a line at info@mrmastic.co.uk and we’ll say what we think.
Where we work in Stornoway
- Shrunken worktop sealant
- Expansion joints
- Mouldy bath & shower sealant
- Leaking tray & enclosure joints
- Failed movement joints
- Botched or over-sealed joints
What happens if it’s left?
Mould under a bead can’t be reached by cleaning. The layers have to come out. Around Stornoway, water from a failed joint in an older stone home can soak into timber and plaster.
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.
Why us?
- Rated 4.9 stars on Google
- We’re fully insured
- Homes, businesses and hotels
- A choice of colours where the product allows
What happens on the day
On the day, we start by going over the job with you. Surfaces next to the work are protected before any work begins. The work normally takes a few hours for a typical bath or shower, longer where several layers have been applied. For a place like Stornoway, longer drives are planned in advance. Tell us about tracks, gates, a ferry crossing or anything unusual about getting there.
- The failure is looked at first, so we know whether it’s sealant, movement or water from elsewhere.
- Old beads and residue are removed down to clean surfaces.
- Mould is treated and the joint dried.
- The right product goes in, with backing where the joint moves.
- The joint is tooled and you are told about anything else we found.
How to prepare
- Clear the area around the work
- Tell us about access, such as stairs, a lift or high-level joints
- Keep pets and children clear of the area while we work
Ask for a quote
If you’re in Stornoway 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 we’ll agree the price before any work begins.
Related advice
Should I try it myself first?
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
What we’re called out for in Stornoway
Using the wrong product is a common cause: acrylic caulk in a wet area, a general-purpose sealant on a moving joint, or an acetoxy silicone on natural stone or some metals. Each fails in its own way.
Common reasons people contact us are:
- Products that weren’t meant for the joint
- A second bead peeling off the first
- Sealant that came away because the surface wasn’t prepared
- Gaps opening along the back of the worktop
Whether the job is in Stornoway itself or nearby, the right material for each joint matters as much as a neat finish.
What to look for in a quote
- How much experience the applicator has
- How the joint is cleaned and prepared
- What guarantee comes with the work
- Whether VAT is included
Surface by surface
Mouldy bath & shower sealant
Mould can sit behind the silicone, not just in it. Once it’s all removed, the joint is treated.
Leaking trays & enclosures
If the tray is cracked, or the leak is from the valve or waste, sealant won’t fix it. We say so rather than reseal.
Looking after it afterwards
How long the joints last depends on use and care. Here’s what we suggest:
- Keep the room well ventilated
- Check ceilings under showers for marks
- Report a tray that rocks or a worktop that lifts
- Get the cause of a repeat leak found before resealing
If the joint ever needs renewing, have it cut out, not sealed over. New silicone doesn’t bond to old.
Do not keep resealing the same joint. Have someone find out why, or the next bead will go the same way.
Your questions about remedial sealant in Stornoway
Do you cover Stornoway for remedial sealant?
Yes. Our work covers the whole of Scotland, and Stornoway is part of that. Just drop us a line at info@mrmastic.co.uk with a few details of the job, and we’ll send you a clear quote.
Do you take on hotel work around Stornoway?
Yes. Hotel and guest-house work is part of what we do. Work can be planned room by room, and out-of-hours working can be arranged.
Does someone need to be in?
That depends on where the joints are. For work indoors, someone needs to let us in, while outside work can sometimes be arranged differently.
What information do you need?
The location, the problem and the rough size of the job. If you can, email a few pictures.
Do you take out the old sealant first?
Yes. We cut out all the old sealant and clean the joint.
How long before the joint can be used?
It depends on the product and the temperature. We tell you how long to leave it before we go.
Can you match 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.
Where are you based?
Our base is Crawley. Our area covers South East England, London and Scotland.