Na h-Eileanan Siar · Scotland
North Lochs Remedial Sealant
Removing failed, mouldy or leaking sealant and putting it right for homeowners, landlords and businesses in North Lochs. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Over-sealed joints coming away
- Products that weren’t meant for the joint
- Dark patches showing through the sealant
How it works
We bring everything the job needs with us, so there’s nothing for you to buy. After a quick look at the joints together, we protect the area and start. Most jobs take a few hours for most joints, depending on how much old sealant has to come out. In smaller Scottish places, parking is normally less of an issue than access and distance. Let us know how to find you and how to reach the joints, and the visit is planned around that.
- We protect the surfaces around the joint.
- The botched or failed sealant is cut away completely.
- We clean and degrease the joint and look for signs of movement or water.
- Once dry, a suitable sealant is applied and tooled.
- You get the cure time and our view on why the joint failed.
Preparing for the visit
- Tell us about any previous sealing or DIY attempts
- Mention any tricky access
- For business premises, tell us about site rules or sign-in
Get a quote
For remedial sealant in North Lochs, 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 we start.
Related advice
How we handle remedial sealant in North Lochs
A joint that keeps failing generally has a reason. Movement, the wrong product or a leak from somewhere else will defeat even a perfect bead. Finding that cause comes before any new sealant. If you’re dealing with sealant peeling off a dusty or damp surface and mould trapped under a layer of silicone, we can help, on shrunken worktop sealant, failed movement joints and expansion joints alike.
For a place like North Lochs, the job is the same as anywhere: everything old is cut out, the joints are cleaned and dried, and new sealant or grout goes in. We just plan the journey and access beforehand.
All our work is covered by a 12-month guarantee.
- Where
- North Lochs (HS2)
- Wider area
- Na h-Eileanan Siar
- Cover
- One year on every job
- Quote
- Quoted before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
When something else is needed
We’d rather tell you now than do work that won’t last, so these are the limits:
- A cracked shower tray or bath (that needs repair or replacing)
- Movement from fittings that aren’t supported
- A leaking trap, valve or supply pipe
If in doubt, drop us a line at info@mrmastic.co.uk and we’ll say what we think.
Surfaces we seal
- Shrunken worktop sealant
- Failed movement joints
- Leaking tray & enclosure joints
- Expansion joints
- Mouldy bath & shower sealant
- Botched or over-sealed joints
DIY versus a professional finish
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.
If you’re set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.
Signs you need remedial sealant in North Lochs
Products get mixed up: caulk where it gets wet, rigid sealant where things move, or an acetoxy silicone on a surface it can mark. Each fails in its own way.
Keep an eye out for these signs:
- Gaps opening along the back of the worktop
- Leaks that keep coming back after resealing
- Sealant peeling off a dusty or damp surface
- Black mould underneath the bead
Around North Lochs, as everywhere, remedial sealant is only as good as the preparation behind it.
Questions to ask before you book
- When the joint can take water or movement
- How much experience the applicator has
- How the colour is chosen
- What product goes in the joint
Aftercare tips
To keep the joints looking good and working properly:
- Look for stains below bathrooms now and then
- Report a tray that rocks or a worktop that lifts
- Never seal over old silicone
- Act on a lifting corner straight away
Ventilation keeps mould away from the new bead: run the fan during and after showers, or open a window.
Mould trapped under over-sealed joints spreads unseen. When it finally shows, the whole bead needs to come out.
What else we do in North Lochs
North Lochs homes and their sealant
North Lochs 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. 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 does not dry out.
For an older house near a landmark such as Parish Church, walls and floors in older homes can move, and sealant and grout show it first.
North Lochs is about 6 miles south-west of Stornoway, in Na h-Eileanan Siar. North Lochs gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Across Na h-Eileanan Siar, we cover 87 places, North Lochs among them.
Work in HS2 is quoted and booked the same way as anywhere else. If you’re just outside North Lochs, we cover Crosbost (1 mile east), Liurbost (1 mile west), Lacasaidh (4 miles south-west), Marybank (5 miles north) and Stornoway (6 miles north-east). If you are somewhere remote, the job takes a little more planning, so let us know when you get in touch.
Local landmarks in North Lochs
A little further out are Western Isles Hospital (6 miles north-east). Green spaces nearby include Nisreaval and Loch na Craoibhe.
North Lochs: your questions answered
Do you cover smaller places like North Lochs?
Yes, smaller places are covered as well as towns. We work across all of Scotland, including the islands, where work is planned around ferry crossings. Just mention lanes, gates or anything else about the route when you book.
Can you do remedial sealant in North Lochs?
Yes, North Lochs is within the area we cover. We work across all of Scotland. Just email us at info@mrmastic.co.uk with a few details of the job.
Can you quote for more than one area?
Yes, and it often makes sense. Combining jobs makes good use of the visit, so mention them when you ask for a quote.
Do I have to be there?
Access is agreed with you when the job is booked. For inside work, that normally means someone being in.
What do you need from me for a quote?
A short description and the location. If we need more, we will ask.
My shower still leaks after a reseal. Can you sort it?
Yes. Repeat leaks normally come from over-sealing, movement or water getting in elsewhere, so we find that first.
Are you ARBOMaster approved?
Yes. Mr Mastic is an ARBOMaster approved applicator, and we’re fully insured.
Do you fix expansion and movement joints?
Yes. Where mortar or filler has been used instead of sealant, it’s removed where it can be, then the joint is sealed properly.
What affects the quote in North Lochs
There’s no set price list. The quote depends on:
- How many rooms, windows or areas are involved
- Working hours on commercial sites
- The old material and how stubborn it is
- Any mould that needs treating
No two jobs are quite the same, so we quote each one individually. Size, access and the product the joint needs all play a part.
What to tell us for a quote
What to tell us when you ask for a quote:
- Pictures of the joints, sent by email
- How we’d reach the joints
- The address or postcode of the job
- What the problem is, such as mould, gaps, leaks or cracking
It all starts with a short chat. Describe the problem, the location and the size of the job, and we’ll explain how we’d tackle it. Whenever you’re ready, email us at info@mrmastic.co.uk.
Work for landlords, hotels and businesses
Letting agents often deal with us directly. Tell us the address, the job and how access works.
Whether it’s one flat or a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a one-year guarantee.