Highland · Scotland
Remedial Sealant in Lewiston
We cover Lewiston for removing failed, mouldy or leaking sealant and putting it right. Old sealant removed completely, joints prepared properly and every job guaranteed for a year.
- Gaps opening along the back of the worktop
- Dark patches showing through the sealant
- A shower that leaks however often it’s resealed
About our remedial sealant in Lewiston
With more than 20 years’ experience, our applicators have seen most of the ways sealant can fail. We are ARBOMaster approved and fully insured, and every remedial job comes with a 12-month guarantee. If you have dark patches showing through the sealant and beads that never stuck properly, we can help, on expansion joints, mouldy bath & shower sealant 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 normally the first signs.
Big or small, it’s backed by our one-year guarantee.

- Place
- Lewiston (IV63)
- Region
- Highland
- Guarantee
- 12 months on all our work
- Quotes
- A clear price before we start
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Honest limits
Some problems need a builder, plumber or other trade rather than us:
- Sealant in an older building that needs testing for asbestos first
- A tray or bath that’s cracked
- A bath, tray or worktop that moves until it’s properly fixed
If in doubt, email us at info@mrmastic.co.uk and we’ll say what we think.
What we seal
- Expansion joints
- Leaking tray & enclosure joints
- Mouldy bath & shower sealant
- Shrunken worktop sealant
- Failed movement joints
- Botched or over-sealed joints
Should I try it myself first?
If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly, so tell us about it when you ask for a quote.
The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.
Landlords, agents and businesses in Lewiston
If you manage several properties in or around Lewiston, several properties can be quoted together. Send us the addresses and the work at each.
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.
How to look after the new joints
To keep the joints looking good and working properly:
- Keep an eye on the ceiling below the bathroom
- Report a tray that rocks or a worktop that lifts
- Find out why the sealant failed first
- Don’t point over movement joints
Where we’ve pointed out another fault, have it put right, because the new sealant cannot hold back a problem underneath.
Leaks through failed sealant grow over time. Every shower or downpour sends more water through, into floors, walls or ceilings. Sorting it early limits the damage.
Places near Lewiston
What else we do in Lewiston
Why it’s worth doing now in Lewiston
Leaks that are left keep doing damage out of sight: soaked floorboards, ceiling stains below and blown plaster. Dealing with the joint now is a small job by comparison. In an older home around Lewiston, damp from a failed joint can get into timber and plaster.
A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether we need extra access for height. We take all of that into account in your quote.
What you get with us
- ARBOMaster approved applicator
- Fully insured
- Homes, businesses and hotels
- 4.9 on Google from 180+ five-star reviews
Take a look at how sealant jobs are priced or customer reviews.
Quotes for remedial sealant in Lewiston
The price is agreed before any work begins. It’s based on:
- The size of the job
- How much old sealant there is and how hard it is to remove
- Any mould that needs treating
- How easy the joints are to reach
Doing several joints on one visit usually makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. We will send you a clear quote for the lot.
Helping us quote
Photos help, but a description is a good start. Try to tell us:
- Whether it has been sealed before
- Photos by email, if that is easy
- The problem you’ve noticed
- Where the job is, and your postcode
For remedial sealant in Lewiston, drop us a line at 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 any work starts.
Lewiston: your questions answered
Is Lewiston in your area for remedial sealant?
Yes. Our work covers the whole of Scotland, and Lewiston is part of that. You can drop us a line at info@mrmastic.co.uk and tell us what needs doing, and we’ll give you a clear quote.
Do you cover smaller places like Lewiston?
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.
Do you guarantee remedial jobs?
Yes. You get our 12-month guarantee, and we’re ARBOMaster approved.
Is it messy?
Not at all. The area is protected while we work and cleaned up afterwards.
Do you remove the old sealant?
Yes. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.
What do you need from me for a quote?
The location, the problem and the rough size of the job. Photos by email help too.
Are you insured?
Yes. We are fully insured.
Do you fix expansion and movement joints?
Yes. The depth is set with backing so the sealant only bonds to the two sides.
What remedial sealant looks like in Lewiston
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. In Scotland, private landlords have to 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.
Managing a site like Glen Urquhart High School? Then we reseal washrooms and kitchens in schools and businesses as well as homes. In the older streets around Kilmore Parish Church of Scotland, walls and floors in older homes can move, and sealant and grout show it first.
Lewiston is about 13 miles south-west of Inverness, in Highland. Homes, rented property, offices and hotels in Lewiston can book us for remedial sealant, old or new, large or small. Every job comes with our one-year guarantee. Across Highland, we cover 253 places, Lewiston among them.
We work across the IV63 postcode area for remedial sealant. If you need remedial sealant at a property on Dal of Borlum, Carn Glas and Carriers Croft or anywhere close by, we can help. Other places close to Lewiston include Drumnadrochit (1 mile north), Torness (4 miles east), Gorthleck (6 miles south), Dores (7 miles north-east) and Kiltarlity (8 miles north). Larger places within reach include Inverness (13 miles north-east), Merkinch (14 miles north-east), Hilton (13 miles north-east), Crown (14 miles north-east), Millburn (14 miles north-east) and Muir of Ord (13 miles north). If you are somewhere remote, the job takes a little more planning.
What’s near Lewiston
We work in homes and buildings around Drumnadrochit Hotel. Nearby you’ll also find Urquhart Castle (1.3 miles east) and Urquhart Castle Visitor Centre (1.2 miles east). The countryside around Lewiston includes Loch Ness.
The process
On the day, there’s very little for you to do. Point us to the joints and we’ll get on with it. The job generally takes a few hours for most joints, depending on how much old sealant has to come out from start to finish. Outside jobs in Lewiston need a dry day, because sealant will not bond to a wet joint, so an outdoor job can move if the forecast changes. Indoor work goes ahead whatever the weather.
- First we work out whether the problem is the sealant, movement or a leak.
- Each layer is cut out and the residue cleaned off.
- We treat any mould and dry the joint thoroughly.
- The right product goes in, with backing where the joint moves.
- The joint is tooled and you are told about anything else we found.
Preparing for the visit
- Plan for the work area to be out of bounds to pets and children
- Try not to wet indoor joints just before the visit
- Mention any leaks or damp you’ve noticed
Ask for a quote
We quote each job on its own. Simply drop us a line at info@mrmastic.co.uk and describe the job.
