Glasgow · Scotland
Remedial sealant & repairs in Kennishead, Glasgow
Removing failed, mouldy or leaking sealant and putting it right in Kennishead, with a 12-month guarantee on every job. Ask us for a quote.
- Repeat leaks from the same joint
- Dark patches showing through the sealant
- Thick, messy sealant smeared over tiles
About our remedial sealant in Kennishead
Not every leak is a sealant leak. A cracked tray, a failed shower valve or a leaking waste can look just the same. If that’s what we find, we will tell you rather than reseal something that will not fix it. Typical jobs include movement joints that have split or pulled away and mould trapped under a layer of silicone, on botched or over-sealed joints, mouldy bath & shower sealant and failed movement joints.
Tenement flats are common in all four of Scotland’s big cities, alongside suburban houses and modern blocks. In a tenement, most bathrooms sit above someone else’s ceiling, so failed sealant around a bath or shower can soon become a neighbour’s problem, and that is as true in Kennishead as anywhere in the city.
Every job is covered by a one-year guarantee, wherever you are in Glasgow.
- Where
- Kennishead (G46, G43, G53)
- Region
- Glasgow
- Guarantee
- A year, on every job
- Quotes
- A clear price before work begins
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
DIY versus a professional finish
If you’ve already had a go yourself, that is fine. We remove it and do the joint properly, so tell us about it when you ask for a quote.
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is.
The process
There is not much for you to do on the day. Show us the job and we will take it from there. The job generally takes a few hours for most joints, depending on how much old sealant has to come out. Inside a flat in Kennishead, the job is planned with you; outside, shared parts may need the factor or other owners involved. It helps to know which it is when you get in touch.
- First we work out whether the problem is the sealant, movement or a leak.
- Old beads and residue are removed down to clean surfaces.
- We treat any mould and dry the joint thoroughly.
- The right product goes in, with backing where the joint moves.
- We finish neatly and point out anything that needs another trade.
How to prepare
- Try not to wet indoor joints just before the visit
- Let us know if you’ve seen damp or leaks
- Let us know about earlier repairs to the joints
Ask for a quote
For remedial sealant in Kennishead, drop us a line at info@mrmastic.co.uk. Tell us what the problem is and where, and we will agree the price before any work begins.
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Signs you need remedial sealant in Kennishead
Some joints fail because water is reaching them from behind. A leaking valve, a failed waste or cracked grout feeds water behind the bead, so the silicone goes mouldy or lets go.
It’s worth asking for a quote if you see:
- Sealant applied over old sealant that has lifted
- Black mould underneath the bead
- Thick, messy sealant smeared over tiles
- Gaps opening along the back of the worktop
Schools such as Hillpark Secondary School are buildings too, and washroom and kitchen sealant there needs the same care as at home, and schools and businesses are part of our work as well as homes.
Comparing quotes
- How hidden problems are handled
- How the surfaces are prepared before sealing
- Whether they seal over old material or remove it
- Is VAT in the price?
Bathrooms and kitchens in Kennishead
Sandstone tenements are a big part of Glasgow’s housing, so many bathrooms sit right above a neighbour’s ceiling. In Scotland, private landlords have to meet the Repairing Standard, which covers keeping fixtures and fittings in a reasonable state of repair. Tired, leaking sealant is worth putting right before a new tenant moves in.
If you let a flat or house near Kennishead station, failed or mouldy sealant is worth putting right between tenancies, before it turns into a leak.
Kennishead is about 2 miles north-west of Giffnock, in Glasgow. Every kind of property in Kennishead can book us for remedial sealant. Every job comes with our one-year guarantee. Our area takes in 183 places across Glasgow, large and small.
Postcode districts we cover here for remedial sealant: G46, G43 and G53. Streets in the area include Brent Road, Main Street and Kilmuir Road. Other places close to Kennishead include Carnwadric (1 mile south), Arden (1 mile south-west), Eastwood (1 mile east), Cowglen (1 mile north-west) and Mansewood (1 mile east). Further out, we also cover Glasgow (3 miles north-east), Hillhead (4 miles north), Dowanhill (5 miles north), Woodlands (4 miles north-east), Woodside (5 miles north-east) and North Kelvinside (5 miles north).
Landmarks near Kennishead
We work in homes and buildings around Rouken Glen, among other places. There’s a railway station in Kennishead itself: Kennishead station. Other landmarks nearby include Silverburn Shopping Centre (0.9 miles north-west) and The Open Museum (1.6 miles west). Open spaces near Kennishead include Cathkin Braes.
When it is not the sealant
We’d rather tell you now than do work that won’t last, so here’s what sealant can’t put right:
- Cracks in the fitting rather than the joint
- A leaking trap, valve or supply pipe
- Older mastics that may need an asbestos check before removal
Not sure which it is? You can email us at info@mrmastic.co.uk and we will tell you honestly.
Joints and surfaces we work on
- Leaking tray & enclosure joints
- Failed movement joints
- Shrunken worktop sealant
- Expansion joints
- Botched or over-sealed joints
- Mouldy bath & shower sealant
Common questions in Kennishead
Can a failed shower seal in a tenement flat in Kennishead leak into the flat below?
Yes, it can. In a tenement, water that gets past failed sealant or cracked grout can run under the bath or tray and through to the ceiling below, and then the repair involves your neighbours too. It’s worth sorting sealant and grout before it gets that far.
Do you cover Kennishead for remedial sealant?
Yes, Kennishead is within the area we cover. Our work covers the whole of Scotland. Just drop us a line at info@mrmastic.co.uk with a few details of the job, and we will send you a clear quote.
Where is Mr Mastic based?
Mr Mastic is based in Crawley. We cover Kennishead and the rest of Glasgow, along with the rest of our area.
Is it messy?
No. The area is protected while we work and cleaned up afterwards.
Can you remove old sealant without damaging the bath?
Yes. Careful removal is most of a remedial job, especially on acrylic, enamel and uPVC.
Can I add another job to the visit?
Yes. Just list everything you need and you will get one quote.
Someone resealed my shower and it’s leaking again. Can you help?
Yes. There’s normally a reason: sealant over sealant, movement or another leak, and we deal with the cause first.
How long does remedial resealing take?
Longer than a simple reseal, because every layer has to come out. For most joints, it’s a few hours.
Different surfaces, different methods
Over-sealed & botched joints
A botched joint can hide two or three layers of sealant, and silicone residue is cleaned off the tiles too. New sealant needs a fully clean surface.
Movement & expansion joints
A movement joint must be able to stretch. We remove the failed sealant, fit backing and reseal.
Nearby places to Kennishead
What else we do in Kennishead
What affects the quote in Kennishead
Call for a quick quote. What matters most is:
- The number and length of the joints
- How many rooms, windows or areas are involved
- Any mould that needs treating
- When we can work, for business premises
The cost depends on the size of the job, how hard the old material is to remove and how easy the joints are to reach. You will have a clear quote before any work starts.
What we need to know
To make quoting easier, let us know:
- Photos by email, if that is easy
- Any access issues, like height or stairs
- Any previous sealing or DIY work
- What the problem is, such as mould, gaps, leaks or cracking
Every job is quoted individually. Just send an email to info@mrmastic.co.uk with the details.
Why act early in Kennishead
Another bead over the top will not fix a failed joint. It doesn’t grip the old layer, so the leak carries on and there’s now more to remove. In a Scottish city tenement, failed sealant affects more than one flat: a leak can come through the ceiling below, and gaps in shared walls or fire-rated joints matter to every flat.
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you’re not sure whether it needs doing, send an email to info@mrmastic.co.uk and we will give you an honest view and a quote.
Why Kennishead clients choose us
- Old sealant always removed completely
- Sealant colour chosen to suit
- More than 20 years in sealant work
- Approved under the ARBOMaster scheme