Argyll and Bute · Scotland
Remedial Sealant in Portnahaven
Specialist remedial sealant for Portnahaven: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Floor or wall movement joints that have failed
- Repeat leaks from the same joint
- Sealant applied over old sealant that has lifted
What happens if it’s left?
Spraying mould remover on a sealed-over joint does not reach what’s underneath. Removal is the only way to get at it. Out of town in Scotland, exposed walls take a lot of weather, and damp in stone or harled walls takes a long time to dry once water gets behind a joint.
We don’t show prices on the website, because the cost depends so much on the job itself. Call for a quick quote and we’ll talk you through it.
Why us?
- One-year guarantee on every job
- A choice of colours where the product allows
- Sanitary silicone with an anti-fungal additive in wet areas
- We’re fully insured
Take a look at how sealant jobs are priced or customer reviews.
How we handle remedial sealant in Portnahaven
If a joint fails again and again, something is causing it. Movement, the wrong product or a leak from somewhere else will beat any new bead. We look for the cause before we reseal. Common call-outs are for decorators’ caulk around a bath or shower and sealant that came away because the surface wasn’t prepared, across expansion joints, leaking tray & enclosure joints and mouldy bath & shower sealant.
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.
Each job carries a 12-month guarantee, whatever its size.
- Where
- Portnahaven (PA47)
- Region
- Argyll and Bute
- Guarantee
- One year on every job
- Quote
- A clear price before we start
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Towns and villages near Portnahaven
Other services in Portnahaven
How to look after the new joints
Aftercare is simple:
- Do not point over movement joints
- Clean sealant with mild products only
- Run the fan after every shower
- Do not add new sealant on top of old
Go easy on the new sealant: a mild cleaner and a soft cloth, with no blades or scourers.
Mould under a second layer of sealant keeps growing out of sight. By the time it shows through, the joint is well past saving.
Portnahaven: your questions answered
Is there a guarantee on remedial sealant in Portnahaven?
Every job comes with our one-year guarantee, wherever it is. We are fully insured, and an ARBOMaster approved applicator.
Is Portnahaven in your area for remedial sealant?
Yes. We work across all of Scotland, and Portnahaven is part of that. You can email us at info@mrmastic.co.uk and let us know what needs doing, and we’ll give you a clear price.
Do you work for landlords and businesses?
Yes, we do. We work in homes, commercial premises and hotels.
What sealant do you use?
The product depends on the job: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. We use products from Arbo and Everbuild.
How much does remedial sealant cost in Portnahaven?
Every job is different, so each one gets its own quote. To get one, email us at info@mrmastic.co.uk with a short description of the job.
Do you remove the old sealant?
Yes. We cut out all the old sealant and clean the joint before resealing.
Is there any odour?
Sometimes, a little. It fades as the sealant cures.
Can you match the sealant colour?
Yes. Sealants come in white, clear, grey and other colours for many products, and we agree the colour with you before work begins.
What we’re called out for in Portnahaven
Sealant needs a clean, dry surface with no grease on it. Soap film, dust, damp or old residue stop it gripping, so it starts lifting sooner than it should.
Look out for these signs:
- Beads that never stuck properly
- Products that weren’t meant for the joint
- A second bead peeling off the first
- Mould trapped under a layer of silicone
In the older streets around Portnahaven Church, older homes can move a little, which is hard on rigid grout and tired sealant.
What your quote should include
- What guarantee comes with the work
- How the colour is chosen
- Is the old sealant removed completely?
- When the joint can take water or movement
What we do, step by step
Once we are on site, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. After that, the work takes a few hours for a typical bath or shower, longer where several layers have been applied. Around Portnahaven, distance and access matter more than parking. Let us know how to find you and how to reach the joints.
- We look at how the sealant has failed and check for movement or a leak path.
- We strip the joint completely, removing any layers below.
- Next, any mould is treated and the joint dried.
- Moving joints get backing and a flexible sealant to suit.
- Finally we finish the joint and talk you through what we found.
Before we arrive
- For indoor joints, keep the area dry beforehand if you can
- Plan for the work area to be out of bounds to pets and children
- Clear items away from the joints we are working on
Getting a quote
We do not publish a price list. Instead, your job gets its own clear quote. To arrange one, drop us a line at info@mrmastic.co.uk.
Advice
How we quote for remedial sealant
Some jobs are bigger than they look, and some smaller. What affects the quote:
- Whether old sealant or filler has to be cut out
- The product the joint needs
- The number of rooms or windows
- Mould in or behind the old joints
Every job is a little different, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all make a difference.
Asking for a quote
Photos help, but a description is a good start. Please mention:
- What the problem is, such as mould, gaps, leaks or cracking
- If it’s domestic, commercial or a hotel
- If someone has resealed it before
- The address or postcode of the job
For remedial sealant in Portnahaven, email us 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 we start.
What sealant work cannot fix
A few problems are outside what sealant work can do:
- A leaking trap, valve or supply pipe
- Old mastic in a building from before 2000 that should be checked for asbestos before it’s disturbed
- A bath, tray or worktop that moves until it’s properly fixed
If in doubt, send an email to info@mrmastic.co.uk and we will say what we think before booking.
Joints and surfaces we work on
- Expansion joints
- Botched or over-sealed joints
- Mouldy bath & shower sealant
- Shrunken worktop sealant
- Failed movement joints
- Leaking tray & enclosure joints
DIY versus a professional finish
If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly, so just mention it when you contact us.
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.
Remedial sealant around Portnahaven
Portnahaven 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. 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.
In and around Portnahaven, as anywhere, good remedial sealant starts with a clean, dry, properly prepared joint.
Portnahaven (Gaelic: Port na h-Abhainne) is in Argyll and Bute. Portnahaven gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a 12-month guarantee. Portnahaven is one of 118 towns and villages in Argyll and Bute where we work.
Postcode districts we cover here for remedial sealant: PA47. You will find streets such as High Street, Shore Street and Church Street, and we cover them all. Close by, we work in Bun Othan (1 mile south), Port Charlotte (6 miles north-east), Bowmore (10 miles north-east), Imeraval (12 miles east) and Port Ellen (13 miles east). For island and remote addresses, a little more planning is needed.
Local landmarks in Portnahaven
Open spaces near Portnahaven include Beinn Tart a' Mhill.