Dundee · Scotland
Longforgan Remedial Sealant
Removing failed, mouldy or leaking sealant and putting it right for householders, landlords and businesses in Longforgan. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Black mould underneath the bead
- Products that weren’t meant for the joint
- A second bead peeling off the first
Why act early in Longforgan
Leaks that are left keep doing damage out of sight: soaked floorboards, ceiling stains below and blown plaster. By comparison, sorting the joint is quick. In a place like Longforgan, small leaks are easy to put off, but water through a failed joint keeps working away until it’s fixed.
A few things move the cost up or down: how much old sealant there is and how stubborn it is, any mould to treat, and whether we need extra access for height. Your quote takes all of that into account.
Why book with us
- We agree the colour with you first
- Rated 4.9 stars on Google
- A sealant colour to suit the surroundings
- More than 20 years in sealant work
See what affects the cost or our reviews.
How we handle remedial sealant in Longforgan
Movement and expansion joints fail when the sealant can’t stretch. The old sealant comes out and backing goes in to control the depth, then a flexible sealant matched to the movement goes in. We work on expansion joints, leaking tray & enclosure joints and mouldy bath & shower sealant, and common reasons people get in touch are movement joints that have split or pulled away and worktop sealant that has shrunk and split.
Bathrooms in smaller places like Longforgan work just as hard as those in the cities. Limescale is less of a problem with Scotland’s generally soft water, but mould still takes hold in damp sealant and grout.
Each job carries a 12-month guarantee, whatever its size.
- Where
- Longforgan (DD2)
- Region
- Dundee
- Cover
- 12 months on all our work
- Price
- A clear quote up front
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
When something else is needed
To be straight with you, some problems need a different trade:
- A tray or worktop that needs refixing first
- Leaks from a shower valve, waste or pipework (a plumber’s job)
- Old mastic in a building from before 2000 that should be checked for asbestos before it’s disturbed
If you are not sure, just send an email to info@mrmastic.co.uk and we will give you a straight answer.
Where we work in Longforgan
- Shrunken worktop sealant
- Expansion joints
- Failed movement joints
- Botched or over-sealed joints
- Leaking tray & enclosure joints
- Mouldy bath & shower sealant
Different surfaces, different methods
Windows & doors
Smeared or badly matched mastic can be cut out and redone neatly, in a colour that suits the frame.
Mouldy bath & shower sealant
Black mould inside the bead will not scrub out. All of it comes out, and the joint is treated and dried ahead of a new anti-fungal bead.
Also near Longforgan
Other services in Longforgan
Longforgan homes and their sealant
Longforgan 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. Scotland’s water is generally soft, so sealant and grout see less limescale than in much of England. 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 Longforgan Parish Church, bathrooms in older houses have often been refitted more than once, with sealant laid over sealant.
Longforgan is about 6 miles west of Dundee, in Dundee. Wherever you are in the DD2 postcode area, our applicators can take on remedial sealant. We cover 50 towns and villages across Dundee, from the larger towns to small villages. Our Dundee page covers work nearby, about 6 miles away.
We work across DD2 for remedial sealant and the streets around it. Remedial sealant is available to properties on Main Street, Dorward Place and Paterson Place. Neighbouring places we cover for remedial sealant include Inchture (2 miles south-west), Kingoodie (2 miles east), Invergowrie (2 miles north-east), Fowlis (2 miles north) and Liff (2 miles north-east). Larger places within reach include Dundee (6 miles east), Broughty Ferry (10 miles east), Stobswell (6 miles east), Monifieth (11 miles east), Blackness (5 miles east) and Barnhill (10 miles east).
What’s near Longforgan
The closest station to Longforgan is Invergowrie station, about 2.5 miles east of the centre. Other landmarks nearby include Royal Dundee Liff Hospital (2.7 miles north-east) and Castle Huntly (0.7 miles south-west). Not far away are Rossie Lake and Balgay Hill.
Your questions about remedial sealant in Longforgan
Can you help a landlord with a rental near Invergowrie station?
Yes, we work for letting agents and landlords. You can send an email to info@mrmastic.co.uk with the address and a few details, and we’ll give you a fixed price before work begins.
Do you cover Longforgan for remedial sealant?
Yes, Longforgan is within the area we cover. Our work covers the whole of Scotland. Just email us at info@mrmastic.co.uk with a few details of the job.
Is there any odour?
Possibly a little. Any smell clears as the sealant cures.
Where are you based?
We are a Crawley-based firm. Our area covers South East England, London and Scotland.
Do I have to be there?
Access is agreed with you when the job is booked. Indoors, that normally means someone at home.
Is remedial work guaranteed?
Yes, with our 12-month guarantee. If we have pointed out another problem, getting it fixed helps the new joint last.
Someone sealed over the old bead. Can you fix it?
Yes. We cut out all the layers and clean off the film, before resealing with a single bead.
Do you do commercial work?
Yes. Larger jobs can be planned room by room or area by area.
Work for landlords, hotels and businesses
Landlords and agents in Longforgan can book us as well as householders. Resealing between tenancies keeps a property looking cared for.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. We can quote for more than one property at once.
What we do, step by step
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. Somewhere like Longforgan may be a longer drive, and the journey is planned ahead. Tell us about tracks, gates, a ferry crossing or anything unusual about getting there.
- We protect the surfaces around the joint.
- Every layer of failed sealant is stripped out.
- The joint is degreased and checked for movement and leaks.
- Once dry, a suitable sealant is applied and tooled.
- We give you the cure time and explain what caused the failure.
Preparing for the visit
- Let us know if you’ve seen damp or leaks
- Mention any parking rules near the property
- Let us know about earlier repairs to the joints
Ask for a quote
It all starts with a short chat. Describe the problem, the location and the size of the job, and we’ll talk you through what we’d do. When it suits you, email us at info@mrmastic.co.uk.
Advice
How to look after the new joints
Once the sealant has cured, a few habits help it last:
- Keep an eye on the ceiling below the bathroom
- Ask why a joint failed before redoing it
- Act on a lifting corner right away
- Air the bathroom so the sealant can dry
Keep an eye on the joint at first, especially if movement was the problem. Should anything change, email us at info@mrmastic.co.uk.
Do not keep resealing the same joint. Get the cause found first, or the next bead will go the same way.
What we’re called out for in Longforgan
One of the commonest remedial jobs is sealant on top of sealant. Silicone doesn’t bond to silicone, so the top layer lifts and water and mould collect between the two.
Look out for any of the following:
- Gaps opening along the back of the worktop
- Black mould underneath the bead
- Wide, uneven beads that look worse than the old ones
- Beads that never stuck properly
Rented homes near Invergowrie station change hands often, and a joint that keeps failing is best fixed properly while the property is empty.
Questions to ask before booking
- How long the guarantee is
- Whether the sealant suits the joint
- How hidden problems are handled
- Whether you can choose the colour