East Lothian · Scotland
Remedial Sealant in Dunbar
Removing failed, mouldy or leaking sealant and putting it right in Dunbar, with a one-year guarantee on every job. Ask us for a quote.
- Thick, messy sealant smeared over tiles
- Sealant that came away because the surface wasn’t prepared
- A shower that leaks however often it’s resealed
Looking after it afterwards
So the new joints stay in good condition:
- Find out why the sealant failed first
- Air the bathroom so the sealant can dry
- Do not wait for a small gap to become a leak
- Have loose fittings fixed before resealing
Keep the room ventilated: use the extractor or open a window after showering.
Mould trapped under over-sealed joints spreads unseen. By the time it shows through, the joint is well past saving.
Remedial sealant in Dunbar, done properly
Two decades of sealant work means we recognise most failures quickly. We are fully insured ARBOMaster approved applicators, and every remedial job comes with a 12-month guarantee. We work on failed movement joints, shrunken worktop sealant and leaking tray & enclosure joints, and people most often call us about floor or wall movement joints that have failed and mould trapped under a layer of silicone.
In and around a place like Dunbar, homes range from older stone-built properties to newer houses. Older buildings can move a little, and that shows first in cracked grout and split sealant.
Each job carries a 12-month guarantee, large or small.
- Place
- Dunbar (EH42)
- Region
- East Lothian
- Guarantee
- One year on every job
- Price
- A clear price before work begins
- info@mrmastic.co.uk
- Updated
- 26 October 2026
For landlords and businesses
We work for landlords and agents as well as householders. Resealing between tenancies is a simple way to keep a property in good order before the next move-in.
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Resealing at the right time is simple maintenance that we can handle for you.
What happens on the day
Most of a good job is in the preparation, so that’s where we spend the time. Every joint is cleaned and dried before new material goes in. In total, it usually takes a few hours, depending on how many layers have to come out. Outdoor work around Dunbar depends on the weather, as sealant needs a dry surface, so an outdoor job can move if the forecast changes. Work indoors is not affected.
- 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’re told about anything else we found.
Before we arrive
- Clear the area around the work
- Let us know about stairs, lifts or work at height
- Let us know about earlier repairs to the joints
Getting a quote
There’s no standard price list, as no two jobs are quite the same. Instead, we send you a clear quote for your job. To arrange one, email us at info@mrmastic.co.uk.
Related advice
Bathrooms and kitchens in Dunbar
Dunbar 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, and sealant and grout that work that hard wear out sooner. There are hotels and other places to stay in and around Dunbar. Hotel bathrooms are part of our work as well as homes, and can be done room by room.
For landlords with property near Dunbar station, failed or mouldy sealant is worth putting right between tenancies, before it turns into a leak. Homes close to Abbey Church of Scotland include some older properties, and bathrooms in older houses have often been refitted more than once, with sealant laid over sealant.
Dunbar is about 26 miles east of Kirkcaldy, in East Lothian. If you need remedial sealant in Dunbar, it’s easy to get a quote: please drop us a line at info@mrmastic.co.uk. We are based in Crawley and cover East Lothian, Dunbar included. We cover 48 towns and villages across East Lothian. Edinburgh is on our list too, about 27 miles from Dunbar.
Every address in EH42 is covered for remedial sealant. Streets in the area include High Street, Bruntsfield Crescent and Leslie Way, and we cover them all. With the A1087 close by, Dunbar is simple for us to get to for remedial sealant. Close by, we work in Belhaven (1 mile west), Broxburn (1 mile south-east), West Barns (1 mile west), Bielside (1 mile west) and Spott (2 miles south). Further out, we also cover Haddington (11 miles west), North Berwick (9 miles north-west), Longniddry (15 miles west), Gullane (12 miles west), East Linton (5 miles west) and Aberlady (13 miles west). Dunbar is among the bigger towns we cover in East Lothian.
Around Dunbar
Typical jobs here are in homes near The Volunteer Arms. Dunbar has its own railway station: Dunbar station. A little further out are Dunbar Town House Museum and Gallery (less than half a mile north-east) and Belhaven Hospital (0.7 miles west). Not far away are Doon Hill.
Other services in Dunbar
What sealant work can’t fix
Some problems need a builder, plumber or other trade rather than us:
- Movement from fittings that are not supported
- Old mastic in a building from before 2000 that should be checked for asbestos before it’s disturbed
- Cracks in the fitting rather than the joint
If you are not sure, just drop us a line at info@mrmastic.co.uk and we will give you a straight answer.
Joints and surfaces we work on
- Botched or over-sealed joints
- Shrunken worktop sealant
- Expansion joints
- Leaking tray & enclosure joints
- Mouldy bath & shower sealant
- Failed movement joints
Dunbar questions
I let a flat near Dunbar station. Can you help?
Yes, we work for landlords and agents. 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 any work starts.
Do you work for hotels and guest houses in Dunbar?
Yes, hospitality work, including hotels, is part of what we do. Jobs can be programmed room by room, with out-of-hours working possible to arrange.
Do I have to be there?
If the work is inside, we need someone to let us in. After that, you can carry on with your day.
Do you offer different sealant colours?
We will suggest a colour to suit the surroundings. The product needed can limit the range.
Can you do several jobs on one visit?
Yes, we can. More than one area can go on one quote.
Are you an approved applicator?
Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.
What if the leak is not the sealant?
That is why we look for the cause first. If the fault is elsewhere, you will know before any work is done.
Will there be a smell?
Sometimes, a little. It fades as the sealant cures.
Can I do it myself?
If you’re set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
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.
Why deal with it now?
Another bead over the top won’t fix a failed joint. It doesn’t grip the old layer, so the leak carries on and there’s now more to remove. In an older home around Dunbar, damp from a failed joint can get into timber and plaster, which is a far bigger job than the sealant.
There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote and we will talk you through it.
What you get with us
- A 12-month guarantee on all work
- Sanitary silicone with an anti-fungal additive in wet areas
- We agree the colour with you first
- Quality sealants from Arbo and Everbuild
Different surfaces, different methods
Windows & doors
A frame that keeps leaking may not be the mastic. We check the joint and tell you if it looks to be something else.
Over-sealed & botched joints
Thick, smeared sealant looks messy and hides problems. We strip it back so we can see the joint, then reseal neatly.