Dumfries and Galloway · Scotland
Howes Remedial Sealant
Removing failed, mouldy or leaking sealant and putting it right for homes and businesses in Howes and across Dumfries and Galloway. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Sealant applied over old sealant that has lifted
- Worktop sealant that has shrunk and split
- Caulk or the wrong sealant used in a wet area
Should I try it myself first?
A DIY attempt does not rule out a professional job. We cut it out and start again, 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 peels away and traps moisture behind it. All the old material has to come out first.
About our remedial sealant in Howes
Decorators’ caulk in a shower, bathroom silicone on a window, a rigid filler in a movement joint won’t last, however tidy it looks. Out it comes, and in goes a sealant suited to the job. We work on mouldy bath & shower sealant, botched or over-sealed joints and leaking tray & enclosure joints, and common reasons people get in touch are gaps opening along the back of the worktop and dark patches showing through the sealant.
Bathrooms in smaller places like Howes work just as hard as those in the cities. Generally soft Scottish water means less limescale, but steam still lets mould into sealant and grout.
The work is covered for a year after we finish. If there’s a problem with it, please send an email to info@mrmastic.co.uk.
- Place
- Howes (DG12)
- Wider area
- Dumfries and Galloway
- Guarantee
- One year on every job
- Quotes
- A clear quote up front
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
How we quote for remedial sealant
We don’t publish a price list, because no two jobs are the same. What we look at:
- Any mould that needs treating
- How much old sealant there is and how hard it is to remove
- The size of the job
- Access and height
There are no prices on our website, because each job is priced on what it involves. Call for a quick quote and we’ll talk you through it.
What to tell us for a quote
To make quoting easier, please include:
- Access, such as stairs, a lift or height
- Any previous sealing or DIY work
- A few pictures by email, if you can
- Roughly how big the job is
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is. When it suits you, drop us a line at info@mrmastic.co.uk.
What we can’t put right
Honest advice matters more to us than a booking, so here’s what new sealant will not do:
- Older mastics that may need an asbestos check before removal
- A tray or bath that’s cracked
- Plumbing leaks behind walls or under trays
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
- Failed movement joints
- Botched or over-sealed joints
- Leaking tray & enclosure joints
- Mouldy bath & shower sealant
- Shrunken worktop sealant
- Expansion joints
Keeping the joints in good condition
After the cure time, these simple habits help:
- Always have old sealant cut out, not covered
- Don’t wait for a small gap to become a leak
- Run the fan after every shower
- Never fill a movement joint with mortar or grout
If we’ve found a cause, such as a loose tray or a leaking waste, get it fixed, or the new joint may fail again.
Warning signs: sealant lifting at the ends, a second bead visible on top of the first, black mould under the silicone, or stains below a bathroom. Each one is worth getting looked at.
Common problems we fix in Howes
Some joints fail because water is reaching them from behind. A slow leak behind the tiles soaks the joint from the back, and the sealant lifts or goes mouldy from underneath.
If you can see any of these, it’s time to have the joints looked at:
- Decorators’ caulk around a bath or shower
- A second bead peeling off the first
- Smears and lumps from a botched reseal
- A shower that leaks however often it’s resealed
If you let a flat or house near Annan station, a joint that keeps failing is best fixed properly while the property is empty.
What your quote should include
- When the joint can take water or movement
- How the joint is cleaned and prepared
- What product goes in the joint
- Are they insured?
How the job changes by surface
Windows & doors
Wrong-coloured or messy mastic can be replaced for appearance too, matched to the frame colour.
Movement & expansion joints
Some movement joints have been filled with mortar or grout. We rake that out where it can be removed and seal with a flexible product.
Howes homes and their sealant
Howes is within about 2 miles 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. Howes has hotels and guest accommodation nearby. As well as homes, we work in hotel bathrooms, where resealing and regrouting can be done room by room.
If you look after a building such as Annan Academy, its toilets, changing areas and kitchens need their sealant renewed like any other building’s. For an older house near a landmark such as Old Parish Church, older homes can move a little, which is hard on rigid grout and tired sealant.
Howes is about 14 miles east of Dumfries, in Dumfries and Galloway. We carry out remedial sealant for homes and businesses in Howes. Our area takes in 138 places across Dumfries and Galloway, from the larger towns to small villages. Edinburgh is on our list too, about 66 miles from Howes.
Jobs for remedial sealant in DG12 is quoted and booked the same way as anywhere else. We also cover Annan (1 mile east), Newbie (1 mile south-west), Brydekirk (2 miles north), Powfoot (3 miles west) and Dornock (3 miles east). We also work in nearby towns such as Dumfries (14 miles west), Lockerbie (10 miles north), Heathhall (14 miles north-west), Langholm (15 miles north-east), Gretna (8 miles east) and Lochmaben (12 miles north-west).
Near you in Howes
In Howes, that means homes and buildings near Queensberry Arms Hotel. Howes’s nearest station is Annan station, roughly 0.6 miles south-east of the centre. Other landmarks nearby include Annan Museum (less than half a mile south-east) and Annan Hospital (0.9 miles east). Green spaces nearby include Campfield Marsh RSPB reserve.
What happens on the day
Every visit runs the same way: we look at the joints together, mask and protect the surrounding surfaces, do the work and tidy away. It usually takes a few hours, depending on how many layers have to come out. In smaller Scottish places, parking is generally less of an issue than access and distance. Let us know how to find you and how to reach the joints, and the visit is planned around that.
- First we find out how and where the joint has failed.
- We strip the joint completely, removing any layers below.
- The joint is cleaned, treated for mould and left to dry.
- Where the joint moves, backing and a flexible sealant suited to the movement go in.
- The new joint is tooled neatly and we explain anything else we found.
Preparing for the visit
- Plan for the work area to be out of bounds to pets and children
- Tell us about access, such as stairs, a lift or high-level joints
- Mention any sign-in or site rules at work premises
Ask for a quote
We quote each job on its own. Simply email us at info@mrmastic.co.uk and describe the job.
Advice
Your questions about remedial sealant in Howes
I let a flat near Annan station. Can you help?
Yes, rental work is part of what we do. You can email us at info@mrmastic.co.uk with the address and a few details, and we will give you a fixed price before work begins.
Do you take on hotel work around Howes?
Yes, hospitality work, including hotels, is part of what we do. Work can be planned room by room, and out-of-hours working can be arranged.
Is remedial work guaranteed?
Yes, with our 12-month guarantee. Where we’ve flagged another fault, it needs fixing for the joint to last.
How do I get a quote for remedial sealant in Howes?
Size, access and the old material all affect the cost. Call for a quick quote.
Does someone need to be in?
We need access to the joints, so we’ll agree that with you when we book. For inside work, that normally means someone being in.
Can I do it myself?
That depends on the joint. High-level, external movement and fire-rated joints are professional jobs, while a short indoor joint may be within reach.
What if resealing won’t fix my leak?
We’ll tell you. A cracked tray, faulty valve or leaking waste needs a different trade, and we will not reseal for the sake of it.
What sealant do you use?
Products from Arbo and Everbuild, among others, picked for each joint. We explain the product when we quote.