Dumfries and Galloway · Scotland
Mochrum External Mastic
Sealing brickwork movement joints, render, cladding and façade joints for homeowners, landlords and businesses in Mochrum. Fully insured, ARBOMaster approved and guaranteed for a year.
- Cracked joints where brick meets render or frames
- Brick movement joints where the sealant has split
- Water getting into walls through failed joints
How we handle external mastic in Mochrum
On houses, flats and commercial buildings across Mochrum, we reseal joints in brickwork, render, cladding and façade panels. The preparation is the same whatever the wall: clean, sound faces and a controlled depth. If you’re dealing with joints pointed up with cement by mistake and moss and dirt in joints with no sealant left, we can help, whatever the surface.
In and around a place like Mochrum, many buildings face open ground and take the full weather. Gutter joints and wall joints take a battering.
You’re covered for a year from the day we finish. If there’s a problem with it, please email us at info@mrmastic.co.uk.
- Location
- Mochrum (DG8)
- Region
- Dumfries and Galloway
- Cover
- 12 months on all our work
- Quotes
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Quotes for external mastic in Mochrum
You will get a clear quote before any work starts. It takes into account:
- Any working-time requirements on site
- The size of the job
- Any mould that needs treating
- How much old sealant there is and how hard it is to remove
Commercial jobs are quoted on the same basis as homes: the amount of work, how we reach it and what it needs, along with when we can work on site. Call for a quick quote and we’ll explain what it covers.
Asking for a quote
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- The address or postcode of the job
- Any previous sealing or DIY work
- Pictures of the joints, sent by email
- Whether it’s a home or a business
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and email pictures if that’s easy.
Mochrum buildings and the weather
Mochrum is within about 2 miles of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That’s hard on movement joints and outside wall joints, especially on the side facing the sea. Harled (roughcast) walls are common in Scotland, and joints where harling meets other materials need a sealant that can grip and flex.
Around Mochrum, as everywhere, external mastic is only as good as the preparation behind it. In the older streets around Kirk of Mochrum, old and new materials meet at the roofline and walls, which is where sealant earns its keep.
Mochrum is about 20 miles south-east of Stranraer, in Dumfries and Galloway. Wherever you are in the DG8 postcode area, we can carry out external mastic at your property. Across Dumfries and Galloway, we cover 138 places, and Mochrum is one of them. There’s also a page for Glasgow, roughly 75 miles from Mochrum.
Our applicators cover all of the DG8 postcode area for external mastic. Other places close to Mochrum include Elrig (2 miles west), Port William (2 miles south), Monreith (3 miles south), Whauphill (4 miles north-east) and Sorbie (6 miles east). Within a short drive, we also cover Newton Stewart (12 miles north), Wigtown (8 miles north-east), Creetown (11 miles north-east), Minnigaff (13 miles north) and Whithorn (7 miles south-east).
Landmarks near Mochrum
A little further out are Myrton Castle (2.1 miles south-east). For a walk, there’s White Loch of Myrton and Mochrum Fell.
What we do, step by step
You do not need to clear the whole room or building before we come, just the space around the work. We protect the rest, and the job takes anything from a few hours to several days, depending on the building in most cases. Outside jobs in Mochrum need a dry day, because sealant won’t bond to a wet joint, so external jobs may need to move if the day turns wet. Indoor work goes ahead whatever the weather.
- Each joint is checked and the colour of the new sealant agreed.
- We take out the old sealant until the faces are sound.
- Backing rod goes in so the sealant can stretch between the two faces.
- Primer is applied wherever the sealant needs it.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
Preparing for the visit
- Where the joints are inside, avoid wetting them before we arrive
- For business premises, tell us about site rules or sign-in
- Clear items away from the joints we’re working on
How to get a quote
We do not publish a price list, because every job is different. Instead, your job gets its own clear quote. To arrange one, drop us a line at info@mrmastic.co.uk.
Related advice
Questions from Mochrum
Do you cover smaller places like Mochrum?
Yes. Mochrum is within the area we cover, which takes in towns, villages and rural addresses. Our work covers the whole of Scotland. Just mention lanes, gates or anything else about the route when you book.
Does the coastal weather in Mochrum affect outside sealant?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. Choosing the right sealant for the frame and wall, laid at the right depth, helps it last.
Can I do it myself?
Some simple jobs can be done by a careful DIYer. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
I rent my home. Can I book you?
Of course. Check with your landlord; we can send the quote to them too.
Do you hold any approvals?
Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.
Can a movement joint be filled with mortar?
No, not if it’s a movement joint. Filling it with mortar defeats its purpose and can lead to cracking. We will reseal it with a flexible sealant.
Is there a guarantee?
Yes. All our work carries our one-year guarantee.
How long before the joint can be used?
Different products cure at different speeds, so please follow the time we give you.
Landlords, agents and businesses in Mochrum
If you manage several properties in or around Mochrum, several properties can go on one quote. Send us the addresses and the work at each, and pictures by email help.
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
More services for Mochrum
What the job involves on each surface
Joints between dissimilar materials
Each side of the joint may need its own preparation. We prepare both faces so the sealant bonds properly.
Concrete and blockwork
Big joints in concrete need careful depth control. We size the backing rod to the gap and keep the sealant to the right depth.
What sealant work cannot fix
Before you book, it’s worth knowing the limits:
- Cracking across the wall rather than at a joint
- Rising or penetrating damp from elsewhere in the wall
- Render that is blown, hollow or coming away
If in doubt, email us at info@mrmastic.co.uk and we will say what we think before booking.
What we seal
- Brickwork movement joints
- Façade panels
- Render & cladding joints
- Joints between brick and frames
- Concrete & block
- Copings & trims
Leave it or put it right?
Water gets in through a failed movement joint, behind render and cladding. Dealing with it early keeps the repair to the joint, instead of the wall and finishes around 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.
Combining jobs into one visit is normally more efficient than separate visits. We’ll give you a clear quote for the lot.
What you get with us
- Domestic, commercial and hotel work
- Old sealant always removed completely
- White, clear, grey or coloured to suit, where the product allows
- Sealant colour chosen to suit
See our cost guide and what customers say.
Can I do it myself?
A DIY attempt doesn’t rule out a professional job. We cut it out and start again, so tell us about it when you ask for a quote.
If you do try it yourself, take your time over the 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.