Moray · Scotland
Dufftown External Mastic
External mastic for Dufftown, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Damp patches traced to an open external joint
- Sealant that has lost its bond to the brick or render
- Rigid filler in a joint that should flex
External mastic in Dufftown
We are ARBOMaster approved applicators, and each external joint gets a sealant suited to it. Some surfaces need a primer before sealing. If you have sealant pulling away from one side of the joint and cracked joints where brick meets render or frames, we can help, on copings & trims, joints between brick and frames and façade panels alike.
External sealant needs dry surfaces, so outdoor work around Dufftown is planned around the weather. Let us know about access to every wall and roofline.
You get a one-year guarantee, the same in Dufftown as everywhere else we work.

- Where
- Dufftown (AB55)
- Region
- Moray
- Guarantee
- One year on every job
- Price
- A clear price before we start
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Looking after it afterwards
How long the joints last depends on use and care. We suggest:
- Clear growth from the base of walls and joints
- Never let anyone fill a movement joint with mortar
- Deal with leaking gutters that soak the joints below
- Walk round the building once a year and look at the joints
Do not let soil, plants or ivy build up against the new joints. Damp material against the sealant shortens its life.
Act while the splits are small. Then it’s a straightforward cut-out and reseal.
Also near Dufftown
Other services in Dufftown
Landlord and commercial work in Dufftown
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements.
Landlords and agents in Dufftown can book us as well as homeowners. Resealing between tenancies keeps a property looking cared for before the next move-in.
DIY sealant or a professional job?
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.
If you are set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.
Your questions about external mastic in Dufftown
What guarantee comes with external mastic in Dufftown?
All our work, in Dufftown and everywhere else, comes with a 12-month guarantee. We are fully insured, and an ARBOMaster approved applicator.
Do you cover Dufftown for external mastic?
Yes. We work across all of Scotland, and Dufftown is part of that. Just drop us a line at info@mrmastic.co.uk with a few details of the job, and we’ll give you a clear quote.
I’m a tenant. Can you help?
Yes, though it’s best to check with your landlord first. Many landlords are glad to have it sorted.
How much does external mastic cost in Dufftown?
We don’t publish prices, because the cost depends on the job: how much there is, what’s there now, how we reach it and what it needs. We agree the price before any work begins.
Can I add another job to the visit?
Yes. More than one area can go on one quote.
Will the old sealant be removed?
Yes, always, and completely. New silicone doesn’t stick to old silicone, so any old material comes out before anything new goes in.
When is the sealant fully cured?
Many sealants skin over quickly but take longer to cure fully. We will tell you how long to leave the joint.
What’s an expansion joint in brickwork?
A movement joint is a planned break in the wall that absorbs expansion and shrinkage. It should be filled with flexible sealant, never mortar.
Dufftown buildings and the weather
Harled (roughcast) walls are common in Scotland, and where harling meets frames, pipes and other materials, the joint needs a flexible sealant that grips a rough surface. Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and sound outside sealant is part of that.
In and around Dufftown, as anywhere, good external mastic starts with a clean, dry, properly prepared joint. Homes close to St Mary of The Assumption include some older properties, and old and new materials meet at the roofline and walls, which is where sealant earns its keep.
Dufftown is about 15 miles south-east of Elgin, in Moray. We carry out external mastic for homes and businesses in Dufftown and nearby. Across Moray, we cover 58 places, Dufftown among them. Our Aberdeen page covers work nearby.
Here we cover the AB55 postcode area for external mastic. Whether your property is on Station Road, Queen Street and Louise Street or anywhere close by, we can help. You’ll find Dufftown on the A941 and B975, which makes it straightforward to reach. If you’re just outside Dufftown, we cover Craigellachie (4 miles north-west), Aberlour (4 miles north-west), Charlestown of Aberlour (4 miles north-west), Drummuir (5 miles north-east) and Rothes (6 miles north-west). Further out, we also cover Elgin (15 miles north-west), Ashgrove (15 miles north-west), Fochabers (11 miles north) and Lhanbryde (13 miles north). Remote and island addresses need a little more planning, so please mention your location when you email us at info@mrmastic.co.uk.
Landmarks near Dufftown
Typical jobs here are in homes near Princess Royal Park, Mortlach Parish Church and The Royal Oak pub. Nearby you’ll also find Dufftown Museum (under half a mile south) and Balvenie Castle (under half a mile north). For a walk, there’s Loch Park.
Surface by surface
Concrete and blockwork
Big joints in concrete need careful depth control. We size the backing rod to the gap.
Joints between dissimilar materials
Where a frame or panel meets masonry, water often finds a way in. We cut out the old sealant and reseal with a product suited to both surfaces.
When something else is needed
Before you book, it’s worth knowing the limits:
- Adding movement joints to masonry that has none
- Cracking across the wall rather than at a joint
- Loose or hollow render, which needs re-rendering
If in doubt, drop us a line at info@mrmastic.co.uk and we will say what we think before booking.
Surfaces we seal
- Façade panels
- Render & cladding joints
- Brickwork movement joints
- Concrete & block
- Joints between brick and frames
- Copings & trims
Why it’s worth doing now in Dufftown
It often makes sense to reseal all the failing joints on an elevation together. They’ve weathered the same way. Around Dufftown, water from a failed joint in an older stone home can soak into timber and plaster.
The cost depends on the size of the job, how hard the old material is to remove and access to the work. We give a clear quote before any work starts.
Why us?
- Tidy, careful work
- We are fully insured
- Rated 4.9 stars on Google
- Sealant colour chosen to suit
Read our cost guide and what customers say.
What we do, step by step
There is not much for you to do on the day. Show us the job and we’ll take it from there. The work itself takes anything from a few hours to several days, depending on the building from start to finish. Somewhere like Dufftown 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 start by walking round the building and agreeing the joints and the access.
- Every bit of old sealant and any mortar or debris is cut out.
- Joint faces are cleaned back and primed if the sealant needs it.
- We fit closed-cell backing rod to control the depth.
- We apply the sealant, tool it and check the whole run.
Getting ready for the visit
- Try not to wet indoor joints just before the visit
- Tell us about any previous sealing or DIY attempts
- Clear items away from the joints we’re working on
Getting a quote
For external mastic in Dufftown, drop us a line at info@mrmastic.co.uk. Tell us what the problem is and where, and you’ll get a clear quote before we start.
