Moray · Scotland
External Mastic in Craigellachie
Professional external mastic in and around Craigellachie, with old sealant always removed completely.
- Brick movement joints where the sealant has split
- Joints pointed up with cement by mistake
- Hard, crazed mastic that has stopped moving
Landlord and commercial work in Craigellachie
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
Failed sealant is one of the commonest items on a check-out report. We can quote for more than one property at once.
About our external mastic in Craigellachie
We are ARBOMaster approved applicators, and each external joint gets a sealant suited to it. Porous or awkward surfaces are primed where the sealant needs it and we use one wherever it does. Typical jobs include gaps where render, brick and frames meet and failed sealant between panels on a façade, across render & cladding joints, copings & trims and brickwork movement joints.
External sealant needs dry surfaces, so outdoor work around Craigellachie is planned around the weather, and longer journeys are planned in advance. Let us know about access to every wall and roofline.
The work is guaranteed for twelve months. If something isn’t right with it in that time, tell us and we will put it right.

- Place
- Craigellachie (AB38)
- Region
- Moray
- Cover
- A year, on every job
- Quote
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
How it works
We keep the work tidy and contained to the area we are working on. The job usually takes anything from a few hours to several days, depending on the building. Outside jobs in Craigellachie 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.
- We look at every joint and agree a colour to suit the wall.
- 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.
Before we arrive
- Mention if the joints have been sealed before
- Mention any tricky access
- Mention any sign-in or site rules at work premises
How to get a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and email pictures if that is easy.
Read more
Do you need external mastic in Craigellachie?
A lot of failed joints come down to preparation: joint faces that were dusty or damp, unprimed where they needed it, or still carrying old sealant. The sealant never bonds properly.
The most common problems we see are:
- Sealant that has lost its bond to the brick or render
- Joints with sealant missing in places
- Old sealant gone brittle and cracked
- Weeds or debris growing in open joints
For an older house near a landmark such as Church Of Macallan And Burial Ground With Elchies Mausoleum, the joints between older walls, newer extensions and the roofline need a sealant that can move.
Questions to ask before booking
- How much experience the applicator has
- What the cure time is
- What happens if the job turns out different
- Which colour the sealant will be
How the job changes by surface
Brickwork movement joints
Brick moves with heat and moisture, and grows a little over time. That movement goes into the joint, so its sealant has to stay flexible.
Concrete and blockwork
Blockwork and concrete shrink over time and move with the seasons. Their movement joints are sealed over backing rod with a flexible sealant.
Towns and villages near Craigellachie
What else we do in Craigellachie
Keeping the joints in good condition
Good habits help new joints last longer. Our tips:
- Check the sealant is paintable before painting near it
- Never let anyone fill a movement joint with mortar
- Show decorators and builders where the movement joints are
- Look over the joints every year, ideally after winter
Don’t let soil, plants or ivy build up against the new joints. Anything that holds water against the joint wears it out sooner.
Leaks behind façade panels and render often go unseen. When it finally shows inside, the joint may have been open for years so early resealing is worth it.
DIY sealant or a professional job?
A DIY attempt doesn’t rule out a professional job. We cut it out and start again.
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Outside joints around Craigellachie
Plenty of Scottish homes have harled walls, 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 failed outside joints work against that.
In and around Craigellachie, as anywhere, good external mastic starts with a clean, dry, properly prepared joint.
Craigellachie is about 12 miles south-east of Elgin, in Moray. Every kind of property in Craigellachie is covered for external mastic, old or new, large or small. The work is guaranteed for a year. Across Moray, we cover 58 places, and Craigellachie is one of them. You can also see our page for Aberdeen, about 46 miles away.
Postcode districts we cover here for external mastic: AB38. We cover properties on Lawrence Road, John Street and Spey Road and the roads around them. Neighbouring places we cover for external mastic include Aberlour (2 miles south-west), Charlestown of Aberlour (2 miles south-west), Rothes (3 miles north), Dufftown (4 miles south-east) and Drummuir (6 miles east). Larger places within reach include Elgin (12 miles north-west), Buckie (15 miles north-east), Keith (9 miles north-east), Ashgrove (11 miles north), Fochabers (9 miles north) and Lhanbryde (10 miles north). Island and remote addresses take a little more planning, so tell us where you are when you ask for a quote.
What’s near Craigellachie
We work in homes and buildings around Fiddichside Inn and the streets around them. Nearby you’ll also find Fleming Cottage Hospital (2 miles south-west) and Ladycroft Agricultural Museum (2.7 miles west). Open spaces near Craigellachie include Loch Park and Ben Aigan.
What sealant work cannot fix
New sealant can’t fix everything, and we’d rather say so up front. Sealant will not put right:
- Movement that’s more than a sealant joint can take
- Render that’s blown, hollow or coming away
- Cracks in the bricks or render themselves, away from the joints
Not sure which it is? You can email us at info@mrmastic.co.uk and we’ll tell you honestly.
Joints and surfaces we work on
- Render & cladding joints
- Copings & trims
- Concrete & block
- Joints between brick and frames
- Façade panels
- Brickwork movement joints
Common questions in Craigellachie
Is external mastic in Craigellachie guaranteed?
All our work, in Craigellachie and everywhere else, comes with a 12-month guarantee. We are also fully insured and ARBOMaster approved.
Is Craigellachie in your area for external mastic?
Yes, Craigellachie is within the area we cover. We work across all of Scotland. Just drop us a line at info@mrmastic.co.uk with a few details of the job, and we’ll send you a clear quote.
Do you do commercial work?
Yes. We work in offices, washrooms, hotels and other commercial premises. Working times can be discussed when we quote.
What does external mastic cost?
There’s no set price, as it 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.
Should I try DIY first?
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.
Are you insured?
Yes. We’re fully insured, with over 20 years’ experience in sealant work.
Can you do several jobs on one visit?
Yes, and it often makes sense. Combining jobs makes good use of the visit.
Why is there a gap in my brick wall?
Most straight vertical gaps in brickwork are movement joints. It gives the wall room to move.
