Aberdeenshire · Scotland
Sandend External Mastic
Problem with your movement joints in Sandend? We cut out the old, prepare the joints and apply the right sealant, with a 12-month guarantee.
- Water getting into walls through failed joints
- Movement joints with cracked, split or missing sealant
- Weathered mastic that no longer stretches
Quotes for external mastic in Sandend
You will get a clear quote before we start. It’s based on:
- Mould in or behind the old joints
- Access and height
- The number and length of the joints
- Working hours on commercial sites
There are no prices on our website, because the cost depends so much on the job itself. For a quick quote, please drop us a line at info@mrmastic.co.uk.
Helping us quote
There’s no need for technical detail. Just tell us:
- Whether it has been sealed before
- Where the property is
- Pictures of the joints, sent by email
- Access, such as stairs, a lift or height
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and add photos by email if you can.
About our external mastic in Sandend
Many failed façade joints only get noticed once there’s a stain or a damp patch inside. We inspect them, agree which need doing and reseal with a weatherproof, flexible sealant. Typical jobs include hard, crazed mastic that has stopped moving and failed seals between different materials, across copings & trims, façade panels and brickwork movement joints.
Across smaller places in Scotland, stone and harled cottages, farm buildings and newer houses often stand exposed to wind and rain. Gutter joints and wall joints take a battering, so they need a sealant that moves with the building.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we’ll sort it.

- Location
- Sandend (AB45)
- Wider area
- Aberdeenshire
- Guarantee
- A year, on every job
- Price
- Quoted before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
How the job changes by surface
Brickwork movement joints
Brick walls have vertical movement joints to absorb expansion. They’re resealed over backing rod with a low-modulus sealant.
Concrete and blockwork
Concrete faces can be dusty and porous, so cleaning and priming matter. We prime where the sealant needs it before sealing.
What external mastic looks like in Sandend
Sandend is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on movement joints and outside wall joints, which can dry out and crack sooner where a building faces 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.
Around Sandend, as everywhere, external mastic is only as good as the preparation behind it.
Sandend is about 8 miles east of Buckie, in Aberdeenshire. Wherever you are in the AB45 postcode area, our applicators can take on external mastic. Our area takes in 161 places across Aberdeenshire. You can also see our page for Aberdeen, roughly 43 miles from Sandend.
We work across the AB45 postcode area for external mastic. Whether your property is on Seaview Road and The Bents or a nearby road, our applicators can take on the job. Neighbouring places we cover for external mastic include Fordyce (1 mile south), Portsoy (2 miles east), Lintmill (2 miles west), Cullen (3 miles west) and Portknockie (4 miles west). We also work in nearby towns such as Turriff (14 miles south-east), Banff (8 miles east), Macduff (10 miles east), Aberchirder (9 miles south-east), Gardenstown (15 miles east) and Whitehills (6 miles east). Remote and island addresses need a little more planning, so tell us where you are when you ask for a quote.
What’s near Sandend
Well-known places in the area include Fordyce Joiner's Workshop (1.3 miles south) and Campbell Hospital (1.8 miles east). Open spaces near Sandend include Durn Hill.
Common problems we fix in Sandend
Some movement joints have been pointed up with mortar by mistake. The joint can’t move, so the wall cracks somewhere else instead.
These are the problems we are asked about most:
- Water getting into walls through failed joints
- Joints pointed up with cement by mistake
- Movement joints with cracked, split or missing sealant
- Weathered mastic that no longer stretches
For site and facilities teams at buildings such as Fordyce Academy, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
What to look for in a quote
- How the joint is cleaned and prepared
- Who turns up on the day
- Whether you can choose the colour
- How hidden problems are handled
What else we do in Sandend
The process
When we arrive, we look over the joints with you first, so there are no surprises. Surfaces next to the work are protected before any work begins. Most jobs take a few hours for a handful of joints, longer for a whole elevation. In smaller Scottish places, parking is generally less of an issue than access and distance. Tell us how to find the property and how to reach the work, and the visit is planned around that.
- First, the joints are inspected and the access agreed.
- We cut out the old mastic and rake out anything in the joint.
- The faces are brushed clean and primed where the product requires it.
- We fit closed-cell backing rod to control the depth.
- We apply the sealant, tool it and check the whole run.
Before we arrive
- Move anything stored near the joints
- Tell us about any previous sealing or DIY attempts
- Keep pets and children clear of the area while we work
Getting a quote
To get a quote, email us at info@mrmastic.co.uk and tell us where the job is and what the problem looks like. You’ll have a clear quote before we start.
Related advice
Landlord and commercial work in Sandend
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
For anyone letting property in or around Sandend, several properties can go on one quote. Just tell us the addresses and what each one needs.
When it is not the sealant
New sealant cannot fix everything, and we’d rather say so up front. Sealant won’t put right:
- Failed render or damaged cladding panels
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
- Cracks in the bricks or render themselves, away from the joints
Not sure which it is? You can send an email to info@mrmastic.co.uk and we will tell you honestly before booking.
Joints and surfaces we work on
- Render & cladding joints
- Joints between brick and frames
- Copings & trims
- Façade panels
- Brickwork movement joints
- Concrete & block
Sandend questions
Is Sandend within the area you cover?
Yes, smaller places are covered as well as towns. Our work covers the whole of Scotland. Let us know about access, parking and anything unusual about getting there when you book.
Does living near the coast affect external mastic in Sandend?
Coastal homes put outside sealant through more weather than inland ones, so the choice of sealant and the preparation matter even more. Walls facing the sea are usually the first to need attention.
What do you put in the joint?
We choose the sealant for the joint, not the other way round. Movement, water and weather all affect the choice, and we’ll explain our choice.
How long does the job take?
Typically it takes a few hours for a handful of joints, longer for a whole elevation. Bigger jobs take longer, and we’ll say how long yours will take.
Do you work for hotels and businesses?
Yes. We work in offices, washrooms, hotels and other commercial premises. We can talk about working times 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. You’ll get a clear quote before we start.
Do the sealants smell?
It depends on the product. Some products have a noticeable smell, others very little.
What is a movement joint?
Most straight vertical gaps in brickwork are movement joints. It lets the bricks expand without cracking, and it should be sealed with a flexible sealant.
Aftercare tips
How long the joints last depends on use and care. Here’s what we suggest:
- Check the sealant is paintable before painting near it
- Show decorators and builders where the movement joints are
- Walk round the building once a year and look at the joints
- Fix overflowing gutters above sealed joints
Follow the cure time we give you before the joint is knocked or disturbed. Most exterior sealants skin fast but take longer to cure right through.
Gaps, plants or missing sealant in a joint are worth getting looked at. Earlier resealing means a smaller job and a better result.
