Aberdeen · Scotland
Banchory-Devenick External Mastic
Sealing brickwork movement joints, render, cladding and façade joints for homes and businesses in Banchory-Devenick and across Aberdeen. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Weeds or debris growing in open joints
- Brick movement joints where the sealant has split
- Water getting into walls through failed joints
What external mastic looks like in Banchory-Devenick
Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and sound outside sealant is part of that. Historic houses like Friendville (about 1.6 miles north-east) are a reminder that the area around Banchory-Devenick has older buildings as well as new. Where a home is older, older brick and stone need a sealant that suits them, at the right joint depth.
If you let a flat or house near Aberdeen station, split movement joints are easy to miss on a rental until damp shows inside. Managing a site like Cults Academy? Then its movement joints, gutters and trims need looking after like any other building’s.
Banchory-Devenick is about 3 miles south-west of Ferryhill, in Aberdeen. We carry out external mastic for homes and businesses in Banchory-Devenick and the surrounding area, as part of our work across Aberdeen. Across Aberdeen, we cover 63 places, Banchory-Devenick among them.
All of AB15, AB10 and AB12 is within our area for external mastic, from the main roads to the quietest streets. We cover properties on Inchgarth Road and Inchgarth Mews and the roads around them. We also cover Cults (1 mile north-west), Garthdee (1 mile north-east), Braeside (1 mile north), Kaimhill (1 mile north-east) and Broomhill (2 miles north-east). We also work in nearby towns such as Aberdeen (3 miles north-east), Rosemount (3 miles north-east), Berryden (3 miles north-east), Ferryhill (3 miles north-east), New Aberdeen (3 miles north-east) and Dyce (6 miles north).
What’s near Banchory-Devenick
We work in homes and buildings around Hazlehead Park, among other places. Banchory-Devenick’s nearest station is Aberdeen station, about 3 miles north-east of the centre. A little further out are Pitfoddels Castle (within half a mile north-east) and Trinity Centre (3.1 miles north-east). Green spaces nearby include Rubislaw Quarry and Blue Hill.
How we handle external mastic in Banchory-Devenick
Low-level joints can usually be done from the ground. Where joints are higher up, tell us about the building when you get in touch and we will confirm what access is needed. If you are dealing with rain getting behind render or cladding at a joint and movement joints with cracked, split or missing sealant, we can help.
Older stone buildings need a sealant that suits the stone, not an acetoxy product that can mark or attack it. On newer homes, the movement joints and roofline trims are what need watching.
We stand behind the work with a one-year guarantee.
- Place
- Banchory-Devenick (AB15, AB10, AB12)
- Wider area
- Aberdeen
- Guarantee
- One year on every job
- Quote
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Other services in Banchory-Devenick
Your questions about external mastic in Banchory-Devenick
Can you do external mastic in Banchory-Devenick?
Yes. We work across all of Scotland, and Banchory-Devenick is part of that. You can email us at info@mrmastic.co.uk and let us know what needs doing.
Will you come out to Banchory-Devenick?
Yes, we do. Our work covers the whole of Scotland, and smaller places are part of that. Longer journeys are simply planned in advance.
What should I tell you?
Where the job is, what the problem is and roughly how big it is. Photos by email help too.
Do you remove the old sealant?
Yes, every time. New sealant will not bond properly to old, so any old material comes out before anything new goes in.
What is a movement joint?
Brickwork, render and cladding all move a little, and planned joints take up that movement. The gap is sealed with a flexible sealant over backing rod.
Will it make a mess?
Tidy work is part of the job. Nearby surfaces are protected, and the area is left clean when we finish.
Do I have to be there?
That depends on where the joints are. For work indoors, someone needs to let us in.
How long before the joint can be used?
It depends on the product and the conditions. We tell you how long to leave it before we go.
When something else is needed
Sealant isn’t the answer to every problem, and we’ll tell you before we start. Sealant won’t put right:
- Structural movement, which needs a surveyor or engineer
- Cracks in the bricks or render themselves, away from the joints
- Rising or penetrating damp from elsewhere in the wall
Not sure which it is? You can drop us a line at info@mrmastic.co.uk and we will tell you honestly.
Where we work in Banchory-Devenick
- Copings & trims
- Façade panels
- Concrete & block
- Render & cladding joints
- Joints between brick and frames
- Brickwork movement joints
What happens on the day
All our tools and materials come with us in the van, so you don’t need to buy or prepare anything. Once we’ve agreed what’s being done, the area is protected and the work begins. Most jobs take anything from a few hours to several days, depending on the building. Somewhere like Banchory-Devenick 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.
- First we look over the joints with you, agree which to renew and talk through access.
- We cut out the failed sealant and rake out any dirt or growth.
- Both sides are cleaned back to sound material and primed if needed.
- Closed-cell backing rod is fitted to set the depth and stop three-sided bonding.
- The new sealant, chosen to suit the brick or render, is applied and tooled to a neat finish.
Getting ready for the visit
- Try not to wet indoor joints just before the visit
- Mention any tricky access
- Tell us if parking is tricky
How to get a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Tell us about the joints that need doing and we’ll explain what’s involved before giving you a price.
Read more
For landlords and businesses
We also work for property managers and facilities teams in Banchory-Devenick and across Aberdeen. We can quote a run of properties together, and we’re fully insured.
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance that we can handle for you.
What the job involves on each surface
Concrete and blockwork
Concrete and block walls shrink as they dry and move with temperature. Their movement joints are sealed over backing rod with a flexible sealant.
Joints between dissimilar materials
Wherever two materials meet, they move differently. A flexible sealant bridges the two.
What affects the quote in Banchory-Devenick
You will get a clear quote before we start. It’s based on:
- Which sealant suits the joint
- The number of rooms or windows
- Working hours on commercial sites
- How much there is to do
Combining jobs into one visit is generally more efficient than separate visits. We will send you a clear quote for the lot.
Asking for a quote
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- Pictures of the joints, sent by email
- Where the job is, and your postcode
- If it’s domestic, commercial or a hotel
- What’s wrong with the joints now
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and add pictures by email if you can.
Signs you need external mastic in Banchory-Devenick
Many joints fail because they were sealed too deep or with nothing behind them. If the sealant sticks to the back as well as the sides, it can’t stretch and tears as soon as the joint widens.
Most people get in touch after spotting something like this:
- Damp patches traced to an open external joint
- Hard, crazed mastic that has stopped moving
- Failed sealant between panels on a façade
- Failed seals between different materials
If you live in an older home near St Devenick's Church, old and new materials meet at the roofline and walls, which is where sealant earns its keep.
Before you book anyone
- How the colour is chosen
- Which sealant they’ll use, and why
- What happens if the job turns out different
- What guarantee comes with the work
Can I do it myself?
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.