Aberdeen · Scotland
Whitecairns External Mastic
Sealing brickwork movement joints, render, cladding and façade joints in Whitecairns, with a one-year guarantee on every job. Ask us for a quote.
- Weeds or debris growing in open joints
- Old sealant gone brittle and cracked
- Failed sealant between panels on a façade
External mastic in Whitecairns, done properly
Ground-floor and low-level joints are straightforward to reach. For joints higher up, give us some details of the building and we will confirm what’s needed to reach them safely. Common call-outs are for joints where the bead has come unstuck and movement joints filled with mortar instead of sealant, across façade panels, joints between brick and frames and copings & trims.
Stone walls need a stone-friendly sealant, as acetoxy products can attack some stone. Newer houses need their movement joints and roofline trims kept sound.
A one-year guarantee comes as standard, so you’re covered after we have gone.
- Where
- Whitecairns (AB23)
- Wider area
- Aberdeen
- Cover
- 12 months on all our work
- Price
- A clear price before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
How the job changes by surface
Joints between dissimilar materials
Joints where frames, sills or panels meet the wall are common leak points. We cut out the old sealant and reseal with a product suited to both surfaces.
Cladding and façade panels
Where a cladding system has its own specified sealant, we follow it, or one the system allows. Send us any details you have about the façade.
What happens if it’s left?
Water gets in through a failed movement joint and can run behind render or cladding. Resealing early keeps the job to the joint itself, instead of the wall and finishes around it. Around Whitecairns, water from a failed joint in an older stone home can soak into timber and plaster.
Rather than a set price list, we look at what your job involves: how many joints, what’s in them now and how we reach them. You will know the price before we begin.
Why us?
- More than 20 years in sealant work
- A choice of colours where the product allows
- We never seal over old sealant
- You choose the colour before work begins
Take a look at what affects the cost and our reviews.
The process
When we arrive, we start by going over the job with you, so you know exactly what we’re doing. We protect the surfaces around the joints before any work begins. Most jobs take a few hours for a handful of joints, longer for a whole elevation. Around Whitecairns, distance and access matter more than parking. Let us know how to find you and how to reach the joints.
- 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.
Getting ready for the visit
- Tell us about any water getting in
- Tell us about any previous sealing or DIY attempts
- For business premises, tell us about site rules or sign-in
How to get a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Describe what needs sealing and we will talk you through the work before giving you a price.
Advice
Outside joints around Whitecairns
Aberdeen’s nickname, the Granite City, comes from its stone buildings, and sealing against granite needs clean, sound edges and a sealant that suits stone. 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.
Around Whitecairns, as everywhere, external mastic is only as good as the preparation behind it.
Whitecairns is about 7 miles north of Aberdeen, in Aberdeen. We provide external mastic to homes and businesses in Whitecairns and the surrounding area, as part of our work across Aberdeen. 63 places in Aberdeen are on our list, large and small. Aberdeen is on our list too, around 7 miles away.
Every address in AB23 is covered for external mastic. Other places close to Whitecairns include Kingseat (1 mile north-west), Belhelvie (2 miles east), Hill of Keir (2 miles east), Potterton (2 miles south-east) and Kinmundy (2 miles west). Further out, we also cover Aberdeen (7 miles south), Rosemount (7 miles south), Berryden (7 miles south), Ferryhill (8 miles south), New Aberdeen (8 miles south) and Dyce (4 miles south-west).
Local landmarks in Whitecairns
For rail, the closest station is Dyce station, about 4.1 miles south-west of the centre. Nearby you will also find Kingseat Hospital (1.2 miles north-west). Green spaces nearby include Corby Loch and Badgers' Hill.
When it is not the sealant
New sealant cannot fix everything, and we will tell you before work begins. Sealant will not put right:
- Adding movement joints to masonry that has none
- Failed render or damaged cladding panels
- Damp that is not coming from the joint
If you’re not sure, just drop us a line at info@mrmastic.co.uk and we will give you a straight answer.
What we seal
- Brickwork movement joints
- Joints between brick and frames
- Render & cladding joints
- Façade panels
- Copings & trims
- Concrete & block
What we’re called out for in Whitecairns
Every building moves. Clay bricks expand slightly over their life, concrete and block shrink, and everything moves with temperature and wet. The sealant in the movement joints takes that strain.
These are the problems we’re asked about most:
- Joints pointed up with cement by mistake
- Gaps where render, brick and frames meet
- Sealant pulling away from one side of the joint
- Leaking joints around cladding and façade panels
If you let a flat or house near Dyce station, split movement joints are easy to miss on a rental until damp shows inside.
What your quote should include
- Who turns up on the day
- Is the old sealant removed completely?
- What product goes in the joint
- The length of the guarantee
Questions from Whitecairns
I let a flat near Dyce station. Can you help?
Yes, we work for landlords and agents. Just email us at info@mrmastic.co.uk and tell us about the property, and we’ll send you a clear quote.
Do you cover Whitecairns for external mastic?
Yes, Whitecairns is within the area we cover. Our work covers the whole of Scotland. Just email us at info@mrmastic.co.uk with a few details of the job, and we’ll give you a clear quote.
Can you match the colour of my brickwork?
There’s a good range of exterior colours, including greys, browns, whites and stone tones. We pick the one that suits your wall best so the joint does not draw the eye.
How long will you be here?
Most jobs take a few hours to a few days, depending on the length of joint and the access, including preparation and clearing up. Your quote will say how long we expect yours to take.
Should I try DIY first?
That depends on the joint. High-level, external movement and fire-rated joints are professional jobs, while a short indoor joint may be within reach.
Will it make a mess?
Tidy work is part of the job. We protect what’s around the joints, and we clear up when we are done.
Do you remove the old sealant?
Yes. We cut out all the old sealant and clean the joint before applying anything new.
Where do you work from?
Mr Mastic is based in Crawley. We cover Whitecairns and the rest of Aberdeen.
Landlords, agents and businesses in Whitecairns
In hotels, rooms out of use cost money, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.
Also in Whitecairns
Looking after it afterwards
Once the sealant has cured, a few habits help it last:
- Keep high-pressure jets off the joints
- Leave the joints unpainted unless we’ve said otherwise
- Do not let climbing plants root in the sealant
- Act on the first splits you see
Have a quick look at the joints each spring. Watch for splits, edges coming away or growth in the joint.
Act while the splits are small. Then it’s a straightforward cut-out and reseal before water has had years to get in.