Aberdeenshire · Scotland
Aberchirder External Mastic
External mastic for Aberchirder, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Rigid filler in a joint that should flex
- Joints with sealant missing in places
- Joints where the bead has come unstuck
Why it’s worth doing now in Aberchirder
A failed movement joint lets water into the wall and can run behind render or cladding. Dealing with it early keeps the repair to the joint, instead of the wall and finishes around it. Around Aberchirder, water from a failed joint in an older stone home can soak into timber and plaster.
The cost reflects the work involved, not a rough estimate. That is why we ask a few questions first and send you a clear quote before we start.
What you get with us
- Arbo and Everbuild products
- Fully insured
- Approved under the ARBOMaster scheme
- Experience in homes, commercial sites and hotels
How we handle external mastic in Aberchirder
Failed sealant is cut out, the depth set with closed-cell backing rod, and the joint resealed with a low-modulus sealant made for outside. We pick a colour that sits well with the wall so the joint does not stand out. If you have rain getting behind render or cladding at a joint and old sealant gone brittle and cracked, we can help, on concrete & block, joints between brick and frames and brickwork movement joints alike.
Stone walls need a stone-friendly sealant, as acetoxy products can attack some stone. On newer homes, the movement joints and roofline trims are what need watching.
There’s a 12-month guarantee on every job.
- Location
- Aberchirder (AB54)
- Region
- Aberdeenshire
- Cover
- 12 months on all our work
- Price
- Quoted before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Towns and villages near Aberchirder
Also in Aberchirder
Aberchirder questions
Is Aberchirder in your area for external mastic?
Yes, Aberchirder is within the area we cover. We work across all of Scotland. Just email us at info@mrmastic.co.uk with a few details of the job.
Is Aberchirder within the area you cover?
Yes, Aberchirder is covered. Our work covers the whole of Scotland, and smaller places are part of that. Longer journeys are simply planned in advance.
Can you seal over the old sealant?
No. New silicone will not bond to old silicone, and anything trapped underneath, including mould and water, stays there. It all has to come out first.
What colours does the sealant come in?
We choose a sealant colour to suit the brick, stone or render so the joint blends in. Exterior sealants come in a good range of colours.
Do you take out the old sealant first?
Yes, always, and completely. New sealant will not bond properly to old, so the joint is cleaned back first.
Do you guarantee your work?
Yes, for a year. If anything isn’t right with the work within the year, let us know and we’ll sort it.
How long does external mastic last?
That depends on the wall, the weather and the movement. Signs to watch for are cracking, hardening and gaps at the edges, and reseal at that point.
Is there any odour?
Possibly a little. Any smell clears as the sealant cures, and ventilation helps.
How to look after the new joints
So the new joints stay in good condition:
- Wash walls gently around the sealant
- Clear growth from the base of walls and joints
- Keep water from gutters off the wall
- Tell anyone working on the walls about the movement joints
Only paint over the joint if we’ve confirmed the sealant can take paint. Paint can crack on a flexible joint.
Gaps, plants or missing sealant in a joint are worth getting looked at. Earlier resealing means a smaller job and a better result.
Landlords, agents and businesses in Aberchirder
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance that we can handle for you.
Can I do it myself?
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.
The process
On the day, we start by going over the job with you, so you know exactly what we are doing. We protect the surfaces around the joints before any work begins. The work generally takes a few hours to a few days, depending on the length of joint and the access. Somewhere like Aberchirder 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 inspect the joints and agree which need resealing and how they’ll be reached.
- We cut out the failed sealant and rake out any dirt or growth.
- We clean both faces of the joint and prime them where the product calls for it.
- We push in closed-cell backing rod so the sealant is the right depth and bonds to the sides only.
- We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.
How to prepare
- Let us know about parking restrictions
- Where the joints are inside, avoid wetting them before we arrive
- Let us know if you’ve seen damp or leaks
Getting a quote
Need a quote? Please email us at info@mrmastic.co.uk and tell us about the job. We’ll explain what we’d do and give you a clear price before we start.
Advice
When it is not the sealant
Honest advice matters more to us than a booking, so here’s what new sealant won’t do:
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
- Render that is blown, hollow or coming away
- Movement that is more than a sealant joint can take
If in doubt, send an email to info@mrmastic.co.uk and we will say what we think.
Surfaces we seal
- Brickwork movement joints
- Render & cladding joints
- Façade panels
- Joints between brick and frames
- Concrete & block
- Copings & trims
Signs you need external mastic in Aberchirder
Joints sealed without backing rod, or far too deep, rarely last. If the sealant sticks to the back as well as the sides, it cannot stretch and rips as the joint opens.
If you can see any of these, it’s time to have the joints looked at:
- Damp patches traced to an open external joint
- Rigid filler in a joint that should flex
- Plants rooting in failed movement joints
- Movement joints with cracked, split or missing sealant
Whether the job is in Aberchirder itself or nearby, the right material for each joint matters as much as a neat finish.
Before you book anyone
- What insurance they hold
- Who does the work, and how experienced they are
- What happens if the job turns out different
- Whether the sealant suits the joint
Outside joints around Aberchirder
Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and sound outside sealant is part of that. 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.
In and around Aberchirder, as anywhere, good external mastic starts with a clean, dry, properly prepared joint.
Aberchirder is about 15 miles south-east of Buckie, in Aberdeenshire. Jobs in Aberchirder get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Our area takes in 161 places across Aberdeenshire, large and small. Our Aberdeen page covers work nearby, about 34 miles away.
Our applicators cover all of AB54 for external mastic and the streets around it. Whether your property is on Main Street, School Lane and Rennie's Lane or a nearby road, our applicators can take on the job. Main roads around Aberchirder include the A97 and B9023, so getting to you is simple. We also cover the places around Aberchirder: Bogton (3 miles east), Cornhill (4 miles north-west), Milltown of Rothiemay (5 miles south-west), Turriff (6 miles east) and Boyndie (7 miles north). Further out, we also cover Huntly (10 miles south-west), Banff (8 miles north-east), Macduff (9 miles north-east), Portsoy (9 miles north), Insch (15 miles south) and Gardenstown (13 miles north-east). If you’re somewhere remote, a little more planning is needed, so mention it when you ask for a quote.
What’s near Aberchirder
Well-known places in the area include Kinnairdy Castle (2 miles south-west).