Aberdeenshire · Scotland
Birsemore External Mastic
Sealing brickwork movement joints, render, cladding and façade joints in Birsemore, with a 12-month guarantee on every job. Call for a quick quote.
- Damp patches traced to an open external joint
- Cracked joints where brick meets render or frames
- Sealant that has lost its bond to the brick or render
External mastic in Birsemore: local notes
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. Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and failed outside joints work against that.
Managing a site like Aboyne Academy? Then movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Birsemore is about 11 miles west of Banchory, in Aberdeenshire. Jobs in Birsemore get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. We cover 161 towns and villages across Aberdeenshire, large and small. We also work in Aberdeen, about 26 miles from Birsemore.
Our applicators cover all of AB34 for external mastic and the streets around it. You’ll find streets such as Huntly Road, Bridge View Road and Charlestown Road, all of which we cover. Nearby, we also carry out external mastic in Aboyne (1 mile north), Dinnet (4 miles west), Kincardine O'Neil (4 miles east), Tarland (5 miles north-west) and Potarch (5 miles east). We also work in nearby towns such as Banchory (11 miles east), Alford (12 miles north), Ballater (10 miles west) and Torphins (7 miles north-east).
What’s near Birsemore
Nearby you will also find Aboyne Hospital (0.9 miles north-east) and Aboyne Castle (1.2 miles north). Not far away are Mortlich and Loch of Aboyne.
About our external mastic in Birsemore
Getting the depth right is half the job. Backing rod controls how deep the sealant goes and keeps it off the back of the joint, so it bonds to the two sides only and can stretch. We work on concrete & block, joints between brick and frames and façade panels, and people most often call us about damp patches traced to an open external joint and failed seals between different materials.
External sealant needs dry surfaces, so outdoor work around Birsemore is planned around the weather. Let us know about access to every wall and roofline.
All of our work is guaranteed for twelve months.
- Place
- Birsemore (AB34)
- Wider area
- Aberdeenshire
- Cover
- One year on every job
- Quote
- A clear price before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Common questions in Birsemore
Is external mastic in Birsemore guaranteed?
Every job comes with our one-year guarantee, wherever it is. We are fully insured, and an ARBOMaster approved applicator.
Is Birsemore in your area for external mastic?
Yes. We work across all of Scotland, and Birsemore is part of that. Just email us at info@mrmastic.co.uk with a few details of the job.
Do you hold any approvals?
Yes. Mr Mastic is an ARBOMaster approved applicator, and we are fully insured.
Is it worth trying it myself?
It depends on the job. High-level, external movement and fire-rated joints are professional jobs.
Do you work for letting agents?
Yes. As well as homeowners, we work for landlords, agents, businesses and hotels.
Which products do you use?
Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference, and we’ll tell you what we’re using.
What is backing rod for?
Closed-cell backing rod sets the depth of the sealant and stops it sticking to the back of the joint. That way it bonds to the two sides only and can stretch.
Where is Mr Mastic based?
Our base is in Crawley, West Sussex, and we work across South East England, London and Scotland.
DIY sealant or a professional job?
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.
Landlord and commercial work in Birsemore
Hotels need rooms back in use, so the work can be planned room by room. We have worked in hotels as well as homes and businesses.
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
Also in Birsemore
What we do, step by step
Most of a good job is in the preparation, and we don’t rush it. Joints are cleaned back and dried before anything new goes in. All told, the work takes a few hours to a few days, depending on the length of joint and the access. Around Birsemore, 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.
- Closed-cell backing rod is pushed in so the sealant bonds to two sides only.
- Primer is applied wherever the sealant needs it.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
How to prepare
- Plan for the work area to be out of bounds to pets and children
- For business premises, tell us about site rules or sign-in
- For indoor joints, keep the area dry beforehand if you can
Get a quote
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and email photos if that’s easy.
Read more
Leave it or put it right?
A failed movement joint lets water into the wall and can run behind render or cladding. Resealing early keeps the job to the joint itself, instead of the wall and finishes around it. Exposed walls in smaller Scottish places take a lot of wind and rain, and once water gets behind a failed joint, damp in stone or harled walls is slow to dry out.
Leaving a failed joint usually makes the job bigger, not smaller, as water and mould keep getting in. If you’re unsure, email us at info@mrmastic.co.uk for an honest opinion and a quote.
Why book with us
- You choose the colour before work begins
- An ARBOMaster approved applicator
- Homes, businesses and hotels
- 4.9 on Google from 180+ five-star reviews
Take a look at our cost guide or what customers say.
When it isn’t the sealant
We won’t take on work that will not last, so these are the limits:
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
- Cutting new joints into brickwork, which is building work rather than sealant work
- Failed render or damaged cladding panels
Not sure which it is? You can drop us a line at info@mrmastic.co.uk and we’ll tell you honestly before booking.
Where we work in Birsemore
- Render & cladding joints
- Copings & trims
- Façade panels
- Concrete & block
- Joints between brick and frames
- Brickwork movement joints
Common problems we fix in Birsemore
Sunlight, wet weather and frost wear exterior sealant down. In time it goes hard, crazes on the surface and stops stretching, so the joint eventually tears or comes away from one side.
These are the problems we’re asked about most:
- Water getting into walls through failed joints
- Failed sealant between panels on a façade
- Gaps where render, brick and frames meet
- Sealant that has lost its bond to the brick or render
For an older house near a landmark such as St Machar's Parish Church, the joints between older walls, newer extensions and the roofline need a sealant that can move.
What to look for in a quote
- Who does the work, and how experienced they are
- How the joint is cleaned and prepared
- What happens if they find a problem under the old sealant
- How the colour is chosen
What affects the quote in Birsemore
The quote reflects the job in front of us. We look at:
- The product the joint needs
- How many rooms, windows or areas are involved
- The size of the job
- Mould in or behind the old joints
Doing several joints on one visit is generally more efficient than separate visits, so tell us about everything that needs sealing. We will send you a clear quote for the lot.
Asking for a quote
There’s no need for technical detail. Just tell us:
- What the problem is, such as mould, gaps, leaks or cracking
- The type of property
- Photos by email, if that’s easy
- Any access issues, like height or stairs
Quotes start with a quick conversation. Describe the problem, the location and the size of the job. When it suits you, send an email to info@mrmastic.co.uk.