Aberdeenshire · Scotland
External & façade joints in Cottown, Aberdeenshire
Movement joints in Cottown need attention? We remove the old material, prepare the joints and seal them properly, with a 12-month guarantee.
- Sealant that has lost its bond to the brick or render
- Plants rooting in failed movement joints
- Failed seals between different materials
External mastic for homes and businesses in Cottown
Joints in render and cladding are easy to overlook until a damp patch appears. We inspect them, agree which need doing and reseal with a weatherproof, flexible sealant in a matching colour. We work on joints between brick and frames, copings & trims and render & cladding joints, and common reasons people get in touch are gaps where render, brick and frames meet and sealant pulling away from one side of the joint.
External sealant needs dry surfaces, so outdoor work around Cottown is planned around the weather, and longer journeys are planned in advance. Tell us how to reach each wall, gutter and roofline.
There’s a 12-month guarantee on every job, whatever its size.
- Where
- Cottown (AB54)
- Wider area
- Aberdeenshire
- Cover
- One year on every job
- Quote
- A clear price before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
DIY versus a professional finish
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.
The process
We keep the work tidy and contained to the area we’re working on, so you can get on with your day. Expect the work to take a few hours for a handful of joints, longer for a whole elevation, and we tell you how long to leave it before we go. Outdoor work around Cottown depends on the weather, as sealant needs a dry surface, so external jobs may need to move if the day turns wet. Work indoors is not affected.
- We start by checking each joint, agreeing the ones to redo and how we will reach them.
- The old mastic and anything lodged in the joint is removed.
- The joint faces are cleaned and primed where the sealant needs it.
- Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
- We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.
How to prepare
- On commercial sites, let us know about site rules
- Clear items away from the joints we’re working on
- For indoor joints, keep the area dry beforehand if you can
Ask for 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. We’ll give you a clear price before any work starts.
Related advice
Cottown questions
Do you cover smaller places like Cottown?
Yes, smaller places are covered as well as towns. We work across all of Scotland. Just mention lanes, gates or anything else about the route when you book.
Is there a guarantee on external mastic in Cottown?
All our work, in Cottown and everywhere else, comes with a 12-month guarantee. We are fully insured, and an ARBOMaster approved applicator.
How long does external mastic take?
As a guide, most jobs take anything from a few hours to several days, depending on the building. Bigger jobs take longer.
How often do external joints need resealing?
It varies from wall to wall: joints on exposed walls or with a lot of movement age sooner. Check them each year and reseal when they split or harden. Our work comes with a one-year guarantee.
Can tenants book the work?
We’re happy to deal with the tenant, landlord or agent. Just make sure your landlord agrees.
Is there any odour?
Sometimes, a little. Any smell clears as the sealant cures.
Do you seal joints where cladding meets other materials?
Yes. The old joint is removed, both surfaces cleaned and primed where needed, and a flexible sealant applied. The colour is chosen to suit.
Where is Mr Mastic based?
Mr Mastic is based in Crawley. Our applicators cover Cottown, along with the rest of our area.
Signs you need external mastic in Cottown
Every building moves. Brickwork grows a little over the years, blockwork and concrete shrink, and all of it moves with heat and moisture. All of that ends up in the joint sealant.
Most people get in touch when they notice one of these:
- Joints with sealant missing in places
- Failed sealant between panels on a façade
- Joints pointed up with cement by mistake
- Damp patches traced to an open external joint
Around Cottown, as everywhere, external mastic is only as good as the preparation behind it.
Before booking anyone
- Whether VAT is included
- What product goes in the joint
- How long the guarantee is
- Whether all the old sealant comes out first
Cottown buildings and the weather
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. With historic houses such as Leith Hall (about 3 miles north-east) nearby, there’s older building stock in the area around Cottown as well as newer homes. Where a home is older, older walls and rooflines need a sealant that moves with them and suits the material.
Historic houses such as Leith Hall, about 3 miles north-east, show how far back building around Cottown goes, and older homes nearby need a sealant that suits their walls.
Cottown is about 17 miles west of Inverurie, in Aberdeenshire. We carry out external mastic for homeowners, landlords and businesses in Cottown and nearby, as part of our work across Aberdeenshire. Cottown is one of 161 towns and villages in Aberdeenshire we cover for external mastic. You can also see our page for Aberdeen, about 29 miles away.
All of AB54 is covered for external mastic, from the main roads to the quietest streets. We also cover the places around Cottown: Rhynie (1 mile north-west), Lumsden (3 miles south-west), Kennethmont (3 miles north-east), Gartly (4 miles north) and Backburn (5 miles north). Larger places within reach include Huntly (8 miles north), Kemnay (15 miles south-east), Alford (8 miles south-east) and Insch (8 miles east). If you are somewhere remote, the job takes a little more planning.
Around Cottown
Well-known places in the area include Druminnor Castle (0.5 miles east).
For landlords and businesses
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. We can quote for more than one property at once.
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.
Nearby places to Cottown
More services for Cottown
Aftercare tips
Once the sealant has cured, a few habits help it last:
- Act on the first splits you see
- Keep movement joints as flexible joints, not mortar
- Look over the joints every year, ideally after winter
- Show decorators and builders where the movement joints are
Do not paint over the new sealant unless we’ve said the product is paintable. Many exterior sealants aren’t designed to be painted.
Leaks behind façade panels and render often go unseen. When it finally shows inside, the joint may have been open for years.
Surface by surface
Brickwork movement joints
Vertical joints in long brick walls let the brickwork expand without cracking. We reseal them with a low-modulus sealant over backing rod in a colour to suit the brick.
Joints between dissimilar materials
Each side of the joint may need its own preparation. Both surfaces are cleaned and primed as the product requires.
Why deal with it now?
Done well, a resealed joint is a neat, straight line that suits the wall. A rushed bead with no backing looks untidy and doesn’t last, so it pays to do it properly once. Around Cottown, water from a failed joint in an older stone home can soak into timber and plaster, which is a far bigger job than the sealant.
Instead of a standard rate, we look at what your job involves: how many joints, what’s in them now and how we reach them. You’ll know the price before we begin.
Why us?
- White, clear, grey or coloured to suit, where the product allows
- An ARBOMaster approved applicator
- 20+ years of sealant experience
- Sanitary silicone with an anti-fungal additive in wet areas
Read what affects the cost or our reviews.