Aberdeenshire · Scotland
External Mastic in Marykirk
External mastic across Marykirk and nearby, with old sealant always removed completely and a 12-month guarantee.
- Gaps where render, brick and frames meet
- Panel joints letting water in
- Moss and dirt in joints with no sealant left
Marykirk: your questions answered
I let a flat near Laurencekirk station. Can you help?
Yes, landlords and agents are among the people we work for. Just drop us a line at info@mrmastic.co.uk with the address and what needs doing, and we’ll send you a clear quote.
Is Marykirk within the area you cover?
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.
Do you hold any approvals?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.
Is it messy?
Very little: the area around the joints is protected first, and we clear up the old sealant and our materials before we leave.
Can you seal over the old sealant?
No. The old sealant always comes out first.
Can you do several jobs on one visit?
Yes, we can. More than one area can be quoted together.
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.
Do I have to be there?
It depends on the job. For work indoors, someone needs to let us in, while outside work can sometimes be arranged differently.
External mastic in Marykirk, done properly
We cut out failed sealant, set the joint depth with closed-cell backing rod and reseal with a low-modulus exterior sealant. The colour is chosen to suit the brick or render so the line blends in. Common call-outs are for moss and dirt in joints with no sealant left and rain getting behind render or cladding at a joint, across copings & trims, brickwork movement joints and joints between brick and frames.
In and around a place like Marykirk, many buildings face open ground and take the full weather. Gutter joints and wall joints take a battering, so they need a sealant that moves with the building.
Whatever the size of the job, it’s backed by our one-year guarantee.
- Place
- Marykirk (AB30)
- Region
- Aberdeenshire
- Cover
- A year, on every job
- Price
- A clear price before we start
- info@mrmastic.co.uk
- Updated
- 26 October 2026

When it isn’t the sealant
New sealant cannot fix everything, and we’d rather say so up front. It will not solve:
- Damp that is not coming from the joint
- Cracking across the wall rather than at a joint
- Movement that’s 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.
Where we work in Marykirk
- Concrete & block
- Render & cladding joints
- Joints between brick and frames
- Copings & trims
- Façade panels
- Brickwork movement joints
How the job changes by surface
Copings and trims
A failed coping joint lets water into the top of the wall. Resealing them is a small job that protects a lot.
Cladding and façade panels
Cladding and façade panels are normally separated by sealed joints. Each joint gets a sealant that suits the panel and its movement.
DIY sealant or a professional job?
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
What we do, step by step
We work through the job in order: protection first, then preparation, sealing and a tidy-up. Typically it takes a few hours for a handful of joints, longer for a whole elevation and we leave things clean and tidy. Outdoor work around Marykirk depends on the weather, as sealant needs a dry surface, so external jobs may need to move if the day turns wet. Work indoors isn’t affected.
- We inspect the joints and agree which need resealing and how they’ll be reached.
- The old mastic and anything lodged in the joint is removed.
- Both sides are cleaned back to sound material and primed if needed.
- We push in closed-cell backing rod so the sealant is the right depth and bonds to the sides only.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
Preparing for the visit
- Tell us about any previous sealing or DIY attempts
- On commercial sites, let us know about site rules
- Clear items away from the joints we are working on
Ask for a quote
Every job is quoted individually, so start by telling us what you need. Simply drop us a line at info@mrmastic.co.uk and describe the job and send pictures if you have them.
Read more
When to call us in Marykirk
Some movement joints have been pointed up with mortar by mistake. The joint cannot move, so the wall cracks somewhere else instead.
The problems people generally mention when they call include:
- Rigid filler in a joint that should flex
- Joints with sealant missing in places
- Old sealant gone brittle and cracked
- Moss and dirt in joints with no sealant left
In the older streets around Aberluthnott Parish Church, older walls, gutters and the joints where extensions meet them need a flexible sealant.
Before booking anyone
- Whether they seal over old material or remove it
- The length of the guarantee
- Whether they’re fully insured
- What happens if the job turns out different
Landlord and commercial work in Marykirk
Housing providers, facilities teams and property managers book us too in Marykirk and across Aberdeenshire. Several sites can go on one quote, and we are fully insured for the work.
Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. We’ve worked in hotels as well as homes and businesses.
Walls and rooflines in Marykirk
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. Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and failed outside joints work against that.
Letting a property close to Laurencekirk station? Then outside joints that have cracked can let damp into a rental, so check them between lets.
Marykirk is about 5 miles north of Montrose, in Aberdeenshire. If you need external mastic in Marykirk, please drop us a line at info@mrmastic.co.uk for a quick quote. We cover Aberdeenshire from our Crawley base. 161 places in Aberdeenshire are on our list. Our Dundee page covers work nearby.
We cover every part of the AB30 postcode area for external mastic and the streets around it. That includes homes and businesses on Kirktonhill Road, Kirktonhill Place and Napier Place. We also cover the places around Marykirk: Craigo (1 mile south), Luthermuir (2 miles north-west), Sauchieburn (3 miles north-west), Hillside (3 miles south-east) and St Cyrus (4 miles east). We also work in nearby towns such as Montrose (5 miles south), Inverbervie (10 miles north-east), Ferryden (6 miles south) and Johnshaven (7 miles east).
Around Marykirk
Marykirk’s nearest station is Laurencekirk station, about 4.2 miles north-east. Other landmarks nearby include Inglismaldie Castle (2.7 miles west) and Stracathro Hospital (3.8 miles west). Open spaces near Marykirk include St Cyrus National Nature Reserve and Duns Dish.
Also near Marykirk
More services for Marykirk
What happens if it’s left?
Pointing a movement joint with mortar might seem a neat fix, but it stops the joint moving. The wall then cracks somewhere else. The correct repair is a flexible sealant with the right backing. Around Marykirk, 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.
The cost reflects the work involved, not a rough estimate. That is why we ask about the job first and agree the price before starting.
Why choose Mr Mastic in Marykirk
- Homes, businesses and hotels
- More than 20 years in sealant work
- We are fully insured
- ARBOMaster approved applicator
