Aberdeenshire · Scotland
External & façade joints in Macduff, Aberdeenshire
External mastic for Macduff, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Brick movement joints where the sealant has split
- Cracked joints where brick meets render or frames
- Joints where the bead has come unstuck
About our external mastic in Macduff
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. The colour is chosen to suit the brick or render. We are often asked to deal with joints pointed up with cement by mistake and weeds or debris growing in open joints, on façade panels, render & cladding joints and concrete & block.
Across smaller places in Scotland, stone and harled cottages, farm buildings and newer houses often stand exposed to wind and rain. Outside joints on exposed walls work hard.
We stand behind the work with a one-year guarantee, so you are not left on your own once the job is done.
- Where
- Macduff (AB44)
- Wider area
- Aberdeenshire
- Guarantee
- A year, on every job
- Quotes
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Work for landlords, hotels and businesses
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
Whether it’s one flat or a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a one-year guarantee.
What we cannot put right
Some problems need a builder, plumber or other trade rather than us:
- Cracking across the wall rather than at a joint
- Render that’s blown, hollow or coming away
- Structural movement, which needs a surveyor or engineer
Not sure which it is? You can drop us a line at info@mrmastic.co.uk and we’ll tell you honestly before you book.
Joints and surfaces we work on
- Concrete & block
- Façade panels
- Copings & trims
- Brickwork movement joints
- Render & cladding joints
- Joints between brick and frames
DIY versus a professional finish
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.
If you are set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.
What we’re called out for in Macduff
Some movement joints have been pointed up with mortar, often by someone who didn’t know what it was for. With the joint locked solid, the movement turns into cracks elsewhere in the wall.
Most people get in touch after spotting something like this:
- Leaking joints around cladding and façade panels
- Rain getting behind render or cladding at a joint
- Old sealant gone brittle and cracked
- Sealant pulling away from one side of the joint
Schools such as Banff Academy are buildings too, and its movement joints, gutters and trims need looking after like any other building’s.
What to look for in a quote
- What insurance they hold
- When the joint can take water or movement
- How much experience the applicator has
- Which sealant they’ll use, and why
Walls and rooflines in Macduff
Macduff is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That is hard on movement joints and outside wall joints, especially on the side facing the sea. Historic houses like Duff House (about 1.9 miles south-west) are a reminder that the area around Macduff has older buildings as well as new. In older buildings, older brick and stone need a sealant that suits them, at the right joint depth.
If you live in an older home near Gardner Parish Church, the joints between older walls, newer extensions and the roofline need a sealant that can move.
Macduff is about 18 miles east of Buckie, in Aberdeenshire. We carry out external mastic for householders, landlords and businesses in Macduff and the surrounding area. We cover 161 towns and villages across Aberdeenshire. You can also see our page for Aberdeen, about 38 miles away.
Every address in AB44 is within our area for external mastic. External mastic is available to properties on High Street, Market Street and Garden Street. Main roads around Macduff include the A98 and B9026, which makes travel easy. We also cover Banff (1 mile west), Whitehills (3 miles west), Ladysbridge (4 miles west), Boyndie (4 miles west) and Gardenstown (6 miles east). Larger places within reach include Turriff (9 miles south), Rosehearty (14 miles east), Aberchirder (9 miles south-west) and New Deer (15 miles south-east). For island and remote addresses, the job takes a little more planning, so mention it when you ask for a quote.
Near you in Macduff
We work in homes and buildings around The Old Moray pub. Well-known places in the area include Banff Museum (1.2 miles west) and Chalmers Hospital (1.1 miles west). Not far away are Longman Hill.
What affects the cost of external mastic
We don’t publish a price list, because jobs vary so much. The quote depends on:
- Which sealant suits the joint
- Any mould that needs treating
- Whether old sealant or filler has to be cut out
- The number and length of the joints
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, along with when we can work on site. Ask us for a quote and we’ll explain what it covers.
What we need to know
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- Access, such as stairs, a lift or height
- The address or postcode of the job
- Photos by email, if that is easy
- What the problem is, such as mould, gaps, leaks or cracking
For a quick quote, get us on the phone, or email us if that’s easier. Tell us about the joints that need doing and we will talk you through the work.
How the visit works
All our tools and materials come with us in the van. After a quick look at the joints together, the area is protected and the work begins. It normally takes a few hours for a handful of joints, longer for a whole elevation. Somewhere like Macduff 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.
- First we look over the joints with you, agree which to renew and talk through access.
- Old sealant and any debris are cut and raked out.
- 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.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
Preparing for the visit
- Clear items away from the joints we are working on
- Try not to wet indoor joints just before the visit
- Plan for the work area to be out of bounds to pets and children
Ask for a quote
Every job is quoted individually. Simply send an email to info@mrmastic.co.uk and describe the job.
Advice
What the job involves on each surface
Copings and trims
Joints in copings, parapets and trims are exposed to the worst of the weather. Each is resealed with a weatherproof, flexible sealant.
Brickwork movement joints
Vertical joints in long brick walls let the brickwork expand without cracking. They’re resealed over backing rod with a low-modulus sealant.
Macduff: your questions answered
Does the coastal weather in Macduff affect outside sealant?
Near the sea, outside joints face more wind, rain and salt than they would inland, so the choice of sealant and the preparation matter even more. Walls facing the sea are usually the first to need attention.
Do you cover smaller places like Macduff?
Yes, we do. Our work covers the whole of Scotland, and smaller places are part of that. Longer journeys are simply planned in advance.
Do you remove the old sealant?
Yes. Sealing over old sealant is the main reason resealing fails early, so we never do it.
Do I need to be at home?
That depends on where the joints are. Inside work needs someone to give us access.
Where are you based?
Mr Mastic is based in Crawley. We cover Macduff and the rest of Aberdeenshire.
Can new sealant go over the old?
No. Fresh sealant doesn’t stick to old sealant, and it traps any mould or water underneath. It all has to come out first.
When is the sealant fully cured?
Cure times vary by product. Before we leave, we’ll tell you the cure time.
Is the work guaranteed?
Yes. All our work carries our 12-month guarantee.