Aberdeenshire · Scotland
Kemnay External Mastic
Sealing brickwork movement joints, render, cladding and façade joints for homes and businesses in Kemnay and across Aberdeenshire. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Joints pointed up with cement by mistake
- Brick movement joints where the sealant has split
- Failed seals between different materials
Why act early in Kemnay
A properly done movement joint is an even line in a colour that suits the wall. A hurried job with smeared edges and no backing looks worse and fails sooner, so it pays to do it properly once. When the nearest tradesperson is a drive away, it’s tempting to leave a small leak, but water through a failed joint keeps working away until it’s fixed.
We don’t show prices on the website, because the cost depends so much on the job itself. Call for a quick quote and we’ll talk you through it.
Why choose Mr Mastic in Kemnay
- One-year guarantee on every job
- Sanitary silicone with an anti-fungal additive in wet areas
- Colour agreed with you before we start
- Neat joints and a tidy finish
Take a look at our cost guide or customer reviews.
How we handle external mastic in Kemnay
For buildings in Kemnay, we reseal external joints of all kinds, from brick movement joints to cladding panels. The preparation is the same whatever the wall: clean joint faces and the right depth. If you have cracked joints where brick meets render or frames and old sealant gone brittle and cracked, we can put it right, on brickwork movement joints, render & cladding joints and joints between brick and frames alike.
Across smaller places in Scotland, stone and harled cottages, farm buildings and newer houses often stand exposed to wind and rain. Gutter joints and wall joints take a battering.
Whatever the size of the job, it’s backed by our 12-month guarantee.
- Location
- Kemnay (AB51)
- Wider area
- Aberdeenshire
- Cover
- One year on every job
- Quote
- A clear quote up front
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Should I try it myself first?
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.
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 happens on the day
The work is kept neat and contained to the joints we’re treating. The job usually takes a few hours to a few days, depending on the length of joint and the access, and we explain the cure time before we leave. For a place like Kemnay, longer drives are planned in advance. Mention tracks, gates, ferries or anything else about the route.
- We look at every joint and agree a colour to suit the wall.
- We take out the old sealant until the faces are sound.
- Backing rod goes in so the sealant can stretch between the two faces.
- We prime the faces where required.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
Getting ready for the visit
- For indoor joints, keep the area dry beforehand if you can
- Let us know about stairs, lifts or work at height
- On commercial sites, let us know about site rules
Get a quote
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is. When it suits you, email us at info@mrmastic.co.uk.
Related advice
Different surfaces, different methods
Joints between dissimilar materials
Brick against render, concrete against metal, stone against timber: every change of material is a joint. A flexible sealant bridges the two so neither cracks the other.
Render joints
Rendered walls have joints at beads, openings and changes of material. We reseal them with a flexible exterior sealant that suits the render colour.
What affects the cost of external mastic
We don’t publish a price list. The quote depends on:
- How many rooms, windows or areas are involved
- When we can work, for business premises
- The number and length of the joints
- Whether there’s mould to deal with
A few things move the cost up or down: how much old sealant there is and how stubborn it is, any mould to treat, and whether we need extra access for height. Your quote takes all of that into account.
Helping us quote
Before you ask for a quote, have a think about:
- The address or postcode of the job
- Roughly how big the job is
- The problem you’ve noticed
- If it’s domestic, commercial or a hotel
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is.
Places near Kemnay
Other services in Kemnay
How to look after the new joints
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Make sure movement joints aren’t pointed over
- Deal with leaking gutters that soak the joints below
- Keep soil, plants and ivy away from the joints
- Check external joints each spring
Look over the joints once a year, ideally after winter. Watch for splits, edges coming away or growth in the joint.
An open movement joint lets rain into the wall every time it pours. Over time it can mean damp inside, stained render or frost-damaged brick which cost more to put right than the joint.
Common questions in Kemnay
Do you cover Kemnay for external mastic?
Yes. Our work covers the whole of Scotland, and Kemnay is part of that. Just email us at info@mrmastic.co.uk with a few details of the job, and we’ll send you a clear quote.
Do you work for landlords with property near Kintore station?
Yes, we work for landlords and agents. Just send an email to info@mrmastic.co.uk and tell us about the property, and we’ll give you a clear quote.
How much does external mastic cost in Kemnay?
We do not publish prices, because the cost depends on the job: how much there is, what’s there now, how we reach it and what it needs. You will get a clear quote before work begins.
When is the sealant fully cured?
Many sealants skin over quickly but take longer to cure fully. We will give you the cure time for the product we used.
Can I do it myself?
You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. We can always put it right if it fails.
Do you work at height?
It depends on the height and the site. Ground-floor joints are simple; for higher work, tell us about the building and we’ll confirm what’s needed.
Do you hold any approvals?
Yes. Mr Mastic is an ARBOMaster approved applicator and we’re fully insured too.
Should I point up the gap in my brickwork?
No, not where the gap is a movement joint. Pointing it stops it working. We’ll reseal it with a flexible sealant.
Common problems we fix in Kemnay
Joints sealed without backing rod, or far too deep, rarely last. If the sealant sticks to the back as well as the sides, it can’t stretch and tears as soon as the joint widens.
People generally contact us after spotting something like this:
- Old sealant gone brittle and cracked
- Leaking joints around cladding and façade panels
- Rigid filler in a joint that should flex
- Movement joints with cracked, split or missing sealant
For an older house near a landmark such as Kemnay Parish Church, old and new materials meet at the roofline and walls, which is where sealant earns its keep.
What your quote should include
- Which colour the sealant will be
- How the surfaces are prepared before sealing
- Whether VAT is included
- What the cure time is
Outside joints around Kemnay
Harled (roughcast) walls are common in Scotland, and joints where harling meets other materials need a sealant that can grip and flex. Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and failed outside joints work against that.
Schools such as Kemnay Academy are buildings too, and movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. Rented homes near Kintore station change hands often, and outside joints that have cracked can let damp into a rental, so check them between lets.
Kemnay is about 4 miles south-west of Inverurie, in Aberdeenshire. From the centre of Kemnay to the outskirts, we cover external mastic for every kind of property, from flats and houses to offices and hotels. Our area takes in 161 places across Aberdeenshire. Our Aberdeen page covers work nearby.
All of AB51 is covered for external mastic, from the main roads to the quietest streets. Whether your property is on High Street, Station Road and Greystone Square or anywhere close by, our applicators can take on the job. We also cover Cottown (2 miles east), Monymusk (3 miles west), Kintore (4 miles east), Sauchen (4 miles south-west) and Port Elphinstone (4 miles north-east). Further out, we also cover Inverurie (4 miles north-east), Westhill (8 miles south-east), Banchory (12 miles south), Garioch (4 miles north-east), Oldmeldrum (8 miles north-east) and Alford (10 miles west). Remote and island addresses need a little more planning, so tell us where you are when you ask for a quote.
What’s near Kemnay
For rail, the closest station is Kintore station, roughly 3.6 miles east. A little further out are Little Treasures: Toy Museum & Shop (1.3 miles north-east) and Inverurie Hospital (3.9 miles north-east). The countryside around Kemnay includes Scroggie Hill.