Aberdeenshire · Scotland
Crathes External Mastic
External mastic for Crathes, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Joints where the bead has come unstuck
- Weathered mastic that no longer stretches
- Rain getting behind render or cladding at a joint
External mastic in Crathes, done properly
Low-level joints can usually be done from the ground. Where joints are higher up, tell us about the building when you get in touch and we’ll confirm what’s needed to reach them safely. If you have cracked joints where brick meets render or frames and hard, crazed mastic that has stopped moving, we can put it right, on joints between brick and frames, concrete & block and brickwork movement joints alike.
Older stone buildings need a sealant that suits the stone, not an acetoxy product that can mark or attack it. On newer homes, the movement joints and roofline trims are what need watching.
Whatever the size of the job, it’s backed by our 12-month guarantee in Crathes and across Aberdeenshire.
- Location
- Crathes (AB31)
- Wider area
- Aberdeenshire
- Cover
- 12 months on all our work
- Price
- A clear quote up front
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Landlord and commercial work in Crathes
For anyone letting property in or around Crathes, several properties can go on one quote. Just tell us the addresses and what each one needs.
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance.
What affects the cost of external mastic
Call for a quick quote. The main things that affect it are:
- Whether old sealant or filler has to be cut out
- Whether the work is at height
- Whether there’s mould to deal with
- The product the joint needs
The cost reflects the work involved, not guesswork. That’s why we ask about the job first and give you a clear price before work begins.
Helping us quote
What to tell us when you ask for a quote:
- Roughly how big the job is
- The type of property
- If someone has resealed it before
- Where the job is, and your postcode
There’s no standard price list, as no two jobs are quite the same. Instead, we give you a clear quote for your job. To get started, email us at info@mrmastic.co.uk.
Nearby places to Crathes
Other services in Crathes
Should I try it myself first?
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 fails, we can still redo it.
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.
What external mastic looks like in Crathes
Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and failed outside joints work against that. 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.
Around Crathes, as everywhere, external mastic is only as good as the preparation behind it.
Crathes is about 13 miles south-west of Aberdeen, in Aberdeenshire. Jobs in Crathes get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. 161 places in Aberdeenshire are on our list. There’s also a page for Aberdeen, roughly 13 miles from Crathes.
Postcode districts we cover here for external mastic: AB31. Whether your property is on Hollybush Lane and Green Banks or a nearby road, our applicators can take on the job. Other places close to Crathes include Crossroads (1 mile south), Kirkton of Durris (1 mile east), Balfour (2 miles east), Woodlands (2 miles east) and Banchory (3 miles west). Further out, we also cover Westhill (8 miles north-east), Stonehaven (9 miles south-east), Kemnay (12 miles north), Kintore (12 miles north), Aboyne (14 miles west) and Newtonhill (10 miles east).
Landmarks near Crathes
Nearby you’ll also find Crathes Castle (1 mile west) and Crathes Castle (1 mile west). For a walk, there’s Scolty Hill.
Signs you need external mastic in Crathes
Sunlight, wet weather and frost wear exterior sealant down. Over the years it hardens, cracks on the surface and loses its give, so the joint eventually tears or comes away from one side.
Any of these means the joints need attention:
- Rain getting behind render or cladding at a joint
- Joints where the bead has come unstuck
- Rigid filler in a joint that should flex
- Movement joints with cracked, split or missing sealant
For jobs in and around Crathes, choosing the right material for each joint is as important as a tidy finish.
Before booking anyone
- How the colour is chosen
- What product goes in the joint
- Who turns up on the day
- The length of the guarantee
What happens if it’s left?
A failed movement joint lets water into the wall. Dealing with it early keeps the repair to the joint, instead of the wall and finishes around it. When the nearest tradesperson is a drive away, it’s tempting to leave a small leak, but water behind a failed seal does the most damage when nobody’s watching.
We do not show prices on the website, because each job is priced on what it involves. For a quick quote, please email us at info@mrmastic.co.uk and we will talk you through it.
Why book with us
- A choice of colours where the product allows
- We leave the area clean and tidy
- Arbo and Everbuild products
- Full insurance on every job
Read our cost guide and our reviews.
What happens on the day
When we get to you, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. Most jobs then take a few hours for a handful of joints, longer for a whole elevation. Around Crathes, distance and access matter more than parking. Let us know how to find you and how to reach the joints, and the visit is planned around that.
- Each joint is checked and the colour of the new sealant agreed.
- We take out the old sealant until the faces are sound.
- Backing rod goes in so the sealant can stretch between the two faces.
- Primer is applied wherever the sealant needs it.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
Getting ready for the visit
- Tell us about any previous sealing or DIY attempts
- Let us know if you’ve seen damp or leaks
- For business premises, tell us about site rules or sign-in
Getting a quote
Need a quote? Please email us at info@mrmastic.co.uk with a few details. We’ll explain what we’d do and give you a clear price before we start.
Read more
Crathes questions
Is Crathes within the area you cover?
Yes, we do. We work across all of Scotland, and smaller places are part of that. Longer journeys are simply planned in advance.
Is external mastic in Crathes guaranteed?
All our work, in Crathes and everywhere else, comes with a 12-month guarantee. We are also fully insured and ARBOMaster approved.
Are you insured?
Yes. Full insurance covers our work.
Is it OK to seal over old sealant?
No. Fresh sealant does not stick to old sealant, and anything trapped underneath, including mould and water, stays there. It all has to come out first.
Where do you work from?
Mr Mastic is based in Crawley. Our applicators cover Crathes, along with the rest of our area.
Are you ARBOMaster approved?
Yes. Mr Mastic is an ARBOMaster approved applicator.
What sealant do you use?
Products from Arbo and Everbuild, among others, chosen to suit the joint. We explain the product when we quote.
Is it worth trying it myself?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Keeping the joints in good condition
Aftercare is simple:
- Leave the joints unpainted unless we’ve said otherwise
- Keep high-pressure jets off the joints
- Keep movement joints as flexible joints, not mortar
- Keep soil, plants and ivy away from the joints
Have a quick look at the joints each spring. Watch for splits, edges coming away or growth in the joint.
Gaps, plants or missing sealant in a joint are worth getting looked at. Early work is quicker and leaves a better finish.