Highland · Scotland
External & façade joints in Croy, Highland
External mastic for Croy and the surrounding area: careful preparation, the right product and tidy work. Call for a quick quote.
- Moss and dirt in joints with no sealant left
- Failed seals between different materials
- Sealant pulling away from one side of the joint
DIY sealant or a professional job?
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.
How we handle external mastic in Croy
A movement joint is only as good as its depth. Closed-cell backing rod sets the depth and stops the sealant sticking to the back, leaving it bonded to two faces so it can move with the wall. If you’re dealing with rigid filler in a joint that should flex and weeds or debris growing in open joints, we can put it right, whatever the surface.
In and around a place like Croy, 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.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we’ll sort it.

- Location
- Croy (IV2)
- Wider area
- Highland
- Cover
- A year, on every job
- Price
- A clear quote up front
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
What we’re called out for in Croy
A lot of failed joints come down to preparation: dusty or wet faces, no primer where one was needed, or old sealant left in. The new sealant then lets go long before it should.
Keep an eye out for these signs:
- Damp patches traced to an open external joint
- Sealant that has lost its bond to the brick or render
- Weeds or debris growing in open joints
- Movement joints filled with mortar instead of sealant
Homes close to Croy Parish Church Of Scotland include some older properties, and the joints between older walls, newer extensions and the roofline need a sealant that can move.
Questions to ask before you book
- Whether the sealant suits the joint
- What happens if they find a problem under the old sealant
- Whether all the old sealant comes out first
- Is VAT in the price?
What happens on the day
On the day, we start by going over the job with you, so you know exactly what we are doing. Surfaces next to the work are protected before we start. The work generally takes a few hours to a few days, depending on the length of joint and the access. Outdoor work around Croy depends on the weather, as sealant needs a dry surface, so an outdoor job can move if the forecast changes. Work indoors is not affected.
- First, the joints are inspected and the access agreed.
- We cut out the old mastic and rake out anything in the joint.
- The faces are brushed clean and primed where the product requires it.
- Backing rod sized to the joint goes in to set the depth.
- We apply the sealant, tool it and check the whole run.
How to prepare
- Mention any leaks or damp you’ve noticed
- Try not to wet indoor joints just before the visit
- Move anything stored near the joints
Ask for a quote
To get a quote, drop us a line at info@mrmastic.co.uk and tell us where the job is and what the problem looks like. We’ll give you a clear quote before any work starts.
Related advice
More services for Croy
Landlord and commercial work in Croy
For anyone letting property in or around Croy, several properties can go on one quote. Just tell us the addresses and what each one needs, and pictures by email help.
We work for letting agents and landlords as well as householders. Sealant work between tenants keeps a property looking cared for.
Your questions about external mastic in Croy
I let a flat near Inverness Airport station. Can you help?
Yes, we work for letting agents and landlords. Just email us at info@mrmastic.co.uk and tell us about the property, and we’ll give you a clear price.
Do you cover smaller places like Croy?
Yes. Croy is within the area we cover, which takes in towns, villages and rural addresses. Our work covers the whole of Scotland. Just mention lanes, gates or anything else about the route when you book.
Can you reach joints on upper floors?
It depends on the height and the site. Low-level joints are straightforward; for higher work, tell us about the building and we’ll confirm what’s needed.
Should I point up the gap in my brickwork?
No, not where the gap is a movement joint. Pointing it stops it working, and the wall may crack nearby. We’ll reseal it with a flexible sealant.
What colours does the sealant come in?
We choose a sealant colour to suit the brick, stone or render so the joint blends in. Exterior sealants come in a good range of colours.
Can you seal joints between render and window frames?
Yes. The old joint is removed, both surfaces cleaned and primed where needed, and a flexible sealant applied. We pick a colour that works with both materials.
Are you fully insured?
Yes. Full insurance covers our work, and we can confirm the details when we quote.
Can I do it myself?
Sometimes. 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.
What the job involves on each surface
Joints between dissimilar materials
Joints where frames, sills or panels meet the wall are common leak points. We cut out the old sealant and reseal with a product suited to both surfaces.
Copings and trims
Copings expand and contract through the day, so the joints need a sealant that stays flexible.
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, rather than the wall around it. In an older home around Croy, damp from a failed joint can get into timber and plaster.
Doing several joints on one visit is usually more efficient than separate visits, so it’s worth mentioning everything you’d like done. You will get one clear quote for the whole job.
Why book with us
- We agree the colour with you first
- Anti-fungal sanitary silicone in wet areas
- White, clear, grey or another colour, product permitting
- Approved under the ARBOMaster scheme
Read our cost guide or what customers say.
What we cannot put right
It helps to know what we can’t do:
- Movement that is more than a sealant joint can take
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
- Failed render or damaged cladding panels
If you’re not sure, just send an email to info@mrmastic.co.uk and we’ll give you a straight answer.
What we seal
- Concrete & block
- Copings & trims
- Joints between brick and frames
- Brickwork movement joints
- Façade panels
- Render & cladding joints
What external mastic looks like in Croy
Croy is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That’s hard on movement joints and outside wall joints, especially on the side facing the sea. 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.
Letting a property close to Inverness Airport station? Then failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Croy is about 7 miles south-west of Nairn, in Highland. Jobs in Croy get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Our Highland coverage runs to 253 places, and Croy is one of them. Our Aberdeen page covers work nearby (75 miles or so).
Here we cover the IV2 postcode area for external mastic. We cover properties on Fraser Lane, MacKinnon Drive and Miller Road and the roads around them. If you’re just outside Croy, we cover Newlands of Culloden (3 miles south-west), Ardersier (3 miles north), Balloch (4 miles south-west), Viewhill (4 miles south-west) and Cawdor (4 miles east). We also work in nearby towns such as Inverness (9 miles south-west), Nairn (7 miles north-east), Cradlehall (5 miles south-west), Merkinch (9 miles west), Hilton (8 miles south-west) and Alness (15 miles north-west). For island and remote addresses, the job takes a little more planning, so mention it when you ask for a quote.
What’s near Croy
For rail, the closest station is Inverness Airport station, about 1.8 miles north-west. A little further out are Highland Aviation Museum (2.5 miles north-west) and Kilravock Castle (1.2 miles east). Not far away are Loch of the Clans.
