Highland · Scotland
External & façade joints in Cromarty, Highland
Sealing brickwork movement joints, render, cladding and façade joints in Cromarty, with a 12-month guarantee on every job. Call for a quick quote.
- Damp patches traced to an open external joint
- Weathered mastic that no longer stretches
- Rigid filler in a joint that should flex
How the visit works
All our tools and materials come with us in the van, so there’s nothing for you to buy. Once we have agreed what’s being done, we protect the area and start. It normally takes a few hours to a few days, depending on the length of joint and the access. Outside jobs in Cromarty need a dry day, because sealant will not bond to a wet joint, so an outdoor job can move if the forecast changes. Indoor work goes ahead whatever the weather.
- We start by walking round the building and agreeing the joints and the access.
- Every bit of old sealant and any mortar or debris is cut out.
- 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.
Getting ready for the visit
- Let us know about parking restrictions
- Mention any tricky access
- Try not to wet indoor joints just before the visit
Ask for a quote
We do not publish a price list, because every job is different. Instead, your job gets its own clear quote. To arrange one, email us at info@mrmastic.co.uk.
Advice
External mastic in Cromarty
A movement joint is a deliberate break that lets a wall expand and contract. The sealant in it has to stretch and squeeze for years, so once it splits or hardens, the joint stops working and water gets in. If you are dealing with rigid filler in a joint that should flex and weathered mastic that no longer stretches, we can put it right, on brickwork movement joints, joints between brick and frames and copings & trims alike.
Stone walls need a stone-friendly sealant, as acetoxy products can attack some stone. On newer homes, the movement joints and roofline trims are what need watching.
A one-year guarantee comes with the work, just as it does everywhere we cover.

- Place
- Cromarty (IV11)
- Region
- Highland
- Cover
- A year, on every job
- Quote
- Quoted before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Questions from Cromarty
Do you cover Cromarty for external mastic?
Yes. Our work covers the whole of Scotland, and Cromarty is part of that. You can send an email to info@mrmastic.co.uk and tell us what needs doing, and we’ll give you a clear price.
Will you come out to Cromarty?
Yes, smaller places are covered as well as towns. Our work covers the whole of Scotland. Just mention lanes, gates or anything else about the route when you book.
Is it worth trying it myself?
Sometimes. Preparation is everything: all the old sealant out, and a clean, dry joint. If it doesn’t work out, we can redo it.
Do you guarantee your work?
Yes. All our work carries a 12-month guarantee.
Can you reach joints on upper floors?
It depends on the building. Tell us the height, the number of joints and what’s below them.
When will the joints need doing again?
It varies with how exposed the wall is and how much the joint moves. Signs to watch for are cracking, hardening and gaps at the edges.
Do you seal joints where cladding meets other materials?
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.
Is there any odour?
Sometimes, a little. Any smell clears as the sealant cures, and ventilation helps.
How to look after the new joints
Good habits help new joints last longer. A few tips:
- Keep water from gutters off the wall
- Avoid pressure-washing directly into sealant joints
- Point out the joints to other trades
- Never let anyone fill a movement joint with mortar
If you have more work done on the wall, such as new render, cladding or an opening, show the contractor the movement joints. They should be kept open and resealed, not filled.
Gaps, plants or missing sealant in a joint are worth getting looked at. Early work is quicker and leaves a better finish.
How the job changes by surface
Concrete and blockwork
Blockwork and concrete shrink over time and move with the seasons. Their movement joints are sealed over backing rod with a flexible sealant.
Render joints
Water behind render can lead to blown patches. A sound joint keeps the render dry behind.
Cromarty buildings and the weather
Cromarty is within about 1 mile of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on movement joints and outside wall joints, which can dry out and crack sooner where a building faces the weather. Cromarty is in the west of Scotland, which is wetter than the east, so there’s plenty of rain for movement joints and outside wall joints to keep out.
For jobs in and around Cromarty, choosing the right material for each joint is as important as a tidy finish.
Cromarty is about 9 miles north-west of Nairn, in Highland. Wherever you are in the IV11 postcode area, our applicators can take on external mastic. Cromarty is one of 253 towns and villages in Highland we cover for external mastic. We also work in Aberdeen, about 80 miles from Cromarty.
Here we cover the IV11 postcode area for external mastic. Streets in the area include High Street, Allan Square and Denoon Place, all of which we cover. Cromarty is on the A832 and B9163, which makes it straightforward to reach. Other places close to Cromarty include Nigg (3 miles north), Davidston (3 miles south-west), Pitcalnie (3 miles north), Barbaraville (4 miles north-west) and Kilmuir (4 miles north-west). Larger places within reach include Nairn (9 miles south-east), Cradlehall (14 miles south), Tain (9 miles north), Alness (8 miles west), Dornoch (14 miles north) and Invergordon (5 miles west). Island and remote addresses take a little more planning, so please mention your location when you drop us a line at info@mrmastic.co.uk.
What’s near Cromarty
Other landmarks nearby include Cromarty Courthouse Museum (under half a mile east) and County Community Hospital (4.4 miles west). Green spaces nearby include Udale Bay RSPB reserve.
Work for landlords, hotels and businesses
Hotels need rooms back in use, so we plan the work room by room around your bookings where we can. We have worked in hotels as well as homes and businesses.
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.
What we can’t put right
We’d rather tell you now than do work that will not last, so here’s what sealant cannot put right:
- Cracking across the wall rather than at a joint
- Rising or penetrating damp from elsewhere in the wall
- Structural movement, which needs a surveyor or engineer
If in doubt, send an email to info@mrmastic.co.uk and we’ll say what we think.
Where we work in Cromarty
- Copings & trims
- Concrete & block
- Joints between brick and frames
- Façade panels
- Render & cladding joints
- Brickwork movement joints
When to call us in Cromarty
Using the wrong sealant is another common reason. A stiff, general-purpose sealant cannot cope with a joint that moves a lot, so it pulls away from the edges.
Keep an eye out for these signs:
- Sealant pulling away from one side of the joint
- Failed seals between different materials
- Panel joints letting water in
- Hard, crazed mastic that has stopped moving
In and around Cromarty, as anywhere, good external mastic starts with a clean, dry, properly prepared joint.
What your quote should include
- What happens if the job turns out different
- Are they insured?
- Whether the sealant suits the joint
- How the surfaces are prepared before sealing
Why deal with it now?
Done well, a resealed joint is a neat, straight line that suits the wall. A rushed bead with no backing looks untidy and does not last so it’s worth doing right. In an older home around Cromarty, damp from a failed joint can get into timber and plaster.
Doing several joints on one visit is generally more efficient than separate visits. You’ll get one clear quote for the whole job.
Why choose Mr Mastic in Cromarty
- Homes, businesses and hotels
- Full insurance on every job
- Rated 4.9 stars on Google
- Old sealant always removed completely
See our cost guide and what customers say.
