Highland · Scotland
External Mastic in Bonar Bridge
Sealing brickwork movement joints, render, cladding and façade joints in Bonar Bridge, with a 12-month guarantee on every job. Call for a quick quote.
- Movement joints filled with mortar instead of sealant
- Failed sealant between panels on a façade
- Moss and dirt in joints with no sealant left
Questions from Bonar Bridge
Does the coastal weather in Bonar Bridge affect outside sealant?
Coastal homes put outside sealant through more weather than inland ones, so the choice of sealant and the preparation matter even more. It’s worth checking the walls that face the sea first.
Can you help a landlord with a rental near Ardgay station?
Yes. We work for landlords and agents as well as homeowners. You can send an email to info@mrmastic.co.uk with the details for a clear quote.
What information do you need?
Where the job is, what the problem is and roughly how big it is. If you can, email a few pictures.
Are you an approved applicator?
Yes. We are approved under the ARBOMaster scheme.
How long does the job take?
Most jobs take a few hours to a few days, depending on the length of joint and the access, including preparation and clearing up. We’ll confirm how long when we quote.
Can you do several jobs on one visit?
Yes. Just list everything you need and you’ll get one quote.
Do you guarantee your work?
Yes, always. There’s a 12-month guarantee on every job, large or small.
What’s an expansion joint in brickwork?
A movement joint is a planned break in the wall that absorbs expansion and shrinkage. It should be filled with flexible sealant, never mortar.
How we handle external mastic in Bonar Bridge
Joints between dissimilar materials, like brick against render or concrete against a steel frame, see movement from both sides. A flexible exterior sealant takes up that movement. Typical jobs include failed sealant between panels on a façade and rigid filler in a joint that should flex, on render & cladding joints, copings & trims and concrete & block.
External sealant needs dry surfaces, so outdoor work around Bonar Bridge is planned around the weather. Tell us how to reach each wall, gutter and roofline.
A 12-month guarantee comes as standard, so you’re covered after we’ve gone.
- Place
- Bonar Bridge (IV24)
- Region
- Highland
- Guarantee
- A year, on every job
- Quote
- A clear price before work begins
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Nearby places to Bonar Bridge
Also in Bonar Bridge
Walls and rooflines in Bonar Bridge
Bonar Bridge 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. Bonar Bridge is in the west of Scotland, which is wetter than the east, which means movement joints and outside wall joints has to cope with a lot of rain.
If you live in an older home near Creich Church of Scotland Parish Church, old and new materials meet at the roofline and walls, which is where sealant earns its keep.
Bonar Bridge is about 28 miles north-west of Nairn, in Highland. We carry out external mastic for householders, landlords and businesses in Bonar Bridge, as part of our work across Highland. Bonar Bridge is one of 253 places in Highland where we work for external mastic.
We cover every part of the IV24 postcode area for external mastic. We cover properties on Migdale Road, Gilmour Crescent and Swordale Crescent and the roads around them. If you are just outside Bonar Bridge, we cover Ardgay (1 mile south-west), Lower Gledfield (1 mile south-west), Spinningdale (4 miles east), Whiteface (6 miles east) and Edderton (7 miles south-east). Within a short drive, we also cover Tain (12 miles south-east), Alness (14 miles south), Dornoch (12 miles east), Invergordon (15 miles south-east) and Golspie (15 miles east). For island and remote addresses, the job takes a little more planning, so let us know when you get in touch.
Near you in Bonar Bridge
For rail, the closest station is Ardgay station, about 1 mile south-west. Well-known places in the area include Migdale Hospital (within half a mile south-east). Not far away are Dùn Creich and Loch Migdale.
When something else is needed
Honest advice matters more to us than a booking, so here’s what new sealant will not do:
- Render that’s blown, hollow or coming away
- Cracking across the wall rather than at a joint
- Damp that isn’t coming from the joint
Not sure which it is? You can email us at info@mrmastic.co.uk and we will tell you honestly.
What we seal
- Façade panels
- Render & cladding joints
- Copings & trims
- Joints between brick and frames
- Brickwork movement joints
- Concrete & block
What happens on the day
At the end, we look at the finished work together. The visit itself usually takes a few hours for a handful of joints, longer for a whole elevation, depending on how much there is to do. Outdoor work around Bonar Bridge depends on the weather, as sealant needs a dry surface, so an outdoor job can move if the forecast changes. Indoor work goes ahead whatever the weather.
- Each joint is checked and the colour of the new sealant agreed.
- We take out the old sealant until the faces are sound.
- Closed-cell backing rod is pushed in so the sealant bonds to two sides only.
- We prime the faces where required.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
Preparing for the visit
- Try not to wet indoor joints just before the visit
- Tell us about access, such as stairs, a lift or high-level joints
- Keep children and pets away from the work area
Ask for a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we’ll talk you through what we’d do. When it suits you, send an email to info@mrmastic.co.uk.
Advice
DIY sealant or a professional job?
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
If you do try it yourself, take your time over the 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.
Keeping the joints in good condition
A little care helps the new joints last. We recommend:
- Check external joints each spring
- Have failed joints looked at early
- Keep high-pressure jets off the joints
- Keep movement joints as flexible joints, not mortar
Follow the cure time we give you before the joint is knocked or disturbed. The surface skins over quickly, but full cure takes longer.
Leave a failed movement joint and water keeps getting into the wall. Over time it can mean damp inside, stained render or frost-damaged brick.
Why deal with it now?
A failed movement joint lets water into the wall, behind render and cladding. Dealing with it early keeps the repair to the joint, instead of the wall and finishes around it. Out of town in Scotland, exposed walls take a lot of weather, and damp in stone or harled walls takes a long time to dry once water gets behind a joint.
A few things move the cost up or down: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether we need extra access for height. We take all of that into account in your quote.
Why Bonar Bridge clients choose us
- Neat joints and a tidy finish
- 4.9 on Google from 180+ five-star reviews
- Over 20 years’ experience
- Colour agreed with you before we start
See our cost guide or customer reviews.
Common problems we fix in Bonar Bridge
Poor preparation causes many early failures: dusty or wet faces, no primer where one was needed, or old sealant left in. The sealant never bonds properly.
People normally contact us after spotting one of these:
- Plants rooting in failed movement joints
- Damp patches traced to an open external joint
- Old sealant gone brittle and cracked
- Leaking joints around cladding and façade panels
Rented homes near Ardgay station change hands often, and outside joints that have cracked can let damp into a rental, so check them between lets.
What your quote should include
- How much experience the applicator has
- The length of the guarantee
- Which colour the sealant will be
- What product goes in the joint
Landlord and commercial work in Bonar Bridge
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Resealing at the right time is simple maintenance.