Highland · Scotland
External & façade joints in Galltair, Highland
Specialist external mastic for Galltair: careful preparation, the right product and tidy work. Ask us for a quick quote.
- Water getting into walls through failed joints
- Old sealant gone brittle and cracked
- Rigid filler in a joint that should flex
About our external mastic in Galltair
We are ARBOMaster approved applicators, and each external joint gets a sealant suited to it. Some surfaces need a primer before sealing and we use one wherever it does. If you have water getting into walls through failed joints and weeds or debris growing in open joints, we can help.
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.
All our work is covered by a one-year guarantee, wherever you are in Highland.
- Location
- Galltair (IV40)
- Region
- Highland
- Guarantee
- A year, on every job
- Price
- A clear price before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
What we’re called out for in Galltair
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.
Look out for any of the following:
- Sealant that has lost its bond to the brick or render
- Panel joints letting water in
- Brick movement joints where the sealant has split
- Gaps where render, brick and frames meet
If you look after a building such as Bernera School, its movement joints, gutters and trims need looking after like any other building’s.
What your quote should include
- Whether all the old sealant comes out first
- How long to leave it before use
- How hidden problems are handled
- What preparation is included
External mastic in Galltair: local notes
Galltair 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 is hard on movement joints and outside wall joints, especially on the side facing the sea. 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 Galltair, as everywhere, external mastic is only as good as the preparation behind it.
Galltair is in Highland. Every kind of property in Galltair can book us for external mastic. Every job comes with our one-year guarantee. Our Highland coverage runs to 253 places, Galltair among them.
Here we cover the IV40 postcode area for external mastic. We also cover the places around Galltair: Glenelg (1 mile south-east), Glen More (2 miles east), Reraig (4 miles north), Auchtertyre (5 miles north) and Balmacara (5 miles north). Island and remote addresses take a little more planning, so tell us where you are when you ask for a quote.
Around Galltair
Locally, jobs take us to homes and businesses close to Glenelg Inn and the streets around them. Green spaces nearby include Loch an t-Seachrain and Glas Bheinn.
FAQs for Galltair
Does living near the coast affect external mastic in Galltair?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. The right product, a clean joint and the right depth all help it cope.
Will you come out to Galltair?
Yes, Galltair is covered. Our work covers the whole of Scotland, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Can landlords and businesses book you?
Yes. We work for homeowners, landlords, letting agents, businesses and hotels across Highland.
Can you reach joints on upper floors?
It depends on the building. We work on joints that can be reached safely. Give us some details and we’ll confirm the access.
Should I point up the gap in my brickwork?
No. Rigid materials cannot move with the wall. If it has already been filled, we can normally cut it out and reseal it.
How much does external mastic cost in Galltair?
It depends on the job, so we quote each one individually. To get one, send an email to info@mrmastic.co.uk with a short description of the job.
Can you seal joints between render and window frames?
Yes. Materials like render, brick, metal and uPVC all move differently, so a flexible sealant is needed where they meet. The sealant is matched to both sides.
Why is there a gap in my brick wall?
Walls move with heat, cold and moisture, and planned joints take up that movement. The gap is sealed with a flexible sealant over backing rod.
What the job involves on each surface
Concrete and blockwork
Concrete faces can be dusty and porous, so cleaning and priming matter. A primer goes on where the product requires one before the bead.
Brickwork movement joints
Vertical joints in long brick walls let the brickwork expand without cracking. We reseal them with a low-modulus sealant over backing rod.
What we do, step by step
The work is kept neat and contained to the area we are working on, so you can get on with your day. The job normally takes a few hours for a handful of joints, longer for a whole elevation, and we tell you how long to leave it before we go. Around Galltair, 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.
- Failed sealant is removed back to clean, sound faces.
- 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.
Getting ready for the visit
- Where the joints are inside, avoid wetting them before we arrive
- Let us know about parking restrictions
- Let us know if you’ve seen damp or leaks
Ask for a quote
Every job is quoted individually. Simply drop us a line at info@mrmastic.co.uk and describe the job, and pictures are welcome.
Related advice
Quotes for external mastic in Galltair
Some jobs are bigger than they look, and some smaller. The main factors:
- Any working-time requirements on site
- Mould in or behind the old joints
- The number and length of the joints
- Whether the work is at height
Rather than a set price list, we look at what your job involves: how many joints, what’s in them now and how we reach them. You’ll know the price before we begin.
What to tell us for a quote
To make quoting easier, let us know:
- Whether it has been sealed before
- Any access issues, like height or stairs
- What’s wrong with the joints now
- Roughly how big the job is
It all starts with a short chat. Describe the problem, the location and the size of the job, and we’ll explain how we’d tackle it. Whenever you’re ready, drop us a line at info@mrmastic.co.uk.
What happens if it’s left?
It often makes sense to reseal all the failing joints on an elevation together. Joints of the same age tend to fail together and it means sorting access once. Exposed walls in smaller Scottish places take a lot of wind and rain, and once water gets behind a failed joint, damp in stone or harled walls is slow to dry out.
Every job is a little different, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all play a part, and we will explain the quote if you ask.
What you get with us
- White, clear, grey or another colour, product permitting
- An ARBOMaster approved applicator
- Colour agreed with you before we start
- A sealant colour to suit the surroundings
Read how sealant jobs are priced or our reviews.
Keeping the joints in good condition
Once the sealant has cured, a few habits help it last:
- Point out the joints to other trades
- Keep water from gutters off the wall
- Check the sealant is paintable before painting near it
- Make sure movement joints aren’t pointed over
Keep the joints clear of soil, plants and climbing growth. Damp material against the sealant shortens its life.
Water getting behind cladding or render can go unnoticed for a long time. By the time there’s a damp patch, the damage can be well established.
Towns and villages near Galltair
Also in Galltair
Landlords, agents and businesses in Galltair
We work for landlords and agents as well as homeowners. Sealant work between tenants is a simple way to keep a property in good order before the next move-in.
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.