Highland · Scotland
External & façade joints in Glengolly, Highland
We cover Glengolly for sealing brickwork movement joints, render, cladding and façade joints. Old sealant removed completely, joints prepared properly.
- Water getting into walls through failed joints
- Gaps where render, brick and frames meet
- Joints where the bead has come unstuck
External mastic for homes and businesses in Glengolly
For buildings in Glengolly, we reseal external joints of all kinds, from brick movement joints to cladding panels. The preparation is the same whatever the wall: clean joint faces and the right depth. We work on concrete & block, copings & trims and brickwork movement joints, and the jobs we see most are damp patches traced to an open external joint and rigid filler in a joint that should flex.
Older stone buildings need a sealant that suits the stone, not an acetoxy product that can mark or attack it. Newer houses need their movement joints and roofline trims kept sound.
Big or small, it’s backed by our one-year guarantee in Glengolly and across Highland.
- Place
- Glengolly (KW14)
- Region
- Highland
- Cover
- 12 months on all our work
- Price
- A clear quote up front
- info@mrmastic.co.uk
- Updated
- 26 October 2026
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:
- Structural movement, which needs a surveyor or engineer
- Rising or penetrating damp from elsewhere in the wall
- Loose or hollow render, which needs re-rendering
If you’re not sure, just email us at info@mrmastic.co.uk and we will give you a straight answer before booking.
Where we work in Glengolly
- Façade panels
- Render & cladding joints
- Concrete & block
- Brickwork movement joints
- Copings & trims
- Joints between brick and frames
Your questions about external mastic in Glengolly
Is external mastic in a coastal place like Glengolly any different?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. The right product, a clean joint and the right depth all help it cope.
Is Glengolly within the area you cover?
Yes, we do. We work across all of Scotland, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Can I do it myself?
Some simple jobs can be done by a careful DIYer. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Will there be a smell?
Sometimes, a little. Any smell clears as the sealant cures.
Do you work at height?
It depends on the height and the site. Low-level joints are straightforward; for higher work, tell us about the building and we will confirm what’s needed.
Do you take out the old sealant first?
Yes. All of the old material is cut out and the joint cleaned before applying anything new.
Are you fully insured?
Yes. Full insurance covers our work.
Do you use backing rod?
Closed-cell backing rod sets the depth of the sealant and stops it sticking to the back of the joint. Then the sealant bonds to two faces and can move.
What external mastic looks like in Glengolly
Glengolly is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. Both are hard on movement joints and outside wall joints, which can dry out and crack sooner where a building faces the weather. Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and failed outside joints work against that.
If you look after a building such as Thurso High School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Glengolly is about 2 miles south-west of Thurso, in Highland. We carry out external mastic for homes and businesses in Glengolly and nearby, as part of our work across Highland. Our Highland coverage runs to 253 places, and Glengolly is one of them.
Here we cover the KW14 postcode area for external mastic. We also cover Janetstown (1 mile west), Thurso (2 miles north-east), Scrabster (3 miles north), Westfield (3 miles south-west) and Forss (4 miles north-west). Remote and island addresses need a little more planning, so tell us where you are when you ask for a quote.
Near you in Glengolly
Glengolly’s nearest station is Thurso station, roughly 1.5 miles north-east of the centre. Other landmarks nearby include Scrabster Castle (2.1 miles north) and Dunbar Hospital (0.9 miles north). The countryside around Glengolly includes Loch Calder.
What else we do in Glengolly
Signs you need external mastic in Glengolly
Many joints fail because they were sealed too deep or with nothing behind them. If the sealant sticks to the back as well as the sides, it cannot stretch and tears as soon as the joint widens.
Signs it’s time to call us include:
- Water getting into walls through failed joints
- Weeds or debris growing in open joints
- Joints pointed up with cement by mistake
- Old sealant gone brittle and cracked
Letting a property close to Thurso station? Then outside joints that have cracked can let damp into a rental, so check them between lets.
What to look for in a quote
- Who turns up on the day
- Whether all the old sealant comes out first
- Whether the sealant suits the joint
- How long to leave it before use
What affects the cost of external mastic
Every job gets its own quote. These are the things that affect it:
- How much old sealant there is and how hard it is to remove
- Any mould that needs treating
- Whether the work is at height
- The type of sealant required
What it costs depends on the size of the job, how hard the old material is to remove and how easy the joints are to reach. We give a clear quote before we start, so you know where you stand.
Helping us quote
What to tell us when you ask for a quote:
- The problem you’ve noticed
- How many joints, rooms or windows are involved
- If someone has resealed it before
- How we’d reach the joints
There’s no standard price list. Instead, your job gets its own clear quote. To arrange one, drop us a line at info@mrmastic.co.uk.
Surface by surface
Cladding and façade panels
Metal and composite panels move a lot with temperature, so the joint sealant has to cope with frequent movement. We choose the product to suit.
Render joints
Water behind render can lead to blown patches. A sound joint keeps the render dry behind and protects the render itself.
Why it’s worth doing now in Glengolly
A properly done movement joint is an even line in a colour that suits the wall. A rushed bead with no backing looks untidy and doesn’t last, so it pays to do it properly once. When the nearest tradesperson is a drive away, it’s tempting to leave a small leak, but water through a failed joint keeps working away until it’s fixed.
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 make a difference, and we will explain the quote if you ask.
Why choose Mr Mastic in Glengolly
- 12-month guarantee on every job
- Full insurance on every job
- A choice of colours where the product allows
- Trusted Arbo and Everbuild sealants
Take a look at our cost guide and our reviews.
Keeping the joints in good condition
Once the sealant has cured, a few habits help it last:
- Never let anyone fill a movement joint with mortar
- Get split or bare joints resealed while the damage is small
- Check the sealant is paintable before painting near it
- Deal with leaking gutters that soak the joints below
Do not let soil, plants or ivy build up against the new joints. Anything that holds water against the joint wears it out sooner.
Small splits are the time to act. At that stage it’s a simple cut out and reseal before water has had years to get in.
What we do, step by step
We bring everything the job needs with us, so you do not need to buy or prepare anything. After a quick look at the joints together, the area is protected and the work begins. Most jobs take a few hours for a handful of joints, longer for a whole elevation. Outside jobs in Glengolly need a dry day, because sealant won’t bond to a wet joint, so external jobs may need to move if the day turns wet. Work indoors is not affected.
- First, the joints are inspected and the access agreed.
- Every bit of old sealant and any mortar or debris is cut out.
- Joint faces are cleaned back and primed if the sealant needs 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
- Clear the area around the work
- Keep children and pets away from the work area
- Tell us about any water getting in
Getting a quote
To get a quote, send an email to info@mrmastic.co.uk with the location and a short description of the problem. We’ll give you a clear quote before any work starts.