Highland · Scotland
External & façade joints in Laggan, Highland
External mastic for Laggan, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Moss and dirt in joints with no sealant left
- Joints where the bead has come unstuck
- Weathered mastic that no longer stretches
Why act early in Laggan
Pointing a movement joint with mortar might seem a neat fix, but it locks the joint solid. The movement then cracks the brickwork or render nearby. The correct repair is a flexible sealant with the right backing. In an older home around Laggan, damp from a failed joint can get into timber and plaster, which is a far bigger job than the sealant.
Homes and businesses are quoted the same way: the amount of work, the access and the products needed, along with when we can work on site. Ask us for a quote and we will go through it with you.
Why choose Mr Mastic in Laggan
- Experience in homes, commercial sites and hotels
- Colour picked to suit the job
- Fully insured
- Trusted Arbo and Everbuild sealants
External mastic for homes and businesses in Laggan
Movement joints let brickwork, render and cladding expand and shrink without cracking. Its sealant has to flex with the building, season after season, so once it splits or hardens, the joint stops working and water gets in. We work on render & cladding joints, façade panels and brickwork movement joints, and people most often call us about rigid filler in a joint that should flex and weathered mastic that no longer stretches.
Across smaller places in Scotland, stone and harled cottages, farm buildings and newer houses often stand exposed to wind and rain. Outside joints on exposed walls work hard, so they need a sealant that moves with the building.
The work is guaranteed for twelve months. If something is not right with it in that time, tell us and we will put it right.
- Place
- Laggan (PH20)
- Wider area
- Highland
- Cover
- A year, on every job
- Quote
- A clear price before we start
- info@mrmastic.co.uk
- Updated
- 26 October 2026
How the visit works
Good joint work is mostly preparation, so that’s where we spend the time. Every joint is cleaned and dried before new material goes in. All told, the work takes a few hours to a few days, depending on the length of joint and the access. Outdoor work around Laggan 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.
- We gun in low-modulus sealant and tool it neatly.
Getting ready for the visit
- Try not to wet indoor joints just before the visit
- On commercial sites, let us know about site rules
- Tell us about access, such as stairs, a lift or high-level joints
Ask for a quote
We don’t publish a price list. Instead, your job gets its own clear quote. To arrange one, send an email to info@mrmastic.co.uk.
Related advice
Common questions in Laggan
What guarantee comes with external mastic in Laggan?
All our work, in Laggan and everywhere else, comes with a 12-month guarantee. We are also fully insured and ARBOMaster approved.
Can you do external mastic in Laggan?
Yes, Laggan is within the area we cover. We work across all of Scotland. Just email us at info@mrmastic.co.uk with a few details of the job.
How long does external mastic take?
A typical job takes a few hours to a few days, depending on the length of joint and the access, including preparation and clearing up. We will confirm how long when we quote.
How much does external mastic cost in Laggan?
The cost depends on the size of the job, access and how much old sealant has to come out. Ask us for a quote.
Can I do it myself?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
Do you work for hotels and businesses?
Yes. We work in offices, washrooms, hotels and other commercial premises, as well as homes. We can talk about working times when we quote.
Can I add another job to the visit?
Yes, we can. Several rooms, windows or areas can go on one quote.
Do you remove the old sealant?
Yes, every time. New sealant will not bond properly to old, so the joint is cleaned back first.
More services for Laggan
What the job involves on each surface
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.
Render joints
Water behind render can lead to blown patches. Resealing the joints early keeps water out and protects the render itself.
Common problems we fix in Laggan
Poor preparation causes many early failures: joint faces that were dusty or damp, unprimed where they needed it, or still carrying old sealant. The sealant never bonds properly.
The most common problems we see are:
- Damp patches traced to an open external joint
- Sealant that has lost its bond to the brick or render
- Joints pointed up with cement by mistake
- Hard, crazed mastic that has stopped moving
In the older streets around Laggan Parish Church, older walls, gutters and the joints where extensions meet them need a flexible sealant.
What to look for in a quote
- Whether you can choose the colour
- What preparation is included
- Is the old sealant removed completely?
- What the cure time is
How we quote for external mastic
Call for a quick quote. The main things that affect it are:
- Which sealant suits the joint
- The amount of work
- The old material and how stubborn it is
- Working hours on commercial sites
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
Helping us quote
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- The problem you’ve noticed
- The type of property
- How many joints, rooms or windows are involved
- Any previous sealing or DIY work
Need a quote? Please send an email to info@mrmastic.co.uk with a few details. You’ll know what we plan to do, and what it will cost, before any work begins.
Looking after it afterwards
Looking after new joints is easy:
- Tell anyone working on the walls about the movement joints
- Check external joints each spring
- Deal with leaking gutters that soak the joints below
- Leave the joints unpainted unless we’ve said otherwise
Look over the joints once a year, ideally after winter. Splits, gaps at the edges or plants in the joint are early warning signs.
Water getting behind cladding or render can go unnoticed for a long time. When it finally shows inside, the joint may have been open for years so early resealing is worth it.
Work for landlords, hotels and businesses
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we will quote.
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance that we can handle for you.
What external mastic looks like in Laggan
The west of Scotland is wetter than the east, which means movement joints and outside wall joints has to cope with a lot of rain. Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and failed outside joints work against that.
Around Laggan, as everywhere, external mastic is only as good as the preparation behind it.
Laggan is about 31 miles south of Inverness, in Highland. Laggan gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Across Highland, we cover 253 places, and Laggan is one of them. Dundee is on our list too, around 62 miles away.
Here we cover the PH20 postcode area for external mastic. Close by, we work in Gergask (1 mile north-west), Etteridge (4 miles east), Dalwhinnie (6 miles south), Newtonmore (7 miles north-east) and Kingussie (10 miles north-east). Island and remote addresses take a little more planning, so tell us where you are when you ask for a quote.
What’s near Laggan
Nearby you will also find Cluny Castle (1.8 miles east). Not far away are Creag Bhuidhe and Loch Caoldair.