Na h-Eileanan Siar · Scotland
External & façade joints in Loch Baghasdail, Na h-Eileanan Siar
We cover Loch Baghasdail for sealing brickwork movement joints, render, cladding and façade joints. Old sealant removed completely, joints prepared properly and every job guaranteed for a year.
- Joints with sealant missing in places
- Damp patches traced to an open external joint
- Leaking joints around cladding and façade panels
External mastic for homes and businesses in Loch Baghasdail
Joints between dissimilar materials, like brick against render or concrete against a steel frame, see movement from both sides. A flexible sealant bridges the two where mortar or filler would crack. Common call-outs are for joints pointed up with cement by mistake and damp patches traced to an open external joint, across brickwork movement joints, façade panels and render & cladding joints.
In and around a place like Loch Baghasdail, many buildings face open ground and take the full weather. Gutter joints and wall joints take a battering, so they need a sealant that moves with the building.
There’s a 12-month guarantee on every job, large or small.
- Location
- Loch Baghasdail (HS8)
- Wider area
- Na h-Eileanan Siar
- Guarantee
- 12 months on all our work
- Quotes
- Quoted before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Can I do it myself?
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
If you’ve already had a go yourself, that is fine. We cut it out and start again, so just mention it when you contact us.
Places near Loch Baghasdail
More services for Loch Baghasdail
What external mastic looks like in Loch Baghasdail
Loch Baghasdail 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. Work on the islands has to be planned around ferry crossings and the weather, so the more notice, the better.
Around Loch Baghasdail, as everywhere, external mastic is only as good as the preparation behind it. Whether the job is in Loch Baghasdail itself or nearby, the right material for each joint matters as much as a neat finish.
Loch Baghasdail (Gaelic: Lochboisdale) is in Na h-Eileanan Siar. Wherever you are in the HS8 postcode area, we can carry out external mastic at your property. Loch Baghasdail is one of 87 towns and villages in Na h-Eileanan Siar where we work for external mastic.
All of HS8 is within our area for external mastic, from the main roads to the quietest streets. You will find streets such as Kenneth Terrace, Slighe Choinnich and Braehead, and we cover them all. Other places close to Loch Baghasdail include Lochboisdale (1 mile south), Dalabrog (2 miles west), Rubha Ban (5 miles south), Eòlaigearraidh (9 miles south-west) and Cuidhir (12 miles south-west). For island and remote addresses, a little more planning is needed, so let us know when you get in touch.
Near you in Loch Baghasdail
A little further out are Calvay Castle (1.8 miles south-east). For a walk, there’s Beinn Ruigh Choinnich and Loch Stulaval.
How the job changes by surface
Joints between dissimilar materials
Where a frame or panel meets masonry, water often finds a way in. The old joint is removed and a sealant that bonds to both sides goes in.
Render joints
Render is weaker at the surface than brick, so a sealant that stretches easily protects the edges. We prime where the product needs it.
Honest limits
We will not take on work that won’t last, so these are the limits:
- Cracked brickwork or render that needs a builder or plasterer
- Subsidence or other structural problems
- Render that is blown, hollow or coming away
If you’re not sure, just email us at info@mrmastic.co.uk and we’ll give you a straight answer before booking.
Joints and surfaces we work on
- Façade panels
- Joints between brick and frames
- Render & cladding joints
- Brickwork movement joints
- Concrete & block
- Copings & trims
Keeping the joints in good condition
No joint lasts for ever, but care makes a real difference. A few tips:
- Tell anyone working on the walls about the movement joints
- Get split or bare joints resealed while the damage is small
- Deal with leaking gutters that soak the joints below
- Keep high-pressure jets off the joints
Do not paint over the new sealant unless we have said the product is paintable. Paint can crack on a flexible joint.
A joint that has stopped moving pushes the movement elsewhere, usually as cracking in the brickwork or render nearby. Catch it early and you reduce the risk.
Common questions in Loch Baghasdail
Does the coastal weather in Loch Baghasdail 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.
Do you cover Loch Baghasdail for external mastic?
Yes, Loch Baghasdail is within the area we cover. Our work covers the whole of Scotland. You can send an email to info@mrmastic.co.uk and tell us what needs doing.
Can tenants book the work?
Yes, but check with your landlord or agent first. Landlords are often happy for the work to be arranged.
Where are you based?
We work from Crawley. We cover Loch Baghasdail and the rest of Na h-Eileanan Siar, along with the rest of our area.
Do you seal joints where cladding meets other materials?
Yes. Materials like render, brick, metal and uPVC all move differently, so a flexible sealant is needed where they meet. We choose one that suits both surfaces.
Why is there a gap in my brick wall?
It’s a deliberate gap that lets the wall expand and contract without cracking. It should be filled with flexible sealant, never mortar.
Do you work at height?
It depends on the building. Where joints can be reached safely, we’ll do them. Give us some details and we will confirm the access.
What do you put in the joint?
It depends on the joint: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.
Work for landlords, hotels and businesses
We also work for property managers and facilities teams. Several sites can be quoted together, and we are fully insured.
Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
What happens if it’s left?
Sealing over the top of old mastic doesn’t hold for long. The new layer can’t bond properly to old, weathered material, so we always take the old sealant out. In an older home around Loch Baghasdail, damp from a failed joint can get into timber and plaster, which is a far bigger job than the sealant.
The cost depends on the size of the job, how much old material has to come out and access to the work. We give a clear quote before work begins, so you know where you stand.
Why book with us
- An ARBOMaster approved applicator
- Sealant colour chosen to suit
- Domestic, commercial and hotel work
- Colour agreed with you before work begins
What happens on the day
Most of a good job is in the preparation, and we don’t rush it. Every joint is cleaned and dried before new material goes in. All told, the work takes anything from a few hours to several days, depending on the building. Around Loch Baghasdail, distance and access matter more than parking. Tell us how to find the property and how to reach the work.
- We start by walking round the building and agreeing the joints and the access.
- We cut out the old mastic and rake out anything in the joint.
- The faces are brushed clean and primed where the product requires it.
- We fit closed-cell backing rod to control the depth.
- We apply the sealant, tool it and check the whole run.
Getting ready for the visit
- Let us know about stairs, lifts or work at height
- For indoor joints, keep the area dry beforehand if you can
- Mention if the joints have been sealed before
Getting a quote
For external mastic in Loch Baghasdail, drop us a line at info@mrmastic.co.uk. Tell us what the problem is and where, and you will get a clear quote before work begins.