Highland · Scotland
External & façade joints in Stratherrick, Highland
External mastic for Stratherrick, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Weeds or debris growing in open joints
- Panel joints letting water in
- Movement joints filled with mortar instead of sealant
External mastic for homes and businesses in Stratherrick
A movement joint is only as good as its depth. Closed-cell backing rod sets the depth and stops the sealant sticking to the back, leaving it bonded to two faces so it can move with the wall. We work on render & cladding joints, brickwork movement joints and façade panels, and people most often call us about weathered mastic that no longer stretches and movement joints with cracked, split or missing sealant.
Outside joints can only be sealed when they’re dry, so work in Stratherrick depends on the weather. Let us know about access to every wall and roofline.
You are covered for a year from the day we finish. If anything is not right with it, send an email to info@mrmastic.co.uk.
- Location
- Stratherrick (IV2)
- Wider area
- Highland
- Cover
- 12 months on all our work
- Quote
- A clear quote up front
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Landlords, agents and businesses in Stratherrick
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we will quote.
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. Several properties can go on one quote.
Do you need external mastic in Stratherrick?
Sometimes a movement joint was filled with mortar or a rigid filler by mistake. With the joint locked solid, the movement turns into cracks elsewhere in the wall.
Look out for any of the following:
- Weeds or debris growing in open joints
- Joints with sealant missing in places
- Damp patches traced to an open external joint
- Failed sealant between panels on a façade
For jobs in and around Stratherrick, choosing the right material for each joint is as important as a tidy finish.
Questions to ask before you book
- How long to leave it before use
- Are they insured?
- Who turns up on the day
- Which colour the sealant will be
Can I do it myself?
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
Stratherrick questions
Is Stratherrick within the area you cover?
Yes, smaller places are covered as well as towns. We work across all of Scotland. Let us know about access, parking and anything unusual about getting there when you book.
Can you do external mastic in Stratherrick?
Yes, Stratherrick is within the area we cover. Our work covers the whole of Scotland. Just drop us a line at info@mrmastic.co.uk with a few details of the job.
Do you remove the old sealant?
Yes. We cut out all the old sealant and clean the joint.
Why is there a gap in my brick wall?
A movement joint is a planned break in the wall that absorbs expansion and shrinkage. It should be filled with flexible sealant, never mortar.
Do you have insurance?
Yes. We are fully insured for domestic and commercial work.
What colours does the sealant come in?
We aim for a joint that suits the wall rather than one that jumps out. Colour is agreed with you before we begin from the range available.
Which products do you use?
Products from Arbo and Everbuild, among others, picked for each joint. We’ll tell you what we’re using and why.
What do you need from me for a quote?
The location, the problem and the rough size of the job. Photos by email help too.
Also near Stratherrick
Other services in Stratherrick
How it works
On the day, there’s very little for you to do. Show us the job and we will take it from there. The work itself takes a few hours for a handful of joints, longer for a whole elevation from start to finish. Outside jobs in Stratherrick need a dry day, because sealant will not bond to a wet joint, so an outdoor job can move if the forecast changes. Indoor work goes ahead whatever the weather.
- We start by walking round the building and agreeing the joints and the access.
- 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.
- We fit closed-cell backing rod to control the depth.
- We apply the sealant, tool it and check the whole run.
How to prepare
- Let us know about parking restrictions
- Let us know about earlier repairs to the joints
- Plan for the work area to be out of bounds to pets and children
Ask for a quote
Need a quote? Please drop us a line at info@mrmastic.co.uk and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.
Advice
Walls and rooflines in Stratherrick
Harled (roughcast) walls are common in Scotland, and where harling meets frames, pipes and other materials, the joint needs a flexible sealant that grips a rough surface. Stratherrick is in the west of Scotland, which is wetter than the east, so there’s plenty of rain for movement joints and outside wall joints to keep out.
Around Stratherrick, as everywhere, external mastic is only as good as the preparation behind it.
Stratherrick is about 22 miles south-west of Inverness, in Highland. Every kind of property in Stratherrick is covered for external mastic. Every job comes with our one-year guarantee. Our Highland coverage runs to 253 places, and Stratherrick is one of them. For nearby work, see our Dundee page.
Work in IV2 works the same way as everywhere else we cover. We also cover Invermoriston (4 miles north-west), Gorthleck (5 miles north-east), Fort Augustus (7 miles south-west), Newtown (9 miles south-west) and Lewiston (10 miles north). Remote and island addresses need a little more planning, so please mention your location when you email us at info@mrmastic.co.uk.
Local landmarks in Stratherrick
For a walk, there’s Loch Knockie and Cnoc a' Choimleum.
Aftercare tips
Looking after new joints is easy, and it makes a real difference:
- Make sure movement joints aren’t pointed over
- Avoid pressure-washing directly into sealant joints
- Check external joints each spring
- Deal with leaking gutters that soak the joints below
Have a quick look at the joints each spring. Watch for splits, edges coming away or growth in the joint.
A joint that has stopped moving pushes the movement elsewhere, often as cracks near the joint. Resealing it early helps prevent that.
How the job changes by surface
Brickwork movement joints
Brick movement joints are often mistaken for a missing mortar line. Where one has been mortared, we cut it out and reseal it with sealant.
Joints between dissimilar materials
Each side of the joint may need its own preparation. Both surfaces are cleaned and primed as the product requires.
What happens if it’s left?
Sealing over the top of old mastic does not hold for long. New sealant doesn’t bond well to old, weathered sealant, so the old joint is cut out fully first. 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.
Every job is a little different, so each one gets its own quote. Size, access and the product the joint needs all play a part.
Why choose Mr Mastic in Stratherrick
- A choice of colours where the product allows
- Anti-fungal silicone where joints get wet
- Sealant colour chosen to suit
- 20+ years of sealant experience
See our cost guide or our reviews.