Highland · Scotland
Portmahomack External Mastic
We cover Portmahomack for sealing brickwork movement joints, render, cladding and façade joints. Old sealant removed completely, joints prepared properly and every job guaranteed for a year.
- Failed seals between different materials
- Failed sealant between panels on a façade
- Movement joints filled with mortar instead of sealant
Leave it or put it right?
Sealing over the top of old mastic does not hold for long. The new layer cannot bond properly to old, weathered material, so we always take the old sealant out. Exposed walls in smaller Scottish places take a lot of wind and rain, and damp in stone or harled walls takes a long time to dry once water gets behind a joint.
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 work begins.
Why choose Mr Mastic in Portmahomack
- Approved under the ARBOMaster scheme
- 20+ years of sealant experience
- Colour picked to suit the job
- Every job guaranteed for a year
External mastic for homes and businesses in Portmahomack
Getting the depth right is half the job. Backing rod controls how deep the sealant goes and keeps it off the back of the joint, so it bonds to the two sides only and can stretch. We’re often asked to deal with joints pointed up with cement by mistake and leaking joints around cladding and façade panels, across brickwork movement joints, concrete & block and façade panels.
Stone walls need a stone-friendly sealant, as acetoxy products can attack some stone. Newer houses need their movement joints and roofline trims kept sound.
Whatever the size of the job, it’s backed by our one-year guarantee.
- Place
- Portmahomack (IV20)
- Region
- Highland
- Guarantee
- One year on every job
- Quotes
- A clear price before work begins
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Landlord and commercial work in Portmahomack
From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance that we can handle for you.
Walls and rooflines in Portmahomack
Portmahomack is within about 1 mile of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That is hard on movement joints and outside wall joints, especially on the side facing the sea. Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and sound outside sealant is part of that.
Whether the job is in Portmahomack itself or nearby, the right material for each joint matters as much as a neat finish.
Portmahomack is about 18 miles north of Nairn, in Highland. Across the IV20 area, our applicators can take on external mastic. 253 places in Highland are on our list, large and small. You can also see our page for Aberdeen, roughly 79 miles from Portmahomack.
Here we cover the IV20 postcode area for external mastic. If you need external mastic at a property on Main Street, Bank Street and Well Street or a nearby road, our applicators can take on the job. We also cover Inver (4 miles west), Hilton of Cadboll (6 miles south-west), Loans of Tullich (6 miles south-west), Balintore (6 miles south-west) and Fearn (7 miles south-west). Larger places within reach include Tain (9 miles west), Dornoch (8 miles west), Golspie (11 miles north-west), Brora (12 miles north) and Cromarty (13 miles south-west). If you are somewhere remote, the job takes a little more planning.
What’s near Portmahomack
Locally, jobs take us to homes and businesses close to Terrace in Portmahomack and the streets around them. Well-known places in the area include Ballone Castle (0.9 miles south-east).
What affects the cost of external mastic
The price is agreed before any work begins. It takes into account:
- Any working-time requirements on site
- Access and height
- Which sealant suits the joint
- Whether old sealant or filler has to be cut out
No two jobs are quite the same, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all play a part.
What to tell us for a quote
You don’t need to know the technical terms. It helps if you can tell us:
- The problem you’ve noticed
- A few pictures by email, if you can
- How we’d reach the joints
- Where the job is, and your postcode
If you’re in Portmahomack and need external mastic, email us at info@mrmastic.co.uk. A short description of the job and where it is helps us quote, and you’ll get a clear quote before we start.
How the visit works
Good joint work is mostly preparation, and we don’t rush it. 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. Around Portmahomack, distance and access matter more than parking. Tell us how to find the property and how to reach the work, and the visit is planned around that.
- First, the joints are inspected and the access agreed.
- 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.
- Backing rod sized to the joint goes in to set the depth.
- The exterior sealant is applied, tooled and checked along its length.
Before we arrive
- Mention any tricky access
- Move anything stored near the joints
- For indoor joints, keep the area dry beforehand if you can
Get a quote
Want a quote for external mastic? Please send an email to info@mrmastic.co.uk with a few details. You will know what we plan to do, and what it will cost, before any work begins.
Advice
Your questions about external mastic in Portmahomack
Is Portmahomack in your area for external mastic?
Yes. Our work covers the whole of Scotland, and Portmahomack is part of that. Just send an email to info@mrmastic.co.uk with a few details of the job.
Is Portmahomack within the area you cover?
Yes. Portmahomack is within the area we cover, which takes in towns, villages and rural addresses. We work across all of Scotland. Just mention lanes, gates or anything else about the route when you book.
What sealant do you use?
Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference, and we will tell you what we are using.
What should I tell you?
The location, the problem and the rough size of the job. Photos by email help too.
Is it worth trying it myself?
Some simple jobs can be done by a careful DIYer. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
Is there a guarantee?
Yes, always. There’s a 12-month guarantee on every job, large or small.
Where are you based?
Our base is in Crawley, and we work across South East England, London and Scotland.
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’ll confirm what’s needed.
DIY sealant or a professional job?
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 does not work out, we can still put it right.
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.
Looking after it afterwards
Looking after new joints is easy:
- Never let anyone fill a movement joint with mortar
- Clear growth from the base of walls and joints
- Show decorators and builders where the movement joints are
- Check external joints each spring
Make sure anyone working on the wall later knows where the movement joints are. They should be kept open and resealed, not filled.
Leaks behind façade panels and render often go unseen. By the time there’s a damp patch, the damage can be well established so early resealing is worth it.
When to call us in Portmahomack
Every building moves. Brickwork grows a little over the years, blockwork and concrete shrink, and all of it moves with heat and moisture. The sealant in the movement joints takes that strain.
Any of these means the joints need attention:
- Weeds or debris growing in open joints
- Movement joints filled with mortar instead of sealant
- Cracked joints where brick meets render or frames
- Water getting into walls through failed joints
Around Portmahomack, as everywhere, external mastic is only as good as the preparation behind it.
Comparing quotes
- The length of the guarantee
- Whether VAT is included
- What product goes in the joint
- How the surfaces are prepared before sealing