Highland · Scotland
External Mastic in Ullapool
Movement joints in Ullapool need attention? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Failed sealant between panels on a façade
- Moss and dirt in joints with no sealant left
- Movement joints filled with mortar instead of sealant
External mastic in Ullapool, done properly
A movement joint is a deliberate break that lets a wall expand and contract. 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 joints between brick and frames, copings & trims and concrete & block, and common reasons people get in touch are moss and dirt in joints with no sealant left and rigid filler in a joint that should flex.
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.
All of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.
- Location
- Ullapool (IV26)
- Region
- Highland
- Guarantee
- One year on every job
- Price
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
When to call us in Ullapool
Joints sealed without backing rod, or far too deep, rarely last. Sealant bonded to three sides has nowhere to go and rips as the joint opens.
If you can see any of these, it’s time to have the joints looked at:
- Failed seals between different materials
- Movement joints filled with mortar instead of sealant
- Joints where the bead has come unstuck
- Brick movement joints where the sealant has split
Homes close to Ullapool old parish church include some older properties, and an extension built onto an older house moves differently, and the joint between them takes the strain.
Questions to ask before booking
- Who turns up on the day
- When the joint can take water or movement
- What preparation is included
- What happens if they find a problem under the old sealant
Walls and rooflines in Ullapool
Ullapool 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. The west of Scotland is wetter than the east, so there’s plenty of rain for movement joints and outside wall joints to keep out.
Managing a site like Ullapool School? Then larger buildings have long runs of movement joint that eventually need resealing.
Ullapool is in Highland. We carry out external mastic for homeowners, landlords and businesses in Ullapool, as part of our work across Highland. We cover 253 towns and villages across Highland, from the larger towns to small villages.
All of IV26 is within our area for external mastic, from the main roads to the quietest streets. We cover properties on Market Street, Ladysmith Street and Fraser Place. Main roads around Ullapool include the A893, so getting to you is simple. Neighbouring places we cover for external mastic include Achiltibuie (10 miles north-west), Laide (14 miles west), Aultbea (16 miles west), Àird (17 miles west) and Kinlochewe (21 miles south). For island and remote addresses, a little more planning is needed, so let us know when you get in touch.
Around Ullapool
Well-known places in the area include Ullapool Museum (less than half a mile south-west). Open spaces near Ullapool include Loch Dubh Beag.
Keeping the joints in good condition
To keep the joints looking good and working properly:
- Fix overflowing gutters above sealed joints
- Never let anyone fill a movement joint with mortar
- Avoid pressure-washing directly into sealant joints
- Don’t let climbing plants root in the sealant
Follow the cure time we give you before the joint is knocked or disturbed. The surface skins over quickly, but full cure takes longer.
An open movement joint lets rain into the wall every time it pours. Over time it can mean damp inside, stained render or frost-damaged brick, all bigger jobs than a reseal.
What affects the quote in Ullapool
There’s no set price list, because jobs vary so much. The quote depends on:
- The number of rooms or windows
- Mould in or behind the old joints
- When we can work, for business premises
- The number and length of the joints
Doing several joints on one visit is normally more efficient than separate visits, so it’s worth mentioning everything you’d like done. We will send you a clear quote for the lot.
Helping us quote
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- What the problem is, such as mould, gaps, leaks or cracking
- If it’s domestic, commercial or a hotel
- If someone has resealed it before
- A few photos by email, if you can
To get a quote, send an email to info@mrmastic.co.uk with the location and a short description of the problem. You’ll have a clear quote before any work starts.
What sealant work cannot fix
Some problems need a builder, plumber or other trade rather than us:
- Cracks in the bricks or render themselves, away from the joints
- Render that is blown, hollow or coming away
- Cutting new joints into brickwork, which is building work rather than sealant work
Not sure which it is? You can email us at info@mrmastic.co.uk and we will tell you honestly before booking.
Joints and surfaces we work on
- Copings & trims
- Render & cladding joints
- Joints between brick and frames
- Concrete & block
- Façade panels
- Brickwork movement joints
What we do, step by step
The work is kept neat and contained to the joints we’re treating, so you can get on with your day. The job generally takes a few hours to a few days, depending on the length of joint and the access, and we explain the cure time before we leave. In smaller Scottish places, parking is usually less of an issue than access and distance. Let us know how to find you and how to reach the joints.
- We look at every joint and agree a colour to suit the wall.
- Failed sealant is removed back to clean, sound faces.
- Closed-cell backing rod is pushed in so the sealant bonds to two sides only.
- Primer is applied wherever the sealant needs it.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
How to prepare
- Let us know if you’ve seen damp or leaks
- Where the joints are inside, avoid wetting them before we arrive
- Tell us about access, such as stairs, a lift or high-level joints
Ask for a quote
Every job is quoted individually. Just email us at info@mrmastic.co.uk with the details.
Related advice
Different surfaces, different methods
Concrete and blockwork
The face of concrete or block is often dusty, so cleaning and priming matter. A primer goes on where the product requires one before sealing.
Render joints
Rendered walls have joints at beads, openings and changes of material. We reseal them with a flexible exterior sealant that suits the render colour.
Leave it or put it right?
Done well, a resealed joint is a neat, straight line that suits the wall. A rushed bead with no backing looks untidy and doesn’t last. In a place like Ullapool, small leaks are easy to put off, but water through a failed joint keeps working away until it’s fixed.
A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether we need extra access for height. We take all of that into account in your quote.
Why Ullapool customers choose us
- Every job guaranteed for a year
- White, clear, grey or another colour, product permitting
- Experience in homes, commercial sites and hotels
- Full insurance on every job
Take a look at how sealant jobs are priced or what customers say.
Towns and villages near Ullapool
What else we do in Ullapool
Ullapool: your questions answered
Do you cover Ullapool for external mastic?
Yes. Our work covers the whole of Scotland, and Ullapool is part of that. You can drop us a line at info@mrmastic.co.uk and tell us what needs doing.
Do you cover smaller places like Ullapool?
Yes. Ullapool is within the area we cover, which takes in towns, villages and rural addresses. Our work covers the whole of Scotland. Let us know about access, parking and anything unusual about getting there when you book.
Why do you put foam in the joint first?
We fit closed-cell backing rod wherever the joint depth needs controlling. It controls the depth and stops the sealant bonding to the back.
How long will you be here?
Typically it takes a few hours for a handful of joints, longer for a whole elevation. Larger jobs naturally take longer, and we will tell you how long to expect.
Do you seal joints where cladding meets other materials?
Yes. Materials like render, brick, metal and uPVC all move differently, so the joint between them must be flexible. The sealant is matched to both sides.
Where is Mr Mastic based?
We’re a Crawley-based firm, with over 20 years’ experience. Our area covers South East England, London and Scotland.
What should I tell you?
Only a few details: the address or postcode, what’s wrong and any access issues. After that, simply send an email to info@mrmastic.co.uk.
What sealant do you use?
Each joint gets the product that suits it. Movement, water and weather all affect the choice, and we will tell you what we are using.