Shetland Islands · Scotland
External & façade joints in Toab, Shetland Islands
Sealing brickwork movement joints, render, cladding and façade joints for Toab, backed by a one-year guarantee. Call for a quick quote.
- Rain getting behind render or cladding at a joint
- Sealant pulling away from one side of the joint
- Cracked joints where brick meets render or frames
External mastic for homes and businesses in Toab
Many failed façade joints only get noticed once there’s a stain or a damp patch inside. We look over the joints, agree the ones to renew and reseal with a flexible, weatherproof product in a colour to suit. We work on concrete & block, render & cladding joints and joints between brick and frames, and common reasons people get in touch are gaps where render, brick and frames meet and rain getting behind render or cladding at a joint.
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.
Your job is guaranteed for a year, as with all our work.

- Place
- Toab (ZE3)
- Region
- Shetland Islands
- Cover
- A year, on every job
- Quotes
- Quoted before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Common problems we fix in Toab
Poor preparation causes many early failures: dusty or wet faces, no primer where one was needed, or old sealant left in. The sealant never bonds properly.
Look out for any of the following:
- Failed sealant between panels on a façade
- Joints pointed up with cement by mistake
- Joints with sealant missing in places
- Damp patches traced to an open external joint
In and around Toab, as anywhere, good external mastic starts with a clean, dry, properly prepared joint.
What to look for in a quote
- How the surfaces are prepared before sealing
- Which sealant they’ll use, and why
- How hidden problems are handled
- Whether you can choose the colour
FAQs for Toab
Does the coastal weather in Toab affect outside sealant?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. The right product, a clean joint and the right depth all help it cope.
Will you come out to Toab?
Yes, we do. Our work covers the whole of Scotland, islands included, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
How long before the joint can be used?
Many sealants skin over quickly but take longer to cure fully. We will give you the cure time for the product we used before we leave.
Is it OK to fill a movement joint with cement?
No, not if it’s a movement joint. Pointing it stops it working. We’ll reseal it with a flexible sealant.
How long does external mastic take?
As a guide, most jobs take a few hours for a handful of joints, longer for a whole elevation. Larger jobs naturally take longer, and we’ll say how long yours will take.
Are you an approved applicator?
Yes. We hold ARBOMaster approved applicator status.
Do I have to be there?
If the work is inside, we need someone to let us in. After that, you can carry on with your day.
Do you work for letting agents?
Yes, we do. We work in homes, commercial premises and hotels.
Towns and villages near Toab
Also in Toab
Keeping the joints in good condition
Simple care keeps the joints in good condition. Our advice:
- Wash walls gently around the sealant
- Clear growth from the base of walls and joints
- Point out the joints to other trades
- Have failed joints looked at early
Look over the joints once a year, ideally after winter. Splits, gaps at the edges or plants in the joint are early warning signs.
Leave a failed movement joint and water keeps getting into the wall. Over time it can mean damp inside, stained render or frost-damaged brick.
What happens on the day
All our tools and materials come with us in the van, so there’s nothing for you to buy. After a quick look at the joints together, the area is protected and the work begins. It normally takes a few hours for a handful of joints, longer for a whole elevation. Somewhere like Toab may be a longer drive, and the journey is planned ahead. Tell us about tracks, gates, a ferry crossing or anything unusual about getting there.
- 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.
Getting ready for the visit
- Tell us if parking is tricky
- Clear items away from the joints we are working on
- Mention any leaks or damp you’ve noticed
Getting a quote
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and email photos if that’s easy.
Advice
For landlords and businesses
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 be quoted together.
If you manage several properties in or around Toab, jobs at different addresses can go on one quote. Send us the addresses and the work at each, and pictures by email help.
DIY versus a professional finish
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
How we quote for external mastic
Every job gets its own quote. These are the things that affect it:
- Whether there’s mould to deal with
- How many rooms, windows or areas are involved
- Access and height
- The product the joint needs
The cost depends on how much there is to do, how hard the old material is to remove and access to the work. You will have a clear quote before any work starts, so you know where you stand.
What we need to know
You don’t need to know the technical terms. It helps if you can tell us:
- If it’s domestic, commercial or a hotel
- Pictures of the joints, sent by email
- Access, such as stairs, a lift or height
- What the problem is, such as mould, gaps, leaks or cracking
To get a quote, drop us a line at info@mrmastic.co.uk with the location and a short description of the problem. You will have a clear quote before any work starts.
Walls and rooflines in Toab
Toab is within about 1 mile of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on movement joints and outside wall joints, which can dry out and crack sooner where a building faces the weather. Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and failed outside joints work against that.
Whether the job is in Toab itself or nearby, the right material for each joint matters as much as a neat finish.
Toab is in the Shetland Islands. If you need external mastic in Toab, it’s easy to get a quote: please send an email to info@mrmastic.co.uk. We cover the Shetland Islands from our Crawley base, Toab included. Across the Shetland Islands, we cover 63 places, Toab among them.
Work in ZE3 works the same way as everywhere else we cover. We also cover the places around Toab: Hestingott (1 mile north-west), Exnaboe (1 mile east), Scatness (1 mile south), Boddam (2 miles north) and South Scousburgh (3 miles north). Island and remote addresses take a little more planning, so please mention your location when you send an email to info@mrmastic.co.uk.
What’s near Toab
Well-known places in the area include Shetland Crofthouse Museum (1.9 miles north). Not far away are Loch of Huesbreck and Sumburgh Head RSPB reserve.
Why deal with it now?
Running new sealant over the old bead rarely lasts. New sealant doesn’t bond well to old, weathered sealant, so the old joint is cut out fully first. In an older home around Toab, damp from a failed joint can get into timber and plaster.
Homes and businesses are quoted the same way: the amount of work, the access and the products needed, plus any working-time requirements on site. Ask us for a quote and we’ll go through it with you.
Why choose Mr Mastic in Toab
- Approved under the ARBOMaster scheme
- White, clear, grey or coloured to suit, where the product allows
- Every job guaranteed for a year
- Old sealant always removed completely
See our cost guide and customer reviews.
