Shetland Islands · Scotland
External & façade joints in Aith, Shetland Islands
External mastic across Aith and nearby, with every bit of old sealant taken out first and a 12-month guarantee.
- Damp patches traced to an open external joint
- Movement joints filled with mortar instead of sealant
- Weathered mastic that no longer stretches
External mastic in Aith, done properly
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. We’re often asked to deal with movement joints with cracked, split or missing sealant and rigid filler in a joint that should flex, on façade panels, copings & trims and joints between brick and frames.
Stone walls need a stone-friendly sealant, as acetoxy products can attack some stone. On newer homes, the movement joints and roofline trims are what need watching.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we will sort it.
- Location
- Aith (ZE2)
- Wider area
- Shetland Islands
- Cover
- 12 months on all our work
- Quotes
- Quoted before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Why it’s worth doing now in Aith
A properly done movement joint is an even line in a colour that suits the wall. A rushed bead with no backing looks untidy and does not last, so it pays to do it properly once. Around Aith, water from a failed joint in an older stone home can soak into timber and plaster, which is a far bigger job than the sealant.
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
Why choose Mr Mastic in Aith
- We agree the colour with you first
- We leave the area clean and tidy
- Every job guaranteed for a year
- Fully insured
Read how sealant jobs are priced and customer reviews.
Common questions in Aith
Will you come out to Aith?
Yes. Aith is within the area we cover, which takes in towns, villages and rural addresses. Our work covers the whole of Scotland, including the islands, where work is planned around ferry crossings. Let us know about access, parking and anything unusual about getting there when you book.
Do you cover Aith for external mastic?
Yes. We work across all of Scotland, and Aith is part of that. You can drop us a line at info@mrmastic.co.uk and tell us what needs doing, and we’ll give you a clear price.
Do I have to be there?
Access is agreed with you when the job is booked. For inside work, that normally means someone being in.
Where do you work from?
Mr Mastic is based in Crawley. We cover Aith and the rest of the Shetland Islands, along with the rest of our area.
What colours does the sealant come in?
The aim is a neat, even joint in a colour that suits the wall. Colour is agreed with you before we begin, matched as closely as the range allows.
Will there be a smell?
That depends on the sealant. Some products have a noticeable smell, others very little, and any smell fades as they cure.
What do you need from me for a quote?
Just the basics: the address or postcode, what’s wrong and any access issues. Then email us at info@mrmastic.co.uk.
Do you take out the old sealant first?
Yes, every time. New silicone does not stick to old silicone, so any old material comes out before anything new goes in.
What affects the quote in Aith
Call for a quick quote. What matters most is:
- The number and length of the joints
- Which sealant suits the joint
- The old material and how stubborn it is
- Mould in or behind the old joints
We do not show prices on the website, because the cost depends so much on the job itself. Call for a quick quote and we will talk you through it.
What to tell us for a quote
There’s no need for technical detail. Just tell us:
- Access, such as stairs, a lift or height
- Whether it has been sealed before
- How many joints, rooms or windows are involved
- Where the property is
There’s no standard price list, because every job is different. Instead, your job gets its own clear quote. To get started, email us at info@mrmastic.co.uk.
Landlords, agents and businesses in Aith
Landlords and agents in Aith can book us as well as householders. Sealant work between tenants is a simple way to keep a property in good order.
Letting agents often deal with us directly. Tell us the address, the job and how access works and we will give you a quote.
Should I try it myself 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 matched to the joint and its conditions, then guaranteed for a year.
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.
When to call us in Aith
The wrong product in a moving joint is a classic cause. A high-modulus or general-purpose sealant can be too rigid for a busy joint, and it tears off the sides.
The problems people usually mention when they call include:
- Sealant pulling away from one side of the joint
- Weeds or debris growing in open joints
- Joints with sealant missing in places
- Old sealant gone brittle and cracked
For an older house near a landmark such as Aith Church, an extension built onto an older house moves differently, and the joint between them takes the strain.
What your quote should include
- What preparation is included
- How the colour is chosen
- What the quote includes, VAT included or not
- What insurance they hold
What the job involves on each surface
Brickwork movement joints
Clay brickwork grows slightly over its life and moves with the weather. That movement goes into the joint, so the sealant in it must stay soft and stretchy.
Copings and trims
Coping and trim joints face rain and sun head on. Each is resealed with a weatherproof, flexible sealant.
The process
We bring everything the job needs with us, 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 anything from a few hours to several days, depending on the building. Outside jobs in Aith need a dry day, because sealant will not bond to a wet joint, so external jobs may need to move if the day turns wet. Indoor work goes ahead whatever the weather.
- 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.
- Joint faces are cleaned back and primed if the sealant needs it.
- Backing rod sized to the joint goes in to set the depth.
- The exterior sealant is applied, tooled and checked along its length.
Preparing for the visit
- Clear items away from the joints we’re working on
- Let us know if you’ve seen damp or leaks
- Plan for the work area to be out of bounds to pets and children
Getting a quote
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and email pictures if that is easy.
Advice
More services for Aith
Outside joints around Aith
Aith is close to 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. On the islands, wind and salt spray are hard on outside sealant.
In and around Aith, as anywhere, good external mastic starts with a clean, dry, properly prepared joint.
Aith is in the Shetland Islands. For external mastic in and around Aith, please email us at info@mrmastic.co.uk for a quick quote. We cover the Shetland Islands from our Crawley base, Aith included. Aith is one of 63 places in the Shetland Islands where we work.
Work in ZE2 works the same way as everywhere else we cover. Whether your property is on Marthastoon and Wirligert or anywhere close by, we can help. Aith sits on or near the B9071, which makes travel easy. If you’re just outside Aith, we cover Kalliness (4 miles south-east), Voe (6 miles north-east), Easter Skeld (7 miles south), Dury (7 miles east) and Vassa (8 miles east). Within a short drive, we also cover Lerwick (12 miles south-east), Sound (12 miles south-east), Scalloway (11 miles south) and Brae (8 miles north). For island and remote addresses, a little more planning is needed, so mention it when you ask for a quote.
Near you in Aith
The countryside around Aith includes Loch of North-House and Russaness Hill.