Shetland Islands · Scotland
Aywick External Mastic
Movement joints in Aywick need attention? We remove the old material, prepare the joints and seal them properly, with a one-year guarantee.
- Movement joints with cracked, split or missing sealant
- Weeds or debris growing in open joints
- Failed sealant between panels on a façade
When to call us in Aywick
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.
These are the problems we are asked about most:
- Hard, crazed mastic that has stopped moving
- Gaps where render, brick and frames meet
- Movement joints with cracked, split or missing sealant
- Rain getting behind render or cladding at a joint
In and around Aywick, as anywhere, good external mastic starts with a clean, dry, properly prepared joint.
What your quote should include
- What guarantee comes with the work
- What product goes in the joint
- Who does the work, and how experienced they are
- What happens if the job turns out different
External mastic for homes and businesses in Aywick
We cut out failed sealant, set the joint depth with closed-cell backing rod and reseal with a low-modulus exterior sealant. We pick a colour that sits well with the wall. We work on brickwork movement joints, copings & trims and concrete & block, and common reasons people get in touch are panel joints letting water in and gaps where render, brick and frames meet.
Across smaller places in Scotland, stone and harled cottages, farm buildings and newer houses often stand exposed to wind and rain. Gutter joints and wall joints take a battering, so they need a sealant that moves with the building.
Every job is covered by a 12-month guarantee.
- Where
- Aywick (ZE2)
- Wider area
- Shetland Islands
- Guarantee
- A year, on every job
- Price
- A clear price before we start
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Common questions in Aywick
Do you cover smaller places like Aywick?
Yes, smaller places are covered as well as towns. Our work covers the whole of Scotland, including the islands, where work is planned around ferry crossings. Just mention lanes, gates or anything else about the route when you book.
Does the coastal weather in Aywick affect outside sealant?
Coastal homes put outside sealant through more weather than inland ones, so the choice of sealant and the preparation matter even more. It’s worth checking the walls that face the sea first.
How long does external mastic take?
It depends on the size of the job, but most jobs take a few hours for a handful of joints, longer for a whole elevation. We will give you a better idea when we quote.
What is backing rod for?
Backing rod controls the sealant depth and keeps it off the back of the joint. That way it bonds to the two sides only and can stretch.
Where do you work from?
We’re based in Crawley, and we work across South East England, London and Scotland.
Does someone need to be in?
It depends on the job. Inside work needs someone to give us access.
Will you leave a mess?
Not at all. The area is protected while we work and cleaned up afterwards.
How do I get a quote for external mastic in Aywick?
It depends on the job, so we quote each one individually. For a quick quote, send an email to info@mrmastic.co.uk with a short description of the job.
External mastic in Aywick: local notes
Aywick 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. Harled (roughcast) walls are common in Scotland, and joints where harling meets other materials need a sealant that can grip and flex.
Historic houses such as Windhouse, about 4.2 miles north-west, show how far back building around Aywick goes.
Aywick is in the Shetland Islands. From the centre of Aywick to the outskirts, external mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Our area takes in 63 places across the Shetland Islands.
Jobs for external mastic in ZE2 is quoted and booked the same way as anywhere else. Neighbouring places we cover for external mastic include Mid Yell (3 miles north), Camb (4 miles north), Burravoe (4 miles south), Houbie (6 miles north-east) and Mossbank (9 miles south-west). Island and remote addresses take a little more planning, so tell us where you are when you ask for a quote.
Near you in Aywick
Open spaces near Aywick include Loch of Quheyin and White Hill of Vatsetter.
What affects the cost of external mastic
The price is agreed before any work begins. It’s based on:
- The type of sealant required
- The number and length of the joints
- Any mould that needs treating
- How many areas need sealing
Combining jobs into one visit generally makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. You will get one clear quote for the whole job.
What we need to know
When you call or email, these details help:
- If someone has resealed it before
- Any access issues, like height or stairs
- The type of property
- The problem you’ve noticed
If you’re in Aywick and need external mastic, drop us a line 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 work begins.
More services for Aywick
How the visit works
When we arrive, we start by going over the job with you, so you know exactly what we are doing. Surfaces next to the work are protected before any work begins. The work normally takes a few hours to a few days, depending on the length of joint and the access. Outside jobs in Aywick need a dry day, because sealant won’t bond to a wet joint, so an outdoor job can move if the forecast changes. Indoor work goes ahead whatever the weather.
- Each joint is checked and the colour of the new sealant agreed.
- Failed sealant is removed back to clean, sound faces.
- Backing rod goes in so the sealant can stretch between the two faces.
- We prime the faces where required.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
Getting ready for the visit
- Move anything stored near the joints
- Try not to wet indoor joints just before the visit
- Mention any parking rules near the property
Getting a quote
We quote each job on its own, so start by telling us what you need. Just send an email to info@mrmastic.co.uk with the details, and pictures are welcome.
Advice
Honest limits
To be straight with you, there are a few things sealant won’t fix:
- Subsidence or other structural problems
- Render that is blown, hollow or coming away
- Cracked brickwork or render that needs a builder or plasterer
If in doubt, email us at info@mrmastic.co.uk and we will say what we think before you book.
Surfaces we seal
- Render & cladding joints
- Joints between brick and frames
- Concrete & block
- Brickwork movement joints
- Façade panels
- Copings & trims
How the job changes by surface
Brickwork movement joints
People sometimes point up a brick movement joint by mistake. If that is happened, we rake it out and reseal it properly.
Cladding and façade panels
Panel systems often rely on sealant between and around the panels. Each joint gets a sealant that suits the panel and its movement.
DIY sealant or a professional job?
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
If you’ve already had a go yourself, that is fine. We cut it out and start again, so just mention it when you contact us.
Keeping the joints in good condition
To keep the joints looking good and working properly:
- Fix overflowing gutters above sealed joints
- Tell anyone working on the walls about the movement joints
- Wash walls gently around the sealant
- Ask before painting over external sealant
Make sure anyone working on the wall later knows where the movement joints are. They must stay as flexible joints, never rendered or pointed over.
If you can see gaps, plants or bare sections in a joint, have it checked. Early work is quicker and leaves a better finish.