Shetland Islands · Scotland
Sand mastic for sash & case windows in Aywick, Shetland Islands
Window and door surrounds in Aywick need attention? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Silicone on a period window that looks wrong
- Crumbling sand mastic round a window
- Window mastic to renew ahead of painting
FAQs for Aywick
Does the coastal weather in Aywick affect outside sealant?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. The right product, a clean joint and the right depth all help it cope.
Is Aywick in your area for sand mastic?
Yes, Aywick is within the area we cover. We work across all of Scotland. You can send an email to info@mrmastic.co.uk and tell us what needs doing.
Will you leave a mess?
Tidy work is part of the job. Nearby surfaces are protected, and we clear up when we are done.
Does someone need to be in?
That depends on where the joints are. For work indoors, someone needs to let us in, and for outside work we will agree access with you when we book.
What information do you need?
Tell us what needs doing and where, with photos by email if possible. We’ll ask anything else we need to know.
How long will you be here?
That depends on how much there is to do, but as a guide it takes a few hours per window, depending on the condition of the joints. We will give you a better idea when we quote.
What does sand mastic cost?
It depends on the job, so we quote each one individually. For a quick quote, send an email to info@mrmastic.co.uk and tell us what needs doing and where.
Is it worth trying it myself?
That depends on the joint. High-level, external movement and fire-rated joints are professional jobs, while a short indoor joint may be within reach.
How we handle sand mastic in Aywick
Across Aywick, we renew sand mastic around sash and case windows. Each joint is raked out, prepared and pointed by hand for a neat, traditional finish. If you have a silicone bead on a sash window that spoils the look and cement or filler used on old window joints that has cracked, we can put it right, on tenement windows, stone surrounds and timber door frames alike.
Mastic can only go onto a dry joint, so outside work in Aywick depends on the weather, and longer journeys are planned in advance. Tell us about access to all the windows and doors, upstairs included.
We stand behind the work with a one-year guarantee, so you’re covered after we have gone.
- Place
- Aywick (ZE2)
- Wider area
- Shetland Islands
- Guarantee
- One year on every job
- Price
- Quoted before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026

Surface by surface
Tenement and terrace windows
Rows of sash windows on tenements and terraces often need renewing together. We can do one window or several.
Stone surrounds
Stone openings are rarely perfectly straight, so the joint varies in width. We shape it by hand to follow the stone.
Sand mastic in Aywick: local notes
Aywick 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. Both are hard on the mastic around older windows and doors, which can dry out and crack sooner where a building faces the weather. Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and sound outside sealant is part of that.
In and around Aywick, as anywhere, good sand mastic starts with a clean, dry, properly prepared joint. Historic houses such as Windhouse, about 4.2 miles north-west, show how far back building around Aywick goes, and older homes nearby need a sealant that suits their walls.
Aywick is in the Shetland Islands. Whether you are in the middle of Aywick or further out, sand mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Aywick is one of 63 towns and villages in the Shetland Islands where we work for sand mastic.
Postcode districts we cover here for sand mastic: ZE2. We also cover the places around Aywick: Mid Yell (3 miles north), Camb (4 miles north), Burravoe (4 miles south), Houbie (6 miles north-east) and Mossbank (9 miles south-west). For island and remote addresses, a little more planning is needed.
Local landmarks in Aywick
The countryside around Aywick includes Loch of Quheyin and White Hill of Vatsetter.
For landlords and businesses
Letting agents often deal with us directly. Tell us the address, the job and how access works and we will give you a quote.
Whether it’s one flat or a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
How to look after the new joints
Looking after new joints is easy, and it makes a real difference:
- Go gently near the mastic when preparing windows
- Get any rot dealt with first
- Check the mastic when you check the paintwork
- Do not run silicone over sand mastic
Don’t touch or press the mastic while it hardens. It forms a skin fairly soon, but takes longer to harden fully.
Once mastic starts to crumble, rain gets in. It can soak into the frame and the surrounding masonry so early renewal protects both.
What else we do in Aywick
How the visit works
There’s no need to move everything out, only the area right around the joints. We protect the rest, and the job takes anything from a few hours to a full day, depending on how many windows for a typical job. Outdoor work around Aywick depends on the weather, as sealant needs a dry surface, so external jobs may need to move if the day turns wet. Indoor work goes ahead whatever the weather.
- We look at the surrounds with you and agree the joints to renew.
- We remove the old, loose mastic.
- Deep gaps are packed so the mastic sits at the right depth.
- We apply the mastic by hand and shape it.
- The surface is finished to suit the stone or brick.
Getting ready for the visit
- Let us know about parking restrictions
- Let us know about earlier repairs to the joints
- Mention any leaks or damp you’ve noticed
Get a quote
Asking for a quote is easy: let us know the job and the location. A few pictures by email make the job easier to understand, and we will come back to you with a quote.
Advice
Why act early in Aywick
Filling over old, loose mastic does not last. We remove the loose material first so the new mastic stays put. In a place like Aywick, small leaks are easy to put off, but water through a failed joint keeps working away until it’s fixed.
What it costs depends on the size of the job, how hard the old material is to remove and access to the work. You’ll have a clear quote before any work starts.
Why us?
- Old sealant always removed completely
- We’re fully insured
- Rated 4.9 stars on Google
- Tidy, careful work
Read what affects the cost or what customers say.
DIY versus a professional finish
A DIY attempt doesn’t rule out a professional job. We cut it out and start again, so just mention it when you contact us.
If you are set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it does not work out, we can still put it right.
What sealant work cannot fix
To be straight with you, there are a few things sealant won’t fix:
- Broken panes
- Rotten sashes, sills or window boxes (a joiner’s job)
- Masonry that needs repairing
If in doubt, drop us a line at info@mrmastic.co.uk and we’ll say what we think.
Where we work in Aywick
- Sash and case windows
- Period & listed homes
- Stone surrounds
- Tenement windows
- Brick reveals
- Timber door frames
