Shetland Islands · Scotland
Sand mastic for sash & case windows in Mail, Shetland Islands
Sand mastic for Mail, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Mastic dropping out of the joint
- Gaps where the frame meets the masonry
- Patchy fillers round a sash window
About our sand mastic in Mail
Fresh sand mastic forms a skin quite soon but full hardening takes longer. Traditionally, sand mastic is left unpainted and we’ll advise if you’re redecorating. If you have draughts and rain around sash boxes and crumbling sand mastic round a window, we can put it right, on stone surrounds, sash and case windows and period & listed homes alike.
Across smaller places in Scotland, homes range from stone and harled cottages to newer houses, many standing in the open. Exposed frames and sills take the full force of wind-driven rain, so the mastic there works hard.
All our work comes with a 12-month guarantee, wherever you are in the Shetland Islands.

- Location
- Mail (ZE2)
- Wider area
- Shetland Islands
- Guarantee
- A year, on every job
- Quotes
- A clear price before work begins
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Should I try it myself first?
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.
Mail homes and the weather
Mail 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. That is hard on the mastic around older windows and doors, especially on the side facing the sea. Work on the islands has to be planned around ferry crossings and the weather, so give us as much notice as you can.
For an older house near a landmark such as Mail Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Mail is about 9 miles south of Lerwick, in the Shetland Islands. Anywhere in ZE2, we can carry out sand mastic at your property. Mail is one of 63 places in the Shetland Islands we cover for sand mastic.
Here we cover the ZE2 postcode area for sand mastic. Other places close to Mail include Bremirehoull (1 mile north), Cunningsburgh (1 mile north), Aithsetter (2 miles north-east), Sandwick (2 miles south) and Hoswick (3 miles south). Larger places within reach include Lerwick (9 miles north), Sound (8 miles north) and Scalloway (7 miles north). For island and remote addresses, a little more planning is needed.
Near you in Mail
Open spaces near Mail include Loch of Fladdabister.
What we do, step by step
Our applicators work methodically: protection first, then preparation, sealing and a tidy-up. For most jobs that takes a few hours per window, depending on the condition of the joints and we leave things clean and tidy. Outside jobs in Mail 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.
- First we agree which joints need doing.
- Old mastic and any loose material are raked out.
- Deep gaps are packed so the mastic sits at the right depth.
- The sand mastic is mixed and pressed into the joint by hand.
- The surface is finished to suit the stone or brick.
Getting ready for the visit
- Mention any leaks or damp you’ve noticed
- Tell us about any previous sealing or DIY attempts
- For indoor joints, keep the area dry beforehand if you can
Get a quote
Need a quote? Please email us at info@mrmastic.co.uk with a few details. You will know what we plan to do, and what it will cost, before any work begins.
Advice
Your questions about sand mastic in Mail
Do you cover Mail for sand mastic?
Yes, Mail is within the area we cover. Our work covers the whole of Scotland. Just send an email to info@mrmastic.co.uk with a few details of the job.
Will you come out to Mail?
Yes. Mail 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. Just mention lanes, gates or anything else about the route when you book.
Do I have to be there?
If the work is inside, we need someone to let us in. Once we have agreed the job, you don’t need to watch us work.
Is it messy?
Very little: the area around the joints is protected first, and we clear up the old sealant and our materials before we leave.
What sealant do you use?
Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference, and we will explain our choice.
Do you work for landlords and businesses?
Yes, regularly. We can quote for several properties at once.
Can I choose the sealant colour?
Yes. Sealants come in white, clear, grey and other colours for many products, and we agree the colour with you before any work starts.
Is it worth trying it myself?
Some simple jobs can be done by a careful DIYer. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Why deal with it now?
A silicone bead can be quicker, but on period stone or brick it often looks out of place. Sand mastic is the traditional material and finishes neatly against the masonry. Around Mail, 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. We take all of that into account in your quote.
Why Mail customers choose us
- Old sealant always removed completely
- 4.9 on Google from 180+ five-star reviews
- Experience in homes, commercial sites and hotels
- More than 20 years in sealant work
Take a look at what affects the cost and what customers say.
What affects the quote in Mail
Some jobs are bigger than they look, and some smaller. What affects the quote:
- How many rooms, windows or areas are involved
- The size of the job
- The type of sealant required
- Any mould that needs treating
Leaving a failed joint normally makes the job bigger, not smaller, because water and mould keep working on it. If you are unsure, send an email to info@mrmastic.co.uk and we’ll give you an honest view and a quote.
What to tell us for a quote
What to tell us when you ask for a quote:
- The address or postcode of the job
- How many joints, rooms or windows are involved
- A few pictures by email, if you can
- Any previous sealing or DIY work
Every job is quoted individually, so start by telling us what you need. Just email us at info@mrmastic.co.uk with the details, and pictures are welcome.
What sealant work cannot fix
A few problems are outside what sealant work can do:
- Timber that has rotted
- Sashes that need overhauling
- Cracked or broken glass
Not sure which it is? You can email us at info@mrmastic.co.uk and we will tell you honestly.
What we seal
- Period & listed homes
- Timber door frames
- Brick reveals
- Sash and case windows
- Stone surrounds
- Tenement windows
Landlord and commercial work in Mail
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. Several properties can go on one quote.
Nearby places to Mail
More services for Mail
What we’re called out for in Mail
Water gets into small cracks in the mastic and loosens it further. Exposed elevations normally fail first.
Any of these means the joints need attention:
- Patchy fillers round a sash window
- Mastic dropping out of the joint
- Modern sealant on a period surround
- Mastic round period door frames that has failed
Around Mail, as everywhere, sand mastic is only as good as the preparation behind it.
What to look for in a quote
- When the joint can take water or movement
- What guarantee comes with the work
- Whether you can choose the colour
- Whether all the old sealant comes out first
