Scottish Borders · Scotland
Ashiestiel Sand Mastic
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for Ashiestiel, backed by a one-year guarantee. Ask us for a quote.
- Mastic round period door frames that has failed
- A silicone bead on a sash window that spoils the look
- Mastic dropping out of the joint
How we handle sand mastic in Ashiestiel
Sand mastic skins over fairly quickly but full hardening takes longer. Traditionally, sand mastic is left unpainted, so ask us before you decorate. If you are dealing with mastic round period door frames that has failed and failed mastic on an exposed elevation, we can help, on tenement windows, brick reveals and timber door frames alike.
In and around a place like Ashiestiel, homes range from older stone-built cottages to newer houses. Exposed frames and sills take the full force of wind-driven rain.
A 12-month guarantee comes as standard, so you’re covered after we’ve gone.
- Where
- Ashiestiel (TD1)
- Region
- Scottish Borders
- Cover
- One year on every job
- Quote
- A clear price before we start
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Honest limits
Sealant isn’t the answer to every problem, and we will tell you before work begins. It won’t solve:
- Sashes that need overhauling
- Putty and glazing repairs
- Decisions on consent for listed homes
Not sure which it is? You can send an email to info@mrmastic.co.uk and we will tell you honestly.
Joints and surfaces we work on
- Timber door frames
- Brick reveals
- Period & listed homes
- Tenement windows
- Sash and case windows
- Stone surrounds
Signs you need sand mastic in Ashiestiel
Timber frames move with the seasons. That movement opens up the mastic joint little by little.
Look out for any of the following:
- Modern sealant on a period surround
- Mastic worn away on windows facing the weather
- Mastic dropping out of the joint
- Gaps where the frame meets the masonry
Historic houses such as Peel House, about 0.3 miles south-east, show how far back building around Ashiestiel goes.
Questions to ask before you book
- What preparation is included
- Whether you can choose the colour
- What the quote includes, VAT included or not
- What insurance they hold
For landlords and businesses
Letting agents and landlords in Ashiestiel can book us as well as householders. Resealing between tenancies is a simple way to keep a property in good order.
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance.
How the visit works
Good joint work is mostly preparation, so that is where we spend the time. Every joint is cleaned and dried before new material goes in. In total, it generally takes a few hours for a single window, longer for several. For a place like Ashiestiel, longer drives are planned in advance. Tell us about tracks, gates, a ferry crossing or anything unusual about getting there.
- We look at the surrounds with you and agree the joints to renew.
- Old mastic and any loose material are raked out.
- We pack any deep voids first.
- We apply the mastic by hand and shape it.
- We dress the finish so it sits neatly against the masonry.
Preparing for the visit
- Clear items away from the joints we are working on
- Mention if the joints have been sealed before
- Tell us if parking is tricky
Getting a quote
Call for a quick quote, or email us if that is easier. Describe what needs sealing and we’ll talk you through the work before giving you a price.
Advice
Questions from Ashiestiel
Do you work for landlords with property near Galashiels station?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. You can send an email to info@mrmastic.co.uk with the details for a clear quote.
Do you cover smaller places like Ashiestiel?
Yes. Ashiestiel is within the area we cover, which takes in towns, villages and rural addresses. We work across all of Scotland. Let us know about access, parking and anything unusual about getting there when you book.
Should I try DIY first?
It depends on the job. High-level, external movement and fire-rated joints are professional jobs.
Is it possible to paint over sand mastic?
Traditional guidance is not to paint over sand mastic. If you are redecorating the window, ask us first and we’ll talk you through it.
What exactly is sand mastic?
A traditional pointing material made from sand and a linseed-oil-based binder for the joint between timber frames and masonry.
Can old silicone round a sash window be swapped for sand mastic?
Yes, we do this often. All the old silicone is removed first so the mastic can sit properly.
Do you have insurance?
Yes. Mr Mastic is fully insured, with over 20 years’ experience in sealant work.
Will there be a smell?
Sometimes, a little. Any smell clears as the sealant cures.
How to look after the new joints
To keep the joints looking good and working properly:
- Do not paint over the new mastic
- Avoid heavy scraping on the mastic joint
- Look over the window mastic once a year
- Renew mastic before redecorating the windows
Avoid painting over the new mastic, which is the traditional advice. If you are redecorating, ask us first.
Crumbling mastic lets rain into the joint. It can soak into the frame and the surrounding masonry, so renewing it early is worth it.
Also near Ashiestiel
What else we do in Ashiestiel
What the job involves on each surface
Timber door frames
A neat sand mastic joint round a front door suits a period home.
Tenement and terrace windows
Tenements and terraces often have many sash windows with ageing mastic. We can do one window or several.
DIY sealant or a professional job?
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.
A DIY attempt does not rule out a professional job. We remove it and do the joint properly, so tell us about it when you ask for a quote.
Ashiestiel homes and the weather
Historic houses like Peel House (about 0.3 miles south-east) are a reminder that the area around Ashiestiel has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic. Many older homes in Scotland have sash and case windows, often pointed into the wall with traditional sand mastic.
Rented homes near Galashiels station change hands often, and cracked sand mastic around sash windows lets in the draughts tenants complain about.
Ashiestiel is about 4 miles west of Galashiels, in the Scottish Borders. Our applicators cover sand mastic for homeowners, landlords and businesses in Ashiestiel, as part of our work across the Scottish Borders. Ashiestiel is one of 89 places in the Scottish Borders where we work for sand mastic. There’s also a page for Edinburgh, about 26 miles away.
All of TD1 is covered for sand mastic, from the main roads to the quietest streets. Other places close to Ashiestiel include Peel (1 mile south-east), Caddonfoot (1 mile east), Clovenfords (1 mile north-east), Broadmeadows (3 miles south) and Yarrowford (3 miles south-west). We also work in nearby towns such as Hawick (13 miles south), Peebles (12 miles west), Selkirk (5 miles south-east), Wilton (13 miles south), Innerleithen (6 miles west) and Melrose (7 miles east).
What’s near Ashiestiel
For rail, the closest station is Galashiels station, about 4 miles east of the centre. Nearby you will also find Old Gala House (3.8 miles east). Not far away are Ashiesteel Hill.