Scottish Borders · Scotland
Sand Mastic in Kirk Yetholm
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homes and businesses in Kirk Yetholm and across the Scottish Borders. Fully insured, ARBOMaster approved and guaranteed for a year.
- Patchy fillers round a sash window
- Draughts and rain around sash boxes
- Cracked mastic round a front door frame
Sand mastic in Kirk Yetholm, done properly
Silicone on a period window often looks wrong and isn’t always the right material. Sand mastic gives a finish that matches the age of the house and we can swap the silicone for it. Typical jobs include patchy fillers round a sash window and old sand mastic that has cracked, crumbled or fallen out, across stone surrounds, timber door frames and period & listed homes.
Many older Scottish homes still have timber windows set into stone walls. The sealant has to suit the stone, which rules out acetoxy silicones that can mark or attack it.
Each job carries a 12-month guarantee.
- Where
- Kirk Yetholm (TD5)
- Region
- Scottish Borders
- Guarantee
- 12 months on all our work
- Quote
- A clear quote up front
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Looking after it afterwards
So the new joints stay in good condition:
- Ask the planning authority about consent for listed or conservation-area homes
- Do not paint over the new mastic
- Sort the mastic before the decorators arrive
- Look over the window mastic once a year
Leave the new mastic alone while it firms up. It forms a skin fairly soon but needs longer to fully harden.
Gaps round a sash box let in draughts and rain. The longer it’s left, the more the joint opens as more mastic falls out.
Nearby places to Kirk Yetholm
What else we do in Kirk Yetholm
What affects the cost of sand mastic
Some jobs are bigger than they look, and some smaller. What affects the quote:
- Whether there’s mould to deal with
- When we can work, for business premises
- How much there is to do
- How many areas need sealing
Commercial jobs are quoted on the same basis as homes: how much there is to do, how we reach it and what it needs. Ask us for a quote and we’ll explain what it covers.
What to tell us for a quote
When you contact us, it’s useful to know:
- How we’d reach the joints
- If someone has resealed it before
- A few photos by email, if you can
- How many joints, rooms or windows are involved
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and email pictures if that is easy.
Landlord and commercial work in Kirk Yetholm
We also work for property managers and facilities teams. We can quote a run of properties together, and we’re fully insured for the work.
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. We can quote for more than one property at once.
Sand mastic in Kirk Yetholm: local notes
Many older homes in Scotland have sash and case windows, often pointed into the wall with traditional sand mastic. Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and sound outside sealant is part of that.
In the older streets around Kirk Yetholm Parish Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Kirk Yetholm is in the Scottish Borders. Anywhere in TD5, our applicators can take on sand mastic. Our area takes in 89 places across the Scottish Borders, large and small. Our Edinburgh page covers work nearby.
All of TD5 is within our area for sand mastic. Local streets include High Street, Main Street and The Yett. Other places close to Kirk Yetholm include Town Yetholm (1 mile west), Morebattle (4 miles south-west) and Sprouston (6 miles north-west). Larger places within reach include Kelso (7 miles north-west), Jedburgh (12 miles south-west), St Boswells (14 miles west) and Greycrook (14 miles west).
Around Kirk Yetholm
Locally, jobs take us to homes and businesses close to Border Hotel. The countryside around Kirk Yetholm includes Hoselaw Loch and Din Moss and Yetholm Loch.
Honest limits
New sealant cannot fix everything, and we’d rather say so up front. Sealant will not put right:
- Putty and glazing repairs
- Timber that has rotted
- Planning or listed building consent (your local planning authority decides)
If you are not sure, just send an email to info@mrmastic.co.uk and we will give you a straight answer before you book.
Joints and surfaces we work on
- Brick reveals
- Period & listed homes
- Sash and case windows
- Tenement windows
- Timber door frames
- Stone surrounds
How the visit works
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. Most jobs take a few hours per window, depending on the condition of the joints. Outdoor work around Kirk Yetholm 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.
- Each surround is checked first.
- We rake out the old mastic and clean the joint.
- We fill deep gaps so the new mastic isn’t too thick.
- We point the joint with sand mastic by hand.
- We finish the mastic to a tidy line.
Preparing for the visit
- Mention any leaks or damp you’ve noticed
- Tell us about any previous sealing or DIY attempts
- Plan for the work area to be out of bounds to pets and children
Get a quote
For sand mastic in Kirk Yetholm, 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 we start.
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What the job involves on each surface
Period and listed homes
Many older homes were built with sand mastic round the windows. If your home is listed, ask your local planning authority about consent.
Sash and case windows
Most of our sand mastic work is on sash windows. We renew the mastic round each box.
Common problems we fix in Kirk Yetholm
Timber swells and shrinks with the weather. That movement opens up the mastic joint little by little.
It’s worth asking for a quote if you see:
- Gaps round a timber door in stone or brick
- Silicone on a period window that looks wrong
- Crumbling sand mastic round a window
- Patchy fillers round a sash window
In and around Kirk Yetholm, as anywhere, good sand mastic starts with a clean, dry, properly prepared joint.
What your quote should include
- How much experience the applicator has
- What guarantee comes with the work
- What the quote includes, VAT included or not
- Whether you can choose the colour
Common questions in Kirk Yetholm
Is sand mastic in Kirk Yetholm guaranteed?
All our work, in Kirk Yetholm and everywhere else, comes with a 12-month guarantee. We are fully insured, and an ARBOMaster approved applicator.
Do you cover Kirk Yetholm for sand mastic?
Yes. We work across all of Scotland, and Kirk Yetholm is part of that. You can email us at info@mrmastic.co.uk and tell us what needs doing, and we’ll give you a clear quote.
Should I use sand mastic or silicone?
It depends on the window. Period windows in stone or brick usually suit sand mastic, while modern frames normally get a flexible sealant.
Can sand mastic be painted?
Sand mastic is normally left unpainted, which is what traditional guidance recommends. Talk to us before any painting near it.
How do I get a quote for sand mastic in Kirk Yetholm?
Every job is different, so each one gets its own quote. To get one, drop us a line at info@mrmastic.co.uk with a short description of the job.
Can you work on commercial sites?
Yes, regularly. Larger jobs can be planned room by room or area by area to suit the site.
Where do you work from?
We work from Crawley. We cover Kirk Yetholm and the rest of the Scottish Borders, along with the rest of our area.
Is it OK to seal over old sealant?
No. The old sealant always comes out first.