Scottish Borders · Scotland
Heiton Sand Mastic
We cover Heiton for traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old material cut out, joints cleaned and sealed neatly and a 12-month guarantee.
- Mastic round period door frames that has failed
- Cement or filler used on old window joints that has cracked
- Old sand mastic that has cracked, crumbled or fallen out
What happens on the day
Most of a good job is in the preparation, and we do not rush it. Joints are cleaned back and dried before anything new goes in. All told, the work takes a few hours for a single window, longer for several. Outdoor work around Heiton depends on the weather, as sealant needs a dry surface, so an outdoor job can move if the forecast changes. Work indoors is not affected.
- 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.
- We apply the mastic by hand and shape it.
- We dress the finish so it sits neatly against the masonry.
How to prepare
- On commercial sites, let us know about site rules
- Clear items away from the joints we’re working on
- Tell us about any previous sealing or DIY attempts
Get a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Tell us about the joints that need doing and we’ll talk you through the work.
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How we handle sand mastic in Heiton
Sand mastic does not last for ever, leaving gaps round the window. We rake it out and renew it and tidies the surround. Common call-outs are for tired mastic found when preparing windows for paint and mastic worn away on windows facing the weather, across stone surrounds, period & listed homes and tenement windows.
Across smaller places in Scotland, homes range from stone and harled cottages to newer houses, many standing in the open. Wind-driven rain finds any gap around a frame or sill, so the mastic there works hard.
There’s a 12-month guarantee on every job.
- Where
- Heiton (TD5)
- Wider area
- Scottish Borders
- Cover
- A year, on every job
- Quotes
- Quoted before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Heiton homes and the weather
Many older homes in Scotland have sash and case windows, and the joint between the box frame and the stone or render is traditionally pointed with 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.
Around Heiton, as everywhere, sand mastic is only as good as the preparation behind it. If you live in an older home near Roxburgh Parish Church, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Heiton is about 14 miles east of Galashiels, in the Scottish Borders. If you need sand mastic in Heiton, it’s easy to get a quote: please drop us a line at info@mrmastic.co.uk. We cover the Scottish Borders from our Crawley base, Heiton included. Across the Scottish Borders, we cover 89 places, Heiton among them. There’s also a page for Edinburgh, roughly 39 miles from Heiton.
Our applicators cover all of the TD5 postcode area for sand mastic. We also cover Roxburgh (1 mile west), Kelso (2 miles north-east), Sprouston (4 miles north-east), Nisbet (4 miles south-west) and Ednam (4 miles north). Further out, we also cover Galashiels (14 miles west), Selkirk (15 miles west), Jedburgh (7 miles south-west), Duns (15 miles north), Melrose (11 miles west) and Earlston (10 miles north-west).
Local landmarks in Heiton
Nearby you’ll also find Kelso Museum And Turret Gallery (2.2 miles north-east) and Kelso Hospital (2.5 miles north). For a walk, there’s Peniel Heugh and Wooden Loch.
Keeping the joints in good condition
How long the joints last depends on use and care. Here’s what we suggest:
- Inspect the joints round the windows every year or so
- Keep sills and gutters clear so water drains away
- Go gently near the mastic when preparing windows
- Keep modern sealant off the mastic
Avoid sealing over the mastic with silicone. If you see a crack, ask us to take a look before trying a quick fix.
Gaps round a sash box let in draughts and rain. Left, the gap tends to get bigger as more mastic falls out.
Heiton: your questions answered
Do you cover Heiton for sand mastic?
Yes. We work across all of Scotland, and Heiton is part of that. You can drop us a line at info@mrmastic.co.uk and tell us what needs doing.
Will you come out to Heiton?
Yes, smaller places are covered as well as towns. Our work covers the whole of Scotland. Just mention lanes, gates or anything else about the route when you book.
What does sand mastic cost?
Every job is different, so each one gets its own quote. For a quick quote, drop us a line at info@mrmastic.co.uk and let us know what needs doing and where.
Can you work on commercial sites?
Yes. We have worked for hotels, offices and other businesses and we’re fully insured.
Do I need permission for sand mastic on a listed building?
Your local planning authority is the one to ask. They’ll tell you if consent is needed for work to your windows.
I rent my home. Can I book you?
Yes, but check with your landlord or agent first. Landlords are often happy for the work to be arranged.
Can landlords and businesses book you?
Yes, regularly. We can quote for several properties at once.
Are you an approved applicator?
Yes. We are ARBOMaster approved, the scheme for applicators of Arbo sealants.
DIY versus a professional finish
A DIY attempt doesn’t rule out a professional job. We cut it out and start again.
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
What affects the cost of sand mastic
Jobs vary more than people expect. The main factors:
- Which sealant suits the joint
- Access and height
- The size of the job
- Whether there’s mould to deal with
We don’t show prices on the website, because the cost depends so much on the job itself. Call for a quick quote and we will talk you through it.
What to tell us for a quote
Photos by email are helpful but not essential. Try to tell us:
- The rough size of the job
- Photos by email, if that is easy
- Whether it has been sealed before
- Whether it’s a home or a business
Want a quote for sand mastic? Please send an email to info@mrmastic.co.uk and tell us about the job. We will explain what we’d do and give you a clear quote before any work starts.
Leave it or put it right?
Replacing sash windows is a big decision for a period home, and in listed buildings it may need consent. If the frames are sound, renewing the mastic deals with gaps and draughts at the surround. When the nearest tradesperson is a drive away, it’s tempting to leave a small leak, but water behind a failed seal does the most damage when nobody’s watching.
The cost depends on the amount of work, how much old material has to come out and access to the work. We give a clear quote before we start, so you know where you stand.
Why book with us
- Every job guaranteed for a year
- Over 20 years’ experience
- Domestic, commercial and hotel work
- 180+ five-star Google reviews
Read how sealant jobs are priced and our reviews.
Honest limits
Honest advice matters more to us than a booking, so here’s what new sealant will not do:
- Crumbling stone or brickwork round the window
- Sashes that rattle, stick or will not open
- Decisions on consent for listed homes
Not sure which it is? You can email us at info@mrmastic.co.uk and we’ll tell you honestly before booking.
Joints and surfaces we work on
- Stone surrounds
- Timber door frames
- Brick reveals
- Period & listed homes
- Tenement windows
- Sash and case windows
What else we do in Heiton
Landlord and commercial work in Heiton
From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance that we can handle for you.