Scottish Borders · Scotland
Sand Mastic in Peel
Professional sand mastic in and around Peel, with every bit of old sealant taken out first.
- Patchy fillers round a sash window
- Gaps round a timber door in stone or brick
- Failed mastic on an exposed elevation
Sand mastic for homes and businesses in Peel
If your home is listed or in a conservation area, check with your local planning authority if consent is needed before window work. Sand mastic is often favoured as a like-for-like material. If you have wind and rain getting in round a sash window and tired mastic found when preparing windows for paint, we can help, whatever the surface.
Older stone-built homes in Scotland often have sash and case or timber windows set in stone. Those suit a traditional sand mastic or a neutral-cure sealant, not an acetoxy silicone that can attack some stone.
Our work is backed for twelve months, in Peel and everywhere else we cover.
- Place
- Peel (TD1)
- Wider area
- Scottish Borders
- Guarantee
- One year on every job
- Quotes
- A clear price before we start
- info@mrmastic.co.uk
- Last updated
- 26 October 2026

Windows and doors in Peel
Sash and case windows are common in older Scottish homes, and the joint between the box frame and the stone or render is traditionally pointed with sand mastic. Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and failed outside joints work against that.
Historic houses such as Peel House, about 0.1 miles south-west, show how far back building around Peel goes, and older homes nearby need a sealant that suits their walls.
Peel is about 4 miles west of Galashiels, in the Scottish Borders. Whether you’re in the middle of Peel or further out, sand mastic is available for homes and businesses alike. Peel is one of 89 towns and villages in the Scottish Borders we cover for sand mastic. You can also see our page for Edinburgh, roughly 26 miles from Peel.
Work in TD1 is quoted and booked the same way as anywhere else. We also cover Ashiestiel (1 mile north-west), Caddonfoot (1 mile east), Clovenfords (1 mile north-east), Broadmeadows (3 miles south-west) 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).
Around Peel
The nearest railway station is Galashiels station, about 3.8 miles east of the centre. A little further out are Old Gala House (3.6 miles east) and Peel Hill (4.8 miles south-east). Not far away are Haining Loch and Ashiesteel Hill.
Surface by surface
Brick reveals
An open joint at a brick reveal lets weather in. New mastic seals the gap.
Stone surrounds
Stone openings are rarely perfectly straight, so the gap is not the same all the way round. Sand mastic is shaped by hand to suit.
When it is not the sealant
In fairness, some problems need a different trade:
- Sash cords, weights and draught-proofing of the sashes
- Masonry that needs repairing
- 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.
What we seal
- Stone surrounds
- Sash and case windows
- Period & listed homes
- Brick reveals
- Timber door frames
- Tenement windows
Peel questions
Do you cover smaller places like Peel?
Yes, Peel is covered. Our work covers the whole of Scotland, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
I let a flat near Galashiels station. Can you help?
Yes, landlords and agents are among the people we work for. You can send an email to info@mrmastic.co.uk with the details for a clear quote.
Is sand mastic better than silicone for my windows?
Sand mastic usually suits period timber windows best. Modern frames normally suit a flexible sealant.
Do the sealants smell?
That depends on the sealant. Some smell for a while, some hardly at all.
What guarantee comes with the work?
Our one-year guarantee covers every job, sand mastic included.
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’ll explain our choice.
Do you hold any approvals?
Yes. Mr Mastic is an ARBOMaster approved applicator and we are fully insured too.
Is consent needed for window work on a listed home?
It’s best to ask your local planning authority first. Sand mastic is often favoured as like for like but the decision is theirs.
Also in Peel
Leave it or put it right?
If you are redecorating, renew the mastic first. Painting over failed mastic does not seal it, and the new mastic is traditionally left unpainted. In a place like Peel, small leaks are easy to put off, but water behind a failed seal does the most damage when nobody’s watching.
Instead of a standard rate, we look at what your job involves: how many joints, what’s in them now and how we reach them. You’ll know the price before we begin.
Why book with us
- Anti-fungal silicone where joints get wet
- We’re fully insured
- We leave the area clean and tidy
- Any old sealant cut out fully, not covered over
Read how sealant jobs are priced and customer reviews.
When to call us in Peel
Water gets into small cracks in the mastic and loosens it further. Windows facing the weather tend to go first.
If you can see any of these, it’s time to have the joints looked at:
- Cracked mastic round a front door frame
- Draughts and rain around sash boxes
- Mastic dropping out of the joint
- Window mastic to renew ahead of painting
If you let a flat or house near Galashiels station, older sash windows in a rental need their mastic kept sound to keep the weather out.
Before you book anyone
- How the colour is chosen
- How long to leave it before use
- What insurance they hold
- What the quote includes, VAT included or not
How the visit works
When we get to you, we check the joints match what you told us. If anything is different, we explain it before carrying on. Most jobs then take a few hours for a single window, longer for several. Outdoor work around Peel 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 is not too thick.
- New sand mastic is applied and shaped by hand.
- The finish is dressed neatly.
How to prepare
- Tell us if parking is tricky
- Clear items away from the joints we’re working on
- Keep pets and children clear of the area while we work
Getting a quote
It all starts with a short chat. Describe the problem, the location and the size of the job. When it suits you, drop us a line at info@mrmastic.co.uk.
Read more
How we quote for sand mastic
You will get a clear quote before work begins. It’s based on:
- When we can work, for business premises
- The product the joint needs
- The size of the job
- Whether old sealant or filler has to be cut out
Every job is a little different, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all make a difference, and we’ll explain the quote if you ask.
Asking for a quote
Before you ask for a quote, have a think about:
- The problem you’ve noticed
- Access, such as stairs, a lift or height
- Pictures of the joints, sent by email
- Where the job is, and your postcode
Every job is quoted individually, so the first step is telling us about yours. Simply send an email to info@mrmastic.co.uk and describe the job.
Can I do it myself?
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
