Scottish Borders · Scotland
Sand Mastic in Killochyett
Professional sand mastic in and around Killochyett, with every bit of old sealant taken out first and a 12-month guarantee.
- Draughty sash windows at the surround
- Modern sealant on a period surround
- Open joints round the window box
Common questions in Killochyett
Do you work for landlords with property near Stow station?
Yes, we work for letting agents and landlords. You can drop us a line at info@mrmastic.co.uk with the address and a few details, and we will give you a fixed price before we start.
Is Killochyett within the area you cover?
Yes. Killochyett 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.
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 beds in well.
How long will you be here?
Typically it takes anything from a few hours to a full day, depending on how many windows. Bigger jobs take longer.
Where do you work from?
Mr Mastic is based in Crawley. We cover Killochyett and the rest of the Scottish Borders, along with the rest of our area.
Do I need permission for sand mastic on a listed building?
Yes, it’s worth checking. Your local planning authority can say if consent is needed for listed or conservation-area properties.
Which is right for my windows, sand mastic or modern sealant?
For period timber windows in stone or brick, sand mastic is often the better fit. On modern frames, we’d normally use a flexible sealant, and we’ll explain why.
Can you work on commercial sites?
Yes, regularly. Larger jobs can be planned room by room or area by area.
Sand mastic in Killochyett
Fresh sand mastic forms a skin quite soon, but it takes longer to harden fully. Traditionally, sand mastic is left unpainted and we will advise if you’re redecorating. If you’re dealing with failed mastic on an exposed elevation and crumbling sand mastic round a window, we can help, on period & listed homes, brick reveals and timber door frames alike.
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.
Our work is backed for twelve months, in Killochyett and everywhere else we cover.
- Where
- Killochyett (TD1)
- Region
- Scottish Borders
- Cover
- 12 months on all our work
- Quotes
- A clear price before we start
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Keeping the joints in good condition
Aftercare is simple:
- Do not run silicone over sand mastic
- Ask a joiner to look at soft timber first
- Look over the window mastic once a year
- Check with your local planning authority if your home is listed
Don’t touch or press the mastic while it hardens. It skins over quickly, but takes longer to harden fully.
Crumbling mastic lets rain into the joint. It can soak into the frame and the surrounding masonry so early renewal protects both.
Frames and glazing around Killochyett
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 failed outside joints work against that.
In and around Killochyett, as anywhere, good sand mastic starts with a clean, dry, properly prepared joint. Rented homes near Stow station change hands often, and older sash windows in a rental need their mastic kept sound to keep the weather out.
Killochyett is about 6 miles north of Galashiels, in the Scottish Borders. Homes, rented property, offices and hotels in Killochyett can book us for sand mastic, old or new, large or small. Every job comes with our 12-month guarantee. Across the Scottish Borders, we cover 89 places, Killochyett among them. You can also see our page for Edinburgh, roughly 22 miles from Killochyett.
Every address in TD1 is within our area for sand mastic. We cover properties on Cockholm Crescent, Craigend Road and Galashiels Road. Other places close to Killochyett include Stow (1 mile south-east), Fountainhall (3 miles north-west), Lauder (5 miles east), Clovenfords (5 miles south) and Nether Blainslie (6 miles east). Further out, we also cover Galashiels (6 miles south), Peebles (13 miles west), Selkirk (10 miles south), Innerleithen (9 miles south-west), Melrose (9 miles south-east) and Earlston (8 miles south-east).
Landmarks near Killochyett
Killochyett has its own railway station: Stow station.
Why it’s worth doing now in Killochyett
Not every filler suits an old window surround. Sand mastic is the like-for-like choice, which can matter on listed and conservation-area homes. Out of town in Scotland, exposed walls take a lot of weather, and once water gets behind a failed joint, damp in stone or harled walls is slow to dry out.
A few things move the cost up or down: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether we need extra access for height. We take all of that into account in your quote.
Why book with us
- We never seal over old sealant
- Arbo and Everbuild products
- Anti-fungal sanitary silicone in wet areas
- Experience in homes, commercial sites and hotels
Read what affects the cost and what customers say.
How it works
Before we leave, we go over the finished joints with you and tell you how long to leave it. The visit itself generally takes a few hours per window, depending on the condition of the joints, depending on the amount of work. For a place like Killochyett, longer drives are planned in advance. Tell us about tracks, gates, a ferry crossing or anything unusual about getting there.
- Each surround is checked first.
- The joint is raked out and cleaned.
- Large voids are packed out.
- New sand mastic is applied and shaped by hand.
- The finish is dressed neatly.
How to prepare
- Let us know about earlier repairs to the joints
- Mention any parking rules near the property
- Plan for the work area to be out of bounds to pets and children
Getting a quote
Want a quote for sand mastic? Please email us at info@mrmastic.co.uk with a few details. We’ll explain what we’d do and give you a clear quote before we start.
Related advice
Landlords, agents and businesses in Killochyett
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance.
If you manage several properties in or around Killochyett, several properties can go on one quote. Send us the addresses and the work at each, and photos by email help.
Different surfaces, different methods
Tenement and terrace windows
Windows above ground floor need the right access. Tell us the height and we’ll confirm what’s needed.
Sash and case windows
Most of our sand mastic work is on sash windows. Each joint round the box is raked out and renewed.
Should I try it myself first?
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Quotes for sand mastic in Killochyett
There’s no set price list, because jobs vary so much. What we look at:
- The type of sealant required
- Access and height
- When we can work, for business premises
- How much there is to do
Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs, plus any working-time requirements on site. Ask us for a quote and we will go through it with you.
Asking for a quote
What to tell us when you ask for a quote:
- If someone has resealed it before
- The problem you’ve noticed
- If it’s domestic, commercial or a hotel
- Any access issues, like height or stairs
If you’re in Killochyett and need sand mastic, email us at info@mrmastic.co.uk. Tell us what the problem is and where, and you will get a clear quote before any work starts.