Scottish Borders · Scotland
Sand mastic for sash & case windows in Innerleithen, Scottish Borders
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for Innerleithen, backed by a 12-month guarantee. Call for a quick quote.
- Failed mastic on an exposed elevation
- Old cement repairs round a window that have failed
- Silicone on a period window that looks wrong
Sand mastic in Innerleithen, done properly
Traditional burnt sand mastic blends with stone and brick surrounds. It suits period and listed homes where a modern sealant bead would stand out. If you have modern sealant on a period surround and old sand mastic that has cracked, crumbled or fallen out, we can help.
Older stone-built homes in Scotland often have sash and case or timber windows set in stone. The sealant has to suit the stone, which rules out acetoxy silicones that can mark or attack it.
You get a 12-month guarantee, the same in Innerleithen as everywhere else we work.
- Place
- Innerleithen (EH44)
- Region
- Scottish Borders
- Cover
- One year on every job
- Price
- Quoted before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026

Work for landlords, hotels and businesses
Letting agents and landlords in Innerleithen can book us as well as homeowners. Sealant work between tenants is a simple way to keep a property in good order.
Failed sealant is one of the commonest items on a check-out report. We can quote for more than one property at once.
Nearby places to Innerleithen
Other services in Innerleithen
What sealant work cannot fix
To be straight with you, there are a few things sealant won’t fix:
- Sashes that rattle, stick or will not open
- Broken panes
- Rotten sashes, sills or window boxes (a joiner’s job)
If you’re not sure, just drop us a line at info@mrmastic.co.uk and we will give you a straight answer.
Surfaces we seal
- Tenement windows
- Brick reveals
- Timber door frames
- Stone surrounds
- Period & listed homes
- Sash and case windows
What affects the quote in Innerleithen
Every job gets its own quote. This is what makes a difference:
- When we can work, for business premises
- How much old sealant there is and how hard it is to remove
- Which sealant suits the joint
- The number of rooms or windows
No two jobs are quite the same, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all play a part.
Helping us quote
To help us quote quickly, let us know:
- The rough size of the job
- Whether it has been sealed before
- Pictures of the joints, sent by email
- Whether it’s a home or a business
Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we will talk you through the work and give you a clear price.
How to look after the new joints
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Sort the mastic before the decorators arrive
- Look over the window mastic once a year
- Get any rot dealt with first
- Leave the new mastic unpainted
Don’t run silicone over the new mastic. If you see a crack, ask us to take a look before trying a quick fix.
Small cracks are a sign the mastic is ageing. It’s easier to renew it before it drops out.
Can I do it myself?
What a professional job adds is preparation and the right 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.
If you’re set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it doesn’t work out, we can still put it right.
How the job changes by surface
Period and listed homes
Many older homes were built with sand mastic round the windows. On listed buildings, check with your planning authority first.
Brick reveals
Gaps between frame and brick let in rain and draughts. Renewing the mastic closes it.
How the visit works
On the day, there’s very little for you to do. Point us to the joints and we’ll get on with it. The work itself takes anything from a few hours to a full day, depending on how many windows, including the tidy-up. Somewhere like Innerleithen may be a longer drive, and the journey is planned ahead. Mention tracks, gates, ferries or anything else about the route.
- We check each window surround and the condition of the joint.
- The joint is raked out and cleaned.
- 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.
How to prepare
- Plan for the work area to be out of bounds to pets and children
- Move anything stored near the joints
- Mention any sign-in or site rules at work premises
Getting a quote
Getting a quote is simple: let us know the job and the location. Photos by email help us understand the job, and we’ll take it from there.
Advice
Frames and glazing around Innerleithen
Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and sound outside sealant is part of that. Many older homes in Scotland have sash and case windows, often pointed into the wall with traditional sand mastic.
In and around Innerleithen, as anywhere, good sand mastic starts with a clean, dry, properly prepared joint. In the older streets around Innerleithen Parish Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Innerleithen is about 10 miles west of Galashiels, in the Scottish Borders. Across the EH44 area, we cover sand mastic for homes and businesses. Our area takes in 89 places across the Scottish Borders, from the larger towns to small villages. Our Edinburgh page covers work nearby.
All of EH44 is covered for sand mastic. If you need sand mastic at a property on High Street, Pirn Road and Horsbrugh Terrace or a nearby road, we can help. With the A72 and B709 close by, Innerleithen is simple for us to get to for sand mastic. Other places close to Innerleithen include Walkerburn (2 miles east), Cardrona Village (2 miles north-west), Cardrona (2 miles north-west), Peebles (6 miles north-west) and Ashiestiel (6 miles east). We also work in nearby towns such as Galashiels (10 miles east), Selkirk (10 miles south-east), Melrose (13 miles east), West Linton (15 miles north-west), Earlston (15 miles east) and Lauder (14 miles north-east). As one of the bigger places in the Scottish Borders, Innerleithen has homes, rented property and businesses of every kind.
Local landmarks in Innerleithen
Other landmarks nearby include Horsburgh Castle (3.3 miles north-west) and Robert Smail's Printing Works (less than half a mile west). The countryside around Innerleithen includes Lee Pen.
Your questions about sand mastic in Innerleithen
What guarantee comes with sand mastic in Innerleithen?
All our work, in Innerleithen and everywhere else, comes with a 12-month guarantee. We are also fully insured and ARBOMaster approved.
Can you do sand mastic in Innerleithen?
Yes, Innerleithen is within the area we cover. We work across all of Scotland. Just drop us a line at info@mrmastic.co.uk with a few details of the job, and we’ll give you a clear quote.
Can you match the sealant colour?
We will suggest a colour to suit the surroundings, from white and clear to greys and other shades. The choice depends on the product the joint needs.
Which is right for my windows, sand mastic or modern sealant?
We’ll help you decide. Period homes often look best with sand mastic, and modern sealants suit newer frames.
I’m a tenant. Can you help?
Yes. Ask your landlord first, and we can send them the quote if that helps.
Are you an approved applicator?
Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.
Do you work for letting agents?
Yes, often. We can quote for several properties at once.
Can you work on commercial sites?
Yes. Hotels, offices and other businesses use us and we are fully insured.
