Scottish Borders · Scotland
Sand mastic for sash & case windows in Cardrona, Scottish Borders
Sand mastic in Cardrona from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Patchy fillers round a sash window
- Window mastic to renew ahead of painting
- Draughts and rain around sash boxes
Sand mastic for homes and businesses in Cardrona
Traditional burnt sand mastic that sits naturally against stone and brick. It’s a good fit for period properties, where modern sealant can look out of place. We’re often asked to deal with gaps where the frame meets the masonry and mastic round period door frames that has failed, across stone surrounds, brick reveals and period & listed homes.
Across smaller places in Scotland, homes range from stone and harled cottages to newer houses, many standing in the open. Exposed frames and sills take the full force of wind-driven rain.
You’re covered for a year from the day we finish. If there’s a problem with it, please email us at info@mrmastic.co.uk.
- Location
- Cardrona (EH45, EH44)
- Region
- Scottish Borders
- Guarantee
- One year on every job
- Quote
- A clear quote up front
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Work for landlords, hotels and businesses
In hotels, rooms out of use cost money, so the work can be planned room by room around your bookings where we can. We have worked in hotels as well as homes and businesses.
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
How the visit works
When we arrive, we start by going over the job with you, so there are no surprises. Surfaces next to the work are protected before any work begins. Most jobs take anything from a few hours to a full day, depending on how many windows. Around Cardrona, distance and access matter more than parking. Tell us how to find the property and how to reach the work, and the visit is planned around that.
- We check the window surrounds and agree which joints need renewing.
- Old, loose mastic is raked out and the joint cleaned.
- We pack any deep gaps so the mastic sits at the right depth.
- We mix the sand mastic and apply it by hand, shaping it to the joint.
- The mastic is finished to sit tidily against the stone or brick.
Before we arrive
- Let us know about stairs, lifts or work at height
- Clear items away from the joints we are working on
- Tell us about any water getting in
Ask for a quote
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 before giving you a price.
Related advice
Cardrona: your questions answered
Do you cover smaller places like Cardrona?
Yes. Cardrona is within the area we cover, which takes in towns, villages and rural addresses. We work across all of Scotland. Just mention lanes, gates or anything else about the route when you book.
Is there a guarantee on sand mastic in Cardrona?
Every job comes with our one-year guarantee, wherever it is. We’re also fully insured and ARBOMaster approved.
Is it possible to paint over sand mastic?
It’s traditionally left unpainted, as guidance on traditional windows advises. Talk to us before any painting near it.
How much does sand mastic cost in Cardrona?
Every job is different, so each one gets its own quote. For a quick quote, drop us a line at info@mrmastic.co.uk with a short description of the job.
Is consent needed for window work on a listed home?
Speak to your local planning authority before work starts. Like-for-like sand mastic is often the preferred finish but the decision is theirs.
What do you need from me for a quote?
Let us know what needs doing and where, plus pictures if you have them. If we need more, we’ll ask.
Will you leave a mess?
Not at all. The area is protected while we work and cleaned up afterwards.
Can I do it myself?
Sometimes. The key is preparation: remove all the old material and work on a clean, dry joint. We can always put it right if it fails.
Keeping the joints in good condition
Simple care keeps the joints in good condition. We recommend:
- Ask us before painting near the mastic
- Don’t run silicone over sand mastic
- Ask a joiner to look at soft timber first
- Find out about consent before window work on a listed home
Don’t run silicone over the new mastic. If you see a crack, ask us to take a look before trying a quick fix.
An open joint round the box lets weather through. The longer it’s left, the more the joint opens as more mastic falls out.
What happens if it’s left?
Cement-based fillers and modern sealants do not always suit a period surround. Sand mastic is the like-for-like choice, which can matter on listed and conservation-area homes. Exposed walls in smaller Scottish places take a lot of wind and rain, and damp in stone or harled walls takes a long time to dry once water gets behind a joint.
What it costs depends on the size of the job, how much old material has to come out and how easy the joints are to reach. You will have a clear quote before any work starts.
Why choose Mr Mastic in Cardrona
- Quality sealants from Arbo and Everbuild
- 20+ years of sealant experience
- ARBOMaster approved applicator
- We’re fully insured
Take a look at how sealant jobs are priced and our reviews.
How the job changes by surface
Sash and case windows
Most of our sand mastic work is on sash windows. We renew the mastic round each box.
Period and listed homes
Period homes look their best with traditional materials, and sand mastic is one of them.
Quotes for sand mastic in Cardrona
The price is agreed before any work begins. It’s based on:
- When we can work, for business premises
- The number and length of the joints
- How many areas need sealing
- How much old sealant there is and how hard it is to remove
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.
What to tell us for a quote
Photos help, but a description is a good start. Try to tell us:
- A few photos by email, if you can
- Whether it has been sealed before
- The address or postcode of the job
- What’s wrong with the joints now
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and email photos if that’s easy.
Sand mastic in Cardrona: local notes
Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and failed outside joints work against that. 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.
In and around Cardrona, as anywhere, good sand mastic starts with a clean, dry, properly prepared joint.
Cardrona is about 3 miles east of Peebles, in the Scottish Borders. Anywhere in EH45, we cover sand mastic for homes and businesses. Cardrona is one of 89 places in the Scottish Borders we cover. You can also see our page for Edinburgh, roughly 21 miles from Cardrona.
Postcode districts we cover here for sand mastic: EH45 and EH44. Whether your property is on Renwick Lane, The Green and Govan's Way or a nearby road, our applicators can take on the job. Nearby, we also carry out sand mastic in Cardrona Village (1 mile south-east), Innerleithen (2 miles south-east), Peebles (3 miles west), Walkerburn (4 miles east) and Eddleston (6 miles north-west). Larger places within reach include Galashiels (12 miles east), Selkirk (12 miles south-east), Melrose (15 miles east), West Linton (12 miles north-west), Lauder (15 miles east) and Langlee (13 miles east).
Around Cardrona
A little further out are Horsburgh Castle (1 mile west) and Hay Lodge Hospital (3.5 miles west). Green spaces nearby include Castle Hill.
Nearby places to Cardrona
What else we do in Cardrona
Signs you need sand mastic in Cardrona
Scraping and sanding before painting can loosen old mastic. It’s often found when windows are being prepared for paint.
People generally contact us after spotting something like this:
- Open joints round the window box
- Cracked mastic round a front door frame
- A silicone bead on a sash window that spoils the look
- Draughts and rain around sash boxes
For an older house near a landmark such as William Cree Memorial Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
What to look for in a quote
- Is VAT in the price?
- How long the guarantee is
- Whether they’re fully insured
- What happens if the job turns out different