Stirling · Scotland
Sand mastic for sash & case windows in Doune, Stirling
Sand mastic for Doune, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Gaps between timber frames and stone or brick
- Draughty sash windows at the surround
- Window mastic to renew ahead of painting
Sand mastic in Doune
Sand mastic doesn’t last for ever, leaving gaps round the window. Renewing it closes the gap so the surround looks right again. We work on period & listed homes, brick reveals and timber door frames, and people most often call us about draughty sash windows at the surround and crumbling sand mastic round a window.
Many older Scottish homes still have timber windows set into stone walls. The sealant has to suit the stone, which rules out acetoxy silicones that can mark or attack it.
A one-year guarantee comes with the work, just as it does everywhere we cover.
- Where
- Doune (FK16)
- Region
- Stirling
- Cover
- One year on every job
- Quotes
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
For landlords and businesses
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance.
For anyone letting property in or around Doune, jobs at different addresses can go on one quote. Just tell us the addresses and what each one needs.
Why act early in Doune
Silicone might seem the quicker option, but it can look wrong on a period surround. Sand mastic suits the building and finishes neatly against the masonry. 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.
Instead of a standard rate, we look at what your job involves: the amount of work, the old material and the access. The price is agreed before we begin.
Why Doune clients choose us
- Experience in homes, commercial sites and hotels
- 180+ five-star Google reviews
- An ARBOMaster approved applicator
- Old sealant always removed completely
See what affects the cost and customer reviews.
Honest limits
New sealant can’t fix everything, and we’ll tell you before we start. Sealant won’t put right:
- Masonry that needs repairing
- Putty and glazing repairs
- Decayed frames that need repair
If you’re not sure, just email us at info@mrmastic.co.uk and we will give you a straight answer before you book.
Surfaces we seal
- Timber door frames
- Stone surrounds
- Tenement windows
- Brick reveals
- Period & listed homes
- Sash and case windows
Common problems we fix in Doune
Water gets into small cracks in the mastic and pushes it out. Windows facing the weather tend to go first.
People generally contact us after spotting one of these:
- Wind and rain getting in round a sash window
- Gaps between timber frames and stone or brick
- Failed mastic on an exposed elevation
- Old sand mastic that has cracked, crumbled or fallen out
Homes close to St Madoc's Episcopal Church include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Comparing quotes
- Is the old sealant removed completely?
- What the quote includes, VAT included or not
- How hidden problems are handled
- Whether you can choose the colour
Questions from Doune
Can you do sand mastic in Doune?
Yes. Our work covers the whole of Scotland, and Doune is part of that. Just send an email to info@mrmastic.co.uk with a few details of the job.
Do you cover smaller places like Doune?
Yes, smaller places are covered as well as towns. We work across all of Scotland. Just mention lanes, gates or anything else about the route when you book.
Is it OK to seal over old sealant?
No, it won’t last. It can look neat for a few weeks, but the new bead soon lifts. Removing the old sealant completely is the only lasting way.
Where is Mr Mastic based?
We’re based in Crawley, West Sussex, and we work across South East England, London and Scotland.
Will there be a smell?
Sometimes, a little. It fades as the sealant cures, and ventilation helps.
I’m a tenant. Can you help?
Yes. Ask your landlord first, and we can send them the quote if that helps.
What do you put in the joint?
Products from Arbo and Everbuild, among others, chosen to suit the joint. We’ll tell you what we are using and why.
How long does the job take?
A typical job takes a few hours per window, depending on the condition of the joints. We will confirm how long when we quote.
Also in Doune
The process
When we arrive, we look over the joints with you first, so you know exactly what we’re doing. We protect the surfaces around the joints before any work begins. The work normally takes a few hours per window, depending on the condition of the joints. Around Doune, distance and access matter more than parking. Let us know how to find you and how to reach the joints, and the visit is planned around that.
- First, we look at the surrounds with you and agree what needs doing.
- We rake out the old mastic and clean the joint.
- Deep voids are packed so the mastic is the right thickness.
- The mastic is mixed, pressed into the joint by hand and shaped.
- We dress the surface so it sits neatly against the masonry.
Before we arrive
- Mention if the joints have been sealed before
- Mention any leaks or damp you’ve noticed
- Try not to wet indoor joints just before the visit
How to get a quote
We quote each job on its own, so the first step is telling us about yours. Simply send an email to info@mrmastic.co.uk and describe the job and send pictures if you have them.
Read more
Aftercare tips
No joint lasts for ever, but care makes a real difference. A few tips:
- Ask us before painting near the mastic
- Ask the planning authority about consent for listed or conservation-area homes
- Check the mastic when you check the paintwork
- Avoid patching sand mastic with silicone
Do not run silicone over the new mastic. If you see a crack, ask us to take a look before trying a quick fix.
Renewing mastic before redecorating saves doing it twice. Painting over failed mastic hides the problem for a while.
Frames and glazing around Doune
The west of Scotland is wetter than the east, so there’s plenty of rain for the mastic around older windows and doors to keep out. 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.
For landlords with property near Dunblane station, cracked sand mastic around sash windows lets in the draughts tenants complain about.
Doune is about 7 miles north-west of Stirling, in Stirling. If you need sand mastic in Doune, please email us at info@mrmastic.co.uk for a quick quote. We are based in Crawley and cover Stirling, Doune included. Across Stirling, we cover 55 places, and Doune is one of them. For nearby work, see our Glasgow page, about 25 miles away.
Postcode districts we cover here for sand mastic: FK16. That includes homes and businesses on Main Street, George Street and Bank Street and the roads around them. Main roads around Doune include the A84 and A820. We also cover Deanston (1 mile west), Menteith (1 mile south), Blairdrummond (1 mile south), Dunblane (3 miles east) and Drumvaich (4 miles north-west). Within a short drive, we also cover Stirling (7 miles south-east), St. Ninians (7 miles south-east), Raploch (6 miles south-east), Cornton (6 miles south-east), Torbrex (7 miles south-east) and Bridge of Allan (5 miles south-east).
Landmarks near Doune
Around Doune, our work takes us to homes and buildings near Highland Hotel and the streets around them. The nearest railway station is Dunblane station, roughly 3.4 miles east of the centre. A little further out are Doune Motor Museum (2.3 miles north-west) and Doune Castle (under half a mile south-east). Not far away are Loch Mahaick and Hill of Row.
What affects the quote in Doune
For a quick quote, just ask. What matters most is:
- Whether there’s mould to deal with
- The product the joint needs
- Working hours on commercial sites
- How much there is to do
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, along with when we can work on site. Call for a quick quote and we’ll explain what it covers.
Helping us quote
Before you ask for a quote, have a think about:
- Where the job is, and your postcode
- Any previous sealing or DIY work
- A few photos by email, if you can
- The rough size of the job
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 explain what’s involved.