Stirling · Scotland
Sand Mastic in Kilmahog
Sand mastic across Kilmahog and nearby, with every bit of old sealant taken out first.
- Gaps between timber frames and stone or brick
- Gaps round a timber door in stone or brick
- Tired mastic found when preparing windows for paint
How we handle sand mastic in Kilmahog
Our applicators renew the sand mastic around sash and case windows and doors in stone and brick. Out comes the old, loose mastic, the joint is prepared and new mastic is shaped by hand. We’re often asked to deal with cracked mastic round a front door frame and old sand mastic that has cracked, crumbled or fallen out, on timber door frames, sash and case windows and brick reveals.
In and around a place like Kilmahog, homes range from older stone-built cottages to newer houses. Wind-driven rain finds any gap around a frame or sill, so the mastic there works hard.
Your job is guaranteed for a year, as with all our work.
- Where
- Kilmahog (FK17)
- Wider area
- Stirling
- Guarantee
- One year on every job
- Price
- A clear price before we start
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Landlords, agents and businesses in Kilmahog
Mouldy or split sealant often shows up at the end of a tenancy. We can quote for more than one property at once.
Whether it’s one flat or a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a 12-month guarantee.
Windows and doors in Kilmahog
Many older homes in Scotland have sash and case windows, often pointed into the wall with traditional sand mastic. Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and failed outside joints work against that.
Schools such as McLaren High School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s. For an older house near a landmark such as St Andrew's Episcopal Church, the joint between an old wall and a newer frame is generally the first place rain gets in.
Kilmahog is about 15 miles north-west of Stirling, in Stirling. Jobs in Kilmahog get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Kilmahog is one of 55 towns and villages in Stirling where we work for sand mastic. We also work in Glasgow, about 27 miles from Kilmahog.
Our applicators cover all of the FK17 postcode area for sand mastic. We also cover Callander (2 miles east), Brig o'Turk (5 miles west), Drumvaich (5 miles south-east), Strathyre (6 miles north-west) and Thornhill (6 miles south-east). Larger places within reach include Stirling (15 miles south-east), Dunblane (12 miles east), Raploch (14 miles south-east), Cornton (14 miles south-east), Torbrex (15 miles south-east) and Bridge of Allan (13 miles south-east).
Landmarks near Kilmahog
The countryside around Kilmahog includes Loch Venachar.
When something else is needed
Some problems need a builder, plumber or other trade rather than us:
- Damaged stone surrounds
- Decisions on consent for listed homes
- Sashes that rattle, stick or won’t open
Not sure which it is? You can drop us a line at info@mrmastic.co.uk and we will tell you honestly before you book.
Joints and surfaces we work on
- Timber door frames
- Period & listed homes
- Sash and case windows
- Stone surrounds
- Brick reveals
- Tenement windows
How to look after the new joints
After the cure time, these simple habits help:
- Inspect the joints round the windows every year or so
- Get any rot dealt with first
- Avoid heavy scraping on the mastic joint
- Leave the new mastic unpainted
Avoid sealing over the mastic with silicone. If anything cracks, get it looked at before trying a quick fix.
Crumbling mastic lets rain into the joint. That water can reach the timber frame and the wall so early renewal protects both.
DIY sealant or a professional job?
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 does not work out, we can still put it right.
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
What the job involves on each surface
Sash and case windows
The box of a sash and case window sits in the stone or brick opening. The gap round it is pointed with sand mastic.
Timber door frames
Doors face weather and wear, so their mastic can fail sooner. We rake it out and renew it.
Leave it or put it right?
Gaps round a sash window let in rain and draughts. Water can get to the frame and the masonry so renewing it early protects the window. Out of town in Scotland, exposed walls take a lot of weather, and damp in stone or harled walls takes a long time to dry once water gets behind a joint.
Combining jobs into one visit is generally more efficient than separate visits, so it’s worth mentioning everything you’d like done. We will give you a clear quote for the lot.
Why choose Mr Mastic in Kilmahog
- 12-month guarantee on every job
- Quality sealants from Arbo and Everbuild
- We leave the area clean and tidy
- We never seal over old sealant
Read what affects the cost and our reviews.
Kilmahog: your questions answered
Do you cover smaller places like Kilmahog?
Yes, we do. 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.
Can you do sand mastic in Kilmahog?
Yes. We work across all of Scotland, and Kilmahog is part of that. You can email us at info@mrmastic.co.uk and tell us what needs doing.
Can sand mastic be painted?
The usual advice is to leave sand mastic unpainted. Ask us before you decorate around it and we’ll advise.
Do you take out the old sealant first?
Yes. All of the old material is cut out and the joint cleaned before applying anything new.
Is it OK to seal over old sealant?
No, and we never do. It may look fine at first, but the new layer lifts away from the old one. Removing the old sealant completely is the only lasting way.
Do you work for letting agents?
Yes. Domestic, commercial and hotel work are all part of what we do.
Do you have insurance?
Yes, we’re fully insured.
Will there be a smell?
Sometimes, a little. Any smell clears as the sealant cures.
What happens on the day
There’s no need to move everything out, only the area right around the joints. Everything nearby is protected, and the job takes a few hours per window, depending on the condition of the joints for a typical job. In smaller Scottish places, parking is usually less of an issue than access and distance. Let us know how to find you and how to reach the joints, and the visit is planned around that.
- We start by checking each surround and agreeing the joints to renew.
- The loose and crumbling 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.
- We dress the surface so it sits neatly against the masonry.
How to prepare
- Tell us about access, such as stairs, a lift or high-level joints
- Clear the area around the work
- Let us know about earlier repairs to the joints
Getting a quote
We do not publish a price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To get started, email us at info@mrmastic.co.uk.