Dumfries and Galloway · Scotland
Kelton Hill Sand Mastic
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homes and businesses in Kelton Hill and across Dumfries and Galloway. Fully insured, ARBOMaster approved and guaranteed for a year.
- Patchy fillers round a sash window
- A silicone bead on a sash window that spoils the look
- Failed mastic on an exposed elevation
Do you need sand mastic in Kelton Hill?
Timber frames move with the seasons. The movement cracks the mastic little by little.
Look out for any of the following:
- Modern sealant on a period surround
- Draughts and rain around sash boxes
- Old sand mastic that has cracked, crumbled or fallen out
- Window mastic to renew ahead of painting
Around Kelton Hill, as everywhere, sand mastic is only as good as the preparation behind it.
Before booking anyone
- The length of the guarantee
- Whether the sealant suits the joint
- Whether all the old sealant comes out first
- Whether you can choose the colour
Sand mastic in Kelton Hill
We renew sand mastic around sash windows and doors set in stone or brick. The old mastic is raked out, the joint is prepared and new mastic is shaped by hand. If you are dealing with gaps where the frame meets the masonry and a silicone bead on a sash window that spoils the look, we can help, on sash and case windows, period & listed homes and tenement windows alike.
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.
Every job comes with a one-year guarantee, wherever you are in Dumfries and Galloway.
- Where
- Kelton Hill (DG7)
- Region
- Dumfries and Galloway
- Guarantee
- 12 months on all our work
- Quotes
- Quoted before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Common questions in Kelton Hill
Will you come out to Kelton Hill?
Yes. Kelton Hill is within the area we cover, which takes in towns, villages and rural addresses. Our work covers the whole of Scotland. Let us know about access, parking and anything unusual about getting there when you book.
Is Kelton Hill in your area for sand mastic?
Yes. Our work covers the whole of Scotland, and Kelton Hill is part of that. You can send an email to info@mrmastic.co.uk and let us know what needs doing, and we will give you a clear quote.
What is sand mastic?
A traditional pointing material made from sand and a linseed-oil-based binder for the joint between timber frames and masonry.
Do I have to be there?
For indoor joints, yes, someone needs to let us in. Once we’ve agreed the job, you do not need to watch us work.
Will you leave a mess?
Tidy work is part of the job. We protect what’s around the joints.
Is it possible to take out silicone and use sand mastic instead?
Yes. We remove the silicone and clean the joint, then point it with sand mastic.
Do you offer different sealant colours?
We help you choose a colour that suits, from white and clear to greys and other shades. The product needed can limit the range.
I’m a tenant. Can you help?
We’re happy to deal with the tenant, landlord or agent. Get your landlord’s agreement first.
Landlords, agents and businesses in Kelton Hill
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance.
Failed sealant is one of the commonest items on a check-out report. We can quote for more than one property at once.
Aftercare tips
Looking after new joints is easy:
- Sort the mastic before the decorators arrive
- Clear gutters so water does not pour onto the windows
- Check with your local planning authority if your home is listed
- Keep modern sealant off the mastic
Do not touch or press the mastic while it hardens. It skins over quickly, but takes longer to harden fully.
An open joint round the box lets weather through. Left, the gap tends to get bigger.
How the visit works
At the end, we look at the finished work together. The work normally takes anything from a few hours to a full day, depending on how many windows, depending on how much there is to do. In smaller Scottish places, parking is normally less of an issue than access and distance. Tell us how to find the property and how to reach the work.
- We check each window surround and the condition of the joint.
- The joint is raked out and cleaned.
- Large voids are packed out.
- New sand mastic is applied and shaped by hand.
- We finish the mastic to a tidy line.
Preparing for the visit
- Plan for the work area to be out of bounds to pets and children
- Clear the area around the work
- Mention any parking rules near the property
Getting a quote
If you are in Kelton Hill and need sand mastic, email us at info@mrmastic.co.uk. A short description of the job and where it is helps us quote, and you’ll get a clear quote before work begins.
Related advice
What sealant work can’t fix
We will always be straight with you, so here’s what new sealant will not do:
- Sash cords, weights and draught-proofing of the sashes
- Decisions on consent for listed homes
- Decayed frames that need repair
Not sure which it is? You can drop us a line at info@mrmastic.co.uk and we’ll tell you honestly before booking.
What we seal
- Sash and case windows
- Timber door frames
- Period & listed homes
- Stone surrounds
- Tenement windows
- Brick reveals
Why deal with it now?
Not every draught comes from the sashes themselves. Open mastic joints round the box can let air in and new mastic seals them. When the nearest tradesperson is a drive away, it’s tempting to leave a small leak, but water behind a failed seal does the most damage when nobody’s watching.
Combining jobs into one visit usually makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. We’ll give you a clear quote for the lot.
Why us?
- Approved under the ARBOMaster scheme
- Rated 4.9 stars on Google
- Full insurance on every job
- Sanitary silicone with an anti-fungal additive in wet areas
Take a look at what affects the cost or our reviews.
How we quote for sand mastic
There’s no set price list. The quote depends on:
- Which sealant suits the joint
- How easy the joints are to reach
- The old material and how stubborn it is
- How many rooms, windows or areas are involved
No two jobs are quite the same, so each one gets its own quote. Size, access and the product the joint needs all make a difference.
Asking for a quote
Photos help, but a description is a good start. Try to tell us:
- If someone has resealed it before
- The rough size of the job
- The address or postcode of the job
- Pictures of the joints, sent by email
We don’t publish a price list, because every job is different. Instead, your job gets its own clear quote. To arrange one, email us at info@mrmastic.co.uk.
Frames and glazing around Kelton Hill
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. Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and sound outside sealant is part of that.
Homes close to Parish Church and Burial-Ground include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Kelton Hill (Gaelic: Rhonehouse) is about 18 miles south-west of Dumfries, in Dumfries and Galloway. Homes, rented property, offices and hotels in Kelton Hill is covered for sand mastic, old or new, large or small. The work is guaranteed for a year. Kelton Hill is one of 138 places in Dumfries and Galloway where we work for sand mastic. There’s also a page for Glasgow, about 66 miles away.
Work in DG7 works the same way as everywhere else we cover. You’ll find streets such as Craig Road, School Road and Threave Road, all of which we cover. We also cover the places around Kelton Hill: Bridge of Dee (1 mile west), Gelston (2 miles east), Castle Douglas (2 miles north-east), Glenlochar (3 miles north) and Crossmichael (4 miles north). Within a short drive, we also cover Kirkcudbright (6 miles south-west), Dalbeattie (6 miles east) and Gatehouse of Fleet (9 miles west).
What’s near Kelton Hill
Other landmarks nearby include Gelston Castle (2.3 miles east) and Castle Douglas Art Gallery (2.3 miles north-east). Green spaces nearby include Barstobrick Hill and Carlingwark Loch.