Dumfries and Galloway · Scotland
Sand mastic for sash & case windows in Crossmichael, Dumfries and Galloway
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homes and businesses in Crossmichael and across Dumfries and Galloway. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Draughty sash windows at the surround
- A silicone bead on a sash window that spoils the look
- Cracked mastic round a front door frame
Sand mastic for homes and businesses in Crossmichael
For a listed home or one in a conservation area, ask your local planning authority if consent is needed before window work. Like-for-like sand mastic is often the preferred finish. If you’re dealing with mastic that needs renewing before redecorating and crumbling sand mastic round a window, we can put it right.
Mastic can only go onto a dry joint, so outside work in Crossmichael depends on the weather, and longer journeys are planned in advance. Tell us about access to all the windows and doors, upstairs included.
Each job carries a 12-month guarantee, large or small.
- Location
- Crossmichael (DG7)
- Region
- Dumfries and Galloway
- Cover
- 12 months on all our work
- Price
- Quoted before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
How the job changes by surface
Period and listed homes
Materials matter on listed and conservation-area homes. Sand mastic is often the preferred finish.
Brick reveals
An open joint at a brick reveal lets weather in. New mastic seals the gap.
Crossmichael questions
Do you cover smaller places like Crossmichael?
Yes, Crossmichael is covered. We work across all of Scotland, from towns to the smallest places. Longer journeys are simply planned in advance.
Is Crossmichael in your area for sand mastic?
Yes, Crossmichael 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 price.
Is sand mastic better than silicone for my windows?
Sand mastic usually suits period timber windows best. Modern frames normally suit a flexible sealant.
Is it worth trying it myself?
You can, for simple jobs. Preparation is everything: all the old sealant out, and a clean, dry joint. If it does not work out, we can redo it.
What guarantee comes with the work?
Our 12-month guarantee applies to all our work.
Are you an approved applicator?
Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.
How long does sand mastic take?
As a guide, most jobs take anything from a few hours to a full day, depending on how many windows. Larger jobs naturally take longer, and we will say how long yours will take.
Can I paint the new mastic?
It’s traditionally left unpainted, which is what traditional guidance recommends. Ask us before decorating.
What we do, step by step
Before we leave, we go over the finished joints with you and tell you how long to leave it. The visit itself usually takes a few hours for a single window, longer for several, depending on the amount of work. For a place like Crossmichael, longer drives are planned in advance. Mention tracks, gates, ferries or anything else about the route.
- Each surround is checked first.
- We rake out the old mastic and clean the joint.
- We fill deep gaps so the new mastic isn’t too thick.
- New sand mastic is applied and shaped by hand.
- We finish the mastic to a tidy line.
Preparing for the visit
- Where the joints are inside, avoid wetting them before we arrive
- Mention if the joints have been sealed before
- Tell us about access, such as stairs, a lift or high-level joints
Ask for a quote
Every job is quoted individually, so start by telling us what you need. Simply send an email to info@mrmastic.co.uk and describe the job, and pictures are welcome.
Advice
Frames and glazing around Crossmichael
Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and sound outside sealant is part of that. Sash and case windows are common in older Scottish homes, often pointed into the wall with traditional sand mastic.
Around Crossmichael, as everywhere, sand mastic is only as good as the preparation behind it. If you live in an older home near Balmaghie Parish Church And Churchyard, the joint between an old wall and a newer frame is normally the first place rain gets in.
Crossmichael is about 16 miles south-west of Dumfries, in Dumfries and Galloway. We carry out sand mastic for homes and businesses in Crossmichael and the surrounding area. Crossmichael is one of 138 places in Dumfries and Galloway where we work. We also work in Glasgow, around 62 miles away.
All of DG7 is covered for sand mastic, from the main roads to the quietest streets. We cover properties on Main Street, St Michael's Road and St Michael's Crescent. We also cover Glenlochar (1 mile south), Castle Douglas (3 miles south-east), Kirkpatrick Durham (4 miles north-east), Bridge of Dee (4 miles south) and Kelton Hill (4 miles south). Larger places within reach include Kirkcudbright (10 miles south), Dalbeattie (7 miles south-east) and Gatehouse of Fleet (10 miles south-west).
Around Crossmichael
Nearby you’ll also find Castle Douglas Art Gallery (3.3 miles south-east). For a walk, there’s Barstobrick Hill and Erncrogo Loch.
How we quote for sand mastic
We quote each job individually. This is what makes a difference:
- How much old sealant there is and how hard it is to remove
- Whether the work is at height
- The size of the job
- Whether there’s mould to deal with
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
What to tell us for a quote
What to tell us when you ask for a quote:
- Roughly how big the job is
- The problem you’ve noticed
- Whether it has been sealed before
- If it’s domestic, commercial or a hotel
For a quote, drop us a line at info@mrmastic.co.uk with the location and a short description of the problem. You will have a clear quote before any work starts.
Keeping the joints in good condition
Looking after new joints is easy, and it makes a real difference:
- Check the mastic when you check the paintwork
- Don’t run silicone over sand mastic
- Keep sills and gutters clear so water drains away
- Plan mastic work ahead of painting
Leave the new mastic alone while it firms up. It forms a skin fairly soon, but takes longer to harden fully.
Sound mastic protects the frame. Once it fails, water can sit against the timber and timber that stays wet can rot.
For landlords and businesses
We work for letting agents and landlords as well as homeowners. Sealant work between tenants is a simple way to keep a property in good order before the next move-in.
In hotels, rooms out of use cost money, so the work can be planned room by room. Hotel work is part of what we do, alongside homes and businesses.
Towns and villages near Crossmichael
Other services in Crossmichael
What we can’t put right
Honest advice matters more to us than a booking, so here’s what sealant can’t fix:
- Sashes that rattle, stick or will not open
- Cracked or broken glass
- Damaged stone surrounds
If you are not sure, just email us at info@mrmastic.co.uk and we will give you a straight answer before booking.
Where we work in Crossmichael
- Brick reveals
- Timber door frames
- Stone surrounds
- Period & listed homes
- Sash and case windows
- Tenement windows
Why act early in Crossmichael
Cement-based fillers and modern sealants don’t always suit a period surround. Sand mastic is the like-for-like choice, which can matter on listed and conservation-area homes. In a place like Crossmichael, small leaks are easy to put off, but water through a failed joint keeps working away until it’s fixed.
We don’t show prices on the website, because each job is priced on what it involves. Call for a quick quote.
Why us?
- We never seal over old sealant
- Experience in homes, commercial sites and hotels
- 20+ years of sealant experience
- Rated 4.9 stars on Google
Read our cost guide and what customers say.