Midlothian · Scotland
Sand mastic for sash & case windows in D'Arcy, Midlothian
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homes and businesses in D'Arcy and across Midlothian. Fully insured, ARBOMaster approved and guaranteed for a year.
- Draughty sash windows at the surround
- Gaps where the frame meets the masonry
- Gaps round a timber door in stone or brick
How we handle sand mastic in D'Arcy
Fresh sand mastic forms a skin quite soon but full hardening takes longer. Traditional guidance is not to paint over it and we’ll advise if you’re redecorating. We work on stone surrounds, sash and case windows and brick reveals, and people most often call us about tired mastic found when preparing windows for paint and patchy fillers round a sash window.
Mastic can only go onto a dry joint, so outside work in D'Arcy depends on the weather. Let us know about access to every frame, including any upstairs.
We guarantee the work for a year. If something isn’t right with it in that time, tell us and we’ll put it right.
- Place
- D'Arcy (EH22)
- Region
- Midlothian
- Guarantee
- 12 months on all our work
- Quotes
- A clear quote up front
- info@mrmastic.co.uk
- Updated
- 26 October 2026
What sand mastic looks like in D'Arcy
Historic houses like Melville Castle (about 3.4 miles north-west) are a reminder that the area around D'Arcy has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic. Many older homes in Scotland have sash and case windows, often pointed into the wall with traditional sand mastic.
Historic houses such as Melville Castle, about 3.4 miles north-west, show how far back building around D'Arcy goes. For landlords with property near Newtongrange station, older sash windows in a rental need their mastic kept sound to keep the weather out. Schools such as Newbattle Community High School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.
D'Arcy is about 2 miles south-east of Dalkeith, in Midlothian. Our applicators cover sand mastic for householders, landlords and businesses in D'Arcy and the surrounding area, as part of our work across Midlothian. Across Midlothian, we cover 33 places, and D'Arcy is one of them. You can also see our page for Edinburgh, roughly 9 miles from D'Arcy.
Jobs for sand mastic in EH22 works the same way as everywhere else we cover. Whether your property is on Oak Place, Finlay Place and Larch Crescent or a nearby road, we can help. We also cover the places around D'Arcy: Mayfield (1 mile west), Edgehead (1 mile east), Easthouses (1 mile north-west), Newtongrange (1 mile west) and Gowkshill (2 miles south-west). Larger places within reach include Bonnyrigg (3 miles west), Penicuik (8 miles west), Loanhead (5 miles west), Shawfair (4 miles north-west), Danderhall (4 miles north-west) and Rosewell (5 miles west).
Around D'Arcy
The closest station to D'Arcy is Newtongrange station, about 1.8 miles west. A little further out are Oxenfoord Castle (1.8 miles east) and Cousland Smiddy (2.6 miles north-east).
Nearby places to D'Arcy
Also in D'Arcy
What happens if it’s left?
Silicone might seem the quicker option, but on period stone or brick it often looks out of place. Sand mastic suits the building and blends with the stone or brick. Around D'Arcy, water from a failed joint in an older stone home can soak into timber and plaster.
There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote and we will talk you through it.
Why choose Mr Mastic in D'Arcy
- Homes, businesses and hotels
- Approved under the ARBOMaster scheme
- Neat joints and a tidy finish
- Arbo and Everbuild products
Take a look at what affects the cost and customer reviews.
Should I try it myself first?
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
What affects the cost of sand mastic
Call for a quick quote. What matters most is:
- Mould in or behind the old joints
- The number of rooms or windows
- Whether the work is at height
- Whether old sealant or filler has to be cut out
The cost reflects the work involved, not guesswork. That is why we ask about the job first and agree the price before starting.
Helping us quote
When you contact us, these details help:
- What’s wrong with the joints now
- How many joints, rooms or windows are involved
- Any access issues, like height or stairs
- Where the property is
If you are in D'Arcy and need sand mastic, send an email to info@mrmastic.co.uk. Tell us what the problem is and where, and we’ll agree the price before any work begins.
Common questions in D'Arcy
Do you cover D'Arcy for sand mastic?
Yes, D'Arcy is within the area we cover. We work across all of Scotland. Just email us at info@mrmastic.co.uk with a few details of the job, and we will give you a clear quote.
Can you help a landlord with a rental near Newtongrange station?
Yes, landlords and agents are among the people we work for. You can drop us a line at info@mrmastic.co.uk with the details for a clear quote.
Can you quote for more than one area?
Yes. Tell us about everything you’d like done and you’ll get one quote.
What is sand mastic?
It’s the traditional filler for the joint round timber windows and doors. It’s made with sand and a linseed-oil-based binder.
What do you need from me for a quote?
Only a few details: the address or postcode, what’s wrong and any access issues. Then drop us a line at info@mrmastic.co.uk.
Do you do commercial work?
Yes. We work in offices, washrooms, hotels and other commercial premises. We can talk about working times when we quote.
How long does sand mastic take?
That depends on how much there is to do, but most jobs take a few hours for a single window, longer for several. We’ll tell you when we quote.
What guarantee comes with the work?
Every job comes with our 12-month guarantee, and we’re fully insured.
Surface by surface
Tenement and terrace windows
In shared buildings, the windows may be part of a wider repair so it’s worth checking responsibilities.
Sash and case windows
A sash window’s box frame sits in the masonry opening. The gap round it is pointed with sand mastic.
The process
There is not much for you to do on the day. Point us to the joints and we will get on with it. The work itself takes a few hours for a single window, longer for several, including the tidy-up. Outdoor work around D'Arcy depends on the weather, as sealant needs a dry surface, so external jobs may need to move if the day turns wet. Work indoors is not affected.
- Each surround is checked first.
- We rake out the old mastic and clean the joint.
- Large voids are packed out.
- We point the joint with sand mastic by hand.
- The finish is dressed neatly.
Getting ready for the visit
- Clear the area around the work
- Tell us if parking is tricky
- Let us know about stairs, lifts or work at height
Getting a quote
We quote each job on its own, so start by telling us what you need. Just send an email to info@mrmastic.co.uk with the details, and pictures are welcome.
Related advice
Honest limits
Some problems need a builder, plumber or other trade rather than us:
- Crumbling stone or brickwork round the window
- Sashes that need overhauling
- Timber that has rotted
If in doubt, send an email to info@mrmastic.co.uk and we will say what we think.
Joints and surfaces we work on
- Timber door frames
- Brick reveals
- Tenement windows
- Stone surrounds
- Period & listed homes
- Sash and case windows
Looking after it afterwards
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Keep sills and gutters clear so water drains away
- Check the mastic when you check the paintwork
- Avoid patching sand mastic with silicone
- Sort the mastic before the decorators arrive
Leave the new mastic alone while it firms up. It forms a skin fairly soon but needs longer to fully harden.
Small cracks are a sign the mastic is ageing. It’s easier to renew it before it drops out.