Edinburgh · Scotland
Sand Mastic in Caiystane
We cover Caiystane for traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old sealant removed completely, joints prepared properly.
- Crumbling sand mastic round a window
- A silicone bead on a sash window that spoils the look
- Open joints round the window box
Questions from Caiystane
I let a flat near Slateford station. Can you help?
Yes, rental work is part of what we do. Just drop us a line at info@mrmastic.co.uk and tell us about the property, and we’ll send you a clear quote.
Do you cover Caiystane for sand mastic?
Yes. We work across all of Scotland, and Caiystane is part of that. Just email us at info@mrmastic.co.uk with a few details of the job.
Are you an approved applicator?
Yes. We are ARBOMaster approved, the scheme for applicators of Arbo sealants.
Are you insured?
Yes. We’re fully insured, and we can confirm the details when we quote.
Do I need to be at home?
For indoor joints, yes, someone needs to let us in. After that, you can carry on with your day.
How long does sand mastic take to go off?
It takes a while. It skins first and hardens fully later, and we will tell you what to expect.
What is sand mastic?
It’s sand mixed with a linseed-oil-based binder, used between timber frames and stone or brick.
Where are you based?
Mr Mastic is based in Crawley. We cover Caiystane and the rest of Edinburgh.
About our sand mastic in Caiystane
Sand mastic skins over fairly quickly but full hardening takes longer. Traditional guidance is not to paint over it and we will advise if you’re redecorating. Common call-outs are for patchy fillers round a sash window and old sand mastic that has cracked, crumbled or fallen out, on tenement windows, period & listed homes and brick reveals.
Older stone-built tenements in Scotland’s cities were built with sash and case windows, and plenty still have them. In Caiystane, as anywhere, the mastic between frame and wall is what stops draughts and rain getting in.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we will sort it.
- Place
- Caiystane (EH10, EH13)
- Region
- Edinburgh
- Guarantee
- One year on every job
- Price
- Quoted before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Keeping the joints in good condition
After the cure time, these simple habits help:
- Check the mastic when you check the paintwork
- Don’t run silicone over sand mastic
- Avoid heavy scraping on the mastic joint
- Sort the mastic before the decorators arrive
Avoid painting over the new mastic, as traditional guidance advises. Ask us before any decorating around it.
Good mastic helps keep the frame dry. Failed mastic lets water reach the timber and timber that stays wet can rot.
How the visit works
Our applicators work methodically: protection first, then preparation, sealing and a tidy-up. Typically it takes a few hours for a single window, longer for several. In a city area like Caiystane, parking may be by permit or pay-and-display, so tell us what’s nearby. If you are in a flat, let us know how we get in at the street door.
- We check the window surrounds and agree which joints need renewing.
- Old, loose mastic is raked out and the joint cleaned.
- We pack any deep gaps so the mastic sits at the right depth.
- Sand mastic is mixed and applied by hand, then shaped to the joint.
- The finish is dressed so it sits neatly against the stone or brick.
How to prepare
- Mention if the joints have been sealed before
- Let us know about parking restrictions
- Keep children and pets away from the work area
Getting a quote
Want a quote for sand mastic? Please email us at info@mrmastic.co.uk with a few details. We’ll explain what we’d do and give you a clear quote before we start.
Advice
Surface by surface
Brick reveals
Gaps between frame and brick let in rain and draughts. New mastic seals the gap.
Tenement and terrace windows
Windows above ground floor need the right access. Tell us the height and we’ll confirm what’s needed.
Windows and doors in Caiystane
Edinburgh’s Old and New Towns are a UNESCO World Heritage Site, and the Georgian New Town is known for its sash windows. If a home is listed or in a conservation area, it’s worth checking with the council before changing the look of windows or walls. Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and failed outside joints work against that.
If you look after a building such as Firrhill High School, larger buildings have plenty of frames, and the mastic around each one ages. Rented homes near Slateford station change hands often, and older sash windows in a rental need their mastic kept sound to keep the weather out.
Caiystane is about 3 miles south of Edinburgh, in Edinburgh. Jobs in Caiystane get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. We cover 175 towns and villages across Edinburgh.
Work in EH10 and EH13 is quoted and booked the same way as anywhere else. We cover properties on Oxgangs Road, Camus Avenue and Buckstone Road. Nearby, we also carry out sand mastic in Fairmilehead (1 mile south-east), Comiston (1 mile north), Oxgangs (1 mile north-west), Buckstone (1 mile north-east) and Colinton Mains (1 mile north-west). Further out, we also cover Edinburgh (3 miles north), Leith (6 miles north), Bonnington (5 miles north), Greenside (4 miles north), Broughton (4 miles north) and Bellevue (4 miles north).
Local landmarks in Caiystane
Caiystane’s nearest station is Slateford station, about 2 miles north-west. Well-known places in the area include Cockburn Geological Museum (2 miles north-east) and Merchiston Tower (2 miles north). For a walk, there’s The New Leaf Co-op and Craiglockhart Hill.
Landlords, agents and businesses in Caiystane
Mouldy or split sealant often shows up at the end of a tenancy. We can quote for more than one property at once.
From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Do you need sand mastic in Caiystane?
Scraping and sanding before painting can loosen old mastic. It’s often found when windows are being prepared for paint, which is a good time to renew it.
Common reasons people contact us are:
- Gaps round a timber door in stone or brick
- Weathered mastic on the most exposed windows
- Crumbling sand mastic round a window
- A silicone bead on a sash window that spoils the look
In the older streets around Fairmilehead Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Questions to ask before you book
- Is the old sealant removed completely?
- How long to leave it before use
- How the joint is cleaned and prepared
- How much experience the applicator has
Leave it or put it right?
Not every draught comes from the sashes themselves. Gaps between the frame and the wall can be just as bad, and renewing the mastic closes them. In a tenement flat in Caiystane, a failed seal is rarely just your problem: water can reach the flat below, and gaps in shared walls or fire-stopping affect the whole stair.
The cost depends on the size of the job, how much old material has to come out and access to the work. You will have a clear quote before any work starts, so you know where you stand.
Why choose Mr Mastic in Caiystane
- ARBOMaster approved applicator
- Full insurance on every job
- Domestic, commercial and hotel work
- Every job guaranteed for a year
What affects the quote in Caiystane
Every job gets its own quote. These are the things that affect it:
- Whether there’s mould to deal with
- The product the joint needs
- The number and length of the joints
- The old material and how stubborn it is
Rather than a set price list, we price the job in front of us: the amount of work, the old material and the access. The price is agreed before we begin.
What to tell us for a quote
Photos help, but a description is a good start. Please mention:
- Access, such as stairs, a lift or height
- Any previous sealing or DIY work
- The type of property
- Where the property is
There’s no standard price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To arrange one, email us at info@mrmastic.co.uk.