Edinburgh · Scotland
Sand Mastic in Silverknowes
Sand mastic for Silverknowes, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Window mastic to renew ahead of painting
- Mastic dropping out of the joint
- Silicone on a period window that looks wrong
What happens on the day
You do not need to clear the whole room or building, only the area right around the joints. Everything nearby is protected, and the work takes a few hours for a single window, longer for several in most cases. For a tenement in Silverknowes, work inside your flat is between us and you, while shared parts may need the factor or neighbours to agree. Tell us which applies when you book.
- We check each window surround and the condition of the joint.
- The joint is raked out and cleaned.
- We fill deep gaps so the new mastic is not too thick.
- We point the joint with sand mastic by hand.
- We finish the mastic to a tidy line.
Before we arrive
- Let us know about parking restrictions
- On commercial sites, let us know about site rules
- Plan for the work area to be out of bounds to pets and children
How to get a quote
Want a quote for sand mastic? Please drop us a line at info@mrmastic.co.uk and tell us about the job. We’ll explain what we’d do and give you a clear quote before work begins.
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Sand mastic in Silverknowes, done properly
Across Silverknowes, we renew sand mastic around sash and case windows. Every joint is cleaned out and filled by hand for a neat, traditional finish. We are often asked to deal with old cement repairs round a window that have failed and gaps where the frame meets the masonry, across timber door frames, brick reveals and stone surrounds.
Silverknowes is in one of Scotland’s four big cities, where many older buildings are sandstone or granite. Natural stone around older windows needs a sealant that won’t mark or attack it, so acetoxy silicones, which can attack some stone, are best avoided.
Big or small, you get the same 12-month guarantee in Silverknowes and across Edinburgh.
- Location
- Silverknowes (EH4)
- Region
- Edinburgh
- Guarantee
- One year on every job
- Quotes
- Quoted before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Looking after it afterwards
Looking after new joints is easy, and it makes a real difference:
- Leave the new mastic unpainted
- Do not run silicone over sand mastic
- Clear gutters so water doesn’t pour onto the windows
- Take care around the mastic when scraping paint
Look at the mastic when you look over the windows. Small cracks are easier to deal with early.
Crumbling mastic lets rain into the joint. It can soak into the frame and the surrounding masonry, so renewing it early is worth it.
For landlords and businesses
If you manage several properties in or around Silverknowes, jobs at different addresses can go on one quote. Send us the addresses and the work at each.
Mouldy or split sealant often shows up at the end of a tenancy. We can quote for more than one property at once.
When it isn’t the sealant
Before booking, it’s worth knowing the limits:
- Crumbling stone or brickwork round the window
- Decayed frames that need repair
- Cracked or broken glass
If you’re not sure, just drop us a line at info@mrmastic.co.uk and we will give you a straight answer.
Where we work in Silverknowes
- Brick reveals
- Stone surrounds
- Tenement windows
- Period & listed homes
- Sash and case windows
- Timber door frames
DIY sealant or a professional job?
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.
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Why it’s worth doing now in Silverknowes
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. In a Scottish city tenement, failed sealant affects more than one flat: 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 hard the old material is to remove and access to the work. We give a clear quote before work begins, so you know where you stand.
What you get with us
- ARBOMaster approved applicator
- Rated 4.9 stars on Google
- We’re fully insured
- Experience in homes, commercial sites and hotels
Take a look at our cost guide or customer reviews.
Common questions in Silverknowes
Can you help a landlord with a rental near South Gyle station?
Yes, rental work is part of what we do. Just email us at info@mrmastic.co.uk and tell us about the property, and we’ll give you a clear quote.
Does the coastal weather in Silverknowes affect outside sealant?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. Choosing the right sealant for the frame and wall, laid at the right depth, helps it last.
Can I add another job to the visit?
Yes. More than one area can be quoted together.
Does someone need to be in?
That depends on where the joints are. Inside work needs someone to give us access.
When will the new mastic be hard?
It takes a while. It skins first and hardens fully later, and we will tell you what to expect.
What should I tell you?
A short description and the location. If we need more, we’ll ask.
Do you cover Silverknowes?
We do. Silverknowes is part of the area we cover.
Do you work for hotels and businesses?
Yes. We’ve worked for hotels, offices and other businesses, and we are fully insured.
Different surfaces, different methods
Brick reveals
Gaps between frame and brick let in rain and draughts. Renewing the mastic closes it.
Period and listed homes
Period homes look their best with traditional materials.
Sand mastic in Silverknowes: local notes
Silverknowes is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That is hard on the mastic around older windows and doors, especially on the side facing the sea. Many older homes in Scotland have sash and case windows, often pointed into the wall with traditional sand mastic.
In the older streets around St Columba's Parish Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. Rented homes near South Gyle station change hands often, and cracked sand mastic around sash windows lets in the draughts tenants complain about. Managing a site like Craigroyston Community High School? Then larger buildings have plenty of frames, and the mastic around each one ages.
Silverknowes is about 3 miles north-west of Edinburgh, in Edinburgh. For sand mastic in and around Silverknowes, it’s easy to get a quote: please send an email to info@mrmastic.co.uk. We are based in Crawley and cover Edinburgh, Silverknowes included. Our Edinburgh coverage runs to 175 places, and Silverknowes is one of them.
Postcode districts we cover here for sand mastic: EH4. You will find streets such as Heath Road, Main Street and Corbiehill Road. We also cover the places around Silverknowes: Davidson's Mains (1 mile south-west), Muirhouse (1 mile east), Craigcrook (1 mile south), Drylaw (1 mile south-east) and West Pilton (1 mile east). We also work in nearby towns such as Edinburgh (3 miles south-east), Leith (4 miles east), Bonnington (4 miles east), Greenside (3 miles east), Broughton (3 miles east) and Bellevue (3 miles east).
Near you in Silverknowes
The nearest railway station is South Gyle station, about 2.5 miles south-west of the centre. Well-known places in the area include Western General Hospital (1.5 miles east) and Murrayfield Experience (2.3 miles south-east). For a walk, there’s Corstorphine Hill and The New Leaf Co-op.