Edinburgh · Scotland
Sand Mastic in Boswall
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homeowners, landlords and businesses in Boswall. Fully insured, ARBOMaster approved and guaranteed for a year.
- Mastic round period door frames that has failed
- Tired mastic found when preparing windows for paint
- Old sand mastic that has cracked, crumbled or fallen out
Boswall: your questions answered
Do you work for landlords with property near Edinburgh Waverley station?
Yes, we work for landlords and letting agents. Just send an email to info@mrmastic.co.uk and tell us about the property, and we will send you a clear quote.
Does living near the coast affect sand mastic in Boswall?
Coastal homes put outside sealant through more weather than inland ones, so the choice of sealant and the preparation matter even more. It’s worth checking the walls that face the sea first.
Will the old sealant be removed?
Always. Sealing over old sealant is the main reason resealing fails early, and it’s something we never do.
Should I try DIY first?
Some simple jobs can be done by a careful DIYer. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Do you offer different sealant colours?
We’ll suggest a colour to suit the surroundings, from white and clear to greys and other shades. The product needed can limit the range.
Can you seal over the old sealant?
No. We remove every bit of old sealant first, so the new joint bonds to clean surfaces.
Will there be a smell?
Some sealants have a smell while they cure. Opening a window helps.
Can you replace silicone on a period window with sand mastic?
Generally, yes. Once the silicone is out and the joint prepared, sand mastic is applied by hand.
About our sand mastic in Boswall
Sand mastic suits most period window surrounds. On modern frames we’d normally use a flexible sealant and we will explain which is best for yours. We work on stone surrounds, tenement windows and sash and case windows, and people most often call us about gaps round a timber door in stone or brick and mastic worn away on windows facing the weather.
Boswall 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 will not mark or attack it, which generally means a neutral-cure product or a traditional sand mastic rather than an acetoxy silicone.
Your job is guaranteed for a year, as with all our work.
- Where
- Boswall (EH5, EH3, EH4)
- Wider area
- Edinburgh
- Guarantee
- One year on every job
- Quote
- A clear quote up front
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Nearby places to Boswall
What else we do in Boswall
How it works
There’s no need to move everything out before we come, only the area right around the joints. Everything nearby is protected, and the job takes anything from a few hours to a full day, depending on how many windows for a typical job. In a Scottish city, a lot of jobs are in tenement flats, up a common stair from a shared close. For a job in Boswall, tell us the floor, how the door entry system works and where we can park nearby.
- First, we look at the surrounds with you and agree what needs doing.
- Old, loose mastic is raked out and the joint cleaned.
- Deep voids are packed so the mastic is the right thickness.
- We mix the sand mastic and apply it by hand, shaping it to the joint.
- The mastic is finished to sit tidily against the stone or brick.
Before we arrive
- Let us know if you’ve seen damp or leaks
- Keep children and pets away from the work area
- For indoor joints, keep the area dry beforehand if you can
Ask for a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and add photos by email if you can.
Read more
Leave it or put it right?
Not every filler suits an old window surround. Sand mastic matches what was there and that can be important for listed homes. In a tenement flat in Boswall, a failed seal is rarely just your problem: a leak can come through the ceiling below, and gaps in shared walls or fire-rated joints matter to every flat.
The cost reflects the work involved, not a rough estimate. That is why we ask a few questions first.
Why choose Mr Mastic in Boswall
- 180+ five-star Google reviews
- A 12-month guarantee on all work
- Homes, businesses and hotels
- We leave the area clean and tidy
See our cost guide or customer reviews.
Common problems we fix in Boswall
Paint, silicone or cement used over old mastic causes problems. They do not suit the joint, and they normally need raking out.
Look out for any of the following:
- Gaps round a timber door in stone or brick
- Failed mastic on an exposed elevation
- Old sand mastic that has cracked, crumbled or fallen out
- Draughts and rain around sash boxes
Homes close to Granton Congregational Church include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Before booking anyone
- Is VAT in the price?
- How long the guarantee is
- How much experience the applicator has
- How the surfaces are prepared before sealing
Frames and glazing around Boswall
Boswall is within about 1 mile of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. 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.
If you let a flat or house near Edinburgh Waverley station, older sash windows in a rental need their mastic kept sound to keep the weather out. Schools such as Broughton High School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.
Boswall is about 1 mile north-west of Bellevue, in Edinburgh. Whether you’re in the middle of Boswall or further out, we cover sand mastic for every kind of property, from flats and houses to offices and hotels. 175 places in Edinburgh are on our list, large and small.
Every address in EH5, EH3 and EH4 is covered for sand mastic. Sand mastic is available to properties on Ferry Road, Wardie Road and Granton Road and the roads around them. With the A903 close by, Boswall is easy for our applicators to reach for sand mastic. We also cover Granton (1 mile west), Goldenacre (1 mile south-east), Inverleith (1 mile south), Trinity (1 mile east) and Pilton (1 mile west). Further out, we also cover Sciennes (3 miles south-east), Merchiston (3 miles south), Newington (3 miles south-east), Queensferry (7 miles west), Burgh Muir (3 miles south-east) and Lochend (3 miles south-east).
Local landmarks in Boswall
We work in homes and buildings around Starbank Park, Trinity Academy and Old Chain Pier pub and the streets around them. For rail, the closest station is Edinburgh Waverley station, roughly 1.9 miles south-east of the centre. Other landmarks nearby include Newhaven Heritage Museum (1 mile east) and Western General Hospital (1 mile south-west). Open spaces near Boswall include Dunsapie Loch and Corstorphine Hill.
What affects the cost of sand mastic
For a quick quote, just ask. The main things that affect it are:
- The product the joint needs
- Mould in or behind the old joints
- Whether old sealant or filler has to be cut out
- When we can work, for business premises
Instead of a standard rate, we look at what your job involves: how many joints, what’s in them now and how we reach them. You’ll know the price before we begin.
What we need to know
To help us quote quickly, please include:
- Whether it has been sealed before
- What the problem is, such as mould, gaps, leaks or cracking
- Roughly how big the job is
- Any access issues, like height or stairs
For a quote, drop us a line at info@mrmastic.co.uk with the location and a short description of the problem. You’ll have a clear quote before any work starts.
Should I try it myself first?
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.
If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly, so tell us about it when you ask for a quote.
Landlord and commercial work in Boswall
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
Letting agents and landlords in Boswall can book us as well as householders. Resealing between tenancies is a simple way to keep a property in good order before the next move-in.
What the job involves on each surface
Stone surrounds
Old stone surrounds are often uneven, so the joint varies in width. We shape it by hand to follow the stone.
Brick reveals
Sand mastic is also used where timber frames meet brick. It gives a traditional finish.