Fife · Scotland
Sand mastic for sash & case windows in Charlestown, Fife
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for Charlestown, backed by a one-year guarantee. Ask us for a quote.
- Cement or filler used on old window joints that has cracked
- Modern sealant on a period surround
- Open joints round the window box
What the job involves on each surface
Tenement and terrace windows
Rows of sash windows on tenements and terraces often need renewing together. We work on single windows or whole elevations.
Sash and case windows
The mastic round a sash window is on show, so a neat, even finish matters.
How we handle sand mastic in Charlestown
Sand mastic does not last for ever, leaving gaps round the window. Renewing it closes the gap and tidies the surround. We work on sash and case windows, stone surrounds and period & listed homes, and the jobs we see most are draughts and rain around sash boxes and patchy fillers round a sash window.
Across smaller places in Scotland, homes range from stone and harled cottages to newer houses, many standing in the open. Wind-driven rain finds any gap around a frame or sill.
Our work is backed for twelve months, in Charlestown and everywhere else we cover.
- Location
- Charlestown (KY11)
- Region
- Fife
- Cover
- One year on every job
- Quotes
- A clear price before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026
How the visit works
The work is kept neat and contained to the joints we’re treating, so you can get on with your day. The job normally takes anything from a few hours to a full day, depending on how many windows, and we explain the cure time before we leave. Outdoor work around Charlestown depends on the weather, as sealant needs a dry surface, so external jobs may need to move if the day turns wet. Work indoors isn’t affected.
- 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 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
- Clear items away from the joints we are working on
- Tell us about any previous sealing or DIY attempts
- Let us know about parking restrictions
Get a quote
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we will talk you through what we’d do. When it suits you, send an email to info@mrmastic.co.uk.
Advice
Nearby places to Charlestown
More services for Charlestown
Questions from Charlestown
Will you come out to Charlestown?
Yes, smaller places are covered as well as towns. We work across all of Scotland. Let us know about access, parking and anything unusual about getting there when you book.
Do you work for landlords with property near Dunfermline City station?
Yes, landlords and agents are among the people we work for. You can email us at info@mrmastic.co.uk with the details for a clear quote.
Will you leave a mess?
No. The area is protected while we work and cleaned up afterwards.
Can you quote for more than one area?
Yes, we can. More than one area can be quoted together.
What information do you need?
Where the job is, what the problem is and roughly how big it is. If you can, email a few photos.
Can you seal over the old sealant?
No. New silicone will not bond to old silicone, and anything trapped underneath, including mould and water, stays there. It all has to come out first.
How long does sand mastic take?
That depends on how much there is to do, but most jobs take a few hours per window, depending on the condition of the joints. We will tell you when we quote.
Is consent needed for window work on a listed home?
Yes, it’s worth checking. Ask your local planning authority whether consent is needed for listed or conservation-area properties.
Can I do it myself?
A DIY attempt does not rule out a professional job. We remove it and do the joint properly, so tell us about it when you ask for a quote.
The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.
Common problems we fix in Charlestown
Previous repairs in cement or silicone often trap water or crack away. They don’t move with the timber and we normally remove them.
It’s worth asking for a quote if you see:
- Window mastic to renew ahead of painting
- Draughts and rain around sash boxes
- Weathered mastic on the most exposed windows
- Gaps where the frame meets the masonry
Letting a property close to Dunfermline City station? Then older sash windows in a rental need their mastic kept sound to keep the weather out.
What your quote should include
- Whether all the old sealant comes out first
- Which colour the sealant will be
- What the cure time is
- The length of the guarantee
What affects the quote in Charlestown
We quote each job individually. These are the things that affect it:
- Whether the work is at height
- How much old sealant there is and how hard it is to remove
- The number of rooms or windows
- Which sealant suits the joint
There are no prices on our website, because each job is priced on what it involves. For a quick quote, please send an email to info@mrmastic.co.uk.
Asking for a quote
To help us quote quickly, let us know:
- How we’d reach the joints
- Where the property is
- A few pictures by email, if you can
- Roughly how big the job is
For a quote, drop us a line at info@mrmastic.co.uk with the location and a short description of the problem. We’ll give you a clear quote before any work starts.
Why deal with it now?
Silicone might seem the quicker option, but it can look wrong on a period surround. Sand mastic is the traditional material and blends with the stone or brick. In an older home around Charlestown, damp from a failed joint can get into timber and plaster.
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, plus any working-time requirements on site. Call for a quick quote and we will explain what it covers.
Why book with us
- 4.9 on Google from 180+ five-star reviews
- One-year guarantee on every job
- An ARBOMaster approved applicator
- Anti-fungal silicone where joints get wet
Frames and glazing around Charlestown
Charlestown is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on the mastic around older windows and doors, which can dry out and crack sooner where a building faces the weather. Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and sound outside sealant is part of that.
In the older streets around Limekilns Parish Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Charlestown is about 3 miles south-west of Dunfermline, in Fife. We carry out sand mastic for homeowners, landlords and businesses in Charlestown and nearby, as part of our work across Fife. Charlestown is one of 133 towns and villages in Fife we cover for sand mastic. Our Edinburgh page covers work nearby, about 13 miles away.
We work across KY11 for sand mastic. Whether your property is on East Harbour Road, Main Road and Rocks Road or a nearby road, our applicators can take on the job. Other places close to Charlestown include Crombie (1 mile north-west), Cairneyhill (2 miles north-west), Blackness (2 miles south), Torryburn (3 miles north-west) and Backmuir of Pitfirrane (3 miles north). Larger places within reach include Dunfermline (3 miles north-east), Kirkcaldy (14 miles north-east), Cowdenbeath (8 miles north-east), Dalgety Bay (6 miles east), Rosyth (3 miles east) and Abbeyview (4 miles north-east).
Landmarks near Charlestown
The nearest railway station is Dunfermline City station, about 2.9 miles north-east of the centre. Nearby you’ll also find Kingsgate Centre (3 miles north-east) and Andrew Carnegie Birthplace Memorial Museum (2.7 miles north-east). Open spaces near Charlestown include Black Loch.
When it is not the sealant
A few problems are outside what sealant work can do:
- Planning or listed building consent (your local planning authority decides)
- Sash cords, weights and draught-proofing of the sashes
- Timber that has rotted
Not sure which it is? You can send an email to info@mrmastic.co.uk and we’ll tell you honestly before you book.
Where we work in Charlestown
- Sash and case windows
- Period & listed homes
- Tenement windows
- Timber door frames
- Stone surrounds
- Brick reveals