Fife · Scotland
Sand mastic for sash & case windows in Gateside, Fife
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for Gateside, backed by a 12-month guarantee. Call for a quick quote.
- Gaps where the frame meets the masonry
- Mastic worn away on windows facing the weather
- Silicone on a period window that looks wrong
How the job changes by surface
Period and listed homes
A traditional finish suits a period property, and sand mastic is one of them.
Sash and case windows
A sash window’s box frame sits in the masonry opening. The gap round it is pointed with sand mastic.
Sand mastic for homes and businesses in Gateside
Our applicators renew the sand mastic around sash and case windows and doors in stone and brick. The old mastic is raked out, the joint is prepared and new mastic is shaped by hand. We work on timber door frames, period & listed homes and brick reveals, and the jobs we see most are silicone on a period window that looks wrong and mastic round period door frames that has failed.
Outdoor sealant needs a dry surface, so window work around Gateside is planned around the weather. Tell us about access to all the windows and doors, upstairs included.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Location
- Gateside (KY14)
- Wider area
- Fife
- Cover
- One year on every job
- Quotes
- Quoted before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026

Frames and glazing around Gateside
Sash and case windows are common in older Scottish homes, often pointed into the wall with traditional sand mastic. Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and sound outside sealant is part of that.
For an older house near a landmark such as Edenshead Church, the joint between an old wall and a newer frame is normally the first place rain gets in.
Gateside is about 8 miles north-west of Glenrothes, in Fife. Homes, rented property, offices and hotels in Gateside is covered for sand mastic. The work is guaranteed for a year. Our Fife coverage runs to 133 places, Gateside among them. You can also see our page for Dundee, roughly 19 miles from Gateside.
All of KY14 is covered for sand mastic, from the main roads to the quietest streets. We cover properties on Station Road, Bower Park and Main Road and the roads around them. Nearby, we also carry out sand mastic in Strathmiglo (2 miles east), Glenlomond (3 miles south), Duncrievie (3 miles west), Glenfarg (3 miles west) and Wester Balgedie (3 miles south). Further out, we also cover Dunfermline (14 miles south), Kirkcaldy (11 miles south-east), Glenrothes (8 miles south-east), Leven (13 miles east), Cowdenbeath (11 miles south) and Dysart (12 miles south-east).
Local landmarks in Gateside
Well-known places in the area include Michael Bruce Cottage Museum (3.7 miles south) and Balvaird Castle (1.7 miles north-west). Not far away are Cash Loch and West Lomond.
What we are called out for in Gateside
Shallow joints are a common cause. Mastic that is too thin cracks and drops out, which is why we pack deep voids first and get the depth right.
Signs it’s time to call us include:
- Patchy fillers round a sash window
- Gaps round a timber door in stone or brick
- Old sand mastic that has cracked, crumbled or fallen out
- A silicone bead on a sash window that spoils the look
In and around Gateside, as anywhere, good sand mastic starts with a clean, dry, properly prepared joint.
What to look for in a quote
- How long the guarantee is
- How the joint is cleaned and prepared
- Whether they’re fully insured
- How the colour is chosen
Leave it or put it right?
Filling over old, loose mastic doesn’t last. We remove the loose material first so the new work lasts. Exposed walls in smaller Scottish places take a lot of wind and rain, and once water gets behind a failed joint, damp in stone or harled walls is slow to dry out.
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. You’ll know the price before we begin.
Why us?
- Every job guaranteed for a year
- Arbo and Everbuild products
- Domestic, commercial and hotel work
- Over 20 years’ experience
See what affects the cost and what customers say.
Work for landlords, hotels and businesses
We also work for property managers and facilities teams. We can quote a run of properties together, and we are fully insured.
We regularly work with letting and managing agents. Tell us the address, the job and how access works.
How the visit works
Once we are on site, we check the joints match what you told us. If anything is different, we explain it before carrying on. Most jobs then take anything from a few hours to a full day, depending on how many windows. Around Gateside, distance and access matter more than parking. Let us know how to find you and how to reach the joints, and the visit is planned around that.
- We start by checking each surround and agreeing the joints to renew.
- 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
- Clear items away from the joints we’re working on
- Mention if the joints have been sealed before
- Mention any leaks or damp you’ve noticed
Getting a quote
To get 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.
Advice
What affects the cost of sand mastic
Every job gets its own quote. This is what makes a difference:
- How many areas need sealing
- How much old sealant there is and how hard it is to remove
- Which sealant suits the joint
- Any mould that needs treating
What it costs depends on the size of the job, how much old material has to come out and how easy the joints are to reach. You will have a clear quote before any work starts, so you know where you stand.
What to tell us for a quote
You do not need to know the technical terms. Just tell us:
- Whether it has been sealed before
- How many joints, rooms or windows are involved
- The problem you’ve noticed
- If it’s domestic, commercial or a hotel
We quote each job on its own. Simply send an email to info@mrmastic.co.uk and describe the job.
Towns and villages near Gateside
What else we do in Gateside
Should I try it myself first?
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.
If you’ve already had a go yourself, that’s fine. We cut it out and start again, so just mention it when you contact us.
Questions from Gateside
Do you cover smaller places like Gateside?
Yes, we do. Our work covers the whole of Scotland, from towns to the smallest places. Longer journeys are simply planned in advance.
Is sand mastic in Gateside guaranteed?
Every job comes with our 12-month guarantee, wherever it is. We’re fully insured, and an ARBOMaster approved applicator.
Is there any odour?
Possibly a little. It fades as the sealant cures.
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.
Can new sealant go over the old?
No. New silicone won’t bond to old silicone, and it traps any mould or water underneath. We remove it all first.
Do you have insurance?
Yes, we’re fully insured for every job we do.
What do you need from me for a quote?
The location, the problem and the rough size of the job. If you can, email a few pictures.
Do you offer different sealant colours?
Most of the time, yes. We’ll explain which colours are available.
