Fife · Scotland
Sand Mastic in Kilrenny
Our applicators work in Kilrenny on traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old material cut out, joints cleaned and sealed neatly.
- Patchy fillers round a sash window
- A silicone bead on a sash window that spoils the look
- Wind and rain getting in round a sash window
How to look after the new joints
Once the sealant has cured, a few habits help it last:
- Inspect the joints round the windows every year or so
- Go gently near the mastic when preparing windows
- Ask a joiner to look at soft timber first
- Avoid patching sand mastic with silicone
Check the mastic when you check the paintwork. Catching cracks early keeps repairs small.
Fine cracks show the mastic is starting to fail. Renewing it then is simpler than waiting until it falls out.
How we handle sand mastic in Kilrenny
Across Kilrenny, we renew sand mastic around sash and case windows. Every joint is cleaned out and filled by hand for a neat, traditional finish. If you have cement or filler used on old window joints that has cracked and crumbling sand mastic round a window, we can help.
Older stone-built homes in Scotland often have sash and case or timber windows set in stone. The sealant has to suit the stone, which rules out acetoxy silicones that can mark or attack it.
Your job is guaranteed for a year, as with all our work.

- Location
- Kilrenny (KY10)
- Region
- Fife
- Cover
- One year on every job
- Quote
- A clear quote up front
- info@mrmastic.co.uk
- Updated
- 26 October 2026
What we cannot put right
Before you book, it’s worth knowing the limits too:
- Planning or listed building consent (your local planning authority decides)
- Broken panes
- Rotten sashes, sills or window boxes (a joiner’s job)
Not sure which it is? You can drop us a line at info@mrmastic.co.uk and we will tell you honestly.
What we seal
- Stone surrounds
- Sash and case windows
- Tenement windows
- Brick reveals
- Timber door frames
- Period & listed homes
Places near Kilrenny
Other services in Kilrenny
Kilrenny: your questions answered
Is sand mastic in a coastal place like Kilrenny any different?
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.
Is Kilrenny within the area you cover?
Yes, smaller places are covered as well as towns. We work across all of Scotland. Just mention lanes, gates or anything else about the route when you book.
Which products do you use?
We choose the sealant for the joint, not the other way round. Where it moves, gets wet or faces the weather makes a difference, and we will explain our choice.
Do you have insurance?
Yes, we are fully insured.
Is consent needed for window work on a listed home?
Your local planning authority is the one to ask. They’ll tell you if consent is needed.
Is sand mastic better than silicone for my windows?
Sand mastic normally suits period timber windows best. On modern frames, we’d normally use a flexible sealant, and we’ll explain why.
Do I need to be at home?
If the work is inside, we need someone to let us in. After that, you can carry on with your day.
Are you ARBOMaster approved?
Yes. Mr Mastic is an ARBOMaster approved applicator, and we’re fully insured.
How the visit works
Our applicators work methodically: protect, prepare, seal, tidy. For most jobs that takes anything from a few hours to a full day, depending on how many windows and we leave things clean and tidy. Outdoor work around Kilrenny depends on the weather, as sealant needs a dry surface, so an outdoor job can move if the forecast changes. Work indoors isn’t affected.
- Each surround is checked first.
- 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.
Before we arrive
- For business premises, tell us about site rules or sign-in
- Tell us about access, such as stairs, a lift or high-level joints
- Mention any leaks or damp you’ve noticed
Ask for a quote
For sand mastic in Kilrenny, send an email to info@mrmastic.co.uk. A short description of the job and where it is helps us quote, and we will agree the price before any work begins.
Related advice
Why deal with it now?
Not every filler suits an old window surround. Sand mastic matches what was there, which can matter on listed and conservation-area homes. Around Kilrenny, water from a failed joint in an older stone home can soak into timber and plaster.
A few things move the cost up or down: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether we need extra access for height. We take all of that into account in your quote.
Why Kilrenny clients choose us
- Anti-fungal sanitary silicone in wet areas
- We are fully insured
- Homes, businesses and hotels
- 180+ five-star Google reviews
Take a look at how sealant jobs are priced and customer reviews.
Kilrenny homes and the weather
Kilrenny is close to 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, and the joint between the box frame and the stone or render is traditionally pointed with sand mastic.
If you look after a building such as Waid Academy, larger buildings have plenty of frames, and the mastic around each one ages. In the older streets around Kilrenny Parish Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Kilrenny is about 18 miles south of Broughty Ferry, in Fife. Across the KY10 area, we cover sand mastic for homes and businesses. Across Fife, we cover 133 places, Kilrenny among them. There’s also a page for Dundee, roughly 20 miles from Kilrenny.
Jobs for sand mastic in KY10 works the same way as everywhere else we cover. That includes homes and businesses on Main Street, Common Road and Trades Street and the roads around them. We also cover the places around Kilrenny: Anstruther (1 mile south-west), Pittenweem (2 miles south-west), Crail (3 miles north-east), St Monance (4 miles south-west) and Arncroach (4 miles west). Larger places within reach include Leven (12 miles west), St Andrews (8 miles north-west), Cupar (14 miles north-west), Methil (13 miles west), Buckhaven (14 miles west) and Kennoway (14 miles west).
What’s near Kilrenny
Around Kilrenny, our work takes us to homes and buildings near Ship Tavern and the streets around them. A little further out are Scotland's Secret Bunker (2.5 miles north) and Dreel Castle (1 mile south-west).
Should I try it myself first?
Sealing over old silicone is the commonest DIY error. Silicone doesn’t 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.
How the job changes by surface
Period and listed homes
Many older homes were built with sand mastic round the windows. On listed buildings, check with your planning authority first.
Brick reveals
Gaps between frame and brick let in rain and draughts. New mastic seals the gap.
What affects the cost of sand mastic
The quote reflects the job in front of us. We look at:
- Mould in or behind the old joints
- The number of rooms or windows
- How much old sealant there is and how hard it is to remove
- Whether the work is at height
There are no prices on our website, because each job is priced on what it involves. For a quick quote, please email us at info@mrmastic.co.uk.
What we need to know
Photos help, but a description is a good start. Please mention:
- The address or postcode of the job
- If it’s domestic, commercial or a hotel
- Roughly how big the job is
- The problem you’ve noticed
Need a quote? Please drop us a line at info@mrmastic.co.uk with a few details. We’ll explain what we’d do and give you a clear price before any work starts.
