Aberdeenshire · Scotland
Sand mastic for sash & case windows in Balfour, Aberdeenshire
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for Balfour, backed by a 12-month guarantee. Call for a quick quote.
- Mastic worn away on windows facing the weather
- Draughty sash windows at the surround
- A silicone bead on a sash window that spoils the look
Looking after it afterwards
Simple care keeps the joints in good condition. Our advice:
- Plan mastic work ahead of painting
- Keep sills and gutters clear so water drains away
- Avoid patching sand mastic with silicone
- Find out about consent before window work on a listed home
Keep gutters and sills clear so water runs away from the surround. Constant wetting wears the mastic faster.
Gaps round a sash box let in draughts and rain. Left, the gap tends to get bigger as more mastic falls out.
Sand mastic in Balfour
Sand mastic is the traditional way to point the gap between a timber window frame and the stone or brick around it. It’s a mix of sand and a linseed-oil-based binder, applied by hand. On period homes, it looks right where silicone wouldn’t. We work on tenement windows, stone surrounds and brick reveals, and people most often call us about modern sealant on a period surround and mastic round period door frames that has failed.
Outdoor sealant needs a dry surface, so window work around Balfour is planned around the weather. Let us know about access to every frame, including any upstairs.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Location
- Balfour (AB31)
- Wider area
- Aberdeenshire
- Cover
- 12 months on all our work
- Quote
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
The process
The work is kept neat and contained to the joints we are treating, so you can get on with your day. Expect the work to take a few hours for a single window, longer for several, and we explain the cure time before we leave. Somewhere like Balfour may be a longer drive, and the journey is planned ahead. Mention tracks, gates, ferries or anything else about the route.
- We look at the surrounds with you and agree the joints to renew.
- We remove the old, loose mastic.
- We pack any deep voids first.
- We apply the mastic by hand and shape it.
- We dress the finish so it sits neatly against the masonry.
Before we arrive
- Mention any parking rules near the property
- Try not to wet indoor joints just before the visit
- Tell us about any water getting in
Get a quote
Asking for a quote is easy: let us know the job and the location. A few pictures by email make the job easier to understand.
Advice
How the job changes by surface
Period and listed homes
Period homes look their best with traditional materials.
Sash and case windows
Sash windows are where we do most sand mastic work. Each joint round the box is raked out and renewed.
What we are called out for in Balfour
Scraping and sanding before painting can loosen old mastic. It’s often found when windows are being prepared for paint.
Common reasons people contact us include:
- Patchy fillers round a sash window
- Gaps between timber frames and stone or brick
- Weathered mastic on the most exposed windows
- Mastic round period door frames that has failed
For an older house near a landmark such as St Comgall's Church, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
What your quote should include
- What the quote includes, VAT included or not
- What happens if they find a problem under the old sealant
- How the joint is cleaned and prepared
- Whether they seal over old material or remove it
Balfour questions
Will you come out to Balfour?
Yes. Balfour is within the area we cover, which takes in towns, villages and rural addresses. We work across all of Scotland. Let us know about access, parking and anything unusual about getting there when you book.
What guarantee comes with sand mastic in Balfour?
All our work, in Balfour and everywhere else, comes with a 12-month guarantee. We are also fully insured and ARBOMaster approved.
Do you work for landlords and businesses?
Yes. We work in homes, commercial premises and hotels.
What’s sand mastic made of?
Sand mastic is a traditional material for pointing round windows and doors. It combines sand with a linseed-oil-based binder.
Can old silicone round a sash window be swapped for sand mastic?
Yes. The silicone is cut out and the joint cleaned before the sand mastic goes in.
I rent my home. Can I book you?
We can work for tenants, landlords or agents. Get your landlord’s agreement first.
What do you need from me for a quote?
Only a few details: where it is, what you’ve noticed and how we reach it. Then drop us a line at info@mrmastic.co.uk.
Can you seal over the old sealant?
No, because it fails. We remove every bit of old sealant first, so the new joint bonds to clean surfaces.
Landlord and commercial work in Balfour
Hotels need rooms back in use, so we plan the work room by room around your bookings where we can. We’ve worked in hotels as well as homes and businesses.
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Resealing at the right time is simple maintenance.
Windows and doors in Balfour
Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and failed outside joints work against that. Sash and case windows are common in older Scottish homes, often pointed into the wall with traditional sand mastic.
Around Balfour, as everywhere, sand mastic is only as good as the preparation behind it.
Balfour is about 5 miles east of Banchory, in Aberdeenshire. Wherever you are in the AB31 postcode area, we cover sand mastic for homes and businesses. Across Aberdeenshire, we cover 161 places, and Balfour is one of them. Our Aberdeen page covers work nearby, about 11 miles away.
Every address in AB31 is within our area for sand mastic, from the main roads to the quietest streets. Close by, we work in Woodlands (1 mile south-east), Kirkton of Durris (1 mile west), Drumoak (2 miles north), Crathes (2 miles west) and Crossroads (3 miles south-west). Within a short drive, we also cover Westhill (7 miles north), Stonehaven (8 miles south-east), Banchory (5 miles west), Kemnay (13 miles north), Kintore (12 miles north) and Newtonhill (8 miles east).
What’s near Balfour
A little further out are Crathes Castle (3.2 miles west) and Durris Castle (within half a mile north-west). The countryside around Balfour includes Meikle Carewe Hill.
When it isn’t the sealant
We won’t take on work that won’t last, so here’s what sealant can’t put right:
- Whether work needs listed building consent
- Decayed frames that need repair
- Cracked or broken glass
If in doubt, email us at info@mrmastic.co.uk and we’ll say what we think before booking.
Surfaces we seal
- Timber door frames
- Period & listed homes
- Sash and case windows
- Stone surrounds
- Brick reveals
- Tenement windows
What affects the quote in Balfour
The price is agreed before any work begins. It takes into account:
- How much old sealant there is and how hard it is to remove
- How much there is to do
- Which sealant suits the joint
- How many areas need sealing
Leaving a failed joint normally makes the job bigger, not smaller, as water and mould keep getting in. If you’re not sure whether it needs doing, send an email to info@mrmastic.co.uk for an honest opinion and a quote.
What we need to know
To help us quote quickly, please include:
- Whether it’s a home or a business
- Roughly how big the job is
- Any previous sealing or DIY work
- What the problem is, such as mould, gaps, leaks or cracking
If you are in Balfour and need sand mastic, email us at info@mrmastic.co.uk. Tell us what the problem is and where, and we will agree the price before any work begins.