Aberdeenshire · Scotland
Banchory Window Mastic
Professional window mastic in and around Banchory, with every bit of old sealant taken out first and a 12-month guarantee.
- Rushed sealant from a window installation
- Draughts coming in around windows and doors
- Old mastic that has gone black or come away
Keeping the joints in good condition
A little care helps the new joints last. Our advice:
- Check the mastic once a year
- Clean frames with a soft cloth and soapy water
- Paint up to the joint, not over it
- Do not use solvent cleaners on the joint
Keep the new mastic undisturbed while it cures, for as long as we advise. Keep jet washers away from the frames.
Water gets in quietly when mastic fails. Often the first sign is a damp patch inside or flaking paint on the reveal. Catching it early keeps the fix to a reseal.
Window mastic for homes and businesses in Banchory
Behind a thin line of old mastic there’s sometimes a deep void. Packing it solid with sealant gives a joint that can’t flex, so deep gaps get backing rod first. That way the new bead bonds to the frame and the wall only. Typical jobs include sealant in the wrong colour for the frame and gaps where the sill meets the wall, across patio & French doors, aluminium frames and timber windows & doors.
Older stone-built homes in Scotland often have sash and case or timber windows set in stone. Those suit a traditional sand mastic or a neutral-cure sealant, not an acetoxy silicone that can attack some stone.
Every job comes with our 12-month guarantee.
- Where
- Banchory (AB31)
- Wider area
- Aberdeenshire
- Guarantee
- A year, on every job
- Price
- A clear price before we start
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Landlords, agents and businesses in Banchory
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements.
We also work for property managers and facilities teams. We can quote a run of properties together, and we’re fully insured.
How the visit works
On the day, there’s very little for you to do. Show us the job and we’ll take it from there. The work itself takes a few hours for a handful of frames, longer for a whole house, including the tidy-up. Outside jobs in Banchory need a dry day, because sealant won’t bond to a wet joint, so external jobs may need to move if the day turns wet. Indoor work goes ahead whatever the weather.
- We check how each frame can be reached safely.
- Old, cracked mastic is removed completely, along with any loose debris.
- Frame and wall are cleaned and must be dry before sealing, and primed where the sealant calls for it.
- Backing rod fills deep voids and the sealant goes in on top.
- The joint is shaped to shed water and the area tidied.
Getting ready for the visit
- Let us know about earlier repairs to the joints
- On commercial sites, let us know about site rules
- Tell us about any water getting in
Getting a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints.
Read more
Nearby places to Banchory
Other services in Banchory
Your questions about window mastic in Banchory
Do you cover Banchory for window mastic?
Yes. We work across all of Scotland, and Banchory is part of that. Just drop us a line at info@mrmastic.co.uk with a few details of the job, and we will send you a clear quote.
Is Banchory within the area you cover?
Yes. Banchory is within the area we cover, which takes in towns, villages and rural addresses. Our work covers the whole of Scotland. Just mention lanes, gates or anything else about the route when you book.
Is the new sealant paintable?
Silicone generally will not take paint. If you plan to paint, tell us first and we can use a paintable sealant where it suits the joint.
Will the old sealant be removed?
Always. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.
Can you seal the gap between the frame and the plaster indoors?
Yes. Outside is the weather seal; inside closes the gap to the plaster. We do one or both.
How long should I leave it?
Many sealants skin over quickly but take longer to cure fully. We will tell you how long to leave the joint.
Do I have to be there?
If the work is inside, we need someone to let us in. After that, you can carry on with your day.
Can landlords and businesses book you?
Yes. As well as householders, we work for landlords, agents, businesses and hotels in Banchory.
Do you need window mastic in Banchory?
Sills take more water than any other part of a window, and the ends of the sill, where it meets the wall, are where it gets in. When that sealant fails, water gets into the wall or under the frame.
Most people get in touch after spotting something like this:
- Sealant in the wrong colour for the frame
- Gaps left after new windows were fitted
- Whistling draughts around closed windows
- Damp patches on the reveal after heavy rain
If you look after a building such as Banchory Academy, larger buildings have plenty of frames, and the mastic around each one ages.
What to look for in a quote
- How the surfaces are prepared before sealing
- What happens if the job turns out different
- What product goes in the joint
- Are they insured?
Why it’s worth doing now in Banchory
If you are painting or rendering, reseal at the same time. A clean new bead makes new paint or render look finished, and it’s easier while the walls are being worked on anyway. When the nearest tradesperson is a drive away, it’s tempting to leave a small leak, but water through a failed joint keeps working away until it’s fixed.
What you pay reflects the work, not a rough estimate. That is why we ask about the job first and give you a clear price before any work starts.
Why choose Mr Mastic in Banchory
- Fully insured
- Quality sealants from Arbo and Everbuild
- Rated 4.9 stars on Google
- Anti-fungal sanitary silicone in wet areas
Read what affects the cost and what customers say.
What window mastic looks like in Banchory
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. Sash and case windows are common in older Scottish homes, and the joint between the box frame and the stone or render is traditionally pointed with sand mastic.
If you live in an older home near Banchory Ternan East Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Banchory is about 15 miles south-west of Aberdeen, in Aberdeenshire. Banchory gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a 12-month guarantee. Banchory is one of 161 places in Aberdeenshire where we work. For nearby work, see our Aberdeen page.
Jobs for window mastic in AB31 is quoted and booked the same way as anywhere else. You’ll find streets such as Station Road, High Street and The Square, all of which we cover. With the A93 and A980 close by, Banchory is simple for us to get to. If you are just outside Banchory, we cover Inchmarlo (2 miles west), Crathes (3 miles east), Strachan (3 miles south-west), Crossroads (3 miles south-east) and Kirkton of Durris (4 miles east). Further out, we also cover Westhill (10 miles north-east), Stonehaven (12 miles south-east), Kemnay (12 miles north), Kintore (13 miles north-east), Aboyne (11 miles west) and Alford (15 miles north-west). As one of the bigger places in Aberdeenshire, Banchory has homes, rented property and businesses of every kind.
Local landmarks in Banchory
Locally, jobs take us to homes and businesses close to Burnett Arms Hotel, among other places. Nearby you will also find Crathes Castle (1.8 miles east) and Glen O'Dee Hospital (1.2 miles west). Open spaces near Banchory include Black Loch and Scolty Hill.
DIY sealant or a professional job?
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
How we quote for window mastic
We don’t publish a price list. The quote depends on:
- The amount of work
- Any working-time requirements on site
- Whether there’s mould to deal with
- Access and height
Leaving a failed joint generally makes the job bigger, not smaller, because water and mould keep working on it. If you’re not sure whether it needs doing, email us at info@mrmastic.co.uk and we will give you an honest view and a quote.
What to tell us for a quote
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- Roughly how big the job is
- The type of property
- The problem you’ve noticed
- Whether it has been sealed before
We don’t publish a price list, because every job is different. Instead, we give you a clear quote for your job. To get started, send an email to info@mrmastic.co.uk.