Aberdeenshire · Scotland
New Byth Sand Mastic
Problem with your window and door surrounds in New Byth? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Wind and rain getting in round a sash window
- Silicone on a period window that looks wrong
- Mastic worn away on windows facing the weather
About our sand mastic in New Byth
Sand mastic has long been used to fill the joint between timber frames and masonry. It’s a mix of sand and a linseed-oil-based binder, applied by hand. On older homes, it suits the building far better than silicone. We work on brick reveals, sash and case windows and period & listed homes, and people most often call us about old cement repairs round a window that have failed and silicone on a period window that looks wrong.
Across smaller places in Scotland, homes range from stone and harled cottages to newer houses, many standing in the open. Exposed frames and sills take the full force of wind-driven rain, so the mastic there works hard.
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.
- Place
- New Byth (AB53)
- Wider area
- Aberdeenshire
- Cover
- One year on every job
- Quote
- A clear price before we start
- info@mrmastic.co.uk
- Updated
- 26 October 2026
What affects the cost of sand mastic
Your quote is based on your job. We look at:
- The old material and how stubborn it is
- When we can work, for business premises
- How easy the joints are to reach
- The product the joint needs
What it costs depends on the amount of work, how much old material has to come out and access to the work. You’ll have a clear quote before any work starts, so you know where you stand.
Asking for a quote
Before you ask for a quote, have a think about:
- If it’s domestic, commercial or a hotel
- Where the property is
- If someone has resealed it before
- What the problem is, such as mould, gaps, leaks or cracking
It all starts with a short chat. Describe the problem, the location and the size of the job, and we’ll explain how we’d tackle it. Whenever you’re ready, email us at info@mrmastic.co.uk.
Different surfaces, different methods
Timber door frames
Period doors in stone or brick openings are often pointed with sand mastic. We renew it the same way as on windows.
Period and listed homes
Sand mastic is the like-for-like choice for many period homes. On listed buildings, check with your planning authority first.
How it works
Our applicators work methodically: protect, prepare, seal, tidy. For most jobs that takes a few hours per window, depending on the condition of the joints. Somewhere like New Byth 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.
- Old mastic and any loose material are raked out.
- 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.
How to prepare
- Where the joints are inside, avoid wetting them before we arrive
- Let us know if you’ve seen damp or leaks
- Keep pets and children clear of the area while we work
Getting a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is.
Read more
Keeping the joints in good condition
After the cure time, these simple habits help:
- Ask the planning authority about consent for listed or conservation-area homes
- Renew mastic before redecorating the windows
- Take care around the mastic when scraping paint
- Get any rot dealt with first
Look at the mastic when you look over the windows. Catching cracks early keeps repairs small.
Sound mastic protects the frame. Failed mastic lets water reach the timber and timber that stays wet can rot.
What we can’t put right
We’ll always be straight with you, so here’s what sealant cannot fix:
- Masonry that needs repairing
- Broken panes
- Sash cords, weights and draught-proofing of the sashes
Not sure which it is? You can email us at info@mrmastic.co.uk and we will tell you honestly before you book.
What we seal
- Timber door frames
- Period & listed homes
- Tenement windows
- Brick reveals
- Sash and case windows
- Stone surrounds
Windows and doors in New Byth
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. 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.
For an older house near a landmark such as New Byth Church, frames set in older brick or stone need a sealant that suits the wall as well as the frame. Around New Byth, as everywhere, sand mastic is only as good as the preparation behind it.
New Byth is about 13 miles south-west of Fraserburgh, in Aberdeenshire. New Byth gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Across Aberdeenshire, we cover 161 places, and New Byth is one of them. You can also see our page for Aberdeen, roughly 30 miles from New Byth.
All of AB53 is within our area for sand mastic, from the main roads to the quietest streets. Whether your property is on Main Street, Chapel Lane and Bridge Street or anywhere close by, we can help. Neighbouring places we cover for sand mastic include Garmond (1 mile south-west), Cuminestown (2 miles south-west), New Pitsligo (4 miles east), Turfhill (5 miles south-east) and New Deer (6 miles south-east). Within a short drive, we also cover Fraserburgh (13 miles north-east), Banff (11 miles north-west), Macduff (10 miles north-west), Mintlaw (11 miles east), Broadsea (13 miles north-east) and Rosehearty (11 miles north-east). Remote and island addresses need a little more planning, so please mention your location when you drop us a line at info@mrmastic.co.uk.
Around New Byth
Well-known places in the area include Craigston Castle (3.8 miles west). Open spaces near New Byth include Glasslaw Loch.
Towns and villages near New Byth
More services for New Byth
DIY versus a professional finish
If you’ve already had a go yourself, that is fine. We cut it out and start again, so tell us about it when you ask for a quote.
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
Landlords, agents and businesses in New Byth
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
In hotels, rooms out of use cost money, so we plan the work room by room. We’ve worked in hotels as well as homes and businesses.
New Byth questions
Do you cover New Byth for sand mastic?
Yes, New Byth is within the area we cover. We work across all of Scotland. Just send an email to info@mrmastic.co.uk with a few details of the job.
Do you cover smaller places like New Byth?
Yes, New Byth is covered. Our work covers the whole of Scotland, and smaller places are part of that. Longer journeys are simply planned in advance.
Where is Mr Mastic based?
We are based in Crawley, West Sussex, and we cover South East England, London and all of Scotland.
Is it worth trying it myself?
Sometimes. The key is preparation: remove all the old material and work on a clean, dry joint. We can always put it right if it fails.
Can new sealant go over the old?
No. New silicone will not 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.
What exactly is sand mastic?
It’s a mix of sand and a linseed-oil-based binder. It’s applied by hand and shaped to suit the surround.
Will the old sealant be removed?
Yes, always, and completely. New sealant won’t bond properly to old, so any old material comes out before anything new goes in.