Aberdeenshire · Scotland
Sand mastic for sash & case windows in Portsoy, Aberdeenshire
We cover Portsoy for traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old material cut out, joints cleaned and sealed neatly.
- Mastic that needs renewing before redecorating
- Old cement repairs round a window that have failed
- Modern sealant on a period surround
Should I try it myself first?
If you’ve already had a go yourself, that is fine. We cut it out and start again.
If you’re set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
About our sand mastic in Portsoy
Sand mastic doesn’t last for ever and gaps open up round the frame. Renewing it closes the gap and tidies the surround. We’re often asked to deal with old sand mastic that has cracked, crumbled or fallen out and draughts and rain around sash boxes, on timber door frames, tenement windows and period & listed homes.
Mastic can only go onto a dry joint, so outside work in Portsoy depends on the weather. Let us know about access to every frame, including any upstairs.
Big or small, it’s backed by our one-year guarantee in Portsoy and across Aberdeenshire.
- Where
- Portsoy (AB45)
- Wider area
- Aberdeenshire
- Guarantee
- One year on every job
- Quote
- A clear quote up front
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Keeping the joints in good condition
Good habits help new joints last longer. Our tips:
- Avoid heavy scraping on the mastic joint
- Check the mastic when you check the paintwork
- Check with your local planning authority if your home is listed
- Avoid patching sand mastic with silicone
Do not touch or press the mastic while it hardens. It skins over quickly, but takes longer to harden fully.
Good mastic helps keep the frame dry. Failed mastic lets water reach the timber, which can lead to rot.
What affects the quote in Portsoy
Jobs vary more than people expect. What affects the quote:
- How many rooms, windows or areas are involved
- The size of the job
- Whether the work is at height
- Mould in or behind the old joints
Commercial jobs are quoted on the same basis as homes: the amount of work, how we reach it and what it needs, along with when we can work on site. Call for a quick quote and we will go through it with you.
Helping us quote
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- If it’s domestic, commercial or a hotel
- What’s wrong with the joints now
- Access, such as stairs, a lift or height
- Roughly how big the job is
Getting a quote is simple: let us know the job and the location and its rough size. A few pictures by email make the job easier to understand, and we will take it from there.
When something else is needed
We will always be straight with you, so here’s what sealant can’t fix:
- Planning or listed building consent (your local planning authority decides)
- Rotten sashes, sills or window boxes (a joiner’s job)
- Cracked or broken glass
If in doubt, email us at info@mrmastic.co.uk and we will say what we think before booking.
Where we work in Portsoy
- Timber door frames
- Tenement windows
- Sash and case windows
- Brick reveals
- Stone surrounds
- Period & listed homes
What we do, step by step
At the end, we look at the finished work together and explain the cure time. The visit itself generally takes anything from a few hours to a full day, depending on how many windows, depending on the amount of work. In smaller Scottish places, parking is generally less of an issue than access and distance. Let us know how to find you and how to reach the joints.
- 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.
- The sand mastic is mixed and pressed into the joint by hand.
- We dress the finish so it sits neatly against the masonry.
Preparing for the visit
- Keep pets and children clear of the area while we work
- For indoor joints, keep the area dry beforehand if you can
- Clear items away from the joints we’re working on
Ask for a quote
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and email photos if that’s easy.
Related advice
Portsoy: your questions answered
Does living near the coast affect sand mastic in Portsoy?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. The right product, a clean joint and the right depth all help it cope.
Can you do sand mastic in Portsoy?
Yes, Portsoy is within the area we cover. Our work covers the whole of Scotland. You can drop us a line at info@mrmastic.co.uk and tell us what needs doing.
Is consent needed for window work on a listed home?
Checking first is sensible. Your local planning authority can say if consent is needed for work on a listed home or in a conservation area.
Should I try DIY first?
Sometimes. The key is preparation: remove all the old material and work on a clean, dry joint. If it does not work out, we can redo it.
How much does sand mastic cost in Portsoy?
There’s no set price, as it depends on the job: how much there is, what’s there now, how we reach it and what it needs. We agree the price before any work begins.
Is it messy?
No. The area is protected while we work and cleaned up afterwards.
What guarantee comes with the work?
All our work has a 12-month guarantee.
Will there be a smell?
That depends on the sealant. Some smell for a while, some hardly at all, and any smell fades as they cure.
Places near Portsoy
What else we do in Portsoy
Why act early in Portsoy
A silicone bead can be quicker, but it can look wrong on a period surround. Sand mastic suits the building and blends with the stone or brick. Exposed walls in smaller Scottish places take a lot of wind and rain, and damp in stone or harled walls takes a long time to dry once water gets behind a joint.
Every job is a little different, so each one gets its own quote. Size, access and the product the joint needs all play a part.
Why book with us
- Anti-fungal sanitary silicone in wet areas
- Experience in homes, commercial sites and hotels
- Trusted Arbo and Everbuild sealants
- We leave the area clean and tidy
Read our cost guide or what customers say.
What sand mastic looks like in Portsoy
Portsoy is within about 1 mile of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. Both are hard on the mastic around older windows and doors, which can dry out and crack sooner where a building faces the weather. Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and sound outside sealant is part of that.
In the older streets around St John's Episcopal Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Portsoy is about 10 miles east of Buckie, in Aberdeenshire. Every kind of property in Portsoy is covered for sand mastic. Every job comes with our one-year guarantee. Portsoy is one of 161 towns and villages in Aberdeenshire we cover for sand mastic. Our Aberdeen page covers work nearby.
All of AB45 is covered for sand mastic. We cover properties on South High Street, North High Street and Main Street and the roads around them. Portsoy sits on or near the A98 and B9019, so getting to you is simple. Other places close to Portsoy include Sandend (2 miles west), Fordyce (2 miles south-west), Boyndie (4 miles south-east), Ladysbridge (4 miles east) and Whitehills (4 miles east). Within a short drive, we also cover Turriff (13 miles south-east), Banff (6 miles east), Macduff (7 miles east), Aberchirder (9 miles south) and Gardenstown (13 miles 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.
Landmarks near Portsoy
A little further out are Boyne Castle (1.5 miles east) and Campbell Hospital (within half a mile west). For a walk, there’s Durn Hill.
What we’re called out for in Portsoy
Age is the main cause. Even well-laid mastic needs renewing in time, depending on exposure and upkeep.
The most common problems we see are:
- Silicone on a period window that looks wrong
- Gaps between timber frames and stone or brick
- Mastic that needs renewing before redecorating
- Cement or filler used on old window joints that has cracked
Around Portsoy, as everywhere, sand mastic is only as good as the preparation behind it.
Before you book anyone
- How the surfaces are prepared before sealing
- Who turns up on the day
- What guarantee comes with the work
- Whether the sealant suits the joint