Highland · Scotland
Sand Mastic in Scrabster
We cover Scrabster for traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old sealant removed completely, joints prepared properly and every job guaranteed for a year.
- Gaps between timber frames and stone or brick
- Mastic dropping out of the joint
- Draughty sash windows at the surround
Common problems we fix in Scrabster
Paint, silicone or cement used over old mastic causes problems. They don’t move with the timber and we normally remove them.
Most people get in touch after spotting something like this:
- Mastic that needs renewing before redecorating
- Draughts and rain around sash boxes
- Mastic worn away on windows facing the weather
- A silicone bead on a sash window that spoils the look
For site and facilities teams at buildings such as Thurso High School, the mastic around its windows and doors needs looking after like any other building’s.
What your quote should include
- What product goes in the joint
- Is the old sealant removed completely?
- What happens if they find a problem under the old sealant
- What the cure time is
Sand mastic for homes and businesses in Scrabster
Old sand mastic cracks, crumbles and falls out over time, leaving gaps round the window. We rake it out and renew it and tidies the surround. We are often asked to deal with tired mastic found when preparing windows for paint and cracked mastic round a front door frame, on period & listed homes, sash and case windows and brick reveals.
In and around a place like Scrabster, homes range from older stone-built cottages to newer houses. Wind-driven rain finds any gap around a frame or sill, 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.
- Location
- Scrabster (KW14)
- Region
- Highland
- Cover
- A year, on every job
- Quotes
- Quoted before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Other services in Scrabster
Why deal with it now?
An open joint round the frame lets weather in. Water can get to the frame and the masonry so renewing it early protects the window. Out of town in Scotland, exposed walls take a lot of weather, and damp in stone or harled walls takes a long time to dry once water gets behind a joint.
Leaving a failed joint usually makes the job bigger, not smaller, as water and mould keep getting in. If you are unsure, send an email to info@mrmastic.co.uk and we’ll give you an honest view and a quote.
Why Scrabster clients choose us
- Every job guaranteed for a year
- Sanitary silicone with an anti-fungal additive in wet areas
- Old sealant always removed completely
- Neat joints and a tidy finish
See what affects the cost or our reviews.
Scrabster: your questions answered
Is Scrabster within the area you cover?
Yes, we do. Our work covers the whole of Scotland, and smaller places are part of that. Longer journeys are simply planned in advance.
Do you work for landlords with property near Thurso station?
Yes. We work for landlords and letting agents as well as householders. Just email us at info@mrmastic.co.uk with the address and what needs doing, and we’ll send you a clear quote.
What should I tell you?
Tell us what needs doing and where. If we need more, we will ask.
Can new sealant go over the old?
No, and we never do. It may look fine at first, but the new layer lifts away from the old one. Removing the old sealant completely is the only lasting way.
Do you remove the old sealant?
Yes. We cut out all the old sealant and clean the joint before applying anything new.
Can sand mastic be painted?
It’s traditionally left unpainted, as guidance on traditional windows advises. Ask us before decorating.
Is it possible to take out silicone and use sand mastic instead?
Yes, it’s a common request. All the old silicone is removed first so the mastic can sit properly.
Should I use sand mastic or silicone?
For period timber windows in stone or brick, sand mastic is often the better fit. Modern frames normally suit a flexible sealant, and we will explain why.
Work for landlords, hotels and businesses
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. Several properties can go on one quote.
We also work for property managers and facilities teams in Scrabster and across Highland. We can quote a run of properties together.
What affects the cost of sand mastic
We do not publish a price list, because no two jobs are the same. What we look at:
- Any mould that needs treating
- Whether the work is at height
- The type of sealant required
- The size of the job
The cost reflects the work involved, not a rough estimate. That’s why we ask a few questions first.
Helping us quote
What to tell us when you ask for a quote:
- How we’d reach the joints
- The rough size of the job
- The problem you’ve noticed
- Where the property is
It all starts with a short chat. Describe the problem, the location and the size of the job. Whenever you are ready, drop us a line at info@mrmastic.co.uk.
Keeping the joints in good condition
Simple care keeps the joints in good condition. We recommend:
- Avoid patching sand mastic with silicone
- Avoid heavy scraping on the mastic joint
- Have rotten timber repaired before new mastic goes in
- Make sure water runs off the sill
Avoid sealing over the mastic with silicone. If you see a crack, ask us to take a look rather than patching it.
Small cracks are a sign the mastic is ageing. Renewing it then is simpler than waiting until it falls out.
Sand mastic in Scrabster: local notes
Scrabster 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. That’s hard on the mastic around older windows and doors, especially on the side facing the sea. 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.
For landlords with property near Thurso station, any sash windows need sound mastic to keep draughts and rain out.
Scrabster is about 2 miles north-west of Thurso, in Highland. Our applicators cover sand mastic for homes and businesses in Scrabster. Scrabster is one of 253 towns and villages in Highland we cover.
Jobs for sand mastic in KW14 works the same way as everywhere else we cover. We cover properties on Clett Terrace, St Clair Avenue and Holborn Place and the roads around them. Close by, we work in Thurso (2 miles south-east), Glengolly (3 miles south), Janetstown (3 miles south), Forss (3 miles west) and Murkle (4 miles east). Remote and island addresses need a little more planning, so please mention your location when you send an email to info@mrmastic.co.uk.
Around Scrabster
The nearest railway station is Thurso station, about 1.7 miles south-east. Nearby you will also find Dunbar Hospital (1.9 miles south) and Scrabster Castle (0.9 miles south-east).
How the visit works
We bring everything the job needs with us. Once we’ve agreed what’s being done, the area is protected and the work begins. Most jobs take a few hours for a single window, longer for several. Outdoor work around Scrabster depends on the weather, as sealant needs a dry surface, so an outdoor job can move if the forecast changes. Work indoors is not affected.
- First, we look at the surrounds with you and agree what needs doing.
- We rake out the old mastic and clean the joint.
- Large voids are packed out first, so the mastic is not too thick.
- The mastic is mixed, pressed into the joint by hand and shaped.
- The finish is dressed so it sits neatly against the stone or brick.
Preparing for the visit
- Clear items away from the joints we are working on
- Tell us if parking is tricky
- Try not to wet indoor joints just before the visit
Ask for a quote
Every job is quoted individually, so start by telling us what you need. Just drop us a line at info@mrmastic.co.uk with the details.
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What we can’t put right
Sealant isn’t the answer to every problem, and we’ll tell you before we start. It will not solve:
- Broken panes
- Rotten sashes, sills or window boxes (a joiner’s job)
- Masonry that needs repairing
If you are not sure, just email us at info@mrmastic.co.uk and we will give you a straight answer.
Joints and surfaces we work on
- Brick reveals
- Sash and case windows
- Tenement windows
- Period & listed homes
- Stone surrounds
- Timber door frames