Highland · Scotland
Sand mastic for sash & case windows in Westfield, Highland
Sand mastic for Westfield and the surrounding area: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- Tired mastic found when preparing windows for paint
- Gaps where the frame meets the masonry
- Old cement repairs round a window that have failed
Aftercare tips
A little care helps the new joints last. Our advice:
- Leave the new mastic unpainted
- Keep modern sealant off the mastic
- Plan mastic work ahead of painting
- Go gently near the mastic when preparing windows
Keep gutters and sills clear so water runs away from the surround. Water sitting against the mastic shortens its life.
Fine cracks show the mastic is starting to fail. Renewing it then is simpler than waiting until it falls out.
Sand mastic for homes and businesses in Westfield
Across Westfield, we renew sand mastic around sash and case windows. Every joint is cleaned out and filled by hand, finished to suit the masonry. We’re often asked to deal with mastic that needs renewing before redecorating and gaps where the frame meets the masonry, across tenement windows, period & listed homes and timber door frames.
Older stone-built homes in Scotland often have sash and case or timber windows set in stone. The sealant has to suit the stone, which rules out acetoxy silicones that can mark or attack it.
Whatever the size of the job, it’s backed by our one-year guarantee in Westfield and across Highland.
- Location
- Westfield (KW14)
- Region
- Highland
- Cover
- 12 months on all our work
- Quote
- A clear price before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Surface by surface
Brick reveals
Loose mastic comes out and deep gaps are packed before the new mastic goes in.
Period and listed homes
Period homes look their best with traditional materials, and sand mastic is one of them.
Why act early in Westfield
An open joint round the frame lets weather in. Water can get to the frame and the masonry, so dealing with it now protects both. 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.
Commercial jobs are quoted on the same basis as homes: how much there is to do, how we reach it and what it needs. Call for a quick quote and we’ll go through it with you.
Why book with us
- More than 20 years in sealant work
- One-year guarantee on every job
- An ARBOMaster approved applicator
- Experience in homes, commercial sites and hotels
Take a look at how sealant jobs are priced and customer reviews.
What we can’t put right
To be straight with you, some problems need a different trade:
- Damaged stone surrounds
- Putty and glazing repairs
- Rotten sashes, sills or window boxes (a joiner’s job)
If you’re not sure, just send an email to info@mrmastic.co.uk and we’ll give you a straight answer.
Surfaces we seal
- Sash and case windows
- Stone surrounds
- Brick reveals
- Tenement windows
- Timber door frames
- Period & listed homes
For landlords and businesses
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance.
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
Other services in Westfield
Signs you need sand mastic in Westfield
Paint, silicone or cement used over old mastic causes problems. They do not move with the timber and we normally remove them.
Common reasons people contact us include:
- Tired mastic found when preparing windows for paint
- Wind and rain getting in round a sash window
- Weathered mastic on the most exposed windows
- Mastic round period door frames that has failed
In and around Westfield, as anywhere, good sand mastic starts with a clean, dry, properly prepared joint.
Before booking anyone
- Whether they seal over old material or remove it
- When the joint can take water or movement
- What happens if the job turns out different
- Are they insured?
Questions from Westfield
Is Westfield within the area you cover?
Yes, smaller places are covered as well as towns. We work across all of Scotland. Just mention lanes, gates or anything else about the route when you book.
I let a flat near Thurso station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. Just email us at info@mrmastic.co.uk with the address and what needs doing, and we’ll give you a clear quote.
Do I need permission for sand mastic on a listed building?
Checking first is sensible. Your local planning authority can say if consent is needed for listed or conservation-area properties.
What do you need from me for a quote?
Tell us what needs doing and where, with pictures by email if possible. If we need more, we will ask.
Is it possible to take out silicone and use sand mastic instead?
In most cases. The silicone is cut out and the joint cleaned, then point it with sand mastic.
Where are you based?
We’re based in Crawley, and we cover South East England, London and all of Scotland.
Can I paint the new mastic?
The usual advice is to leave sand mastic unpainted. Ask us before you decorate around it and we will talk you through it.
Can new sealant go over the old?
No, and we never do. It can look neat for a few weeks, but the new layer lifts away from the old one. Removing the old sealant completely is the only lasting way.
Sand mastic in Westfield: local notes
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. Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and failed outside joints work against that.
Rented homes near Thurso station change hands often, and any sash windows need sound mastic to keep draughts and rain out.
Westfield is about 4 miles south-west of Thurso, in Highland. We provide sand mastic to householders, landlords and businesses in Westfield. Westfield is one of 253 places in Highland we cover for sand mastic.
All of KW14 is within our area for sand mastic. If you’re just outside Westfield, we cover Janetstown (2 miles north-east), Glengolly (3 miles north-east), Forss (3 miles north), Thurso (4 miles north-east) and Scrabster (5 miles north-east). If you are somewhere remote, a little more planning is needed, so mention it when you ask for a quote.
Landmarks near Westfield
The nearest railway station is Thurso station, roughly 4.1 miles north-east. Nearby you will also find Dunbar Hospital (3.5 miles north-east) and Scrabster Castle (4.3 miles north-east). Open spaces near Westfield include Loch Calder and Broubster Leans RSPB Reserve.
How it works
There is not much for you to do on the day. Show us the job and we will take it from there. The work itself takes a few hours per window, depending on the condition of the joints. Outside jobs in Westfield need a dry day, because sealant won’t bond to a wet joint, so an outdoor job can move if the forecast changes. Work indoors isn’t affected.
- First we agree which joints need doing.
- 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.
Getting ready for the visit
- For business premises, tell us about site rules or sign-in
- Clear items away from the joints we’re working on
- Let us know about earlier repairs to the joints
How to get a quote
For a quote, drop us a line at info@mrmastic.co.uk with the location and a short description of the problem. We’ll send you a clear quote before any work starts.