Na h-Eileanan Siar · Scotland
Sand Mastic in Cross
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homes and businesses in Cross and across Na h-Eileanan Siar. Fully insured, ARBOMaster approved and guaranteed for a year.
- Old sand mastic that has cracked, crumbled or fallen out
- Mastic worn away on windows facing the weather
- Mastic round period door frames that has failed
About our sand mastic in Cross
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 window mastic to renew ahead of painting and crumbling sand mastic round a window, across brick reveals, timber door frames and period & listed homes.
Many older Scottish homes still have timber windows set into stone walls. The sealant has to suit the stone, which rules out acetoxy silicones that can mark or attack it.
Our work is backed for twelve months, in Cross and everywhere else we cover.
- Where
- Cross (HS2)
- Wider area
- Na h-Eileanan Siar
- Cover
- 12 months on all our work
- Price
- A clear quote up front
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Your questions about sand mastic in Cross
Does living near the coast affect sand mastic in Cross?
Near the sea, outside joints face more wind, rain and salt than they would inland, so the choice of sealant and the preparation matter even more. Walls facing the sea are generally the first to need attention.
Is Cross in your area for sand mastic?
Yes, Cross is within the area we cover. Our work covers the whole of Scotland. Just drop us a line at info@mrmastic.co.uk with a few details of the job.
What exactly is sand mastic?
Sand plus a binder based on linseed oil. It’s built up in the joint by hand and shaped to suit the surround.
Do you work for hotels and businesses?
Yes. We work in offices, washrooms, hotels and other commercial premises, as well as homes. Working times can be discussed when we quote.
Will there be a smell?
Some sealants have a smell while they cure. Opening a window helps.
Do I need to be at home?
Access is agreed with you when the job is booked. Indoors, that normally means someone at home.
Is it messy?
Tidy work is part of the job. Nearby surfaces are protected.
Do you take out the old sealant first?
Yes. We cut out all the old sealant and clean the joint.
How we quote for sand mastic
Some jobs are bigger than they look, and some smaller. The main factors:
- The number and length of the joints
- Access and height
- The type of sealant required
- Whether there’s mould to deal with
Some things make a job bigger or smaller: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
Helping us quote
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- Any access issues, like height or stairs
- Whether it has been sealed before
- Whether it’s a home or a business
- Pictures of the joints, sent by email
For sand mastic in Cross, send an email to info@mrmastic.co.uk. Tell us what the problem is and where, and you’ll get a clear quote before any work starts.
How it works
We work through the job in order: protection first, then preparation, sealing and a tidy-up. For most jobs that takes anything from a few hours to a full day, depending on how many windows, and the area is left clean. For a place like Cross, longer drives are planned in advance. Mention tracks, gates, ferries or anything else about the route.
- We check each window surround and the condition of the joint.
- We rake out the old mastic and clean the joint.
- We fill deep gaps so the new mastic is not too thick.
- We point the joint with sand mastic by hand.
- We finish the mastic to a tidy line.
Before we arrive
- Try not to wet indoor joints just before the visit
- Keep pets and children clear of the area while we work
- Let us know about earlier repairs to the joints
Ask for a quote
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is. Whenever you’re ready, email us at info@mrmastic.co.uk.
Advice
Windows and doors in Cross
Cross is within about 2 miles of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That is hard on the mastic around older windows and doors, especially on the side facing the sea. Sash and case windows are common in older Scottish homes, often pointed into the wall with traditional sand mastic.
If you live in an older home near Church of Scotland, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Cross (Gaelic: Cros) is in Na h-Eileanan Siar. Whether you are in the middle of Cross or further out, we cover sand mastic for every kind of property. Our Na h-Eileanan Siar coverage runs to 87 places, and Cross is one of them.
Here we cover the HS2 postcode area for sand mastic. You’ll find streets such as Rathad Chros-Sgiogarstaigh, Back Street and New Street. Other places close to Cross include North Dell (1 mile west), Nis (1 mile east), Ness (1 mile east), Lionel (2 miles north-east) and Lìonal (2 miles north-east). Remote and island addresses need a little more planning, so tell us where you are when you ask for a quote.
Landmarks near Cross
Nearby you’ll also find Dell Mill (within half a mile west). The countryside around Cross includes Loch Langavat.
Different surfaces, different methods
Brick reveals
Gaps between frame and brick let in rain and draughts. New mastic seals the gap.
Tenement and terrace windows
In shared buildings, the windows may be part of a wider repair, so check who is responsible first.
Aftercare tips
Good habits help new joints last longer. A few tips:
- Keep modern sealant off the mastic
- Check the mastic when you check the paintwork
- Clear gutters so water doesn’t pour onto the windows
- Sort the mastic before the decorators arrive
Make sure water drains away from the window surround. Water sitting against the mastic shortens its life.
Small cracks are a sign the mastic is ageing. Renewing it then is simpler than waiting until it falls out.
When something else is needed
We’d rather tell you now than do work that will not last, so these are the limits:
- Planning or listed building consent (your local planning authority decides)
- Crumbling stone or brickwork round the window
- Timber that has rotted
If you’re not sure, just send an email to info@mrmastic.co.uk and we will give you a straight answer before you book.
What we seal
- Sash and case windows
- Tenement windows
- Stone surrounds
- Brick reveals
- Period & listed homes
- Timber door frames
Also near Cross
Other services in Cross
When to call us in Cross
Over the years, sand mastic weathers. It dries out, cracks and loses its grip from the frame or the masonry.
People usually contact us when they notice something like this:
- Open joints round the window box
- Old sand mastic that has cracked, crumbled or fallen out
- Draughty sash windows at the surround
- A silicone bead on a sash window that spoils the look
In and around Cross, as anywhere, good sand mastic starts with a clean, dry, properly prepared joint.
Questions to ask before booking
- Is the old sealant removed completely?
- How the surfaces are prepared before sealing
- Who does the work, and how experienced they are
- When the joint can take water or movement
Leave it or put it right?
Replacing sash windows is a big decision for a period home, and in listed buildings it may need consent. If the frames are sound, renewing the mastic deals with gaps and draughts at the surround. Around Cross, water from a failed joint in an older stone home can soak into timber and plaster.
Every job is a little different, so each one gets its own quote. Size, access and the product the joint needs all make a difference.
Why choose Mr Mastic in Cross
- Anti-fungal sanitary silicone in wet areas
- Old sealant always removed completely
- Rated 4.9 stars on Google
- 20+ years of sealant experience
Take a look at how sealant jobs are priced or what customers say.