North Lanarkshire · Scotland
Sand mastic for sash & case windows in Crosshouse, North Lanarkshire
Our applicators work in Crosshouse on traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old sealant removed completely, joints prepared properly.
- A silicone bead on a sash window that spoils the look
- Old cement repairs round a window that have failed
- Wind and rain getting in round a sash window
When to call us in Crosshouse
Timber swells and shrinks with the weather. That movement opens up the mastic joint over time.
If you can see any of these, it’s time to have the joints looked at:
- Draughty sash windows at the surround
- Old sand mastic that has cracked, crumbled or fallen out
- Patchy fillers round a sash window
- Gaps round a timber door in stone or brick
Letting a property close to Greenfaulds station? Then any sash windows need sound mastic to keep draughts and rain out.
Comparing quotes
- Whether they seal over old material or remove it
- What the quote includes, VAT included or not
- What the cure time is
- The length of the guarantee
How we handle sand mastic in Crosshouse
Traditional burnt sand mastic blends with stone and brick surrounds. It’s a good fit for period properties where a modern sealant bead would stand out. We’re often asked to deal with silicone on a period window that looks wrong and wind and rain getting in round a sash window, on period & listed homes, timber door frames and sash and case windows.
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.
The work is covered for a year after we finish. If there’s a problem with it, please email us at info@mrmastic.co.uk.

- Place
- Crosshouse (ML6)
- Wider area
- North Lanarkshire
- Guarantee
- 12 months on all our work
- Quotes
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
What the job involves on each surface
Brick reveals
Gaps between frame and brick let in rain and draughts. Renewing the mastic closes it.
Period and listed homes
On a listed home or in a conservation area, the right material matters. Like-for-like sand mastic is usually favoured.
Why deal with it now?
Silicone might seem the quicker option, but it can look wrong on a period surround. Sand mastic suits the building and blends with the stone or brick. Around Crosshouse, water from a failed joint in an older stone home can soak into timber and plaster, which is a far bigger job than the sealant.
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. We take all of that into account in your quote.
Why Crosshouse customers choose us
- Any old sealant cut out fully, not covered over
- Homes, businesses and hotels
- Anti-fungal sanitary silicone in wet areas
- An ARBOMaster approved applicator
How we quote for sand mastic
We don’t publish a price list. What we look at:
- Mould in or behind the old joints
- The old material and how stubborn it is
- The number and length of the joints
- When we can work, for business premises
What you pay reflects the work, not a rough estimate. That’s why we ask a few questions first.
Asking for a quote
Photos help, but a description is a good start. Please mention:
- Any access issues, like height or stairs
- What the problem is, such as mould, gaps, leaks or cracking
- Where the job is, and your postcode
- Photos by email, if that’s easy
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we will talk you through what we’d do. When it suits you, send an email to info@mrmastic.co.uk.
Windows and doors in Crosshouse
Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and failed outside joints work against that. Many older homes in Scotland have sash and case windows, often pointed into the wall with traditional sand mastic.
Managing a site like Greenfaulds High School? Then its window and door frames need their mastic kept sound, just like a home’s.
Crosshouse is about 2 miles south of Cumbernauld, in North Lanarkshire. Homes, rented property, offices and hotels in Crosshouse can book us for sand mastic, old or new, large or small. The work is guaranteed for a year. We cover 89 towns and villages across North Lanarkshire, large and small. Glasgow is on our list too, around 12 miles away.
Every address in ML6 is covered for sand mastic, from the main roads to the quietest streets. Neighbouring places we cover for sand mastic include Riggend (1 mile south), Wattston (1 mile south-east), Greenfaulds (1 mile north-west), Greengairs (2 miles east) and Carbrain (2 miles north). We also work in nearby towns such as Motherwell (9 miles south), Coatbridge (5 miles south), Airdrie (4 miles south), Wishaw (10 miles south), Bellshill (7 miles south) and Kilsyth (5 miles north-west).
Near you in Crosshouse
Crosshouse’s nearest station is Greenfaulds station, about 1 mile north-west. Nearby you’ll also find Cumbernauld Castle (2.7 miles north) and Antonine Centre (1.8 miles north). The countryside around Crosshouse includes Bar Hill.
The process
A visit follows a simple pattern: we check the joints, mask and protect the surrounding surfaces, carry out the job and clear up. It normally takes anything from a few hours to a full day, depending on how many windows. Somewhere like Crosshouse may be a longer drive, and the journey is planned ahead. Tell us about tracks, gates, a ferry crossing or anything unusual about getting there.
- 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
- On commercial sites, let us know about site rules
- Where the joints are inside, avoid wetting them before we arrive
- Let us know about parking restrictions
Ask for a quote
For sand mastic in Crosshouse, email us at info@mrmastic.co.uk. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
Related advice
Nearby places to Crosshouse
Other services in Crosshouse
Crosshouse questions
Is Crosshouse within the area you cover?
Yes. Crosshouse is within the area we cover, which takes in towns, villages and rural addresses. Our work covers the whole of Scotland. Let us know about access, parking and anything unusual about getting there when you book.
Is Crosshouse in your area for sand mastic?
Yes, Crosshouse 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.
Do you remove the old sealant?
Yes, every time. New silicone doesn’t stick to old silicone, so any old material comes out before anything new goes in.
Can I do it myself?
It depends on the job. High-level, external movement and fire-rated joints are professional jobs.
What sealant do you use?
We choose the sealant for the joint, not the other way round. Where it moves, gets wet or faces the weather makes a difference, and we’ll explain our choice.
Do the sealants smell?
Some sealants have a smell while they cure. Opening a window helps.
Can landlords and businesses book you?
Yes, often. We can quote for several properties at once, and between tenancies is a good time for the work.
Do you guarantee sand mastic work?
Our 12-month guarantee applies to all our work.
Aftercare tips
After the cure time, these simple habits help:
- Avoid patching sand mastic with silicone
- Renew mastic before redecorating the windows
- Ask a joiner to look at soft timber first
- Clear gutters so water doesn’t pour onto the windows
Make sure water drains away from the window surround. Water sitting against the mastic shortens its life.
Renewing mastic before redecorating saves doing it twice. Painting over failed mastic hides the problem for a while.
Should I try it myself first?
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
