West Lothian · Scotland
Sand mastic for sash & case windows in Mid Calder, West Lothian
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homes and businesses in Mid Calder and across West Lothian. Fully insured, ARBOMaster approved and guaranteed for a year.
- Patchy fillers round a sash window
- Gaps between timber frames and stone or brick
- Cracked mastic round a front door frame
DIY sealant or a professional job?
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
Sand mastic in Mid Calder, done properly
Traditional burnt sand mastic blends with stone and brick surrounds. It suits period and listed homes where a modern sealant bead would stand out. If you have crumbling sand mastic round a window and cement or filler used on old window joints that has cracked, we can help, whatever the surface.
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.
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.
- Place
- Mid Calder (EH53, EH54)
- Wider area
- West Lothian
- Cover
- A year, on every job
- Price
- A clear price before we start
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Why it’s worth doing now in Mid Calder
Not every draught comes from the sashes themselves. Open mastic joints round the box can let air in and new mastic seals them. Out of town in Scotland, exposed walls take a lot of weather, and once water gets behind a failed joint, damp in stone or harled walls is slow to dry out.
Doing several joints on one visit usually makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. You will get one clear quote for the whole job.
Why us?
- Full insurance on every job
- Any old sealant cut out fully, not covered over
- Arbo and Everbuild products
- A 12-month guarantee on all work
Landlord and commercial work in Mid Calder
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Resealing at the right time is simple maintenance.
Hotels need rooms back in use, so we plan the work room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
Windows and doors in Mid Calder
Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and failed outside joints work against that. With historic houses such as Howden House (about 1.4 miles west) nearby, there’s older building stock in the area around Mid Calder as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
Schools such as Inveralmond Community High School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages. In the older streets around Mid Calder Parish Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. Rented homes near Livingston South station change hands often, and cracked sand mastic around sash windows lets in the draughts tenants complain about.
Mid Calder is about 1 mile south-west of East Calder, in West Lothian. We provide sand mastic to homeowners, landlords and businesses in Mid Calder and the surrounding area. Mid Calder is one of 58 places in West Lothian where we work. Our Edinburgh page covers work nearby.
Postcode districts we cover here for sand mastic: EH53 and EH54. Whether your property is on Main Street, Avenue Park and School Lane or anywhere close by, we can help. Nearby, we also carry out sand mastic in Oakbank (1 mile south-east), East Calder (1 mile north-east), Pumpherston (1 mile north-west), Livingston (1 mile west) and Calderwood (1 mile north-east). We also work in nearby towns such as Bathgate (6 miles west), Linlithgow (8 miles north-west), Whitburn (8 miles west), Broxburn (3 miles north), Armadale (9 miles west) and Winchburgh (5 miles north).
Around Mid Calder
We work in homes and buildings around Black Bull Inn and East Calder Parish Church, among other places. The nearest railway station is Livingston South station, roughly 1.6 miles south-west of the centre. Nearby you will also find St John's Hospital (1.6 miles west) and The Centre (1.4 miles south-west). For a walk, there’s Dechmont Law.
How the job changes by surface
Sash and case windows
On a sash window, the mastic joint shows on the outside, so a neat, even finish matters.
Stone surrounds
We take care not to mark the stone while raking out the old mastic.
What we do, step by step
Before we leave, we go over the finished joints with you and tell you how long to leave it. The visit itself normally takes a few hours per window, depending on the condition of the joints, depending on the amount of work. In smaller Scottish places, parking is generally less of an issue than access and distance. Tell us how to find the property and how to reach the work.
- We check the window surrounds and agree which joints need renewing.
- The loose and crumbling mastic is raked out and the joint cleaned.
- Large voids are packed out first, so the mastic is not too thick.
- We mix the sand mastic and apply it by hand, shaping it to the joint.
- The mastic is finished to sit tidily against the stone or brick.
Getting ready for the visit
- Try not to wet indoor joints just before the visit
- Mention any tricky access
- Tell us about any water getting in
Get a quote
It all starts with a short chat. Describe the problem, the location and the size of the job. Whenever you are ready, email us at info@mrmastic.co.uk.
Related advice
What we can’t put right
Some problems need a builder, plumber or other trade rather than us:
- Cracked or broken glass
- Decisions on consent for listed homes
- Sashes that rattle, stick or won’t open
If in doubt, email us at info@mrmastic.co.uk and we’ll say what we think.
What we seal
- Brick reveals
- Sash and case windows
- Stone surrounds
- Tenement windows
- Period & listed homes
- Timber door frames
Mid Calder questions
Do you cover Mid Calder for sand mastic?
Yes, Mid Calder is within the area we cover. We work across all of Scotland. You can send an email to info@mrmastic.co.uk and tell us what needs doing.
Do you cover smaller places like Mid Calder?
Yes, we do. We work across all of Scotland, from towns to the smallest places. Longer journeys are simply planned in advance.
Are you an approved applicator?
Yes. Mr Mastic is an ARBOMaster approved applicator, and we’re fully insured.
Do you work for hotels and businesses?
Yes. We work in offices, washrooms, hotels and other commercial premises, as well as homes. We can talk about working times when we quote.
Do you have insurance?
Yes. We are fully insured, with over 20 years’ experience in sealant work.
Is it possible to paint over sand mastic?
Traditional guidance is not to paint over sand mastic. Ask us before you decorate around it and we’ll advise.
Do you work for landlords and businesses?
Yes. As well as homeowners, we work for landlords, agents, businesses and hotels in Mid Calder.
Do I need to be at home?
Access is agreed with you when the job is booked. Indoors, that generally means someone at home.
Keeping the joints in good condition
Joint life depends on how it’s used and looked after. We suggest:
- Plan mastic work ahead of painting
- Keep sills and gutters clear so water drains away
- Avoid heavy scraping on the mastic joint
- Do not paint over the new mastic
Check the mastic when you check the paintwork. Catching cracks early keeps repairs small.
Gaps round a sash box let in draughts and rain. Left, the gap tends to get bigger as more mastic falls out.