North Lanarkshire · Scotland
Sand mastic for sash & case windows in Motherwell, North Lanarkshire
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homes and businesses in Motherwell and across North Lanarkshire. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- A silicone bead on a sash window that spoils the look
- Draughts and rain around sash boxes
- Weathered mastic on the most exposed windows
How we handle sand mastic in Motherwell
Fresh sand mastic forms a skin quite soon, but it takes longer to harden fully. Traditionally, sand mastic is left unpainted, so ask us before you decorate. If you have mastic that needs renewing before redecorating and failed mastic on an exposed elevation, we can put it right, on sash and case windows, stone surrounds and period & listed homes alike.
In a town like Motherwell, stone-built older streets normally sit alongside harled houses and newer estates, and windows range from older sash and case to modern uPVC. Each needs the right sealant against the right wall.
Our work is backed for twelve months.
- Place
- Motherwell (ML1)
- Region
- North Lanarkshire
- Guarantee
- A year, on every job
- Quote
- A clear quote up front
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
What we can’t put right
In fairness, there are a few things sealant will not fix:
- Planning or listed building consent (your local planning authority decides)
- Putty and glazing repairs
- Sashes that rattle, stick or won’t open
If in doubt, send an email to info@mrmastic.co.uk and we’ll say what we think before you book.
Where we work in Motherwell
- Period & listed homes
- Stone surrounds
- Sash and case windows
- Timber door frames
- Brick reveals
- Tenement windows
Should I try it myself first?
A careful DIYer can reseal a simple joint, 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.
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.
Why act early in Motherwell
If you are redecorating, renew the mastic first. Painting over failed mastic doesn’t seal it, and the new mastic is traditionally left unpainted. For landlords in Motherwell, damp and leaks can fall under the Repairing Standard. Replacing failed sealant early is simpler than dealing with a complaint.
Every job is a little different, so each one gets its own quote. Size, access and the product the joint needs all play a part.
Why book with us
- Fully insured
- Anti-fungal silicone where joints get wet
- Experience in homes, commercial sites and hotels
- Arbo and Everbuild products
Read our cost guide or customer reviews.
More services for Motherwell
FAQs for Motherwell
Is there a guarantee on sand mastic in Motherwell?
Every job comes with our one-year guarantee, wherever it is. We are also fully insured and ARBOMaster approved.
Do you work for landlords with property near Motherwell station?
Yes, rental work is part of what we do. Just send an email to info@mrmastic.co.uk and tell us about the property, and we will give you a clear price.
How long does sand mastic take?
As a guide, most jobs take a few hours for a single window, longer for several. Larger jobs naturally take longer, and we will tell you how long to expect.
Are you an approved applicator?
Yes. We hold ARBOMaster approved applicator status.
Does someone need to be in?
For indoor joints, yes, someone needs to let us in. Once we have agreed the job, you don’t need to watch us work.
Do the sealants smell?
Sometimes, a little. Any smell clears as the sealant cures, and ventilation helps.
What do you need from me for a quote?
Tell us what needs doing and where. If we need more, we’ll ask.
Can sand mastic be painted?
Traditional guidance is not to paint over sand mastic. Ask us before you decorate around it and we’ll advise.
How it works
On the day, we look over the joints with you first. We protect the surfaces around the joints before we start. Most jobs take anything from a few hours to a full day, depending on how many windows. Parking around Motherwell is rarely difficult, though older streets in the centre can be tight. For flats, mention the shared stair or door entry system.
- We look at the surrounds with you and agree the joints to renew.
- We remove the old, loose mastic.
- We pack any deep voids first.
- The sand mastic is mixed and pressed into the joint by hand.
- The surface is finished to suit the stone or brick.
Before we arrive
- Let us know about stairs, lifts or work at height
- Let us know about earlier repairs to the joints
- Plan for the work area to be out of bounds to pets and children
How to get a quote
We quote each job on its own, so start by telling us what you need. Simply email us at info@mrmastic.co.uk and describe the job.
Read more
Windows and doors in Motherwell
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 Cambusnethan House (about 3.2 miles south-east) nearby, there’s older building stock in the area around Motherwell as well as newer homes. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.
Managing a site like Braidhurst High School? Then its window and door frames need their mastic kept sound, just like a home’s. Rented homes near Motherwell station change hands often, and any sash windows need sound mastic to keep draughts and rain out. If you live in an older home near Dalziel High Parish Church, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Motherwell is about 12 miles east of Glasgow, in North Lanarkshire. Whether you’re in the middle of Motherwell or further out, sand mastic is available for homes and businesses alike. Motherwell is one of 89 towns and villages in North Lanarkshire where we work. You can also see our page for Glasgow, about 12 miles away.
Here we cover the ML1 postcode area for sand mastic. Whether your property is on Civic Square, Station Road and Jerviston Street or a nearby road, we can help. Motherwell is on the A721 and A723, so it’s easy for us to get to with everything needed for sand mastic. Close by, we work in Ravenscraig (1 mile south-east), Airbles (1 mile south-west), Muirhouse (2 miles south), Netherton (2 miles south-east) and Coltness (3 miles east). We also work in nearby towns such as Cumbernauld (11 miles north), Coatbridge (4 miles north-west), Airdrie (5 miles north), Kilsyth (13 miles north), Burnfoot (5 miles north) and Shotts (7 miles east). As one of the bigger places in North Lanarkshire, Motherwell has homes, rented property and businesses of every kind.
Local landmarks in Motherwell
We work in homes and buildings around The Brandon Works pub, Ladywell Primary School and Duchess of Hamilton Park. The nearest railway station is Motherwell station, about 0.6 miles south-west of the centre. A little further out are North Lanarkshire Heritage Centre (0.7 miles south-west) and Dalzell House (1.7 miles south). Not far away are Baron's Haugh RSPB Reserve and Strathclyde Loch.
How to look after the new joints
Good habits help new joints last longer. A few tips:
- Make sure water runs off the sill
- Renew mastic before redecorating the windows
- Have rotten timber repaired before new mastic goes in
- Take care around the mastic when scraping paint
Look at the mastic when you look over the windows. Small cracks are easier to deal with early.
Once mastic starts to crumble, rain gets in. It can soak into the frame and the surrounding masonry, so renewing it early is worth it.
For landlords and businesses
Hotels need rooms back in use, so we plan the work room by room. Hotel work is part of what we do, alongside homes and businesses.
We also work for property managers and facilities teams in Motherwell and across North Lanarkshire. We can quote a run of properties together, and we’re fully insured for the work.
How we quote for sand mastic
The price is agreed before any work begins. It takes into account:
- Whether the work is at height
- The size of the job
- The type of sealant required
- The old material and how stubborn it is
What you pay reflects the work, not a rough estimate. That is why we ask about the job first.
What to tell us for a quote
To make quoting easier, please include:
- What the problem is, such as mould, gaps, leaks or cracking
- Whether it has been sealed before
- Access, such as stairs, a lift or height
- Photos by email, if that’s easy
There’s no standard price list, because every job is different. Instead, we give you a clear quote for your job. To arrange one, drop us a line at info@mrmastic.co.uk.