South Lanarkshire · Scotland
Sand Mastic in New Lanark
Sand mastic across New Lanark and nearby, with every bit of old sealant taken out first.
- Crumbling sand mastic round a window
- Patchy fillers round a sash window
- Gaps where the frame meets the masonry
Sand mastic for homes and businesses in New Lanark
We renew sand mastic around sash windows and doors in stone and brick. Out comes the old, loose mastic, the joint is prepared and new mastic is shaped by hand. Typical jobs include silicone on a period window that looks wrong and weathered mastic on the most exposed windows, on brick reveals, sash and case windows and stone surrounds.
Mastic can only go onto a dry joint, so outside work in New Lanark depends on the weather. Tell us about access to all the windows and doors, upstairs included.
Big or small, it’s backed by our 12-month guarantee in New Lanark and across South Lanarkshire.
- Where
- New Lanark (ML11)
- Region
- South Lanarkshire
- Guarantee
- One year on every job
- Price
- Quoted before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026
FAQs for New Lanark
Do you cover smaller places like New Lanark?
Yes, smaller places are covered as well as towns. We work across all of Scotland. Let us know about access, parking and anything unusual about getting there when you book.
Can you help a landlord with a rental near Lanark station?
Yes, rental work is part of what we do. You can email us at info@mrmastic.co.uk with the address and a few details, and we’ll give you a fixed price before we start.
What guarantee comes with the work?
Our one-year guarantee covers every job.
Are you ARBOMaster approved?
Yes. We are an ARBOMaster approved applicator, the approved applicator scheme for Arbo sealants.
Can you match the sealant colour?
We help you choose a colour that suits, from white and clear to greys and other shades. The choice depends on the product the joint needs.
Is consent needed for window work on a listed home?
Yes, it’s worth checking. Ask your local planning authority whether consent is needed for work on a listed home or in a conservation area.
Should I try DIY first?
You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. If it does not work out, we can redo it.
Should I use sand mastic or silicone?
That depends on your windows. On many period windows, sand mastic looks right and suits the building and newer frames normally get a flexible sealant.
Towns and villages near New Lanark
What else we do in New Lanark
What happens if it’s left?
Cement-based fillers and modern sealants do not always suit a period surround. Sand mastic matches what was there, which can matter on listed and conservation-area homes. In a place like New Lanark, small leaks are easy to put off, but water behind a failed seal does the most damage when nobody’s watching.
No two jobs are quite the same, so we quote each one individually. Size, access and the product the joint needs all make a difference, and we will explain the quote if you ask.
Why us?
- Quality sealants from Arbo and Everbuild
- We never seal over old sealant
- Over 20 years’ experience
- Fully insured
See what affects the cost and our reviews.
How the visit works
On the day, we look over the joints with you first, so you know exactly what we are doing. Surfaces next to the work are protected before any work starts. The work normally takes anything from a few hours to a full day, depending on how many windows. Outside jobs in New Lanark 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 is not affected.
- 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.
- We apply the mastic by hand and shape it.
- The surface is finished to suit the stone or brick.
Preparing for the visit
- Let us know if you’ve seen damp or leaks
- Mention if the joints have been sealed before
- Tell us about access, such as stairs, a lift or high-level joints
How to get a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is. When it suits you, send an email to info@mrmastic.co.uk.
Related advice
Surface by surface
Brick reveals
We rake out the old mastic and pack deep voids before the new mastic goes in.
Period and listed homes
Materials matter on listed and conservation-area homes. Like-for-like sand mastic is usually favoured.
Frames and glazing around New Lanark
Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and sound outside sealant is part of that. 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.
Homes close to New Lanark Church include some older properties, and the joint between an old wall and a newer frame is normally the first place rain gets in. If you look after a building such as Lanark Grammar School, its window and door frames need their mastic kept sound, just like a home’s.
New Lanark is about 1 mile south of Lanark, in South Lanarkshire. New Lanark gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a one-year guarantee. We cover 139 towns and villages across South Lanarkshire. You can also see our page for Glasgow, roughly 23 miles from New Lanark.
Work in ML11 is quoted and booked the same way as anywhere else. Streets in the area include Braxfield Road, New Lanark Road and Rosedale Street, and we cover them all. Nearby, we also carry out sand mastic in Lanark (1 mile north), Kirkfieldbank (1 mile north-west), Nemphlar (2 miles north-west), Cleghorn (2 miles north-east) and Cartland (2 miles north). We also work in nearby towns such as Hamilton (13 miles north-west), Blantyre (15 miles north-west), Larkhall (9 miles north-west), Carluke (5 miles north-west), Strathaven (11 miles west) and Bothwell (15 miles north-west).
What’s near New Lanark
Locally, jobs take us to homes and businesses close to Castlebank Park and The Wee Man's pub and the streets around them. The closest station to New Lanark is Lanark station, about 0.8 miles north-east. Nearby you’ll also find William Smellie Memorial Hospital (1 mile north) and New Lanark Visitor Centre (under half a mile south-east). Green spaces nearby include Lanark Loch and Black Hill.
For landlords and businesses
Letting agents and landlords in New Lanark can book us as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order before the next move-in.
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
How we quote for sand mastic
The quote reflects the job in front of us. We look at:
- Whether there’s mould to deal with
- How much old sealant there is and how hard it is to remove
- How many rooms, windows or areas are involved
- The type of sealant required
Instead of a standard rate, we price the job in front of us: the amount of work, the old material and the access. You’ll know the price before we begin.
What to tell us for a quote
You don’t need to know the technical terms. It helps if you can tell us:
- Pictures of the joints, sent by email
- Roughly how big the job is
- Where the property is
- Access, such as stairs, a lift or height
Every job is quoted individually, so start by telling us what you need. Simply drop us a line at info@mrmastic.co.uk and describe the job, and pictures are welcome.
DIY versus a professional finish
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.
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 we’re called out for in New Lanark
Age is the main cause. Sand mastic is a maintenance item like any pointing and how long it lasts depends on the weather it faces.
If you can see any of these, it’s time to have the joints looked at:
- Mastic round period door frames that has failed
- Draughts and rain around sash boxes
- Gaps between timber frames and stone or brick
- Modern sealant on a period surround
Letting a property close to Lanark station? Then older sash windows in a rental need their mastic kept sound to keep the weather out.
What your quote should include
- Whether you can choose the colour
- What insurance they hold
- What guarantee comes with the work
- What the quote includes, VAT included or not