Scottish Borders · Scotland
Sand mastic for sash & case windows in Maxton, Scottish Borders
Sand mastic across Maxton and nearby, with every bit of old sealant taken out first and a one-year guarantee.
- Patchy fillers round a sash window
- Gaps where the frame meets the masonry
- Crumbling sand mastic round a window
Work for landlords, hotels and businesses
We work for letting agents and landlords as well as householders. Sealant work between tenants is a simple way to keep a property in good order.
In hotels, rooms out of use cost money, so we plan the work room by room. Hotel work is part of what we do, alongside homes and businesses.
Sand mastic in Maxton, done properly
Our applicators renew the sand mastic around sash and case windows and doors set in stone or brick. Out comes the old, loose mastic, the joint is prepared and new mastic is shaped by hand. If you have a silicone bead on a sash window that spoils the look and mastic round period door frames that has failed, we can help, on brick reveals, timber door frames and sash and case windows alike.
In and around a place like Maxton, homes range from older stone-built cottages to newer houses. Wind-driven rain finds any gap around a frame or sill.
There’s a 12-month guarantee on every job, whatever its size.
- Location
- Maxton (TD6)
- Region
- Scottish Borders
- Guarantee
- One year on every job
- Quotes
- Quoted before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Maxton questions
Is there a guarantee on sand mastic in Maxton?
All our work, in Maxton and everywhere else, comes with a 12-month guarantee. We are also fully insured and ARBOMaster approved.
Will you come out to Maxton?
Yes, Maxton is covered. We work across all of Scotland, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
How long does sand mastic take to harden?
It takes a while. It skins first and hardens fully later and we’ll give you an idea for your job.
Will the old sealant be removed?
Yes, every time. New silicone doesn’t stick to old silicone, so any old material comes out before anything new goes in.
Is it possible to paint over sand mastic?
Traditional guidance is not to paint over sand mastic. If you’re redecorating the window, ask us first and we’ll advise.
Can you match the sealant colour?
We’ll suggest a colour to suit the surroundings. The choice depends on the product the joint needs.
Do you do commercial work?
Yes. We’ve worked for hotels, offices and other businesses and we are fully insured.
Can you seal over the old sealant?
No. Fresh sealant doesn’t stick to old sealant, and it traps any mould or water underneath. We remove it all first.
Quotes for sand mastic in Maxton
Your quote is based on your job. We take into account:
- Any mould that needs treating
- The amount of work
- Working hours on commercial sites
- The number of rooms or windows
What it costs depends on the size of the job, how hard the old material is to remove and access to the work. You’ll have a clear quote before any work starts.
What to tell us for a quote
When you contact us, these details help:
- A few photos by email, if you can
- How we’d reach the joints
- Roughly how big the job is
- If someone has resealed it before
There’s no standard price list. Instead, your job gets its own clear quote. To get started, send an email to info@mrmastic.co.uk.
DIY sealant or a professional job?
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.
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
Other services in Maxton
Looking after it afterwards
No joint lasts for ever, but care makes a real difference. Our tips:
- Look over the window mastic once a year
- Find out about consent before window work on a listed home
- Renew mastic before redecorating the windows
- Avoid heavy scraping on the mastic joint
Leave the new mastic alone while it firms up. It forms a skin fairly soon but needs longer to fully harden.
Small cracks are a sign the mastic is ageing. It’s easier to renew it before it drops out.
Why deal with it now?
An open joint round the frame lets weather in. Water can get to the frame and the masonry, so dealing with it now protects both. Around Maxton, 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, any mould to treat, and whether we need extra access for height. We take all of that into account in your quote.
Why choose Mr Mastic in Maxton
- Anti-fungal sanitary silicone in wet areas
- A 12-month guarantee on all work
- Experience in homes, commercial sites and hotels
- We never seal over old sealant
Read our cost guide or our reviews.
Honest limits
Honest advice matters more to us than a booking, so here’s what sealant cannot fix:
- Damaged stone surrounds
- Rotten sashes, sills or window boxes (a joiner’s job)
- Whether work needs listed building consent
If you’re not sure, just send an email to info@mrmastic.co.uk and we will give you a straight answer.
Surfaces we seal
- Period & listed homes
- Brick reveals
- Timber door frames
- Stone surrounds
- Tenement windows
- Sash and case windows
Frames and glazing around Maxton
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. Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and sound outside sealant is part of that.
Homes close to Maxton Kirk include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. Around Maxton, as everywhere, sand mastic is only as good as the preparation behind it.
Maxton is about 8 miles south-east of Galashiels, in the Scottish Borders. We provide sand mastic to homes and businesses in Maxton and the surrounding area. Maxton is one of 89 towns and villages in the Scottish Borders we cover for sand mastic. You can also see our page for Edinburgh, roughly 35 miles from Maxton.
Jobs for sand mastic in TD6 is quoted and booked the same way as anywhere else. We also cover Greycrook (1 mile west), St Boswells (1 mile north-west), Newtown St Boswells (3 miles north-west), Bowden (4 miles west) and Ancrum (4 miles south). Within a short drive, we also cover Galashiels (8 miles north-west), Hawick (12 miles south-west), Kelso (8 miles east), Selkirk (9 miles west), Jedburgh (6 miles south-east) and Wilton (12 miles south-west).
Around Maxton
Well-known places in the area include Dingleton Hospital (4.8 miles north-west) and Castle Holydean (4.7 miles west). The countryside around Maxton includes Bemersyde Moss and Peniel Heugh.
What we do, step by step
We keep the work tidy and contained to the area we’re working on, so you can carry on as normal. The job generally takes a few hours for a single window, longer for several, and we explain the cure time before we leave. Outside jobs in Maxton need a dry day, because sealant will not bond to a wet joint, so external jobs may need to move if the day turns wet. Work indoors isn’t affected.
- We look at the surrounds with you and agree the joints to renew.
- We remove the old, loose mastic.
- Deep gaps are packed so the mastic sits at the right depth.
- We apply the mastic by hand and shape it.
- The surface is finished to suit the stone or brick.
How to prepare
- Where the joints are inside, avoid wetting them before we arrive
- Mention any tricky access
- Let us know about earlier repairs to the joints
Getting a quote
Getting a quote is simple: let us know what needs doing and where and its rough size. A few photos by email make the job easier to understand.