Aberdeenshire · Scotland
Sand mastic for sash & case windows in Montrose, Aberdeenshire
Traditional burnt sand mastic around sash and case windows and doors in stone and brick in Montrose, with a 12-month guarantee on every job. Ask us for a quote.
- Weathered mastic on the most exposed windows
- Patchy fillers round a sash window
- Modern sealant on a period surround
Sand mastic for homes and businesses in Montrose
Burnt sand mastic is a traditional material that sits naturally against stone and brick. It’s a good fit for period properties where a modern sealant bead would stand out. We work on timber door frames, sash and case windows and period & listed homes, and the jobs we see most are cracked mastic round a front door frame and a silicone bead on a sash window that spoils the look.
In a town like Montrose, stone-built older streets normally sit alongside harled houses and newer estates, so windows range from sash and case in older buildings to uPVC on newer homes. Each needs the right sealant against the right wall.
Whatever the size of the job, it’s backed by our one-year guarantee in Montrose and across Aberdeenshire.

- Location
- Montrose (DD10)
- Wider area
- Aberdeenshire
- Guarantee
- One year on every job
- Price
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Leave it or put it right?
If you’re redecorating, renew the mastic first. Painting over failed mastic does not seal it, and the new mastic is traditionally left unpainted. Private landlords in a town like Montrose must keep homes wind and watertight under the Repairing Standard. Replacing failed sealant early is simpler than dealing with a complaint.
There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote.
Why Montrose customers choose us
- Sanitary silicone with an anti-fungal additive in wet areas
- Any old sealant cut out fully, not covered over
- Neat joints and a tidy finish
- A 12-month guarantee on all work
Read our cost guide and customer reviews.
What else we do in Montrose
Montrose homes and the weather
Montrose is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on the mastic around older windows and doors, which can dry out and crack sooner where a building faces the weather. 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.
If you look after a building such as Montrose Academy, larger buildings have plenty of frames, and the mastic around each one ages. Letting a property close to Montrose station? Then older sash windows in a rental need their mastic kept sound to keep the weather out.
Montrose is about 26 miles north-east of Dundee, in Aberdeenshire. Wherever you are in the DD10 postcode area, we cover sand mastic for homes and businesses. Our Aberdeenshire coverage runs to 161 places, and Montrose is one of them. We also work in Dundee, around 26 miles away.
Here we cover the DD10 postcode area for sand mastic. If you need sand mastic at a property on Market Street, High Street and Murray Lane or a nearby road, our applicators can take on the job. Being close to the A92 and A935, Montrose is simple for us to get to for sand mastic. We also cover the places around Montrose: Ferryden (1 mile south), Kirkton of Craig (2 miles south), Hillside (2 miles north), Craigo (4 miles north-west) and St Cyrus (4 miles north-east). Within a short drive, we also cover Laurencekirk (8 miles north), Inverbervie (11 miles north-east) and Johnshaven (8 miles north-east). Montrose is among the bigger towns we cover in Aberdeenshire.
Local landmarks in Montrose
In Montrose, that means homes and buildings near Royal Arch Bar and the streets around them. Montrose has its own railway station: Montrose station. A little further out are William Lamb Sculpture Studio (less than half a mile south) and Montrose Castle (0.5 miles south-west). Green spaces nearby include Duns Dish and Montrose Basin.
Common questions in Montrose
Do you cover Montrose for sand mastic?
Yes. Our work covers the whole of Scotland, and Montrose is part of that. Just email us at info@mrmastic.co.uk with a few details of the job.
I let a flat near Montrose station. Can you help?
Yes, rental work is part of what we do. Just email us at info@mrmastic.co.uk and tell us about the property, and we’ll send you a clear quote.
Where is Mr Mastic based?
Mr Mastic is based in Crawley. We cover Montrose and the rest of Aberdeenshire, along with the rest of our area.
Do you offer different sealant colours?
Generally, yes. White, clear and grey are common, and other colours are available for many products, and we agree the colour with you before we start.
Can I do it myself?
You can, for simple jobs. Preparation is everything: all the old sealant out, and a clean, dry joint. If it does not work out, we can redo it.
Are you insured?
Yes, we are fully insured.
Can sand mastic be painted?
Traditional guidance is not to paint over sand mastic. If you are redecorating the window, ask us first and we’ll talk you through it.
Can old silicone round a sash window be swapped for sand mastic?
In most cases. The silicone is cut out and the joint cleaned, then point it with sand mastic.
What we do, step by step
At the end, we look at the finished work together. The visit itself normally takes anything from a few hours to a full day, depending on how many windows, depending on the amount of work. In a Scottish town like Montrose, parking is generally straightforward, though older centres can be tighter. For flats, mention the shared stair or door entry system.
- 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.
Getting ready for the visit
- Where the joints are inside, avoid wetting them before we arrive
- Tell us about access, such as stairs, a lift or high-level joints
- Mention if the joints have been sealed before
How to get a quote
For sand mastic in Montrose, drop us a line at info@mrmastic.co.uk. A short description of the job and where it is helps us quote, and we will agree the price before any work begins.
Related advice
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.
If you’re set on DIY, put the effort into 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.
How the job changes by surface
Brick reveals
Sand mastic is also used where timber frames meet brick. It gives a traditional finish.
Stone surrounds
The stone is treated with care while raking out the old mastic.
Work for landlords, hotels and businesses
Whether it’s one flat or a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
We work for landlords and letting agents as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order before the next move-in.
When something else is needed
We’d rather tell you now than do work that won’t last, so these are the limits:
- Whether work needs listed building consent
- Timber that has rotted
- Damaged stone surrounds
Not sure which it is? You can email us at info@mrmastic.co.uk and we’ll tell you honestly.
Where we work in Montrose
- Period & listed homes
- Stone surrounds
- Sash and case windows
- Brick reveals
- Timber door frames
- Tenement windows
Quotes for sand mastic in Montrose
Every job gets its own quote. This is what makes a difference:
- When we can work, for business premises
- The number of rooms or windows
- The size of the job
- Whether the work is at height
Commercial jobs are quoted on the same basis as homes: the amount of work, how we reach it and what it needs. Ask us for a quote and we’ll go through it with you.
What to tell us for a quote
There’s no need for technical detail. It helps if you can tell us:
- The type of property
- Photos by email, if that’s easy
- Roughly how big the job is
- Access, such as stairs, a lift or height
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is.
