East Ayrshire · Scotland
Sand mastic for sash & case windows in New Cumnock, East Ayrshire
We cover New Cumnock for traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old sealant removed completely, joints prepared properly and a one-year guarantee.
- Open joints round the window box
- Wind and rain getting in round a sash window
- Crumbling sand mastic round a window
Sand mastic in New Cumnock
We renew sand mastic around sash windows and doors in stone and brick. The old mastic is raked out, the joint is prepared and new mastic is shaped by hand. We work on tenement windows, period & listed homes and stone surrounds, and common reasons people get in touch are mastic that needs renewing before redecorating and old sand mastic that has cracked, crumbled or fallen out.
Outdoor sealant needs a dry surface, so window work around New Cumnock is planned around the weather. Let us know about access to every frame, including any upstairs.
All of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.
- Place
- New Cumnock (KA18)
- Wider area
- East Ayrshire
- Guarantee
- 12 months on all our work
- Price
- Quoted before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026

Signs you need sand mastic in New Cumnock
Water gets into small cracks in the mastic and pushes it out. Exposed elevations normally fail first.
Keep an eye out for these signs:
- Cement or filler used on old window joints that has cracked
- Tired mastic found when preparing windows for paint
- Gaps between timber frames and stone or brick
- Old sand mastic that has cracked, crumbled or fallen out
For an older house near a landmark such as Martyrs Parish Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Questions to ask before you book
- How much experience the applicator has
- Are they insured?
- How hidden problems are handled
- Whether they seal over old material or remove it
How the job changes by surface
Period and listed homes
On a listed home or in a conservation area, the right material matters. Sand mastic is often the preferred finish.
Brick reveals
Gaps between frame and brick let in rain and draughts. Renewing the mastic closes it.
Other services in New Cumnock
New Cumnock homes and the weather
New Cumnock is in the west of Scotland, which is wetter than the east, so there’s plenty of rain for the mastic around older windows and doors to keep out. Many older homes in Scotland have sash and case windows, often pointed into the wall with traditional sand mastic.
Letting a property close to New Cumnock station? Then any sash windows need sound mastic to keep draughts and rain out.
New Cumnock is about 18 miles east of Ayr, in East Ayrshire. For sand mastic in and around New Cumnock, please drop us a line at info@mrmastic.co.uk for a quick quote. We are based in Crawley and cover East Ayrshire, New Cumnock included. Our area takes in 53 places across East Ayrshire. We also work in Glasgow, around 32 miles away.
Every address in KA18 is within our area for sand mastic. Local streets include Dalhanna Drive, Redree Place and Loch Browan Crescent, all of which we cover. Being close to the A76 and B741, New Cumnock is simple for us to get to for sand mastic. We also cover Mansfield (1 mile north), Pathhead (1 mile north), Bankglen (1 mile west), Craigens (4 miles north-west) and Netherthird (5 miles north-west). Within a short drive, we also cover Cumnock (5 miles north-west), Mauchline (12 miles north-west), Auchinleck (7 miles north-west), Catrine (10 miles north-west), Muirkirk (10 miles north-east) and Tarbolton (15 miles north-west).
Around New Cumnock
The closest station to New Cumnock is New Cumnock station, roughly 0.7 miles north. Well-known places in the area include Cumnock Castle (0.5 miles north) and East Ayrshire Community Hospital (5.5 miles north-west). Green spaces nearby include Blackcraig Hill and Loch o' th' Lowes.
FAQs for New Cumnock
Do you cover smaller places like New Cumnock?
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 New Cumnock station?
Yes, we work for landlords and letting agents. You can drop us a line at info@mrmastic.co.uk with the address and a few details, and we’ll give you a fixed price before we start.
Does someone need to be in?
If the work is inside, we need someone to let us in. After that, you can carry on with your day.
Can you replace silicone on a period window with sand mastic?
Yes. We remove the silicone and clean the joint, then point it with sand mastic.
What’s sand mastic made of?
It’s the traditional filler for the joint round timber windows and doors. It’s made with sand and a linseed-oil-based binder.
Will the old sealant be removed?
Yes. We cut out all the old sealant and clean the joint before resealing.
Are you an approved applicator?
Yes. Mr Mastic is an ARBOMaster approved applicator, and we’re fully insured.
Which products do you use?
Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference, and we’ll explain our choice.
Why act early in New Cumnock
A silicone bead can be quicker, but it can look wrong on a period surround. Sand mastic is the traditional material and finishes neatly against the masonry. 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.
Leaving a failed joint normally makes the job bigger, not smaller. If you are not sure whether it needs doing, email us at info@mrmastic.co.uk for an honest opinion and a quote.
What you get with us
- Sanitary silicone with an anti-fungal additive in wet areas
- Quality sealants from Arbo and Everbuild
- Experience in homes, commercial sites and hotels
- Tidy, careful work
Take a look at what affects the cost and customer reviews.
What happens on the day
Every visit runs the same way: we look at the joints together, mask and protect the surrounding surfaces, carry out the job and clear up. It normally takes a few hours per window, depending on the condition of the joints. For a place like New Cumnock, longer drives are planned in advance. Tell us about tracks, gates, a ferry crossing or anything unusual about getting there.
- We check each window surround and the condition of the joint.
- We rake out the old mastic and clean the joint.
- We fill deep gaps so the new mastic isn’t too thick.
- New sand mastic is applied and shaped by hand.
- We finish the mastic to a tidy line.
Preparing for the visit
- Where the joints are inside, avoid wetting them before we arrive
- Clear items away from the joints we’re working on
- Tell us if parking is tricky
How to get a quote
Asking for a quote is easy: tell us what needs doing and where, and roughly how big it is. A few photos by email make the job easier to understand.
Advice
Landlord and commercial work in New Cumnock
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. Several properties can be quoted together.
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.
When it is not the sealant
Some problems need a builder, plumber or other trade rather than us:
- Decayed frames that need repair
- Sashes that rattle, stick or won’t open
- Broken panes
If you are not sure, just email us at info@mrmastic.co.uk and we will give you a straight answer before booking.
Surfaces we seal
- Sash and case windows
- Tenement windows
- Period & listed homes
- Brick reveals
- Stone surrounds
- Timber door frames
What affects the quote in New Cumnock
Your quote is based on your job. We take into account:
- The size of the job
- How many rooms, windows or areas are involved
- Mould in or behind the old joints
- Any working-time requirements on site
What you pay reflects the work, not guesswork. That’s why we ask about the job first.
Helping us quote
To make quoting easier, let us know:
- The problem you’ve noticed
- The type of property
- How many joints, rooms or windows are involved
- Any access issues, like height or stairs
For sand mastic in New Cumnock, drop us a line at info@mrmastic.co.uk. Tell us what the problem is and where, and we will agree the price before any work begins.
