North Ayrshire · Scotland
Sand mastic for sash & case windows in Dalry, North Ayrshire
Sand mastic in Dalry from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Draughts and rain around sash boxes
- Weathered mastic on the most exposed windows
- Old sand mastic that has cracked, crumbled or fallen out
Sand mastic in Dalry
If your home is listed or in a conservation area, check with your local planning authority whether consent is needed for work to windows. Like-for-like sand mastic is often the preferred finish. Typical jobs include mastic round period door frames that has failed and draughty sash windows at the surround, on period & listed homes, sash and case windows and timber door frames.
In and around a place like Dalry, homes range from older stone-built cottages to newer houses. Exposed frames and sills take the full force of wind-driven rain.
Whatever the size of the job, it’s backed by our one-year guarantee in Dalry and across North Ayrshire.
- Location
- Dalry (KA24)
- Wider area
- North Ayrshire
- Guarantee
- A year, on every job
- Price
- Quoted before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Should I try it myself first?
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.
If you’ve already had a go yourself, that is fine. We remove it and do the joint properly, so tell us about it when you ask for a quote.
Why act early in Dalry
Draughts round a sash window aren’t always the sashes. Gaps between the frame and the wall can be just as bad and new mastic seals them. Exposed walls in smaller Scottish places take a lot of wind and rain, and once water gets behind a failed joint, damp in stone or harled walls is slow to dry out.
Instead of a standard rate, we look at what your job involves: the amount of work, the old material and the access. The price is agreed before we begin.
Why Dalry clients choose us
- Anti-fungal sanitary silicone in wet areas
- Every job guaranteed for a year
- 180+ five-star Google reviews
- Fully insured
Take a look at how sealant jobs are priced and customer reviews.
For landlords and businesses
We work for landlords and agents as well as householders. Sealant work between tenants is a simple way to keep a property in good order.
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we will give you a quote.
How it works
We keep the work tidy and contained to the joints we’re treating. Expect the work to take anything from a few hours to a full day, depending on how many windows. Around Dalry, distance and access matter more than parking. Tell us how to find the property and how to reach the work, and the visit is planned around that.
- 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.
How to prepare
- Clear items away from the joints we’re working on
- For business premises, tell us about site rules or sign-in
- Tell us if parking is tricky
Ask for a quote
Every job is quoted individually. Just email us at info@mrmastic.co.uk with the details, and pictures are welcome.
Advice
When to call us in Dalry
Previous repairs in cement or silicone often trap water or crack away. They do not move with the timber and we normally remove them.
Signs it’s time to call us include:
- Old sand mastic that has cracked, crumbled or fallen out
- Gaps where the frame meets the masonry
- Mastic round period door frames that has failed
- Mastic worn away on windows facing the weather
In the older streets around St Margaret's Church, the joint between an old wall and a newer frame is normally the first place rain gets in.
Comparing quotes
- Whether the sealant suits the joint
- Who turns up on the day
- How the surfaces are prepared before sealing
- Which colour the sealant will be
How the job changes by surface
Tenement and terrace windows
Upper-floor windows need access planning. Let us know the floor and we will confirm access.
Stone surrounds
Old stone surrounds are often uneven, so the gap is not the same all the way round. We shape it by hand to follow the stone.
Frames and glazing around Dalry
Sash and case windows are common in older Scottish homes, and the joint between the box frame and the stone or render is traditionally pointed with sand mastic. With historic houses such as Montgreenan (about 4.4 miles south-east) nearby, there’s older building stock in the area around Dalry 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.
If you let a flat or house near Dalry station, cracked sand mastic around sash windows lets in the draughts tenants complain about.
Dalry is about 4 miles north of Kilwinning, in North Ayrshire. From the centre of Dalry to the outskirts, sand mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Across North Ayrshire, we cover 53 places, Dalry among them. You can also see our page for Glasgow, roughly 20 miles from Dalry.
Here we cover the KA24 postcode area for sand mastic. We cover properties on Main Street, Roche Way and Vennel Street and the roads around them. Nearby, we also carry out sand mastic in Drakemyre (1 mile north), Meikle Auchengree (3 miles north-east), Glengarnock (3 miles north-east), Longbar (3 miles north-east) and Kilbirnie (3 miles north-east). We also work in nearby towns such as Irvine (7 miles south-east), Saltcoats (5 miles south-west), Largs (8 miles north-west), Ardrossan (5 miles south-west), Stevenston (5 miles south) and West Kilbride (5 miles west).
Local landmarks in Dalry
In Dalry, that means homes and buildings near The Auld Hoose Bar and Dalry. For rail, the closest station is Dalry station, about 0.5 miles east of the centre. A little further out are Dalgarven Mill Museum of Country Life and Costume (2.2 miles south) and Monk Castle (1.2 miles south). The countryside around Dalry includes Stevenston Loch and Law Hill.
How to look after the new joints
After the cure time, these simple habits help:
- Plan mastic work ahead of painting
- Clear gutters so water doesn’t pour onto the windows
- Don’t run silicone over sand mastic
- Leave the new mastic unpainted
Look at the mastic when you look over the windows. Small cracks are easier to deal with early.
An open joint round the box lets weather through. The longer it’s left, the more the joint opens.
Dalry questions
Do you cover smaller places like Dalry?
Yes. Dalry is within the area we cover, which takes in towns, villages and rural addresses. We work across all of Scotland. Let us know about access, parking and anything unusual about getting there when you book.
Do you work for landlords with property near Dalry station?
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 give you a clear quote.
Do you remove the old sealant?
Yes, every time. New silicone does not stick to old silicone, so the joint is cleaned back first.
How long does the job take?
A typical job takes a few hours for a single window, longer for several. Your quote will say how long we expect yours to take.
Is it possible to paint over sand mastic?
It’s traditionally left unpainted, which is what traditional guidance recommends. Ask us before decorating.
Do you work for hotels and businesses?
Yes. We work in offices, washrooms, hotels and other commercial premises. We can talk about working times when we quote.
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.
Which is right for my windows, sand mastic or modern sealant?
We’ll help you decide. Sand mastic suits many period homes and newer frames suit modern sealant.