Inverclyde · Scotland
Sand mastic for sash & case windows in Ashton, Inverclyde
Professional sand mastic in and around Ashton, with old sealant always removed completely and a 12-month guarantee.
- Window mastic to renew ahead of painting
- Modern sealant on a period surround
- Cement or filler used on old window joints that has cracked
When to call us in Ashton
Paint, silicone or cement used over old mastic causes problems. They don’t suit the joint and we normally remove them.
Common reasons people contact us include:
- Patchy fillers round a sash window
- Window mastic to renew ahead of painting
- Mastic worn away on windows facing the weather
- Draughts and rain around sash boxes
Ardgowan House, about 2.8 miles south-west, is one of the historic houses in the wider area around Ashton, and older homes nearby need a sealant that suits their walls.
Questions to ask before booking
- Whether all the old sealant comes out first
- Who does the work, and how experienced they are
- Whether the sealant suits the joint
- What the quote includes, VAT included or not
Sand mastic for homes and businesses in Ashton
Traditional burnt sand mastic blends with stone and brick surrounds. It’s a good fit for period properties where a modern sealant bead would stand out. We work on sash and case windows, timber door frames and tenement windows, and common reasons people get in touch are weathered mastic on the most exposed windows and old sand mastic that has cracked, crumbled or fallen out.
In and around a place like Ashton, homes range from older stone-built cottages to newer houses. Exposed frames and sills take the full force of wind-driven rain, so the mastic there works hard.
Your job is guaranteed for a year, as with all our work.
- Where
- Ashton (PA19, PA16)
- Region
- Inverclyde
- Guarantee
- 12 months on all our work
- Quotes
- A clear price before we start
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Aftercare tips
After the cure time, these simple habits help:
- Check the mastic when you check the paintwork
- Go gently near the mastic when preparing windows
- Make sure water runs off the sill
- Keep modern sealant off the mastic
Don’t run silicone over the new mastic. If anything cracks, get it looked at rather than patching it.
An open joint round the box lets weather through. The longer it’s left, the more the joint opens.
Landlords, agents and businesses in Ashton
Hotels need rooms back in use, so the work can be planned room by room. We have worked in hotels as well as homes and businesses.
Housing providers, facilities teams and property managers book us too. We can quote a run of properties together, and we’re fully insured.
Frames and glazing around Ashton
Ashton is within about 1 mile of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That is hard on the mastic around older windows and doors, especially on the side facing the sea. Many older homes in Scotland have sash and case windows, often pointed into the wall with traditional sand mastic.
If you look after a building such as Gourock High School, larger buildings have plenty of frames, and the mastic around each one ages. For landlords with property near Gourock station, cracked sand mastic around sash windows lets in the draughts tenants complain about.
Ashton is about 2 miles west of Greenock, in Inverclyde. Every kind of property in Ashton can book us for sand mastic. The work is guaranteed for a year. Across Inverclyde, we cover 19 places, Ashton among them. There’s also a page for Glasgow, about 23 miles away.
All of PA19 and PA16 is within our area for sand mastic, from the main roads to the quietest streets. We cover properties on Fife Road, Golf Road and Banff Road and the roads around them. With the A770 close by, Ashton is easy for our applicators to reach. If you are just outside Ashton, we cover Midton (1 mile north-east), Gourock (1 mile north-east), Trumpethill (1 mile west), Braeside (1 mile south-east) and Branchton (1 mile south-east). We also work in nearby towns such as Port Glasgow (6 miles east), Cartsdyke (3 miles east), Kilmacolm (9 miles south-east), Mid Auchinleck (7 miles east), Inverkip (3 miles south-west) and Bogston (5 miles east).
Near you in Ashton
The nearest railway station is Gourock station, roughly 1 mile north-east of the centre. A little further out are Craigrownie Castle (3 miles north) and Inverclyde Royal Hospital (0.9 miles south-east). For a walk, there’s Lyle Hill and Loch Loskin.
When it isn’t the sealant
Before booking, it’s worth knowing the limits:
- Cracked or broken glass
- Planning or listed building consent (your local planning authority decides)
- Timber that has rotted
If in doubt, email us at info@mrmastic.co.uk and we’ll say what we think before you book.
Surfaces we seal
- Brick reveals
- Timber door frames
- Sash and case windows
- Period & listed homes
- Tenement windows
- Stone surrounds
Nearby places to Ashton
What else we do in Ashton
What happens on the day
We bring everything the job needs with us, so there’s nothing for you to buy. After a quick look at the joints together, we protect the area and start. It normally takes a few hours for a single window, longer for several. In smaller Scottish places, parking is generally less of an issue than access and distance. Tell us how to find the property and how to reach the work.
- Each surround is checked first.
- We rake out the old mastic and clean the joint.
- Large voids are packed out.
- We point the joint with sand mastic by hand.
- We finish the mastic to a tidy line.
How to prepare
- Tell us about any previous sealing or DIY attempts
- Clear the area around the work
- On commercial sites, let us know about site rules
Get a quote
It all starts with a short chat. Describe the problem, the location and the size of the job, and we will talk you through what we’d do. Whenever you’re ready, send an email to info@mrmastic.co.uk.
Related advice
How the job changes by surface
Tenement and terrace windows
Rows of sash windows on tenements and terraces often need renewing together. We can do one window or several.
Sash and case windows
The box of a sash and case window sits in the stone or brick opening. The gap round it is pointed with sand mastic.
Leave it or put it right?
Silicone might seem the quicker option, but on period stone or brick it often looks out of place. Sand mastic suits the building and blends with the stone or brick. 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.
What you pay reflects the work, not guesswork. That is why we ask a few questions first and agree the price before starting.
Why choose Mr Mastic in Ashton
- A 12-month guarantee on all work
- We never seal over old sealant
- ARBOMaster approved applicator
- Trusted Arbo and Everbuild sealants
Take a look at our cost guide and customer reviews.
Your questions about sand mastic in Ashton
Can you help a landlord with a rental near Gourock station?
Yes, rental work is part of what we do. Just drop us a line at info@mrmastic.co.uk and tell us about the property, and we will give you a clear price.
Does the coastal weather in Ashton affect outside sealant?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. Choosing the right sealant for the frame and wall, laid at the right depth, helps it last.
Do you hold any approvals?
Yes. We hold ARBOMaster approved applicator status, and we are fully insured.
How long will you be here?
Typically it takes anything from a few hours to a full day, depending on how many windows. Larger jobs naturally take longer.
What guarantee comes with the work?
All our work has a one-year guarantee, and we are fully insured.
Do I need to be at home?
For indoor joints, yes, someone needs to let us in. Once we’ve agreed the job, you don’t need to watch us work.
What do you put in the joint?
Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference.
Can new sealant go over the old?
No, because it fails. We remove every bit of old sealant first, so the new sealant bonds properly.