North Ayrshire · Scotland
Sand mastic for sash & case windows in Greenhills, North Ayrshire
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homes and businesses in Greenhills and across North Ayrshire. Fully insured, ARBOMaster approved and guaranteed for a year.
- Gaps where the frame meets the masonry
- Draughts and rain around sash boxes
- Tired mastic found when preparing windows for paint
Sand mastic in Greenhills
Sand mastic does not last for ever, leaving gaps round the window. We rake it out and renew it so the surround looks right again. Typical jobs include old cement repairs round a window that have failed and mastic dropping out of the joint, on brick reveals, stone surrounds and sash and case windows.
Mastic can only go onto a dry joint, so outside work in Greenhills depends on the weather. Let us know about access to every frame, including any upstairs.
A one-year guarantee comes with the work, just as it does everywhere we cover.
- Location
- Greenhills (KA15)
- Wider area
- North Ayrshire
- Cover
- A year, on every job
- Quotes
- A clear price before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Your questions about sand mastic in Greenhills
Is Greenhills within the area you cover?
Yes, Greenhills is covered. We work across all of Scotland, and smaller places are part of that. Longer journeys are simply planned in advance.
Can you do sand mastic in Greenhills?
Yes, Greenhills is within the area we cover. Our work covers the whole of Scotland. Just drop us a line at info@mrmastic.co.uk with a few details of the job.
Will it make a mess?
No. We protect the surfaces around the joints, and we tidy up before we go.
Can I do it myself?
That depends on the joint. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional, while a short indoor joint may be within reach.
What information do you need?
Only a few details: the address or postcode, what’s wrong and any access issues. Then email us at info@mrmastic.co.uk.
Can old silicone round a sash window be swapped for sand mastic?
Yes. We remove the silicone and clean the joint, then point it with sand mastic.
Will the old sealant be removed?
Yes. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.
Can I choose the sealant colour?
Yes. White, clear and grey are common, and other colours are available, and we will agree it with you first.
The process
Once we’re on site, we check the joints match what you told us. If anything is different, we explain it before carrying on. After that, the work takes anything from a few hours to a full day, depending on how many windows. For a place like Greenhills, longer drives are planned in advance. Mention tracks, gates, ferries or anything else about the route.
- We start by checking each surround and agreeing the joints to renew.
- The loose and crumbling mastic is raked out and the joint cleaned.
- Large voids are packed out first, so the mastic is not too thick.
- The mastic is mixed, pressed into the joint by hand and shaped.
- The finish is dressed so it sits neatly against the stone or brick.
Before we arrive
- For business premises, tell us about site rules or sign-in
- Let us know about stairs, lifts or work at height
- Keep pets and children clear of the area while we work
Get a quote
We quote each job on its own, so start by telling us what you need. Just email us at info@mrmastic.co.uk with the details and send photos if you have them.
Read more
How we quote for sand mastic
Every job gets its own quote. This is what makes a difference:
- How many rooms, windows or areas are involved
- Any working-time requirements on site
- The old material and how stubborn it is
- Which sealant suits the joint
Doing several joints on one visit is generally more efficient than separate visits, so it’s worth mentioning everything you’d like done. We’ll send you a clear quote for the lot.
What we need to know
Photos by email are helpful but not essential. Please mention:
- If someone has resealed it before
- Any access issues, like height or stairs
- If it’s domestic, commercial or a hotel
- Where the property is
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and email pictures if that is easy.
When it is not the sealant
In fairness, some problems need a different trade:
- Cracked or broken glass
- Sashes that need overhauling
- Crumbling stone or brickwork round the window
If in doubt, send an email to info@mrmastic.co.uk and we’ll say what we think.
Joints and surfaces we work on
- Sash and case windows
- Timber door frames
- Stone surrounds
- Period & listed homes
- Brick reveals
- Tenement windows
Why it’s worth doing now in Greenhills
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. In a place like Greenhills, small leaks are easy to put off, but water through a failed joint keeps working away until it’s fixed.
The cost depends on the size of the job, how hard the old material is to remove and access to the work. We give a clear quote before we start, so you know where you stand.
Why us?
- Homes, businesses and hotels
- More than 20 years in sealant work
- 4.9 on Google from 180+ five-star reviews
- Old sealant always removed completely
Take a look at our cost guide and our reviews.
Do you need sand mastic in Greenhills?
Previous repairs in cement or silicone often trap water or crack away. They don’t move with the timber and we normally remove them.
Keep an eye out for any of the following:
- Draughts and rain around sash boxes
- Failed mastic on an exposed elevation
- Mastic that needs renewing before redecorating
- Gaps where the frame meets the masonry
Rented homes near Dunlop station change hands often, and older sash windows in a rental need their mastic kept sound to keep the weather out.
Questions to ask before you book
- Which sealant they’ll use, and why
- Whether you can choose the colour
- The length of the guarantee
- When the joint can take water or movement
DIY versus a professional finish
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.
The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.
What else we do in Greenhills
Landlords, agents and businesses in Greenhills
We also work for property managers and facilities teams. We can quote a run of properties together.
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we’ll quote.
What sand mastic looks like in Greenhills
Greenhills 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. Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and sound outside sealant is part of that.
Historic houses such as Montgreenan, about 4.4 miles south-west, show how far back building around Greenhills goes.
Greenhills is about 4 miles north-west of Stewarton, in North Ayrshire. Greenhills gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a one-year guarantee. Across North Ayrshire, we cover 53 places, Greenhills among them. Our Glasgow page covers work nearby, about 15 miles away.
Work in KA15 works the same way as everywhere else we cover. That includes homes and businesses on Dunlop Road and Barrmill Road. If you are just outside Greenhills, we cover Barrmill (1 mile north-west), Burnhouse (1 mile south-east), Gateside (2 miles north-west), Dunlop (2 miles east) and Beith (3 miles north-west). Further out, we also cover Irvine (8 miles south), Kilwinning (6 miles south-west), Saltcoats (9 miles south-west), Largs (12 miles north-west), Ardrossan (10 miles south-west) and Stevenston (8 miles south-west).
Near you in Greenhills
The closest station to Greenhills is Dunlop station, about 2.4 miles east of the centre. A little further out are Barony and Castle of Giffen (less than half a mile east). Green spaces nearby include Dunlop Hill and Blae Loch.