South Lanarkshire · Scotland
Sand mastic for sash & case windows in Ferniegair, South Lanarkshire
Traditional burnt sand mastic around sash and case windows and doors in stone and brick in Ferniegair, with a one-year guarantee on every job. Call for a quick quote.
- Draughty sash windows at the surround
- Modern sealant on a period surround
- Gaps between timber frames and stone or brick
Sand mastic in Ferniegair
We renew sand mastic around sash windows and doors in stone and brick. The old mastic is raked out, and new mastic is applied and shaped by hand. Common call-outs are for silicone on a period window that looks wrong and tired mastic found when preparing windows for paint, on timber door frames, period & listed homes and tenement windows.
Older stone-built homes in Scotland often have sash and case or timber windows set in stone. Those suit a traditional sand mastic or a neutral-cure sealant, not an acetoxy silicone that can attack some stone.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we will sort it.
- Place
- Ferniegair (ML3)
- Region
- South Lanarkshire
- Guarantee
- 12 months on all our work
- Quote
- A clear quote up front
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Do you need sand mastic in Ferniegair?
Sand mastic slowly weathers. It hardens, cracks and starts to come away on the stone or timber.
Look out for any of the following:
- Old cement repairs round a window that have failed
- Gaps round a timber door in stone or brick
- Draughts and rain around sash boxes
- Weathered mastic on the most exposed windows
If you let a flat or house near Chatelherault station, cracked sand mastic around sash windows lets in the draughts tenants complain about.
Before booking anyone
- How long the guarantee is
- What happens if they find a problem under the old sealant
- Whether they’re fully insured
- How the colour is chosen
Why deal with it now?
Replacing sash windows is a big decision for a period home and on a listed home, consent may be needed. If the frames are sound, renewing the mastic deals with gaps and draughts at the surround. In a place like Ferniegair, small leaks are easy to put off, but water behind a failed seal does the most damage when nobody’s watching.
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you are unsure, drop us a line at info@mrmastic.co.uk for an honest opinion and a quote.
Why Ferniegair customers choose us
- Anti-fungal sanitary silicone in wet areas
- Rated 4.9 stars on Google
- 20+ years of sealant experience
- Neat joints and a tidy finish
Take a look at how sealant jobs are priced or what customers say.
Surface by surface
Timber door frames
Door frames get knocked and soaked and the mastic can crack early. We rake it out and renew it.
Period and listed homes
Sand mastic is the like-for-like choice for many period homes. On listed buildings, check with your planning authority first.
Should I try it myself first?
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Looking after it afterwards
To keep the joints looking good and working properly:
- Get any rot dealt with first
- Keep modern sealant off the mastic
- Keep sills and gutters clear so water drains away
- Check with your local planning authority if your home is listed
Do not touch or press the mastic while it hardens. It forms a skin fairly soon, but takes longer to harden fully.
Good mastic helps keep the frame dry. Once it fails, water can sit against the timber, which can lead to rot.
Frames and glazing around Ferniegair
Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and sound outside sealant is part of that. 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.
Schools such as Dalziel High School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s. For an older house near a landmark such as Ferniegair Mission Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Ferniegair is about 2 miles east of Hamilton, in South Lanarkshire. Ferniegair gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Our area takes in 139 places across South Lanarkshire, large and small. You can also see our page for Glasgow, roughly 12 miles from Ferniegair.
Jobs for sand mastic in ML3 works the same way as everywhere else we cover. That includes homes and businesses on Carlisle Road, Isabella Gardens and Riccarton Path. Neighbouring places we cover for sand mastic include Allanton (1 mile south-east), Barncluith (1 mile west), Earnock (2 miles south-west), Avongrove (2 miles south-west) and Meikle Earnock (2 miles south-west). Further out, we also cover East Kilbride (7 miles west), Cambuslang (6 miles north-west), Uddingston (5 miles north-west), Blantyre (4 miles north-west), Larkhall (3 miles south-east) and Carluke (7 miles east).
Local landmarks in Ferniegair
We work in homes and buildings around Duchess of Hamilton Park and the streets around them. Ferniegair has its own railway station: Chatelherault station. A little further out are Regent Shopping Centre (1.1 miles north-west) and University Hospital Wishaw (2.6 miles east). The countryside around Ferniegair includes Baron's Haugh RSPB Reserve and Strathclyde Loch.
What happens on the day
When we arrive, we start by going over the job with you, so you know exactly what we’re doing. We protect the surfaces around the joints before work begins. The work normally takes a few hours for a single window, longer for several. Around Ferniegair, 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 start by checking each surround and agreeing the joints to renew.
- Old, loose mastic is raked out and the joint cleaned.
- Deep voids are packed so the mastic is the right thickness.
- We mix the sand mastic and apply it by hand, shaping it to the joint.
- The mastic is finished to sit tidily against the stone or brick.
How to prepare
- Keep children and pets away from the work area
- On commercial sites, let us know about site rules
- Mention if the joints have been sealed before
Ask for a quote
Asking for a quote is easy: tell us what needs doing and where, and roughly how big it is. A few pictures by email make the job easier to understand.
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Ferniegair questions
Do you cover Ferniegair for sand mastic?
Yes, Ferniegair is within the area we cover. Our work covers the whole of Scotland. You can send an email to info@mrmastic.co.uk and tell us what needs doing, and we will give you a clear quote.
Is Ferniegair within the area you cover?
Yes, Ferniegair is covered. Our work covers the whole of Scotland, and smaller places are part of that. Longer journeys are simply planned in advance.
How long will you be here?
Typically it takes a few hours for a single window, longer for several. Bigger jobs take longer, and we will tell you how long to expect.
Can landlords and businesses book you?
Yes, often. Several properties can go on one quote.
Are you ARBOMaster approved?
Yes. We are an ARBOMaster approved applicator, which is run for the Arbo sealant brand.
I’m a tenant. Can you help?
Of course. Ask your landlord first, and we can send them the quote if that helps.
How do I get a quote for sand mastic in Ferniegair?
There’s no set price, as it depends on the job: how much there is, what’s there now, how we reach it and what it needs. We agree the price before any work begins.
Can you work on commercial sites?
Yes. We have worked for hotels, offices and other businesses and we’re fully insured.
What affects the quote in Ferniegair
We quote each job individually. These are the things that affect it:
- How much old sealant there is and how hard it is to remove
- Any mould that needs treating
- The number and length of the joints
- Working hours on commercial sites
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether the work is at height. We take all of that into account in your quote.
What to tell us for a quote
You don’t need to know the technical terms. Just tell us:
- Photos by email, if that’s easy
- If it’s domestic, commercial or a hotel
- How we’d reach the joints
- Roughly how big the job is
Call for a quick quote, or email us if that is easier. Describe what needs sealing and we’ll talk you through the work before giving you a price.