South Lanarkshire · Scotland
Sand Mastic in Bothwell
Professional sand mastic in and around Bothwell, with old sealant always removed completely and a 12-month guarantee.
- Silicone on a period window that looks wrong
- Gaps between timber frames and stone or brick
- Weathered mastic on the most exposed windows
About our sand mastic in Bothwell
Our applicators renew the sand mastic around sash and case windows and doors in stone and brick. The old mastic is raked out, the joint is prepared and new mastic is shaped by hand. If you’re dealing with draughts and rain around sash boxes and mastic worn away on windows facing the weather, we can put it right.
Across smaller places in Scotland, homes range from stone and harled cottages to newer houses, many standing in the open. Wind-driven rain finds any gap around a frame or sill, so the mastic there works hard.
The work is covered for a year after we finish. If anything isn’t right with it, drop us a line at info@mrmastic.co.uk.
- Place
- Bothwell (G71)
- Wider area
- South Lanarkshire
- Cover
- A year, on every job
- Price
- A clear price before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026
What we’re called out for in Bothwell
Timber frames move with the seasons. That movement opens up the mastic joint over time.
Most people get in touch after spotting one of these:
- Weathered mastic on the most exposed windows
- Wind and rain getting in round a sash window
- Patchy fillers round a sash window
- Gaps between timber frames and stone or brick
If you live in an older home near Bothwell Evangelical Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
What to look for in a quote
- Whether VAT is included
- Whether you can choose the colour
- How long the guarantee is
- How the joint is cleaned and prepared
For landlords and businesses
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we’ll give you a quote.
Failed sealant is one of the commonest items on a check-out report. We can quote for more than one property at once.
Your questions about sand mastic in Bothwell
Do you cover Bothwell for sand mastic?
Yes. We work across all of Scotland, and Bothwell is part of that. You can send an email to info@mrmastic.co.uk and tell us what needs doing.
Can you help a landlord with a rental near Blantyre station?
Yes. We work for landlords and agents as well as householders. You can drop us a line at info@mrmastic.co.uk with the details for a clear quote.
Do I need to be at home?
Access is agreed with you when the job is booked. Indoors, that usually means someone at home.
Can you seal over the old sealant?
No. New silicone will not bond to old silicone, and anything trapped underneath, including mould and water, stays there. We remove it all first.
Will the old sealant be removed?
Yes. We cut out all the old sealant and clean the joint.
Do you have insurance?
Yes. We are fully insured.
What should I tell you?
A short description and the location. We’ll ask anything else we need to know.
Can I do it myself?
Some simple jobs can be done by a careful DIYer. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
Looking after it afterwards
No joint lasts for ever, but care makes a real difference. Our tips:
- Don’t run silicone over sand mastic
- Check with your local planning authority if your home is listed
- Clear gutters so water doesn’t pour onto the windows
- Take care around the mastic when scraping paint
Leave the new mastic unpainted, as traditional guidance advises. Ask us before any decorating around it.
Gaps round a sash box let in draughts and rain. The longer it’s left, the more the joint opens as more mastic falls out.
Nearby places to Bothwell
Also in Bothwell
When it is not the sealant
A few problems are outside what sealant work can do:
- Damaged stone surrounds
- Rotten sashes, sills or window boxes (a joiner’s job)
- Decisions on consent for listed homes
Not sure which it is? You can email us at info@mrmastic.co.uk and we will tell you honestly before booking.
What we seal
- Tenement windows
- Brick reveals
- Sash and case windows
- Stone surrounds
- Timber door frames
- Period & listed homes
The process
A visit follows a simple pattern: we check the joints, protect the area around them, do the work and clear up. It generally takes a few hours per window, depending on the condition of the joints. Around Bothwell, distance and access matter more than parking. Tell us how to find the property and how to reach the work.
- First, we look at the surrounds with you and agree what needs doing.
- We rake out the old mastic and clean the joint.
- 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.
Preparing for the visit
- Plan for the work area to be out of bounds to pets and children
- On commercial sites, let us know about site rules
- Mention if the joints have been sealed before
Get a quote
We don’t publish a price list. Instead, your job gets its own clear quote. To arrange one, email us at info@mrmastic.co.uk.
Read more
Should I try it myself first?
If you are set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
Bothwell homes and the weather
Many older homes in Scotland have sash and case windows, often pointed into the wall with traditional sand mastic. Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and sound outside sealant is part of that.
For site and facilities teams at buildings such as Uddingston Grammar School, the mastic around its windows and doors needs looking after like any other building’s. Rented homes near Blantyre station change hands often, and cracked sand mastic around sash windows lets in the draughts tenants complain about.
Bothwell is about 3 miles north of Hamilton, in South Lanarkshire. Wherever you are in the G71 postcode area, our applicators can take on sand mastic. 139 places in South Lanarkshire are on our list. You can also see our page for Glasgow, about 9 miles away.
All of G71 is covered for sand mastic. You will find streets such as Station Road, Main Street and Kirklands Crescent. You’ll find Bothwell on the B7071, which makes it straightforward to reach. We also cover the places around Bothwell: Uddingston (1 mile north), Tannochside (2 miles north), Viewpark (2 miles north), Bellshill (2 miles east) and Birkenshaw (2 miles north). Within a short drive, we also cover East Kilbride (6 miles south-west), Hamilton (3 miles south), Cambuslang (3 miles west), Larkhall (6 miles south-east), Carluke (10 miles south-east) and Rutherglen (6 miles west).
Around Bothwell
We work in homes and buildings around Marion Gilchrist Memorial Garden and Camphill Public House. For rail, the closest station is Blantyre station, roughly 0.9 miles south-west. A little further out are Drumsagad Castle (2.4 miles west) and David Livingstone Centre (0.6 miles south-west). Open spaces near Bothwell include Strathclyde Loch and Baron's Haugh RSPB Reserve.
What affects the cost of sand mastic
The price is agreed before any work begins. It’s based on:
- The type of sealant required
- Any mould that needs treating
- The size of the job
- When we can work, for business premises
The cost reflects the work involved, not guesswork. That’s why we ask a few questions first and agree the price before starting.
What we need to know
When you contact us, these details help:
- Any previous sealing or DIY work
- The problem you’ve noticed
- The address or postcode of the job
- The rough size of the job
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we’ll talk you through what we’d do. When it suits you, email us at info@mrmastic.co.uk.