South Lanarkshire · Scotland
Sand mastic for sash & case windows in Broughton, South Lanarkshire
Sand mastic across Broughton and nearby, with every bit of old sealant taken out first and a one-year guarantee.
- Wind and rain getting in round a sash window
- Mastic dropping out of the joint
- Gaps round a timber door in stone or brick
Broughton questions
Can you do sand mastic in Broughton?
Yes. Our work covers the whole of Scotland, and Broughton is part of that. Just send an email to info@mrmastic.co.uk with a few details of the job.
What guarantee comes with sand mastic in Broughton?
All our work, in Broughton and everywhere else, comes with a 12-month guarantee. We are also fully insured and ARBOMaster approved.
Is there any odour?
That depends on the sealant. Some products have a noticeable smell, others very little.
Will it make a mess?
Tidy work is part of the job. We protect what’s around the joints, and the area is left clean when we finish.
Can I choose the sealant colour?
Normally, yes. White, clear and grey are common, and other colours are available for many products, and we agree the colour with you before any work starts.
When will the new mastic be hard?
The surface skins quite quickly, then hardens over a longer period. Timing depends on the weather and the joint.
What information do you need?
A short description and the location, with photos by email if possible. We will ask anything else we need to know.
What exactly is sand mastic?
Sand mastic is a traditional material for pointing round windows and doors. It’s made with sand and a linseed-oil-based binder.
How we handle sand mastic in Broughton
For a listed home or one in a conservation area, ask your local planning authority whether consent is needed for work to windows. Like-for-like sand mastic is often the preferred finish. We work on period & listed homes, sash and case windows and tenement windows, and common reasons people get in touch are mastic round period door frames that has failed and gaps where the frame meets the masonry.
Older stone-built homes in Scotland often have sash and case or timber windows set in stone. The sealant has to suit the stone, which rules out acetoxy silicones that can mark or attack it.
Our work is backed for twelve months.
- Location
- Broughton (ML12)
- Wider area
- South Lanarkshire
- Cover
- A year, on every job
- Quote
- A clear quote up front
- info@mrmastic.co.uk
- Updated
- 26 October 2026
What we cannot put right
To be straight with you, there are a few things sealant won’t fix:
- Decisions on consent for listed homes
- Decayed frames that need repair
- Sashes that need overhauling
If you’re not sure, just email us at info@mrmastic.co.uk and we’ll give you a straight answer before booking.
Joints and surfaces we work on
- Sash and case windows
- Period & listed homes
- Brick reveals
- Timber door frames
- Stone surrounds
- Tenement windows
Looking after it afterwards
How long the joints last depends on use and care. We suggest:
- Check the mastic when you check the paintwork
- Avoid patching sand mastic with silicone
- Ask a joiner to look at soft timber first
- Keep sills and gutters clear so water drains away
Keep paint scrapers and sanders off the mastic when redecorating. Hard scraping can loosen it.
Crumbling mastic lets rain into the joint. It can soak into the frame and the surrounding masonry, so renewing it early is worth it.
Also in Broughton
What the job involves on each surface
Stone surrounds
We take care not to mark the stone when the old mastic comes out.
Tenement and terrace windows
Windows above ground floor need the right access. Let us know the floor and we will confirm access.
What happens if it’s left?
Cement-based fillers and modern sealants don’t always suit a period surround. Sand mastic is the like-for-like choice, which can matter on listed and conservation-area homes. When the nearest tradesperson is a drive away, it’s tempting to leave a small leak, but water through a failed joint keeps working away until it’s fixed.
What you pay reflects the work, not a rough estimate. That is why we ask about the job first and give you a clear quote before any work starts.
Why us?
- Neat joints and a tidy finish
- We never seal over old sealant
- Experience in homes, commercial sites and hotels
- Fully insured
See our cost guide or what customers say.
The process
On the day, we look over the joints with you first, so you know exactly what we are doing. Surfaces next to the work are protected before any work starts. The work usually takes anything from a few hours to a full day, depending on how many windows. Outdoor work around Broughton depends on the weather, as sealant needs a dry surface, so external jobs may need to move if the day turns wet. Work indoors isn’t affected.
- First, we look at the surrounds with you and agree what needs doing.
- We rake out the old mastic and clean the joint.
- We pack any deep gaps so the mastic sits at the right depth.
- 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
- Where the joints are inside, avoid wetting them before we arrive
- Tell us if parking is tricky
- Move anything stored near the joints
Get a quote
Need a quote? Please email us at info@mrmastic.co.uk with a few details. You will know what we plan to do, and what it will cost, before any work begins.
Advice
Do you need sand mastic in Broughton?
Timber frames move with the seasons. The movement cracks the mastic little by little.
Look out for these signs:
- Window mastic to renew ahead of painting
- Draughty sash windows at the surround
- Mastic worn away on windows facing the weather
- Old sand mastic that has cracked, crumbled or fallen out
In the older streets around Broughton Parish Church, the joint between an old wall and a newer frame is generally the first place rain gets in.
What your quote should include
- What product goes in the joint
- Whether VAT is included
- What insurance they hold
- What the cure time is
For landlords and businesses
Letting agents and landlords in Broughton can book us as well as householders. Resealing between tenancies is a simple way to keep a property in good order.
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance.
Broughton homes and the weather
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. Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and failed outside joints work against that.
In and around Broughton, as anywhere, good sand mastic starts with a clean, dry, properly prepared joint.
Broughton is about 17 miles south-west of Penicuik, in South Lanarkshire. Anywhere in ML12, we can carry out sand mastic at your property. Broughton is one of 139 towns and villages in South Lanarkshire where we work. Edinburgh is on our list too, around 24 miles away.
All of ML12 is covered for sand mastic, from the main roads to the quietest streets. Whether your property is on Woodilee and Hawdene or anywhere close by, we can help. Other places close to Broughton include Skirling (3 miles north-west), Candy Mill (4 miles north-west), Biggar (4 miles west), Kirkurd (5 miles north) and Elsrickle (5 miles north-west). Within a short drive, we also cover Lanark (15 miles west), Forth (15 miles north-west), Symington (7 miles west) and Carnwath (10 miles north-west).
Local landmarks in Broughton
Nearby you will also find Drumelzier Castle (1.9 miles south) and Kello Hospital (4.4 miles west). Green spaces nearby include Drumelzier Law.