Midlothian · Scotland
Sand mastic for sash & case windows in Millerhill, Midlothian
We cover Millerhill for traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old sealant removed completely, joints prepared properly.
- Wind and rain getting in round a sash window
- Mastic that needs renewing before redecorating
- Patchy fillers round a sash window
About our sand mastic in Millerhill
Sand mastic has long been used to fill the joint between timber frames and masonry. It’s a mix of sand and a linseed-oil-based binder, applied by hand. On period homes, it looks right where silicone wouldn’t. We work on brick reveals, stone surrounds and period & listed homes, and common reasons people get in touch are mastic that needs renewing before redecorating and old cement repairs round a window that have failed.
Many older Scottish homes still have timber windows set into stone walls. Those suit a traditional sand mastic or a neutral-cure sealant, not an acetoxy silicone that can attack some stone.
All our work comes with our one-year guarantee.
- Place
- Millerhill (EH22)
- Region
- Midlothian
- Guarantee
- 12 months on all our work
- Quotes
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
The process
There is not much for you to do on the day. Show us the job and we will take it from there. The work itself takes anything from a few hours to a full day, depending on how many windows from start to finish. Around Millerhill, 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 check the window surrounds and agree which joints need renewing.
- We rake out the old mastic and clean the joint.
- We pack any deep gaps so the mastic sits at the right depth.
- Sand mastic is mixed and applied by hand, then shaped to the joint.
- We dress the surface so it sits neatly against the masonry.
Getting ready for the visit
- Plan for the work area to be out of bounds to pets and children
- Tell us about access, such as stairs, a lift or high-level joints
- Clear the area around the work
Ask for a quote
For sand mastic in Millerhill, send an email to info@mrmastic.co.uk. A short description of the job and where it is helps us quote, and you’ll get a clear quote before we start.
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Landlord and commercial work in Millerhill
We also work for property managers and facilities teams in Millerhill and across Midlothian. We can quote a run of properties together, and we’re fully insured.
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we will give you a quote.
What affects the quote in Millerhill
Jobs vary more than people expect. The main factors:
- Any mould that needs treating
- How many areas need sealing
- The type of sealant required
- When we can work, for business premises
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether the work is at height. Your quote takes all of that into account.
What to tell us for a quote
When you contact us, these details help:
- A few pictures by email, if you can
- Access, such as stairs, a lift or height
- The rough size of the job
- Any previous sealing or DIY work
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and add photos by email if you can.
FAQs for Millerhill
Will you come out to Millerhill?
Yes. Millerhill is within the area we cover, which takes in towns, villages and rural addresses. Our work covers the whole of Scotland. Let us know about access, parking and anything unusual about getting there when you book.
Can you help a landlord with a rental near Shawfair station?
Yes, landlords and agents are among the people we work for. Just email us at info@mrmastic.co.uk with the address and what needs doing, and we will send you a clear quote.
Can you match the sealant colour?
Usually, yes. White, clear and grey are common, and other colours are available, and we agree the colour with you before any work starts.
Where is Mr Mastic based?
We’re based in Crawley, West Sussex, and we cover South East England, London and all of Scotland.
Can you quote for more than one area?
Yes, and it often makes sense. Doing several areas at once is normally more efficient.
Do I need permission for sand mastic on a listed building?
It’s best to ask your local planning authority first. Like-for-like sand mastic is often the preferred finish, but they decide.
Is it messy?
No. The area is protected while we work and cleaned up afterwards.
Do you remove the old sealant?
Yes. All of the old material is cut out and the joint cleaned before applying anything new.
Can I do it myself?
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.
Leave it or put it right?
Replacing sash windows is a big decision for a period home and on a listed home, consent may be needed. Where the frames are in good order, new mastic seals the surround. In an older home around Millerhill, damp from a failed joint can get into timber and plaster.
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you’re unsure, drop us a line at info@mrmastic.co.uk for an honest opinion and a quote.
Why Millerhill clients choose us
- Arbo and Everbuild products
- Approved under the ARBOMaster scheme
- Tidy, careful work
- More than 20 years in sealant work
Take a look at what affects the cost or what customers say.
Surface by surface
Brick reveals
Brick reveals round timber windows are often pointed with sand mastic. It gives a traditional finish.
Timber door frames
A neat sand mastic joint round a front door suits a period home.
Millerhill homes and the weather
Millerhill is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. Both are hard on the mastic around older windows and doors, which can dry out and crack sooner where a building faces the weather. With historic houses such as Melville Castle (about 1.7 miles south-west) nearby, there’s older building stock in the area around Millerhill as well as newer homes. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.
Letting a property close to Shawfair station? Then any sash windows need sound mastic to keep draughts and rain out. For an older house near a landmark such as Newton Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Millerhill is about 2 miles north-west of Dalkeith, in Midlothian. For sand mastic in and around Millerhill, please email us at info@mrmastic.co.uk for a quick quote. We are based in Crawley and cover Midlothian, Millerhill included. Millerhill is one of 33 places in Midlothian we cover.
We work across EH22 for sand mastic. Local streets include Wymet Grove, Wymet Gardens and Cocklerow Loan. Neighbouring places we cover for sand mastic include Newton Village (1 mile west), Shawfair (1 mile north-west), Old Craighall (1 mile north-east), Newcraighall (2 miles north) and Whitecraig (2 miles east). Larger places within reach include Bonnyrigg (3 miles south), Penicuik (8 miles south-west), Loanhead (4 miles south-west), Gorebridge (5 miles south), Newtongrange (3 miles south) and Mayfield (3 miles south-east).
Landmarks near Millerhill
Typical jobs here are in homes near Drum Park, among other places. There’s a railway station in Millerhill itself: Shawfair station. A little further out are Musselburgh Doll Museum (2.3 miles north-east) and Dalkeith Palace (1.1 miles south-east). Green spaces nearby include The New Leaf Co-op and Nether Hill.
When to call us in Millerhill
Timber swells and shrinks with the weather. The movement cracks the mastic over time.
It’s worth asking for a quote if you see:
- Patchy fillers round a sash window
- Mastic dropping out of the joint
- Failed mastic on an exposed elevation
- Draughty sash windows at the surround
Managing a site like Dalkeith High School? Then larger buildings have plenty of frames, and the mastic around each one ages.
What to look for in a quote
- Whether VAT is included
- Who does the work, and how experienced they are
- How hidden problems are handled
- What guarantee comes with the work