Midlothian · Scotland
Sand mastic for sash & case windows in Bilston, Midlothian
Problem with your window and door surrounds in Bilston? We remove the old material, prepare the joints and seal them properly, with a one-year guarantee.
- Patchy fillers round a sash window
- Failed mastic on an exposed elevation
- Mastic round period door frames that has failed
Why it’s worth doing now in Bilston
Not every filler suits an old window surround. Sand mastic is the like-for-like choice and that can be important for listed homes. Out of town in Scotland, exposed walls take a lot of weather, and once water gets behind a failed joint, damp in stone or harled walls is slow to dry out.
The cost reflects the work involved, not a rough estimate. That’s why we ask about the job first.
Why Bilston clients choose us
- Tidy, careful work
- We never seal over old sealant
- 4.9 on Google from 180+ five-star reviews
- Full insurance on every job
Sand mastic for homes and businesses in Bilston
Our applicators renew the sand mastic around sash and case windows and doors set in stone or brick. The old mastic is raked out, and new mastic is applied and shaped by hand. If you are dealing with old cement repairs round a window that have failed and mastic round period door frames that has failed, we can put it right, whatever the surface.
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.
Your job is guaranteed for a year, as with all our work.
- Where
- Bilston (EH25)
- Wider area
- Midlothian
- Guarantee
- One year on every job
- Quotes
- Quoted before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
How to look after the new joints
A little care helps the new joints last. We recommend:
- Do not run silicone over sand mastic
- Look over the window mastic once a year
- Sort the mastic before the decorators arrive
- Clear gutters so water doesn’t pour onto the windows
Make sure water drains away from the window surround. Constant wetting wears the mastic faster.
Once mastic starts to crumble, rain gets in. It can soak into the frame and the surrounding masonry so early renewal protects both.
DIY versus a professional finish
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
What happens on the day
Our applicators work methodically: protection first, then preparation, sealing and a tidy-up. Typically it takes anything from a few hours to a full day, depending on how many windows. For a place like Bilston, longer drives are planned in advance. Tell us about tracks, gates, a ferry crossing or anything unusual about getting there.
- We look at the surrounds with you and agree the joints to renew.
- We remove the old, loose mastic.
- We pack any deep voids first.
- We apply the mastic by hand and shape it.
- The surface is finished to suit the stone or brick.
How to prepare
- Mention any leaks or damp you’ve noticed
- Where the joints are inside, avoid wetting them before we arrive
- For business premises, tell us about site rules or sign-in
Get a quote
For sand mastic in Bilston, send an email to info@mrmastic.co.uk. Tell us what the problem is and where, and you’ll get a clear quote before any work starts.
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What we are called out for in Bilston
Some old mastic was never deep enough. Mastic that’s too thin cracks and drops out so we make sure the new mastic is the right thickness.
The most common problems we see are:
- Modern sealant on a period surround
- Mastic dropping out of the joint
- Mastic that needs renewing before redecorating
- Cracked mastic round a front door frame
Melville Castle, about 3.3 miles north-east, is one of the historic houses in the wider area around Bilston, and older homes nearby need a sealant that suits their walls.
What your quote should include
- What the quote includes, VAT included or not
- Whether the sealant suits the joint
- How the colour is chosen
- When the joint can take water or movement
What affects the quote in Bilston
Jobs vary more than people expect. The main factors:
- Any mould that needs treating
- Whether old sealant or filler has to be cut out
- Whether the work is at height
- How many areas need sealing
Commercial jobs are quoted on the same basis as homes: how much there is to do, how we reach it and what it needs, along with when we can work on site. Ask us for a quote and we’ll go through it with you.
What to tell us for a quote
Before you ask for a quote, have a think about:
- How many joints, rooms or windows are involved
- What’s wrong with the joints now
- A few pictures by email, if you can
- Whether it’s a home or a business
For a quick quote, get us on the phone, or email us if that’s easier. Tell us about the joints that need doing and we will talk you through the work.
What sand mastic looks like in Bilston
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 failed outside joints work against that.
Rented homes near Eskbank station change hands often, and any sash windows need sound mastic to keep draughts and rain out.
Bilston is about 3 miles north-east of Penicuik, in Midlothian. Across the EH25 area, our applicators can take on sand mastic. Bilston is one of 33 towns and villages in Midlothian we cover for sand mastic.
Jobs for sand mastic in EH25 works the same way as everywhere else we cover. Whether your property is on Seafield Crescent, Seafield Road and Stanley Avenue or anywhere close by, our applicators can take on the job. We also cover the places around Bilston: Old Pentland (1 mile north), Roslin (1 mile south-east), Loanhead (1 mile north-east), Hillend (1 mile north-west) and Polton (2 miles east). We also work in nearby towns such as Bonnyrigg (3 miles east), Dalkeith (5 miles east), Penicuik (3 miles south-west), Gorebridge (5 miles east), Newtongrange (5 miles east) and Mayfield (6 miles east).
Local landmarks in Bilston
For rail, the closest station is Eskbank station, roughly 3.9 miles east of the centre. A little further out are Glencorse Museum (2.1 miles south-west) and Roslin Castle (1.5 miles south-east). Green spaces nearby include The New Leaf Co-op and Woodhouselee Hill.
Work for landlords, hotels and businesses
Letting agents often deal with us directly. Tell us the address, the job and how access works.
Mouldy or split sealant often shows up at the end of a tenancy. We can quote for more than one property at once.
Your questions about sand mastic in Bilston
Is Bilston in your area for sand mastic?
Yes. We work across all of Scotland, and Bilston is part of that. Just drop us a line at info@mrmastic.co.uk with a few details of the job.
I let a flat near Eskbank station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. You can email us at info@mrmastic.co.uk with the details for a clear quote.
Do you work for hotels and businesses?
Yes. We work in offices, washrooms, hotels and other commercial premises, as well as homes. We can talk about working times when we quote.
How long does sand mastic take?
As a guide, most jobs take a few hours per window, depending on the condition of the joints. Bigger jobs take longer, and we’ll say how long yours will take.
Can I paint the new mastic?
Sand mastic is normally left unpainted, as guidance on traditional windows advises. Ask us before decorating.
Which products do you use?
Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference, and we’ll tell you what we’re using.
Can you do several jobs on one visit?
Yes. Several rooms, windows or areas can go on one quote.
Are you an approved applicator?
Yes. We hold ARBOMaster approved applicator status.