East Lothian · Scotland
Sand Mastic in Gladsmuir
Professional sand mastic in and around Gladsmuir, with old sealant always removed completely.
- Failed mastic on an exposed elevation
- Mastic round period door frames that has failed
- A silicone bead on a sash window that spoils the look
Sand mastic for homes and businesses in Gladsmuir
Sand mastic suits most period window surrounds. On modern frames we’d normally use a flexible sealant, and we’ll talk through which suits your home. We work on tenement windows, sash and case windows and stone surrounds, and common reasons people get in touch are modern sealant on a period surround and gaps round a timber door in stone or brick.
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.
The work is covered for a year after we finish. If anything is not right with it, email us at info@mrmastic.co.uk.
- Where
- Gladsmuir (EH33)
- Wider area
- East Lothian
- Guarantee
- A year, on every job
- Quote
- Quoted before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Gladsmuir: your questions answered
Does the coastal weather in Gladsmuir affect outside sealant?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. The right product, a clean joint and the right depth all help it cope.
I let a flat near Longniddry station. Can you help?
Yes. We work for landlords and letting agents as well as householders, and several properties can go on one quote. Just drop us a line at info@mrmastic.co.uk with the address and what needs doing, and we’ll send you a clear quote.
Do I need permission for sand mastic on a listed building?
Check with your local planning authority. They’ll tell you if consent is needed.
How long does sand mastic take to go off?
It forms a skin fairly soon and it hardens fully over a longer time. The weather and joint depth both affect it.
Where do you work from?
Our base is in Crawley, West Sussex, and we cover South East England, London and all of Scotland.
Which products do you use?
Quality sealants from brands including Arbo and Everbuild, picked for each joint. We explain the product when we quote.
Can you do several jobs on one visit?
Yes. Several rooms, windows or areas can go on one quote.
Can you replace silicone on a period window with sand mastic?
In most cases. The silicone is cut out and the joint cleaned before the sand mastic goes in.
When it isn’t the sealant
Sealant isn’t the answer to every problem, and we’d rather say so up front. It won’t solve:
- Masonry that needs repairing
- Sashes that rattle, stick or will not open
- Timber that has rotted
If in doubt, email us at info@mrmastic.co.uk and we’ll say what we think.
Where we work in Gladsmuir
- Period & listed homes
- Brick reveals
- Timber door frames
- Sash and case windows
- Tenement windows
- Stone surrounds
DIY versus a professional finish
If you’ve already had a go yourself, that’s fine. We cut it out and start again, so just mention it when you contact us.
If you do try it yourself, take your time over the 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.
What sand mastic looks like in Gladsmuir
Gladsmuir is within about 3 miles of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That is hard on the mastic around older windows and doors, especially on the side facing the sea. With historic houses such as Gosford House (about 3.3 miles north) nearby, there’s older building stock in the area around Gladsmuir 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.
Rented homes near Longniddry station change hands often, and cracked sand mastic around sash windows lets in the draughts tenants complain about.
Gladsmuir is about 3 miles west of Haddington, in East Lothian. Anywhere in EH33, we can carry out sand mastic at your property. We cover 48 towns and villages across East Lothian, large and small. We also work in Edinburgh, about 13 miles from Gladsmuir.
All of EH33 is within our area for sand mastic. Main roads around Gladsmuir include the A199. Nearby, we also carry out sand mastic in Macmerry (2 miles west), Longniddry (2 miles north-west), Dovecote (3 miles east), New Winton (3 miles south-west) and Easter Pencaitland (3 miles south). Within a short drive, we also cover Musselburgh (7 miles west), Dunbar (14 miles east), Tranent (4 miles west), North Berwick (9 miles north-east), Prestonpans (5 miles west) and Cockenzie and Port Seton (4 miles west).
Landmarks near Gladsmuir
For rail, the closest station is Longniddry station, about 2.1 miles north-west. A little further out are John Gray Centre Museum (3.3 miles east) and Seton Palace (2.9 miles west). The countryside around Gladsmuir includes Marl Loch and Skid Hill.
Also near Gladsmuir
What else we do in Gladsmuir
Common problems we fix in Gladsmuir
Sand mastic slowly weathers. It hardens, cracks and starts to come away from the frame or the masonry.
People usually contact us when they notice one of these:
- Patchy fillers round a sash window
- Failed mastic on an exposed elevation
- Gaps round a timber door in stone or brick
- Draughts and rain around sash boxes
For an older house near a landmark such as Gladsmuir Parish 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 the sealant suits the joint
- Is the old sealant removed completely?
- Whether they’re fully insured
- How long to leave it before use
Surface by surface
Tenement and terrace windows
In shared buildings, the windows may be part of a wider repair, so check who is responsible first.
Brick reveals
Brick reveals round timber windows are often pointed with sand mastic. It suits older brickwork.
The process
On the day, there’s very little for you to do. 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. Outdoor work around Gladsmuir depends on the weather, as sealant needs a dry surface, so an outdoor job can move if the forecast changes. Work indoors isn’t affected.
- We start by checking each surround and agreeing the joints to renew.
- Old, loose mastic is raked out and the joint cleaned.
- Large voids are packed out first, so the mastic isn’t too thick.
- We mix the sand mastic and apply it by hand, shaping it to the joint.
- We dress the surface so it sits neatly against the masonry.
Preparing for the visit
- On commercial sites, let us know about site rules
- Where the joints are inside, avoid wetting them before we arrive
- Plan for the work area to be out of bounds to pets and children
How to get a quote
For a quote, drop us a line at info@mrmastic.co.uk with the location and a short description of the problem. You’ll have a clear quote before we start.
Related advice
What affects the quote in Gladsmuir
Your quote is based on your job. We look at:
- The number and length of the joints
- Whether the work is at height
- Whether old sealant or filler has to be cut out
- Mould in or behind the old joints
There are no prices on our website, because each job is priced on what it involves. Call for a quick quote.
What to tell us for a quote
When you call or email, these details help:
- Any access issues, like height or stairs
- Whether it has been sealed before
- The address or postcode of the job
- A few photos by email, if you can
Need a quote? Please send an email to info@mrmastic.co.uk and tell us about the job. You’ll know what we plan to do, and what it will cost, before any work begins.
Why it’s worth doing now in Gladsmuir
Not every filler suits an old window surround. Sand mastic is the like-for-like choice, which can matter on listed and conservation-area homes. Around Gladsmuir, water from a failed joint in an older stone home can soak into timber and plaster, which is a far bigger job than the sealant.
A failed joint rarely gets cheaper to fix by waiting. If you are unsure, email us at info@mrmastic.co.uk and we’ll give you an honest view and a quote.
What you get with us
- Anti-fungal sanitary silicone in wet areas
- We never seal over old sealant
- Over 20 years’ experience
- 12-month guarantee on every job