East Lothian · Scotland
Sand Mastic in Seton
Sand mastic for Seton and the surrounding area: careful preparation, the right product and tidy work. Call for a quick quote.
- Silicone on a period window that looks wrong
- Mastic dropping out of the joint
- Gaps between timber frames and stone or brick
How we handle sand mastic in Seton
Sand mastic suits most period window surrounds. On modern frames we’d normally use a flexible sealant and we’ll explain which is best for yours. Typical jobs include mastic round period door frames that has failed and mastic dropping out of the joint, on period & listed homes, timber door frames and stone surrounds.
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.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Location
- Seton (EH32)
- Wider area
- East Lothian
- Cover
- 12 months on all our work
- Price
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Different surfaces, different methods
Sash and case windows
A sash window’s box frame sits in the masonry opening. The gap round it is pointed with sand mastic.
Tenement and terrace windows
Where a building is shared, window work may involve neighbours so it’s worth checking responsibilities.
For landlords and businesses
We also work for property managers and facilities teams in Seton and across East Lothian. Several sites can go on one quote.
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 that we can handle for you.
Quotes for sand mastic in Seton
Every job gets its own quote. This is what makes a difference:
- The product the joint needs
- Mould in or behind the old joints
- When we can work, for business premises
- The number of rooms or windows
What you pay reflects the work, not guesswork. That is why we ask a few questions first.
What to tell us for a quote
When you contact us, it’s useful to know:
- Roughly how big the job is
- If someone has resealed it before
- Photos by email, if that’s easy
- If it’s domestic, commercial or a hotel
Want a quote for sand mastic? Please drop us a line at info@mrmastic.co.uk and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.
Windows and doors in Seton
Seton is close to 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. Many older homes in Scotland have sash and case windows, often pointed into the wall with traditional sand mastic.
If you let a flat or house near Prestonpans station, cracked sand mastic around sash windows lets in the draughts tenants complain about. In the older streets around Tranent Parish Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Seton is about 4 miles east of Musselburgh, in East Lothian. Jobs in Seton get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Our East Lothian coverage runs to 48 places, Seton among them. For nearby work, see our Edinburgh page.
Our applicators cover all of the EH32 postcode area for sand mastic and the streets around it. Streets in the area include Springdale Road, Greendykes Way and Princes Way, all of which we cover. Other places close to Seton include Tranent (1 mile south), Cockenzie and Port Seton (1 mile north), Prestonpans (1 mile west), Macmerry (2 miles south-east) and Prestongrange (2 miles west). We also work in nearby towns such as Musselburgh (4 miles west), Haddington (6 miles east), North Berwick (11 miles north-east), Wallyford (3 miles south-west), Gullane (7 miles north-east) and East Linton (11 miles east).
What’s near Seton
Locally, jobs take us to homes and businesses close to Keeper's Arms. The nearest railway station is Prestonpans station, about 1.2 miles west of the centre. Nearby you will also find Battle of Prestonpans Jacobite Museum (1.6 miles west) and Roodlands General Hospital (5.7 miles east).
Signs you need sand mastic in Seton
Most of it is simply age. Even well-laid mastic needs renewing in time and how long it lasts depends on the weather it faces.
If you can see any of these, it’s time to have the joints looked at:
- Old cement repairs round a window that have failed
- Draughty sash windows at the surround
- Cracked mastic round a front door frame
- Open joints round the window box
For site and facilities teams at buildings such as Ross High School, its window and door frames need their mastic kept sound, just like a home’s.
What your quote should include
- Whether all the old sealant comes out first
- When the joint can take water or movement
- Which sealant they’ll use, and why
- How the colour is chosen
How the visit works
When we get to you, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. Most jobs then take anything from a few hours to a full day, depending on how many windows. Around Seton, distance and access matter more than parking. Let us know how to find you and how to reach the joints.
- First we agree which joints need doing.
- Old mastic and any loose material are raked out.
- Deep gaps are packed so the mastic sits at the right depth.
- We apply the mastic by hand and shape it.
- The surface is finished to suit the stone or brick.
Before we arrive
- Where the joints are inside, avoid wetting them before we arrive
- Keep children and pets away from the work area
- Mention any sign-in or site rules at work premises
Getting a quote
Getting a quote is simple: tell us what needs doing and where. A few photos by email make the job easier to understand, and we’ll come back to you with a quote.
Related advice
Seton: your questions answered
Do you cover smaller places like Seton?
Yes, Seton is covered. Our work covers the whole of Scotland, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Does living near the coast affect sand mastic in Seton?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. The right product, a clean joint and the right depth all help it cope.
Where do you work from?
Mr Mastic is based in Crawley. We cover Seton and the rest of East Lothian, along with the rest of our area.
Can you replace silicone on a period window with sand mastic?
In most cases. We remove the silicone and clean the joint, then point it with sand mastic.
Is it OK to seal over old sealant?
No. We remove every bit of old sealant first, so the new sealant bonds properly.
Can I add another job to the visit?
Yes. Just list everything you need and you will get one quote.
What do you put in the joint?
We choose the sealant for the joint, not the other way round. Movement, water and weather all affect the choice, and we will explain our choice.
Is the work guaranteed?
Every job comes with our 12-month guarantee.
How to look after the new joints
No joint lasts for ever, but care makes a real difference. A few tips:
- Ask a joiner to look at soft timber first
- Check with your local planning authority if your home is listed
- Avoid patching sand mastic with silicone
- Take care around the mastic when scraping paint
Make sure water drains away from the window surround. Constant wetting wears the mastic faster.
Good mastic helps keep the frame dry. Failed mastic lets water reach the timber, which can lead to rot.
Why act early in Seton
Silicone might seem the quicker option, but on period stone or brick it often looks out of place. Sand mastic is the traditional material and blends with the stone or brick. In an older home around Seton, damp from a failed joint can get into timber and plaster.
There are no prices on our website, because each job is priced on what it involves. For a quick quote, please send an email to info@mrmastic.co.uk.
Why us?
- An ARBOMaster approved applicator
- Neat joints and a tidy finish
- We never seal over old sealant
- We are fully insured
Read what affects the cost or what customers say.