East Lothian · Scotland
Window Mastic in Seton
Mastic around window and door frames, sills and patio doors in Seton, with a one-year guarantee on every job. Ask us for a quote.
- Mastic that has split away from the wall
- Rushed sealant from a window installation
- Gaps where the sill meets the wall
What affects the cost of window mastic
The price is agreed before any work begins. It takes into account:
- When we can work, for business premises
- Whether there’s mould to deal with
- How much old sealant there is and how hard it is to remove
- Which sealant suits the joint
What it costs depends on how much there is to do, how much old material has to come out and how easy the joints are to reach. You will have a clear quote before any work starts.
What to tell us for a quote
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- Pictures of the joints, sent by email
- Where the property is
- The rough size of the job
- What the problem is, such as mould, gaps, leaks or cracking
Every job is quoted individually. Just email us at info@mrmastic.co.uk with the details and send pictures if you have them.
How we handle window mastic in Seton
Frames and walls don’t move together. Plastic and aluminium frames move with the temperature, while masonry stays fairly still. That’s why the joint needs a flexible, low-modulus sealant rather than something rigid. We work on timber windows & doors, window sills and aluminium frames, and common reasons people get in touch are old mastic that has gone black or come away and water coming in at the bottom corners of a door.
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.
Whatever the size of the job, you get the same one-year guarantee in Seton and across East Lothian.
- Where
- Seton (EH32)
- Region
- East Lothian
- Guarantee
- 12 months on all our work
- Quote
- Quoted before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Nearby places to Seton
What else we do in Seton
DIY sealant or a professional job?
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is.
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
When it is not the sealant
We’d rather tell you now than do work that will not last, so these are the limits:
- A failed sealed unit that has misted up
- Draughts through the window seals rather than the frame
- Broken hinges, locks or handles
If in doubt, email us at info@mrmastic.co.uk and we will say what we think before you book.
Surfaces we seal
- Patio & French doors
- Composite doors
- uPVC windows
- Aluminium frames
- Window sills
- Timber windows & doors
Seton: your questions answered
Will you come out to Seton?
Yes, we do. We work across all of Scotland, from towns to the smallest places. Longer journeys are simply planned in advance.
Is window mastic in a coastal place like Seton any different?
Near the sea, outside joints face more wind, rain and salt than they would inland, so the choice of sealant and the preparation matter even more. It’s worth checking the walls that face the sea first.
Do you guarantee window mastic?
Yes. All our work carries a 12-month guarantee, and we are ARBOMaster approved applicators.
I rent my home. Can I book you?
We are happy to deal with the tenant, landlord or agent. Get your landlord’s agreement first.
Are you ARBOMaster approved?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we are part of it.
Is it messy?
Tidy work is part of the job. Nearby surfaces are protected.
Will resealing my frames help with draughts?
Yes, where the draught is at the frame edge. We find where the air is coming from before we reseal.
How do I get a quote for window mastic in Seton?
Size, access and the old material all affect the cost. Call for a quick quote and we will talk you through it.
Frames and glazing around 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’s hard on the mastic around window and door frames, especially on the side facing the sea. 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.
If you live in an older home near Tranent Parish Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. Schools such as Ross High School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.
Seton is about 4 miles east of Musselburgh, in East Lothian. Every kind of property in Seton can book us for window mastic. The work is guaranteed for a year. We cover 48 towns and villages across East Lothian. We also work in Edinburgh, around 10 miles away.
Work in EH32 is quoted and booked the same way as anywhere else. You’ll find streets such as 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). Further out, we also cover 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).
Around Seton
Locally, jobs take us to homes and businesses close to Keeper's Arms and the streets around them. The closest station to Seton is Prestonpans station, roughly 1.2 miles west. Nearby you will also find Battle of Prestonpans Jacobite Museum (1.6 miles west) and Roodlands General Hospital (5.7 miles east).
Leave it or put it right?
A cracked joint around a frame lets rain into the wall. Left long enough, it can stain inside walls, spoil plaster and rot wooden frames. A reseal is a much smaller job. 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.
We don’t show prices on the website, because the cost depends so much on the job itself. For a quick quote, please send an email to info@mrmastic.co.uk and we will talk you through it.
Why choose Mr Mastic in Seton
- We never seal over old sealant
- Full insurance on every job
- White, clear, grey or another colour, product permitting
- Homes, businesses and hotels
Read how sealant jobs are priced and our reviews.
Different surfaces, different methods
Timber windows & doors
Where timber has rotted at the joint, it needs repairing first. We will point out any rot we find, as a joiner will need to deal with it.
Patio & French doors
Patio and French doors have the longest joints on most houses. The threshold and the bottom corners take the most water, so they get particular care.
What we are called out for in Seton
Older frames were often sealed with products that set hard. Once it’s rigid, every bit of frame movement pulls at it, and a gap opens along one edge.
The problems people normally mention when they call include:
- Untidy mastic left by window fitters
- Old mastic that has gone black or come away
- Damp patches on the reveal after heavy rain
- Draughts coming in around windows and doors
For landlords with property near Prestonpans station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
What your quote should include
- How hidden problems are handled
- When the joint can take water or movement
- Who turns up on the day
- Is VAT in the price?
How the visit works
We work through the job in order: protection first, then preparation, sealing and a tidy-up. Typically it takes most of a day for a typical house, less for a few frames and we leave things clean and tidy. Outside jobs in Seton need a dry day, because sealant will not bond to a wet joint, so an outdoor job can move if the forecast changes. Indoor work goes ahead whatever the weather.
- First we look at every frame and agree the list.
- We remove the old mastic and clean the frame and the wall.
- Deep gaps are filled with backing rod to set the depth.
- New exterior sealant goes on in a matching colour and is tooled smooth.
- Every joint is checked before we leave.
How to prepare
- Clear the area around the work
- Mention any parking rules near the property
- Keep children and pets away from the work area
Ask for a quote
Need a quote? Please send an email to 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.