Edinburgh · Scotland
Window Mastic in Swanston
Mastic around window and door frames, sills and patio doors for Swanston, backed by a 12-month guarantee. Call for a quick quote.
- Draughty joints inside around the window
- Gaps where the sill meets the wall
- Draughts coming in around windows and doors
Window mastic in Swanston, done properly
Most frames have an outside joint and an inside one. The external joint is the weather seal; the internal joint closes the gap to the plaster and stops draughts. We seal one or both, depending on what’s needed. Common call-outs are for mastic that has split away from the wall and gaps where the sill meets the wall, across window sills, uPVC windows and aluminium frames.
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.
Each job carries a 12-month guarantee, large or small.
- Location
- Swanston (EH10)
- Region
- Edinburgh
- Guarantee
- 12 months on all our work
- Price
- A clear price before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
How to look after the new joints
How long the joints last depends on use and care. We suggest:
- Don’t use solvent cleaners on the joint
- Use gentle cleaners on frames and sealant
- Walk round the house once a year and look at the joints
- Paint up to the joint, not over it
Most silicone sealants will not take paint, so mention any painting plans before work begins. There are paintable sealants for joints that need it.
Water trapped behind a failed joint can start rot in timber frames and sills. Once wood has rotted, it needs repair before it can be sealed, so it pays to reseal before that happens.
What we cannot put right
We’ll always be straight with you, so here’s what new sealant won’t do:
- Condensation trapped between the panes
- Worn gaskets, brush seals or a door that has dropped
- Soft or decayed wood in the frame
If in doubt, email us at info@mrmastic.co.uk and we’ll say what we think before you book.
Where we work in Swanston
- uPVC windows
- Window sills
- Patio & French doors
- Aluminium frames
- Timber windows & doors
- Composite doors
What affects the quote in Swanston
For a quick quote, just ask. The main things that affect it are:
- Whether the work is at height
- Mould in or behind the old joints
- How many rooms, windows or areas are involved
- Which sealant suits the joint
There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote and we’ll talk you through it.
What we need to know
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- Pictures of the joints, sent by email
- Whether it’s a home or a business
- What’s wrong with the joints now
- Roughly how big the job is
Every job is quoted individually. Simply email us at info@mrmastic.co.uk and describe the job.
Also near Swanston
What else we do in Swanston
What we do, step by step
Once we’re on site, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. After that, the work takes a morning for a couple of windows and a door. Outside jobs in Swanston need a dry day, because sealant will not bond to a wet joint, so external jobs may need to move if the day turns wet. Work indoors isn’t affected.
- Each frame is looked over and we agree which ones need resealing.
- The old mastic is cut out and scraped back to clean surfaces.
- Deep gaps get closed-cell backing rod to set the depth.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- Every joint is tooled smooth and checked before we leave.
Before we arrive
- Mention any parking rules near the property
- Mention any leaks or damp you’ve noticed
- Clear the area around the work
How to get a quote
For a quick quote, get us on the phone, or email us if that’s easier. Describe what needs sealing and we will explain what’s involved.
Advice
Work for landlords, hotels and businesses
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Resealing at the right time is simple maintenance.
Landlords and agents in Swanston can book us as well as householders. Sealant work between tenants is a simple way to keep a property in good order before the next move-in.
DIY versus a professional finish
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
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.
Window mastic in Swanston: local notes
Edinburgh’s Old and New Towns are a UNESCO World Heritage Site, and the Georgian New Town is known for its sash windows. If a home is listed or in a conservation area, it’s worth checking with the council before changing the look of windows or walls. Many older homes in Scotland have sash and case windows, and the joint between the box frame and the stone or render is traditionally pointed with sand mastic.
For site and facilities teams at buildings such as Firrhill High School, its window and door frames need their mastic kept sound, just like a home’s. If you live in an older home near Fairmilehead Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. If you let a flat or house near Slateford station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Swanston is about 3 miles south of Edinburgh, in Edinburgh. Wherever you are in the EH10 postcode area, our applicators can take on window mastic. Across Edinburgh, we cover 175 places, and Swanston is one of them.
We cover every part of EH10 for window mastic. We also cover the places around Swanston: Bonaly (2 miles west), Torphin (2 miles west), Milton Bridge (3 miles south), Penicuik (4 miles south) and Silverburn (5 miles south-west). Larger places within reach include Edinburgh (3 miles north), Leith (6 miles north), Bonnington (6 miles north), Greenside (5 miles north), Broughton (5 miles north) and Bellevue (5 miles north).
What’s near Swanston
The closest station to Swanston is Slateford station, roughly 2.5 miles north-west. Well-known places in the area include Merchiston Tower (2.8 miles north) and Princess Margaret Rose Orthopaedic Hospital (0.9 miles north-east). The countryside around Swanston includes Caerketton Hill and The New Leaf Co-op.
Swanston questions
Do you work for landlords with property near Slateford station?
Yes, landlords and agents are among the people we work for. Just drop us a line at info@mrmastic.co.uk with the address and what needs doing, and we’ll give you a clear price.
Is Swanston within the area you cover?
Yes, smaller places are covered as well as towns. We work across all of Scotland. Let us know about access, parking and anything unusual about getting there when you book.
Can you quote for more than one area?
Yes. More than one area can be quoted together.
How much does window mastic cost in Swanston?
It depends on the job, so we quote each one individually. For a quick quote, drop us a line at info@mrmastic.co.uk and tell us what needs doing and where.
How long before the joint can be used?
It depends on the product and the temperature. We tell you how long to leave it before we go.
Where are you based?
Our base is Crawley, with over 20 years’ experience. Our area covers South East England, London and Scotland.
Do you seal inside as well as outside?
Yes. Indoors, we seal between the frame and the plaster or reveal, using a paintable sealant if you want to decorate.
What do you need from me for a quote?
Only a few details: where it is, what you’ve noticed and how we reach it. Then send an email to info@mrmastic.co.uk.
What happens if it’s left?
Working on frames from a ladder with a sealant gun is not easy, especially on upper floors. We cut out properly, back deep gaps and tool every joint neatly, using a product chosen for the frame and wall. Around Swanston, 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.
The cost depends on the amount of work, how much old material has to come out and access to the work. We give a clear quote before work begins.
Why book with us
- 4.9 on Google from 180+ five-star reviews
- We are fully insured
- White, clear, grey or another colour, product permitting
- A sealant colour to suit the surroundings
Take a look at what affects the cost or what customers say.