Edinburgh · Scotland
Window Mastic in Marchmont
We cover Marchmont for mastic around window and door frames, sills and patio doors. Old sealant removed completely, joints prepared properly and every job guaranteed for a year.
- Old mastic that has gone black or come away
- Gaps where the sill meets the wall
- Whistling draughts around closed windows
About our window mastic in Marchmont
Every window and door frame has a gap around it, and mastic is what closes it. Once that seal fails, wind and rain find the gap. Our applicators cut it out and replace it with a flexible, weatherproof sealant. Typical jobs include black, perished sealant on frames and rain getting in at the frame or under the sill, on aluminium frames, patio & French doors and composite doors.
Marchmont is in one of Scotland’s four big cities, where many older buildings are sandstone or granite. Natural stone around older windows needs a sealant that will not mark or attack it, which normally means a neutral-cure product or a traditional sand mastic rather than an acetoxy silicone.
A 12-month guarantee comes with the work, just as it does everywhere we cover.
- Location
- Marchmont (EH9, EH8, EH3)
- Wider area
- Edinburgh
- Cover
- A year, on every job
- Price
- A clear quote up front
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
How the job changes by surface
Window sills
Sills catch the water running down the glass, so the sill ends and the joint under the frame are vital. They’re cut out and resealed with exterior sealant.
Patio & French doors
Not every patio door leak is a mastic problem: worn seals, blocked drainage slots or a poor threshold detail can be the cause. We look for the cause first.
What happens if it’s left?
The work is quick compared with the damage it prevents: it takes a few hours for a handful of frames, longer for a whole house. Leave it until water is coming in and you may need plastering and decorating as well. For landlords in Marchmont, damp and leaks can be a Repairing Standard issue, so failed sealant is best replaced before it becomes a complaint.
The cost reflects the work involved, not guesswork. That’s why we ask about the job first.
Why book with us
- Colour agreed with you before any work starts
- 4.9 on Google from 180+ five-star reviews
- Old sealant always removed completely
- Anti-fungal silicone where joints get wet
See our cost guide and customer reviews.
Questions from Marchmont
Does the coastal weather in Marchmont affect outside sealant?
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.
How do repairs to the shared parts of a tenement in Marchmont get organised?
It normally goes through the owners together, or through the factor if the building has one. The Tenements (Scotland) Act 2004 covers the common parts where the deeds do not, and we can quote for the factor or the owners directly.
Can new sealant go over the old?
No. We remove every bit of old sealant first.
Do you seal inside as well as outside?
Yes. The outside joint keeps the weather out, and the inside joint stops draughts and finishes the reveal. We do one or both.
Do I have to be there?
Access is agreed with you when the job is booked. Indoors, that normally means someone at home.
Will new mastic stop draughts?
It will if the frame joint is the problem. We check where the draught is before any work starts.
Can you quote for more than one area?
Of course. Doing several areas at once is usually more efficient, so mention them when you ask for a quote.
Is there any odour?
Possibly a little. It fades as the sealant cures.
Frames and glazing around Marchmont
Marchmont is within about 3 miles of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. Both are hard on the mastic around window and door frames, which can dry out and crack sooner where a building faces the weather. Historic houses like Whitefoord House (about 1.2 miles north-east) are a reminder that the area around Marchmont has older buildings as well as new. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
If you let a flat or house near Edinburgh Waverley station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets. Managing a site like Sciennes Primary School? Then larger buildings have plenty of frames, and the mastic around each one ages. Homes close to West St Giles' Parish Church include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Marchmont is about 1 mile south-west of Buccleuch, in Edinburgh. If you need window mastic in Marchmont, please email us at info@mrmastic.co.uk for a quick quote. We’re based in Crawley and cover Edinburgh. Our area takes in 175 places across Edinburgh, large and small.
Postcode districts we cover here for window mastic: EH9, EH8 and EH3. Window mastic is available to properties on Lauder Road, Meadow Lane and Grange Road. With the A700 close by, Marchmont is simple for us to get to. Other places close to Marchmont include Sciennes (1 mile east), The Grange (1 mile south-east), Lauriston (1 mile north), Burgh Muir (1 mile south-east) and Newington (1 mile east). Within a short drive, we also cover Leith (3 miles north), North Leith (3 miles north), Queensferry (9 miles north-west), Timber Bush (3 miles north), South Portobello (3 miles east) and Southhouse (3 miles south-east).
Landmarks near Marchmont
In Marchmont, that means homes and buildings near Edinburgh School of Architecture and Landscape Architecture, 22 pub and St Cuthbert's Church and the streets around them. Other local landmarks include The Meadows (under half a mile north), National Museums Scotland Library (0.6 miles north) and James Gillespie's High School (within half a mile west). The nearest railway station is Edinburgh Waverley station, about 1 mile north. Nearby you will also find Waverley Mall (1 mile north) and Meadows Dental Clinic (under half a mile south-west). Open spaces near Marchmont include Salisbury Crags and Dunsapie Loch.
Also near Marchmont
More services for Marchmont
Can I do it myself?
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.
Work for landlords, hotels and businesses
If you manage several properties in or around Marchmont, several properties can go on one quote. Just tell us the addresses and what each one needs.
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements.
What affects the quote in Marchmont
Jobs vary more than people expect. The main factors:
- When we can work, for business premises
- Any mould that needs treating
- The amount of work
- How many areas need sealing
Rather than a set price list, we look at what your job involves: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
Asking for a quote
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- If it’s domestic, commercial or a hotel
- A few photos by email, if you can
- If someone has resealed it before
- The rough size of the job
There’s no standard price list. Instead, your job gets its own clear quote. To arrange one, drop us a line at info@mrmastic.co.uk.
What we can’t put right
To be straight with you, there are a few things sealant won’t fix:
- A frame that has rotted at the joint
- A sash or casement that will not close properly
- Condensation trapped between the panes
Not sure which it is? You can email us at info@mrmastic.co.uk and we’ll tell you honestly before booking.
What we seal
- Aluminium frames
- Composite doors
- Patio & French doors
- Timber windows & doors
- Window sills
- uPVC windows
How it works
All our tools and materials come with us in the van, so you don’t need to buy or prepare anything. Once we’ve agreed what’s being done, we protect the area and start. It normally takes a morning for a couple of windows and a door. Many homes in Scotland’s cities are tenement flats, reached through a shared close and up a common stair. For a job in Marchmont, tell us the floor, how the door entry system works and where we can park nearby.
- First we look at every frame and agree the list.
- We remove the old mastic and clean the frame and the wall.
- We fit backing rod in deep gaps so the sealant is the right depth.
- We apply a weatherproof sealant to match the frame and tool it neatly.
- We clear up and check every joint is fully closed.
How to prepare
- Keep children and pets away from the work area
- Tell us about any previous sealing or DIY attempts
- Let us know about stairs, lifts or work at height
Get a quote
Every job is quoted individually, so start by telling us what you need. Simply email us at info@mrmastic.co.uk and describe the job and send photos if you have them.