Edinburgh · Scotland
Window Mastic in Mortonhall
Problem with your window and door frames in Mortonhall? We cut out the old, prepare the joints and apply the right sealant, with a one-year guarantee.
- Old mastic that has gone black or come away
- Leaking joints at the ends of sills
- A bead that doesn’t match the frame
Do you need window mastic in Mortonhall?
Older frames were often sealed with products that set hard. Once it’s rigid, every bit of frame movement pulls at it, leaving a hairline gap down one side.
Any of these means the joints need attention:
- White mastic on grey or black frames
- Cracked or shrunken mastic around the frame
- Black, perished sealant on frames
- Gaps where the sill meets the wall
If you let a flat or house near Slateford station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Comparing quotes
- What happens if the job turns out different
- Whether all the old sealant comes out first
- How long to leave it before use
- How the colour is chosen
Window mastic in Mortonhall
Over two decades of sealing frames has taught us which products suit which walls. We’re ARBOMaster approved and fully insured, and every job is covered by a 12-month guarantee. If you’re dealing with rain getting in at the frame or under the sill and cold air getting in at the frame edge, we can put it right, whatever the surface.
Outdoor sealant needs a dry surface, so window work around Mortonhall is planned around the weather. Let us know about access to every frame, including any upstairs.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we will sort it.
- Place
- Mortonhall (EH16, EH10, EH17)
- Wider area
- Edinburgh
- Guarantee
- One year on every job
- Quotes
- A clear quote up front
- info@mrmastic.co.uk
- Updated
- 26 October 2026
DIY versus a professional finish
Some sealant jobs are within reach of a careful DIYer, 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.
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
How the job changes by surface
Patio & French doors
Water at the foot of a door frame is not always the mastic: blocked drain slots, worn brush seals and threshold details can let water in too. We check before we reseal.
uPVC windows
uPVC expands and contracts noticeably with temperature, so the joint needs a low-modulus sealant that stays flexible. White is the usual colour, with brown, anthracite grey and black for coloured frames.
Nearby places to Mortonhall
Other services in Mortonhall
Mortonhall homes and the weather
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. Historic houses like Melville Castle (about 3.1 miles east) are a reminder that the area around Mortonhall has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.
For an older house near a landmark such as Fairmilehead Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. For site and facilities teams at buildings such as Gracemount High School, larger buildings have plenty of frames, and the mastic around each one ages.
Mortonhall is about 1 mile west of Southhouse, in Edinburgh. Across the EH16 area, our applicators can take on window mastic. Our Edinburgh coverage runs to 175 places, and Mortonhall is one of them.
Here we cover the EH16, EH10 and EH17 postcode area for window mastic. Local streets include Frogston Road East, Mortonhall Park Avenue and Backlee, and we cover them all. Close by, we work in Alnwickhill (1 mile east), Howden Hall (1 mile east), Kaimes (1 mile east), Gracemount (1 mile east) and Southhouse (1 mile east). Larger places within reach include Edinburgh (3 miles north), Leith (5 miles north), Bonnington (5 miles north), Greenside (4 miles north), Broughton (4 miles north) and Bellevue (4 miles north).
What’s near Mortonhall
Around Mortonhall, our work takes us to homes and buildings near Liberton Parish Church and Inch Park, among other places. The closest station to Mortonhall is Slateford station, about 2.9 miles north-west. Well-known places in the area include Cockburn Geological Museum (1.4 miles north) and Cameron Toll Shopping Centre (1.7 miles north). The countryside around Mortonhall includes The New Leaf Co-op and Blackford Hill.
Looking after it afterwards
Good habits help new joints last longer. A few tips:
- Avoid harsh chemicals near the mastic
- Do not paint over the silicone
- Keep jet washers away from the mastic
- Clean frames with a soft cloth and soapy water
Have a look at the joints once a year, ideally after winter. Small splits are simple to catch before they leak.
Wet, windy weather is when failed mastic shows itself, but sealant goes on best when frames and walls are dry. Sorting cracked mastic early means the joint is sound before the bad weather.
Questions from Mortonhall
Is Mortonhall within the area you cover?
Yes, smaller places are covered as well as towns. We work across all of Scotland. Just mention lanes, gates or anything else about the route when you book.
Do you work for landlords with property near Slateford station?
Yes. We work for landlords and letting agents as well as homeowners. Just email us at info@mrmastic.co.uk with the address and what needs doing, and we will give you a clear price.
Which products do you use?
It depends on the joint: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. We use products from Arbo and Everbuild.
How long does it take to reseal the windows on a house?
A handful of frames is a short visit, while a whole house takes longer. You will get a timescale with the quote.
Can you do several jobs on one visit?
Yes. Several rooms, windows or areas can go on one quote.
Does someone need to be in?
That depends on where the joints are. For work indoors, someone needs to let us in, and for outside work we’ll agree access with you when we book.
Is the work guaranteed?
Yes, with our 12-month guarantee. A yearly look at the joints helps them last.
Where are you based?
Mr Mastic is based in Crawley. We cover Mortonhall and the rest of Edinburgh.
When it isn’t the sealant
It helps to know what we cannot do too:
- Condensation trapped between the panes
- Soft or decayed wood in the frame
- Worn gaskets, brush seals or a door that has dropped
If you’re not sure, just drop us a line at info@mrmastic.co.uk and we will give you a straight answer.
What we seal
- Timber windows & doors
- Patio & French doors
- Window sills
- Composite doors
- uPVC windows
- Aluminium frames
For landlords and businesses
Housing providers, facilities teams and property managers book us too. We can quote a run of properties together, and we are fully insured.
We work for landlords and letting agents as well as householders. Sealant work between tenants is a simple way to keep a property in good order.
What happens on the day
Every visit runs the same way: we look at the joints together, protect the area around them, carry out the job and tidy away. It generally takes a few hours for a few frames, or a day or more for a whole house. Outdoor work around Mortonhall depends on the weather, as sealant needs a dry surface, so external jobs may need to move if the day turns wet. Work indoors isn’t affected.
- We start by checking each window and door with you.
- Next the failed sealant is cut away and the joint cleaned.
- Deep gaps are filled with backing rod to set the 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
- For business premises, tell us about site rules or sign-in
- Where the joints are inside, avoid wetting them before we arrive
- Let us know about earlier repairs to the joints
Getting a quote
Getting a quote is simple: tell us what needs doing and where. Photos by email help us understand the job, and we’ll take it from there.