Edinburgh · Scotland
Window Mastic in Boswall
Professional window mastic in and around Boswall, with every bit of old sealant taken out first.
- Mastic that is falling out in pieces
- Cracked internal joints between frame and plaster
- Sealant in the wrong colour for the frame
Windows and doors in Boswall
Boswall is close to 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. Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and failed outside joints work against that.
Rented homes near Edinburgh Waverley station change hands often, and cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets. For an older house near a landmark such as Granton Congregational Church, frames set in older brick or stone need a sealant that suits the wall as well as the frame. If you look after a building such as Broughton High School, the mastic around its windows and doors needs looking after like any other building’s.
Boswall is about 1 mile north-west of Bellevue, in Edinburgh. Every kind of property in Boswall is covered for window mastic. Every job comes with our one-year guarantee. Our Edinburgh coverage runs to 175 places, and Boswall is one of them.
Every address in EH5, EH3 and EH4 is within our area for window mastic, from the main roads to the quietest streets. We cover properties on Ferry Road, Wardie Road and Granton Road and the roads around them. Boswall sits on or near the A903, which makes travel easy. Neighbouring places we cover for window mastic include Granton (1 mile west), Goldenacre (1 mile south-east), Inverleith (1 mile south), Trinity (1 mile east) and Pilton (1 mile west). Larger places within reach include Sciennes (3 miles south-east), Merchiston (3 miles south), Newington (3 miles south-east), Queensferry (7 miles west), Burgh Muir (3 miles south-east) and Lochend (3 miles south-east).
What’s near Boswall
Around Boswall, our work takes us to homes and buildings near Starbank Park, Trinity Academy and Old Chain Pier pub, among other places. For rail, the closest station is Edinburgh Waverley station, roughly 1.9 miles south-east of the centre. A little further out are Newhaven Heritage Museum (1 mile east) and Western General Hospital (1 mile south-west). Open spaces near Boswall include Dunsapie Loch and Corstorphine Hill.
How we handle window mastic in Boswall
Some gaps around frames are far deeper than they look. Packing it solid with sealant gives a joint that cannot flex, so deep gaps get backing rod first. That way the new bead bonds to the frame and the wall only. We work on window sills, timber windows & doors and patio & French doors, and the jobs we see most are gaps where the sill meets the wall and rushed sealant from a window installation.
Tenement flats in Scotland’s cities often have windows high above the street, so the mastic outside can go unchecked for years. Access is the first thing to plan for a job in Boswall.
A 12-month guarantee comes as standard, so you are covered after we’ve gone.
- Where
- Boswall (EH5, EH3, EH4)
- Wider area
- Edinburgh
- Cover
- 12 months on all our work
- Price
- A clear quote up front
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Looking after it afterwards
Simple care keeps the joints in good condition. We recommend:
- Do not aim a pressure washer at the joints
- Keep drainage slots and sill grooves clear
- Keep solvents and bleach off the sealant
- Keep timber frames painted
Silicone can’t normally be painted, so mention any painting plans before we start. We can use a paintable sealant where that matters.
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.
Why deal with it now?
Running fresh sealant over the old joint is tempting, but new sealant cannot bond to old, crumbling mastic. It soon lifts and the leak carries on behind it. The old mastic has to come out. In a tenement flat in Boswall, a failed seal is rarely just your problem: water can reach the flat below, and gaps in shared walls or fire-stopping affect the whole stair.
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. You will know the price before we begin.
Why Boswall customers choose us
- Approved under the ARBOMaster scheme
- We never seal over old sealant
- 20+ years of sealant experience
- Fully insured
Read how sealant jobs are priced and customer reviews.
Boswall questions
Can you help a landlord with a rental near Edinburgh Waverley station?
Yes. We work for landlords and agents as well as homeowners, and several properties can be quoted together. You can send an email to info@mrmastic.co.uk with the details for a clear quote.
Does living near the coast affect window mastic in Boswall?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. The right product, a clean joint and the right depth all help it cope.
Can you seal over the old sealant?
No. We remove every bit of old sealant first, so the new sealant bonds properly.
Do I have to be there?
It depends on the job. Inside work needs someone to give us access.
Can resealing stop a draught around my window?
If the draught is coming in around the frame, yes. If it’s through the window’s own seals or a hinge, that’s a different fix, and we’ll say so.
What should I tell you?
Only a few details: where it is, what you’ve noticed and how we reach it. After that, simply email us at info@mrmastic.co.uk.
Do you come to Boswall?
Yes. We cover Boswall, as part of our work across South East England, London and Scotland. To book, email us at info@mrmastic.co.uk.
Do the sealants smell?
Sometimes, a little. It fades as the sealant cures, and ventilation helps.
What sealant work cannot fix
New sealant can’t fix everything, and we’d rather say so up front. Sealant will not put right:
- Draughts through the window seals rather than the frame
- A sash or casement that won’t close properly
- Damp problems in the wall away from the window
Not sure which it is? You can email us at info@mrmastic.co.uk and we will tell you honestly.
Where we work in Boswall
- Timber windows & doors
- Aluminium frames
- Patio & French doors
- uPVC windows
- Composite doors
- Window sills
Surface by surface
Composite doors
Front doors take the weather head on, and the top and bottom corners tend to fail first. Those corners get the most care.
uPVC windows
Plastic frames move a lot between a hot afternoon and a cold night, so we use a flexible, low-modulus sealant. White is the usual colour, with brown, anthracite grey and black for coloured frames.
DIY versus a professional finish
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 does not work out, we can still put it right.
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
Landlord and commercial work in Boswall
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we will quote.
Nearby places to Boswall
Other services in Boswall
What we do, step by step
Good joint work is mostly preparation, so that is where we spend the time. Joints are cleaned back and dried before anything new goes in. In total, it usually takes a morning for a couple of windows and a door. Inside a flat in Boswall, the job is planned with you; outside, shared parts may need the factor or other owners involved. It helps to know which it is when you get in touch.
- First, we confirm safe access to each frame.
- Old, cracked mastic is removed completely, along with any loose debris.
- Frame and wall are cleaned and must be dry before sealing.
- Deep voids are backed, then the sealant is gunned in.
- We tool the joint so water runs off, then clear up.
Preparing for the visit
- Move anything stored near the joints
- Tell us about any water getting in
- Tell us if parking is tricky
Ask for a quote
If you’re in Boswall and need window mastic, email us at info@mrmastic.co.uk. Tell us what the problem is and where, and we’ll agree the price before any work begins.