Edinburgh · Scotland
External Mastic in North Leith
Specialist external mastic for North Leith: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- Failed sealant between panels on a façade
- Water getting into walls through failed joints
- Brick movement joints where the sealant has split
Should I try it myself first?
The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
External mastic in North Leith
A movement joint is a deliberate break that lets a wall expand and contract. Its sealant has to flex with the building, season after season, so once it splits or hardens, the joint stops working and water gets in. We are often asked to deal with leaking joints around cladding and façade panels and hard, crazed mastic that has stopped moving, across brickwork movement joints, render & cladding joints and joints between brick and frames.
In a Scottish city tenement, the roof, gutters and outside walls are shared by all the flats. For a tenement in North Leith, repairs to shared parts are usually agreed between the owners, often through a property factor.
The work is covered for a year after we finish. If there’s a problem with it, please drop us a line at info@mrmastic.co.uk.
- Place
- North Leith (EH6, EH7, EH5)
- Region
- Edinburgh
- Guarantee
- 12 months on all our work
- Price
- A clear price before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
What affects the cost of external mastic
Call for a quick quote. The main things that affect it are:
- Access and height
- Whether there’s mould to deal with
- Working hours on commercial sites
- How many rooms, windows or areas are involved
A few things move the cost up or down: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether we need extra access for height. Your quote takes all of that into account.
Asking for a quote
To make quoting easier, please include:
- The rough size of the job
- Any previous sealing or DIY work
- Where the property is
- A few photos by email, if you can
To get a quote, drop us a line at info@mrmastic.co.uk and tell us where the job is and what the problem looks like. You’ll have a clear quote before work begins.
Keeping the joints in good condition
Joint life depends on how it’s used and looked after. We suggest:
- Wash walls gently around the sealant
- Check external joints each spring
- Do not let climbing plants root in the sealant
- Never let anyone fill a movement joint with mortar
Only paint over the joint if we’ve confirmed the sealant can take paint. Many exterior sealants aren’t designed to be painted.
Water getting behind cladding or render can go unnoticed for a long time. By the time there’s a damp patch, the damage can be well established so early resealing is worth it.
Honest limits
A few problems are outside what sealant work can do:
- Cracked brickwork or render that needs a builder or plasterer
- Failed render or damaged cladding panels
- Rising or penetrating damp from elsewhere in the wall
Not sure which it is? You can email us at info@mrmastic.co.uk and we’ll tell you honestly.
Joints and surfaces we work on
- Joints between brick and frames
- Copings & trims
- Render & cladding joints
- Concrete & block
- Façade panels
- Brickwork movement joints
FAQs for North Leith
Do you work for landlords with property near Edinburgh Waverley station?
Yes, we work for landlords and agents. You can email us at info@mrmastic.co.uk with the address and a few details, and we will give you a fixed price before any work starts.
Who arranges sealant work on the shared parts of a tenement in North Leith?
The owners of the flats generally agree repairs to shared parts like the roof and outside walls, and many buildings have a factor to arrange it. Where the title deeds are silent, the Tenements (Scotland) Act 2004 fills the gaps. Your title deeds will say who owns the windows.
Do you seal joints where cladding meets other materials?
Yes. Different materials move at different rates, so the joint between them must be flexible. The sealant is matched to both sides.
Can you quote for more than one area?
Yes, we can. Several rooms, windows or areas can go on one quote.
Is the work guaranteed?
Yes. There’s a 12-month guarantee on every job, large or small.
When will the joints need doing again?
That varies with the weather the wall faces, how much it moves and the sealant used. Sealant is a maintenance item, so check the joints once a year and renew it when it starts to fail.
Where do you work from?
We work from Crawley. We cover North Leith and the rest of Edinburgh.
When is the sealant fully cured?
Cure times vary by product and the conditions. Before we leave, we will tell you the cure time.
Nearby places to North Leith
What else we do in North Leith
How it works
Our applicators work methodically: protect, prepare, seal, tidy. Typically it takes a few hours for a handful of joints, longer for a whole elevation and we leave things clean and tidy. Parking in city streets around North Leith can be tight or controlled, so it helps to know about permits or nearby bays. For flats, mention the door entry system and any shared-stair arrangements.
- Each joint is checked and the colour of the new sealant agreed.
- We take out the old sealant until the faces are sound.
- Backing rod goes in so the sealant can stretch between the two faces.
- Primer is applied wherever the sealant needs it.
- We gun in low-modulus sealant and tool it neatly.
Preparing for the visit
- Mention any leaks or damp you’ve noticed
- Mention any sign-in or site rules at work premises
- Let us know about stairs, lifts or work at height
Ask for a quote
We don’t publish a price list, because every job is different. Instead, we give you a clear price for your job. To arrange one, email us at info@mrmastic.co.uk.
Read more
Why act early in North Leith
Water gets in through a failed movement joint and can run behind render or cladding. Dealing with it early keeps the repair to the joint, instead of the wall and finishes around it. Private landlords in North Leith must meet the Repairing Standard, and damp or leaks can fall short of it, so it’s worth fixing failed sealant before a tenant reports it.
We do not show prices on the website, because each job is priced on what it involves. For a quick quote, please drop us a line at info@mrmastic.co.uk.
Why choose Mr Mastic in North Leith
- Anti-fungal sanitary silicone in wet areas
- 4.9 on Google from 180+ five-star reviews
- Arbo and Everbuild products
- Old sealant always removed completely
Read how sealant jobs are priced and customer reviews.
Outside joints around North Leith
North Leith 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 movement joints and outside wall joints, which can dry out and crack sooner where a building faces the weather. Harled (roughcast) walls are common in Scotland, and joints where harling meets other materials need a sealant that can grip and flex.
If you let a flat or house near Edinburgh Waverley station, outside joints that have cracked can let damp into a rental, so check them between lets. If you look after a building such as Leith School of Art, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
North Leith is about 2 miles north-east of Edinburgh, in Edinburgh. North Leith gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a one-year guarantee. We cover 175 towns and villages across Edinburgh, from the larger towns to small villages.
Here we cover the EH6, EH7 and EH5 postcode area for external mastic. External mastic is available to properties on Fyfe Lane, Haig Lane and Mill Lane. We also cover the places around North Leith: Bonnington (1 mile south), Timber Bush (1 mile east), Victoria Park (1 mile west), Leith (1 mile north-east) and Newhaven (1 mile north-west). Larger places within reach include West Coates (3 miles south-west), Sciennes (3 miles south), Merchiston (3 miles south), Newington (3 miles south), Queensferry (8 miles west) and Burgh Muir (3 miles south).
Near you in North Leith
Locally, jobs take us to homes and businesses close to McDonald Road Library, Taylor Gardens and The Annfield Bar, among other places. Other local landmarks include Leith Academy (0.8 miles south-east) and London Street Primary School (1.1 miles south). North Leith’s nearest station is Edinburgh Waverley station, about 1.7 miles south of the centre. Other landmarks nearby include Ocean Terminal (less than half a mile north) and Leith Hospital (within half a mile south-east). Not far away are Dunsapie Loch and The New Leaf Co-op.
Common problems we fix in North Leith
Sometimes a movement joint was filled with mortar or a rigid filler by mistake. With the joint locked solid, the movement turns into cracks elsewhere in the wall.
Most people get in touch when they notice one of these:
- Failed seals between different materials
- Old sealant gone brittle and cracked
- Weeds or debris growing in open joints
- Rain getting behind render or cladding at a joint
Homes close to Leith Baptist Church include some older properties, and an extension built onto an older house moves differently, and the joint between them takes the strain.
What your quote should include
- When the joint can take water or movement
- Whether the sealant suits the joint
- Who turns up on the day
- What happens if the job turns out different