Edinburgh · Scotland
External Mastic in Piershill
External mastic for Piershill, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Moss and dirt in joints with no sealant left
- Sealant that has lost its bond to the brick or render
- Rain getting behind render or cladding at a joint
External mastic in Piershill
Where two different materials meet, such as brick and render or blockwork and metal, they move at different rates. A flexible exterior sealant takes up that movement where a rigid filler would soon crack. If you have movement joints with cracked, split or missing sealant and hard, crazed mastic that has stopped moving, we can put it right, on render & cladding joints, concrete & block and joints between brick and frames alike.
Alongside their tenements, Scotland’s cities have modern blocks with render, cladding and movement joints. Around Piershill, as anywhere, those joints dry out and crack over time, letting water behind the face of the building.
Every job comes with a one-year guarantee.
- Place
- Piershill (EH7, EH8, EH15)
- Wider area
- Edinburgh
- Cover
- 12 months on all our work
- Quotes
- Quoted before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
When to call us in Piershill
Poor preparation causes many early failures: joint faces that were dusty or damp, unprimed where they needed it, or still carrying old sealant. The new sealant then lets go long before it should.
Any of these means the joints need attention:
- Gaps where render, brick and frames meet
- Hard, crazed mastic that has stopped moving
- Joints pointed up with cement by mistake
- Rain getting behind render or cladding at a joint
For an older house near a landmark such as Willowbrae Parish Church, the joints between older walls, newer extensions and the roofline need a sealant that can move.
What your quote should include
- Is the old sealant removed completely?
- Are they insured?
- Which sealant they’ll use, and why
- Who does the work, and how experienced they are
Looking after it afterwards
After the cure time, these simple habits help:
- Clear growth from the base of walls and joints
- Walk round the building once a year and look at the joints
- Ask before painting over external sealant
- Act on the first splits you see
Make sure anyone working on the wall later knows where the movement joints are. They must stay as flexible joints, never rendered or pointed over.
A joint that has stopped moving pushes the movement elsewhere, generally as cracking in the brickwork or render nearby. Resealing it early helps prevent that.
Questions from Piershill
Does the coastal weather in Piershill affect outside sealant?
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.
I let a flat near Edinburgh Waverley station. Can you help?
Yes, rental work is part of what we do. You can send an email to info@mrmastic.co.uk with the address and a few details, and we’ll give you a fixed price before work begins.
Will the old sealant be removed?
Yes. All of the old material is cut out and the joint cleaned.
What information do you need?
Tell us what needs doing and where, plus pictures if you have them. If we need more, we’ll ask.
What does external mastic cost?
Every job is different, so each one gets its own quote. For a quick quote, email us at info@mrmastic.co.uk with a short description of the job.
Is there a guarantee?
Yes. All our work carries a 12-month guarantee.
Can you seal joints between render and window frames?
Yes. Joints between dissimilar materials are a big part of external work. The sealant is chosen to bond to both sides.
How long does external mastic take?
It depends on the size of the job, but as a guide it takes a few hours to a few days, depending on the length of joint and the access. We’ll tell you when we quote.
What external mastic looks like in Piershill
Piershill is within about 2 miles of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That is hard on movement joints and outside wall joints, especially on the side facing the sea. Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and sound outside sealant is part of that.
For site and facilities teams at buildings such as Portobello High School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. If you let a flat or house near Edinburgh Waverley station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Piershill is about 3 miles east of Edinburgh, in Edinburgh. Whether you are in the middle of Piershill or further out, we cover external mastic for every kind of property. Across Edinburgh, we cover 175 places, Piershill among them.
All of EH7, EH8 and EH15 is within our area for external mastic. If you need external mastic at a property on Loaning Road, Abercorn Road and Loganlea Road or anywhere close by, our applicators can take on the job. Piershill is on the A1140, which makes it straightforward to reach. Other places close to Piershill include Jock's Lodge (1 mile west), Willowbrae (1 mile south-west), Restalrig (1 mile north-west), Mountcastle (1 mile south-east) and Craigentinny (1 mile north-east). Larger places within reach include Edinburgh (3 miles west), West End (3 miles west), Stockbridge (3 miles west), West Coates (3 miles west), Merchiston (3 miles south-west) and Queensferry (10 miles west).
Local landmarks in Piershill
Typical jobs here are in homes near Duddingston Kirk, Lochend Park and Public House, among other places. Other local landmarks include Portobello Library (1.1 miles east) and Mannafields Christian School (1.1 miles west). The closest station to Piershill is Edinburgh Waverley station, about 1.8 miles west. Nearby you will also find Hibernian Football Club Museum (1 mile north-west) and Craigmillar Castle (2 miles south). For a walk, there’s The New Leaf Co-op and Whinny Hill.
What happens on the day
When we get to you, we check the joints match what you told us. If anything is different, we explain it before carrying on. After that, the work takes anything from a few hours to several days, depending on the building. In a city area like Piershill, parking may be by permit or pay-and-display, so tell us what’s nearby. For flats, mention the door entry system and any shared-stair arrangements.
- We look at every joint and agree a colour to suit the wall.
- We take out the old sealant until the faces are sound.
- Closed-cell backing rod is pushed in so the sealant bonds to two sides only.
- Primer is applied wherever the sealant needs it.
- We gun in low-modulus sealant and tool it neatly.
How to prepare
- Tell us if parking is tricky
- Mention any sign-in or site rules at work premises
- Plan for the work area to be out of bounds to pets and children
How to get a quote
We do not publish a price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To arrange one, email us at info@mrmastic.co.uk.
Related advice
What sealant work cannot fix
Before booking, it’s worth knowing the limits:
- Subsidence or other structural problems
- Damp that isn’t coming from the joint
- Adding movement joints to masonry that has none
If you’re not sure, just email us at info@mrmastic.co.uk and we will give you a straight answer before booking.
What we seal
- Render & cladding joints
- Copings & trims
- Concrete & block
- Façade panels
- Brickwork movement joints
- Joints between brick and frames
Surface by surface
Copings and trims
Joints in copings, parapets and trims are exposed to the worst of the weather. We reseal them with an exterior sealant suited to the material.
Joints between dissimilar materials
Wherever two materials meet, they move differently. A flexible sealant bridges the two.
Landlords, agents and businesses in Piershill
Letting agents and landlords in Piershill can book us as well as householders. Sealant work between tenants keeps a property looking cared for.
From a single let to a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a 12-month guarantee.
Can I do it myself?
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.