Edinburgh · Scotland
External & façade joints in Merchiston, Edinburgh
Movement joints in Merchiston need attention? We remove the old material, prepare the joints and seal them properly, with a 12-month guarantee.
- Sealant that has lost its bond to the brick or render
- Gaps where render, brick and frames meet
- Weeds or debris growing in open joints
Signs you need external mastic in Merchiston
Many joints fail because they were sealed too deep or with nothing behind them. If the sealant sticks to the back as well as the sides, it can’t stretch and rips as the joint opens.
Signs it’s time to call us include:
- Water getting into walls through failed joints
- Movement joints with cracked, split or missing sealant
- Panel joints letting water in
- Cracked joints where brick meets render or frames
For an older house near a landmark such as Christ Church, older walls, gutters and the joints where extensions meet them need a flexible sealant.
Questions to ask before booking
- Who turns up on the day
- How long to leave it before use
- Whether they’re fully insured
- Whether the sealant suits the joint
How we handle external mastic in Merchiston
Getting the depth right is half the job. Closed-cell backing rod sets the depth and stops the sealant sticking to the back, leaving it bonded to two faces so it can move with the wall. Common call-outs are for moss and dirt in joints with no sealant left and sealant that has lost its bond to the brick or render, across joints between brick and frames, brickwork movement joints and copings & trims.
Scotland’s cities also have plenty of modern blocks with rendered or clad walls and sealed movement joints. Around Merchiston, as anywhere, those joints dry out and crack over time, letting water behind the face of the building.
We stand behind the work with a one-year guarantee.
- Location
- Merchiston (EH10, EH11, EH3)
- Wider area
- Edinburgh
- Cover
- A year, on every job
- Quote
- A clear price before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Common questions in Merchiston
Does living near the coast affect external mastic in Merchiston?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. The right product, a clean joint and the right depth all help it cope.
How do repairs to the shared parts of a tenement in Merchiston get organised?
Shared parts of a tenement, such as the roof and outside walls, are normally repaired with the agreement of the owners, often through a property factor. The Tenements (Scotland) Act 2004 sets out how that works where the title deeds don’t. Windows often belong to the individual flat, but it’s worth checking your deeds.
How long will you be here?
Typically it takes a few hours to a few days, depending on the length of joint and the access. Larger jobs naturally take longer, and we will say how long yours will take.
Is it messy?
We keep the work tidy. We protect what’s around the joints, and the area is left clean when we finish.
Can tenants book the work?
Yes. Ask your landlord first, and we can send them the quote if that helps.
What information do you need?
A short description and the location. If we need more, we’ll ask.
How long does external mastic last?
It varies from wall to wall: joints on exposed walls or with a lot of movement age sooner. A yearly look will tell you when they need doing. Our work comes with a one-year guarantee.
How do you reach high-level joints?
It depends on the height and the site. Low-level joints are straightforward; for higher work, tell us about the building and we will confirm what’s needed.
Walls and rooflines in Merchiston
Merchiston 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. That’s hard on movement joints and outside wall joints, especially on the side facing the sea. Plenty of Scottish homes have harled walls, and joints where harling meets other materials need a sealant that can grip and flex.
For site and facilities teams at buildings such as Boroughmuir High School, larger buildings have long runs of movement joint that eventually need resealing. Letting a property close to Haymarket station? Then split movement joints are easy to miss on a rental until damp shows inside.
Merchiston is about 1 mile south of Edinburgh, in Edinburgh. For external mastic in and around Merchiston, it’s easy to get a quote: please email us at info@mrmastic.co.uk. We’re based in Crawley and cover Edinburgh, Merchiston included. Across Edinburgh, we cover 175 places, and Merchiston is one of them.
We cover every part of the EH10, EH11 and EH3 postcode area for external mastic and the streets around it. We cover properties on Eden Lane, Spylaw Road and Bryson Road and the roads around them. Other places close to Merchiston include Bruntsfield (1 mile east), Holy Corner (1 mile south), Greenhill (1 mile south), Burghmuirhead (1 mile south) and Church Hill (1 mile south). Within a short drive, we also cover Leith (3 miles north-east), Bonnington (3 miles north-east), North Leith (3 miles north), Queensferry (8 miles north-west), Timber Bush (3 miles north-east) and Lochend (3 miles north-east).
Landmarks near Merchiston
In Merchiston, that means homes and buildings near Golf Tavern, St Cuthbert's Church and Bruntsfield Links. Also close by are Tollcross Primary School (0.5 miles north), National Museums Scotland Library (1.1 miles north-east) and Iain Tomlin School of Music (under half a mile south-west). The nearest railway station is Haymarket station, about 0.7 miles north-west of the centre. Other landmarks nearby include Bruntsfield Hospital (less than half a mile east) and Museum of Fire (0.7 miles north-east). The countryside around Merchiston includes Blackford Hill and Dunsapie Loch.
DIY versus a professional finish
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, and the work is guaranteed for a year.
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.
Why act early in Merchiston
Done well, a resealed joint is a neat, straight line that suits the wall. A rushed bead with no backing looks untidy and does not last, so it pays to do it properly once. In a Scottish city tenement, failed sealant affects more than one flat: water can reach the flat below, and gaps in shared walls or fire-stopping affect the whole stair.
The cost depends on the size of the job, how much old material has to come out and how easy the joints are to reach. You will have a clear quote before any work starts.
Why choose Mr Mastic in Merchiston
- We leave the area clean and tidy
- Fully insured
- Arbo and Everbuild products
- An ARBOMaster approved applicator
Take a look at how sealant jobs are priced and what customers say.
The process
Before we leave, we go over the finished joints with you and tell you how long to leave it. The work normally takes a few hours to a few days, depending on the length of joint and the access, depending on how much there is to do. In a Scottish city, a lot of jobs are in tenement flats, up a common stair from a shared close. In Merchiston, it helps to know the floor, the door entry arrangements and the nearest parking.
- First, the joints are inspected and the access agreed.
- We cut out the old mastic and rake out anything in the joint.
- The faces are brushed clean and primed where the product requires it.
- We fit closed-cell backing rod to control the depth.
- We apply the sealant, tool it and check the whole run.
Getting ready for the visit
- For indoor joints, keep the area dry beforehand if you can
- Clear items away from the joints we are working on
- Mention if the joints have been sealed before
How to get a quote
Quotes start with a quick conversation. Describe the problem, the location and the size of the job. When it suits you, email us at info@mrmastic.co.uk.
Read more
Work for landlords, hotels and businesses
We also work for property managers and facilities teams in Merchiston and across Edinburgh. We can quote a run of properties together, and we are fully insured.
In hotels, rooms out of use cost money, so the work can be planned room by room around your bookings where we can. We have worked in hotels as well as homes and businesses.
Also near Merchiston
What else we do in Merchiston
What sealant work can’t fix
Sealant isn’t the answer to every problem, and we’ll tell you before we start. Sealant will not put right:
- Cracking across the wall rather than at a joint
- Rising or penetrating damp from elsewhere in the wall
- Cutting new joints into brickwork, which is building work rather than sealant work
If in doubt, send an email to info@mrmastic.co.uk and we will say what we think before you book.
What we seal
- Render & cladding joints
- Concrete & block
- Façade panels
- Joints between brick and frames
- Copings & trims
- Brickwork movement joints
Looking after it afterwards
How long the joints last depends on use and care. We suggest:
- Look over the joints every year, ideally after winter
- Leave the joints unpainted unless we have said otherwise
- Have failed joints looked at early
- Tell anyone working on the walls about the movement joints
Make sure anyone working on the wall later knows where the movement joints are. They should be kept open and resealed, not filled.
Once a joint can’t move, the wall finds another way, often as cracks near the joint. Catch it early and you reduce the risk.