Dundee · Scotland
Stobswell External Mastic
Professional external mastic in and around Stobswell, with every bit of old sealant taken out first and a 12-month guarantee.
- Plants rooting in failed movement joints
- Damp patches traced to an open external joint
- Weathered mastic that no longer stretches
Aftercare tips
Aftercare is simple:
- Avoid pressure-washing directly into sealant joints
- Do not let climbing plants root in the sealant
- Tell anyone working on the walls about the movement joints
- Check the sealant is paintable before painting near it
Do not paint over the new sealant unless we’ve said the product is paintable. Many exterior sealants are not designed to be painted and spoil the finish.
Leaks behind façade panels and render often go unseen. By the time there’s a damp patch, the damage can be well established, so it’s worth resealing at the first signs.
External mastic for homes and businesses in Stobswell
Low-level joints can usually be done from the ground. Where joints are higher up, tell us about the building when you get in touch and we’ll confirm what access is needed. If you have joints where the bead has come unstuck and weeds or debris growing in open joints, we can put it right, on render & cladding joints, façade panels and copings & trims alike.
On a four-storey tenement, gutter joints are a long way from the street, and a slow drip can stain and soak the stone for a long time before it’s spotted. In Stobswell, access needs planning, and work on shared parts may need the other owners’ agreement.
The work is guaranteed for twelve months. If something is not right with it in that time, tell us and we’ll put it right.
- Where
- Stobswell (DD3, DD4, DD1)
- Region
- Dundee
- Guarantee
- A year, on every job
- Quotes
- A clear price before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
DIY versus a professional finish
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, and the work is guaranteed for a year.
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.
Questions from Stobswell
How is work on the outside of a tenement in Stobswell normally arranged?
The owners of the flats usually agree repairs to shared parts like the roof and outside walls, and many buildings have a factor to arrange it. The Tenements (Scotland) Act 2004 sets out how that works where the title deeds do not. Windows often belong to the individual flat, but it’s worth checking your deeds.
Is external mastic in a coastal place like Stobswell any different?
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.
Do you have insurance?
Yes. We’re fully insured for every job we do.
Do you do commercial work?
Yes, regularly. Larger jobs can be planned room by room or area by area to suit the site.
Is it messy?
Tidy work is part of the job. We protect what’s around the joints, and the area is left clean when we finish.
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.
What is backing rod for?
Backing rod controls the sealant depth and keeps it off the back of the joint. Then the sealant bonds to two faces and can move.
Can you seal joints between two different materials?
Yes. The old joint is removed, both surfaces cleaned and primed where needed, and a flexible sealant applied. The colour is chosen to suit.
Places near Stobswell
More services for Stobswell
Honest limits
Some problems need a builder, plumber or other trade rather than us:
- Failed render or damaged cladding panels
- Movement that is more than a sealant joint can take
- Cracks in the bricks or render themselves, away from the joints
If you are not sure, just drop us a line at info@mrmastic.co.uk and we’ll give you a straight answer before you book.
Where we work in Stobswell
- Façade panels
- Concrete & block
- Joints between brick and frames
- Render & cladding joints
- Copings & trims
- Brickwork movement joints
Why deal with it now?
Mortar or ordinary filler might look like a quick way to close an open joint, but it stops the joint moving. The movement then cracks the brickwork or render nearby. The correct repair is a flexible sealant with the right backing. In a tenement flat in Stobswell, a failed seal is rarely just your problem: a leak can come through the ceiling below, and gaps in shared walls or fire-rated joints matter to every flat.
Every job is a little different, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all play a part.
Why book with us
- Tidy, careful work
- We are fully insured
- Over 20 years’ experience
- A 12-month guarantee on all work
Take a look at what affects the cost and customer reviews.
The process
At the end, we look at the finished work together and explain the cure time. The work normally takes a few hours to a few days, depending on the length of joint and the access, depending on the size of the job. In a city area like Stobswell, parking may be by permit or pay-and-display, so tell us what’s nearby. If you’re in a flat, let us know how we get in at the street door.
- We look at every joint and agree a colour to suit the wall.
- Failed sealant is removed back to clean, sound faces.
- 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.
Preparing for the visit
- Tell us about access, such as stairs, a lift or high-level joints
- Mention any sign-in or site rules at work premises
- Let us know about parking restrictions
Get a quote
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is.
Advice
Do you need external mastic in Stobswell?
Poor preparation causes many early failures: dusty or wet faces, no primer where one was needed, or old sealant left in. The new sealant then lets go long before it should.
The most common problems we see are:
- Weathered mastic that no longer stretches
- Joints with sealant missing in places
- Damp patches traced to an open external joint
- Moss and dirt in joints with no sealant left
Homes close to St Patrick's R.C. Church include some older properties, and an extension built onto an older house moves differently, and the joint between them takes the strain.
Questions to ask before you book
- Whether all the old sealant comes out first
- Whether you can choose the colour
- Whether VAT is included
- Whether the sealant suits the joint
What external mastic looks like in Stobswell
Stobswell 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. With historic houses such as Camperdown House (about 3.2 miles west) nearby, there’s older building stock in the area around Stobswell as well as newer homes. Where a home is older, older walls and rooflines need a sealant that moves with them and suits the material.
Rented homes near Dundee station change hands often, and split movement joints are easy to miss on a rental until damp shows inside. For site and facilities teams at buildings such as Morgan Academy, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Stobswell is about 1 mile east of Dundee, in Dundee. Across the DD3 area, we can carry out external mastic at your property. Stobswell is one of 50 towns and villages in Dundee we cover for external mastic.
All of DD3, DD4 and DD1 is within our area for external mastic. Whether your property is on Mid Road, Dens Road and Don's Road or a nearby road, we can help. Being close to the A929, Stobswell is simple for us to get to for external mastic. We also cover Dundee (1 mile west), Woodside (1 mile north), Craigiebank (1 mile east), Mill of Mains (1 mile north) and Pitkerro (1 mile north-east). We also work in nearby towns such as Broughty Ferry (4 miles east), Monifieth (5 miles east), Barnhill (4 miles east), St Marys (3 miles north-west), Menzieshill (3 miles west) and Charleston (3 miles west). Being one of Dundee’s larger places, Stobswell has homes, rented property and businesses of every kind.
What’s near Stobswell
In Stobswell, that means homes and buildings near Office of J & D Grimmond pub, Craigie High School and St Roque's Library, among other places. For rail, the closest station is Dundee station, roughly 1 mile south of the centre. Nearby you’ll also find McManus Gallery (0.6 miles south-west) and Wellgate Centre (0.5 miles south-west). Open spaces near Stobswell include Trottick Mill Ponds and Balgay Hill.
How we quote for external mastic
Some jobs are bigger than they look, and some smaller. What affects the quote:
- How much old sealant there is and how hard it is to remove
- The product the joint needs
- Whether there’s mould to deal with
- Whether the work is at height
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether the work is at height. We take all of that into account in your quote.
Asking for a quote
Before you ask for a quote, have a think about:
- What the problem is, such as mould, gaps, leaks or cracking
- The rough size of the job
- Photos by email, if that’s easy
- Any access issues, like height or stairs
For a quote, email us at info@mrmastic.co.uk with the location and a short description of the problem. We will give you a clear price before any work starts.