Dundee · Scotland
External Mastic in Monifieth
Movement joints in Monifieth need attention? We cut out the old, prepare the joints and apply the right sealant, with a 12-month guarantee.
- Sealant pulling away from one side of the joint
- Hard, crazed mastic that has stopped moving
- Moss and dirt in joints with no sealant left
How to look after the new joints
To keep the joints looking good and working properly:
- Keep high-pressure jets off the joints
- Keep water from gutters off the wall
- Ask before painting over external sealant
- Clear growth from the base of walls and joints
Do not let soil, plants or ivy build up against the new joints. Damp material against the sealant shortens its life.
Leaks behind façade panels and render often go unseen. When it finally shows inside, the joint may have been open for years.
External mastic in Monifieth, done properly
Ground-floor and low-level joints are straightforward to reach. For joints higher up, give us some details of the building and we will confirm what’s needed to reach them safely. If you’re dealing with failed sealant between panels on a façade and brick movement joints where the sealant has split, we can help, whatever the surface.
External sealant needs dry surfaces, so outdoor work around Monifieth is planned around the weather. Let us know about access to every wall and roofline.
A one-year guarantee comes with the work, just as it does everywhere we cover.
- Where
- Monifieth (DD5)
- Region
- Dundee
- Cover
- One year on every job
- Quote
- A clear price before work begins
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Questions from Monifieth
Do you work for landlords with property near Monifieth station?
Yes. We work for letting agents and landlords as well as homeowners, and several properties can be quoted together. Just drop us a line at info@mrmastic.co.uk with the address and what needs doing, and we will give you a clear quote.
Will you come out to Monifieth?
Yes, we do. Our work covers the whole of Scotland, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Are you an approved applicator?
Yes. We’re an ARBOMaster approved applicator.
Do you remove the old sealant?
Yes, always, and completely. New silicone doesn’t stick to old silicone, so the joint is cleaned back first.
Will you leave a mess?
No. We protect the surfaces around the joints, and we tidy up before we go.
What is a movement joint?
It’s a deliberate gap that lets the wall expand and contract without cracking. It’s sealed with a flexible sealant, not mortar.
Where is Mr Mastic based?
We work from Crawley. We cover Monifieth and the rest of Dundee, along with the rest of our area.
Should I try DIY first?
It depends on the job. High-level, external movement and fire-rated joints are professional jobs, while a short indoor joint may be within reach.
When something else is needed
In fairness, some problems need a different trade:
- Failed render or damaged cladding panels
- Adding movement joints to masonry that has none
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
Not sure which it is? You can email us at info@mrmastic.co.uk and we will tell you honestly before booking.
Surfaces we seal
- Façade panels
- Render & cladding joints
- Joints between brick and frames
- Brickwork movement joints
- Concrete & block
- Copings & trims
Why deal with it now?
It often makes sense to reseal all the failing joints on an elevation together. They’ve weathered the same way, and access only has to be arranged once. In an older home around Monifieth, damp from a failed joint can get into timber and plaster.
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you’re unsure, send an email to info@mrmastic.co.uk for an honest opinion and a quote.
Why book with us
- Full insurance on every job
- An ARBOMaster approved applicator
- One-year guarantee on every job
- Domestic, commercial and hotel work
How it works
On the day, there’s very little for you to do. Point us to the joints and we’ll get on with it. The work itself takes a few hours to a few days, depending on the length of joint and the access, including the tidy-up. Outdoor work around Monifieth depends on the weather, as sealant needs a dry surface, so external jobs may need to move if the day turns wet. Indoor work goes ahead whatever the weather.
- We start by checking each joint, agreeing the ones to redo and how we will reach them.
- The old mastic and anything lodged in the joint is removed.
- The joint faces are cleaned and primed where the sealant needs it.
- We push in closed-cell backing rod so the sealant is the right depth and bonds to the sides only.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
Getting ready for the visit
- For business premises, tell us about site rules or sign-in
- Tell us about any previous sealing or DIY attempts
- Tell us about any water getting in
Ask for a quote
Need a quote? Please send an email to info@mrmastic.co.uk with a few details. We’ll explain what we’d do and give you a clear price before we start.
Advice
For landlords and businesses
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we’ll quote.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. Several properties can be quoted together.
Surface by surface
Copings and trims
Coping and trim joints face rain and sun head on. Each is resealed with a weatherproof, flexible sealant.
Cladding and façade panels
Metal and composite panels move a lot with temperature, so the joint sealant has to cope with frequent movement. We choose the product to suit.
DIY sealant or a professional job?
A DIY attempt doesn’t rule out a professional job. We cut it out and start again, so tell us about it when you ask for a quote.
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Nearby places to Monifieth
Other services in Monifieth
What external mastic looks like in Monifieth
Monifieth is within about 1 mile of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on movement joints and outside wall joints, which can dry out and crack sooner where a building faces the weather. Dundee sits on the north bank of the Tay, and much of its older housing is sandstone tenements.
For site and facilities teams at buildings such as Grange Primary School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. Rented homes near Monifieth station change hands often, and failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Monifieth is about 2 miles east of Broughty Ferry, in Dundee. Every kind of property in Monifieth can book us for external mastic, old or new, large or small. Every job comes with our 12-month guarantee. Monifieth is one of 50 places in Dundee where we work. You can also see our page for Dundee, about 6 miles away.
Here we cover the DD5 postcode area for external mastic. If you need external mastic at a property on High Street, Cortachy Circle and Ethiebeaton Terrace or anywhere close by, we can help. Monifieth sits on or near the A930 and B962, which makes travel easy. Other places close to Monifieth include Barnhill (1 mile south-west), Broughty Ferry (2 miles west), Drumsturdy (2 miles north), Newbigging (2 miles north) and Kingennie (2 miles north-west). We also work in nearby towns such as Dundee (6 miles west), Stobswell (5 miles west), Blackness (7 miles west), Logie (7 miles west), St Marys (7 miles west) and Downfield (6 miles west). Being one of Dundee’s larger places, Monifieth has every kind of property, from flats to offices.
Around Monifieth
In Monifieth, that means homes and buildings near Monifieth High School and the streets around them. There’s a railway station in Monifieth itself: Monifieth station. Well-known places in the area include Ashludie Hospital (within half a mile north-east) and James Guthrie Orchar Art Gallery (2.2 miles south-west).