Angus · Scotland
Douglastown External Mastic
Specialist external mastic for Douglastown: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Joints with sealant missing in places
- Old sealant gone brittle and cracked
- Rigid filler in a joint that should flex
External mastic in Douglastown, done properly
Short cuts in external joints show up within a season or two. Overfilled joints, missing backing rod and sealant laid over old sealant all tend to fail early. We take the old material out and do it properly. Common call-outs are for sealant that has lost its bond to the brick or render and rain getting behind render or cladding at a joint, across concrete & block, copings & trims and façade panels.
Across smaller places in Scotland, stone and harled cottages, farm buildings and newer houses often stand exposed to wind and rain. Outside joints on exposed walls work hard, so they need a sealant that moves with the building.
You’re covered for a year from the day we finish. If there’s a problem with it, please email us at info@mrmastic.co.uk.
- Location
- Douglastown (DD8)
- Region
- Angus
- Cover
- A year, on every job
- Price
- A clear quote up front
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
When something else is needed
It helps to know what we can’t do:
- Render that is blown, hollow or coming away
- Cutting new joints into brickwork, which is building work rather than sealant work
- Cracked brickwork or render that needs a builder or plasterer
If in doubt, send an email to info@mrmastic.co.uk and we’ll say what we think before you book.
What we seal
- Copings & trims
- Brickwork movement joints
- Render & cladding joints
- Façade panels
- Concrete & block
- Joints between brick and frames
Signs you need external mastic in Douglastown
Sometimes a movement joint was filled with mortar or a rigid filler. The joint cannot move, so the wall cracks somewhere else instead.
Look out for any of the following:
- Panel joints letting water in
- Sealant that has lost its bond to the brick or render
- Weathered mastic that no longer stretches
- Movement joints filled with mortar instead of sealant
Around Douglastown, as everywhere, external mastic is only as good as the preparation behind it.
Before booking anyone
- Whether the sealant suits the joint
- What guarantee comes with the work
- Is VAT in the price?
- Whether you can choose the colour
Douglastown questions
Is Douglastown in your area for external mastic?
Yes, Douglastown is within the area we cover. We work across all of Scotland. Just send an email to info@mrmastic.co.uk with a few details of the job.
Is Douglastown within the area you cover?
Yes, Douglastown is covered. Our work covers the whole of Scotland, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
What colours does the sealant come in?
Exterior sealants are made in a range of colours, from greys and browns to whites and stone shades. We pick the one that suits your wall best so the joint doesn’t draw the eye.
Can you seal joints between two different materials?
Yes. Joints between dissimilar materials are a big part of external work. We use a flexible sealant suited to both surfaces, primed where needed.
Where do you work from?
We work from Crawley. Our applicators cover Douglastown.
Is it OK to fill a movement joint with cement?
No, not if it’s a movement joint. Filling it with mortar defeats its purpose. We will reseal it with a flexible sealant.
Are you an approved applicator?
Yes. We’re an ARBOMaster approved applicator, which is run for the Arbo sealant brand.
What do you put in the joint?
Quality sealants from brands including Arbo and Everbuild, chosen to suit the joint. We explain the product when we quote.
Looking after it afterwards
Looking after new joints is easy, and it makes a real difference:
- Keep water from gutters off the wall
- Act on the first splits you see
- Don’t let climbing plants root in the sealant
- Point out the joints to other trades
Give the sealant the cure time we tell you before anything rubs against it. Most exterior sealants skin fast but take longer to cure right through.
If you can see gaps, plants or bare sections in a joint, have it checked. Early work is quicker and leaves a better finish.
Walls and rooflines in Douglastown
Plenty of Scottish homes have harled walls, and where harling meets frames, pipes and other materials, the joint needs a flexible sealant that grips a rough surface. With historic houses such as Glamis Castle (about 2 miles west) nearby, there’s older building stock in the area around Douglastown as well as newer homes. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material.
Historic houses such as Glamis Castle, about 2 miles west, show how far back building around Douglastown goes.
Douglastown is about 3 miles south-west of Forfar, in Angus. Across the DD8 area, we cover external mastic for homes and businesses. Douglastown is one of 40 towns and villages in Angus we cover. For nearby work, see our Dundee page (10 miles or so).
Postcode districts we cover here for external mastic: DD8. If you’re just outside Douglastown, we cover Glamis (2 miles west), Padanaram (3 miles north), Inverarity (3 miles south-east), Forfar (3 miles north-east) and Lownie Moor (4 miles east). We also work in nearby towns such as Arbroath (14 miles east), Carnoustie (12 miles south-east), Kirriemuir (5 miles north-west), Brechin (14 miles north-east), Hunter's Town (12 miles south-east) and Gardynebourg (12 miles south-east).
Around Douglastown
Nearby you will also find Glamis Castle (2 miles west) and Angus Folk Museum (2 miles west). Green spaces nearby include Loch of Forfar and Gallow Hill.
Towns and villages near Douglastown
Also in Douglastown
How it works
When we get to you, we check the joints match what you told us. If we find something unexpected, we talk it through with you first. Most jobs then take a few hours to a few days, depending on the length of joint and the access. Somewhere like Douglastown may be a longer drive, and the journey is planned ahead. Mention tracks, gates, ferries or anything else about the route.
- First we look over the joints with you, agree which to renew and talk through access.
- The old mastic and anything lodged in the joint is removed.
- We clean both faces of the joint and prime them where the product calls for it.
- Closed-cell backing rod is fitted to set the depth and stop three-sided bonding.
- We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.
Getting ready for the visit
- Try not to wet indoor joints just before the visit
- Mention if the joints have been sealed before
- Keep pets and children clear of the area while we work
How to get a quote
If you are in Douglastown and need external mastic, send an email to info@mrmastic.co.uk. Tell us what the problem is and where, and we will agree the price before any work begins.
Related advice
DIY versus a professional finish
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
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.
What affects the quote in Douglastown
Call for a quick quote. What matters most is:
- Mould in or behind the old joints
- How easy the joints are to reach
- How much there is to do
- How much old sealant there is and how hard it is to remove
Combining jobs into one visit is normally more efficient than separate visits, so it’s worth mentioning everything you’d like done. You will get one clear quote for the whole job.
What to tell us for a quote
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- Photos by email, if that is easy
- Access, such as stairs, a lift or height
- If someone has resealed it before
- The type of property
To get a quote, send an email to info@mrmastic.co.uk with the location and a short description of the problem. You will have a clear quote before we start.
For landlords and businesses
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. Several properties can go on one quote.
Letting agents and landlords in Douglastown can book us as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order.