Angus · Scotland
External Mastic in Lownie Moor
We cover Lownie Moor for sealing brickwork movement joints, render, cladding and façade joints. Old sealant removed completely, joints prepared properly and every job guaranteed for a year.
- Sealant that has lost its bond to the brick or render
- Failed sealant between panels on a façade
- Cracked joints where brick meets render or frames
How we handle external mastic in Lownie Moor
We cut out failed sealant, set the joint depth with closed-cell backing rod and reseal with a low-modulus exterior sealant. The colour is chosen to suit the brick or render. We work on façade panels, joints between brick and frames and concrete & block, and common reasons people get in touch are failed seals between different materials and leaking joints around cladding and façade panels.
Older stone buildings need a sealant that suits the stone, not an acetoxy product that can mark or attack it. Newer houses need their movement joints and roofline trims kept sound.
Whatever the size of the job, it’s backed by our one-year guarantee in Lownie Moor and across Angus.
- Location
- Lownie Moor (DD8)
- Wider area
- Angus
- Guarantee
- A year, on every job
- Quotes
- Quoted before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
What affects the quote in Lownie Moor
We don’t publish a price list, because jobs vary so much. The quote depends on:
- How many rooms, windows or areas are involved
- Which sealant suits the joint
- Access and height
- The size of the job
There are no prices on our website, because each job is priced on what it involves. Call for a quick quote and we will talk you through it.
What we need to know
Photos by email are helpful but not essential. Try to tell us:
- Where the property is
- How many joints, rooms or windows are involved
- Any access issues, like height or stairs
- Any previous sealing or DIY work
Getting a quote is simple: tell us what needs doing and where. A few photos by email make the job easier to understand, and we will come back to you with a quote.
When to call us in Lownie Moor
Joints sealed without backing rod, or far too deep, rarely last. Sealant bonded to three sides has nowhere to go and rips as the joint opens.
If you can see any of these, it’s time to have the joints looked at:
- Joints pointed up with cement by mistake
- Moss and dirt in joints with no sealant left
- Panel joints letting water in
- Failed seals between different materials
Around Lownie Moor, as everywhere, external mastic is only as good as the preparation behind it.
Comparing quotes
- What product goes in the joint
- The length of the guarantee
- Whether they’re fully insured
- How hidden problems are handled
What we do, step by step
We work through the job in order: protection first, then preparation, sealing and a tidy-up. For most jobs that takes anything from a few hours to several days, depending on the building and we leave things clean and tidy. In smaller Scottish places, parking is normally less of an issue than access and distance. Let us know how to find you and how to reach the joints, and the visit is planned around that.
- First, the joints are inspected and the access agreed.
- Every bit of old sealant and any mortar or debris is cut out.
- The faces are brushed clean and primed where the product requires it.
- Backing rod sized to the joint goes in to set the depth.
- We apply the sealant, tool it and check the whole run.
Getting ready for the visit
- On commercial sites, let us know about site rules
- Tell us if parking is tricky
- Mention if the joints have been sealed before
How to get a quote
Want a quote for external mastic? Please send an email to info@mrmastic.co.uk and tell us about the job. We’ll explain what we’d do and send you a clear quote before any work starts.
Read more
Why act early in Lownie Moor
A low-modulus sealant is chosen because it moves without pulling hard at the edges. That protects surfaces like brick, render and concrete. A stiffer product can damage the joint edge as it fails. Out of town in Scotland, exposed walls take a lot of weather, and damp in stone or harled walls takes a long time to dry once water gets behind a joint.
Every job is a little different, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all make a difference, and we’ll explain the quote if you ask.
Why choose Mr Mastic in Lownie Moor
- We leave the area clean and tidy
- We agree the colour with you first
- Arbo and Everbuild products
- Homes, businesses and hotels
For landlords and businesses
We also work for property managers and facilities teams in Lownie Moor and across Angus. Several sites can be quoted together, and we’re fully insured for the work.
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.
Surface by surface
Cladding and façade panels
Panel systems often rely on sealant between and around the panels. Each joint gets a sealant that suits the panel and its movement.
Concrete and blockwork
Concrete and block walls shrink as they dry and move with temperature. We reseal their joints with backing rod and a flexible product.
DIY versus a professional finish
If you’ve already had a go yourself, that is fine. We remove it and do the joint properly, so tell us about it when you ask for a quote.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
Also in Lownie Moor
Questions from Lownie Moor
Is there a guarantee on external mastic in Lownie Moor?
All our work, in Lownie Moor and everywhere else, comes with a 12-month guarantee. We are also fully insured and ARBOMaster approved.
Is Lownie Moor within the area you cover?
Yes, we do. We work across all of Scotland, and smaller places are part of that. Longer journeys are simply planned in advance.
Why is there a gap in my brick wall?
Most straight vertical gaps in brickwork are movement joints. It gives the wall room to move.
Will there be a smell?
Possibly a little. Any smell clears as the sealant cures, and ventilation helps.
Will you leave a mess?
Not at all. The area is protected while we work and cleaned up afterwards.
When will the joints need doing again?
It varies with how exposed the wall is and how much the joint moves. Signs to watch for are cracking, hardening and gaps at the edges.
Can landlords and businesses book you?
Yes, regularly. We can quote for several properties at once.
Should I try DIY first?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. Most DIY failures come from sealing over old material, wet joints or too much sealant.
External mastic in Lownie Moor: local notes
Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and sound outside sealant is part of that. Harled (roughcast) walls are common in Scotland, and where harling meets frames, pipes and other materials, the joint needs a flexible sealant that grips a rough surface.
For jobs in and around Lownie Moor, choosing the right material for each joint is as important as a tidy finish.
Lownie Moor is about 2 miles south-east of Forfar, in Angus. Jobs in Lownie Moor get the same care as everywhere else we work: old sealant removed completely, careful preparation and a 12-month guarantee. 40 places in Angus are on our list. Our Dundee page covers work nearby.
Here we cover the DD8 postcode area for external mastic. Neighbouring places we cover for external mastic include Kingsmuir (1 mile north), Hillend (1 mile east), Craichie (2 miles south-east), Forfar (2 miles north-west) and Lunanhead (2 miles north). We also work in nearby towns such as Arbroath (11 miles south-east), Carnoustie (10 miles south-east), Kirriemuir (7 miles north-west), Brechin (10 miles north-east), Hunter's Town (10 miles south-east) and Gardynebourg (10 miles south-east).
Around Lownie Moor
In Lownie Moor, that means homes and buildings near Reid Park. Other landmarks nearby include Forfar Castle (2 miles north-west) and Forfar Infirmary (1.6 miles north-west). Not far away are Loch Fithie.