Aberdeenshire · Scotland
Luthermuir External Mastic
Sealing brickwork movement joints, render, cladding and façade joints in Luthermuir, with a one-year guarantee on every job. Ask us for a quote.
- Damp patches traced to an open external joint
- Joints with sealant missing in places
- Hard, crazed mastic that has stopped moving
What happens if it’s left?
Mortar or ordinary filler might look like a quick way to close an open joint, but it locks the joint solid. The movement then cracks the brickwork or render nearby. The correct repair is a flexible sealant with the right backing. Exposed walls in smaller Scottish places take a lot of wind and rain, and damp in stone or harled walls takes a long time to dry once water gets behind a joint.
No two jobs are quite the same, so we quote each one individually. Size, access and the product the joint needs all play a part.
Why Luthermuir customers choose us
- We never seal over old sealant
- Sanitary silicone with an anti-fungal additive in wet areas
- Fully insured
- Colour agreed with you before we start
About our external mastic in Luthermuir
Ground-floor and low-level joints are straightforward to reach. Where joints are higher up, tell us about the building when you get in touch and we’ll confirm what’s needed to reach them safely. If you have rigid filler in a joint that should flex and sealant that has lost its bond to the brick or render, we can help.
Across smaller places in Scotland, stone and harled cottages, farm buildings and newer houses often stand exposed to wind and rain. Gutter joints and wall joints take a battering.
Every job comes with a 12-month guarantee, wherever you are in Aberdeenshire.

- Location
- Luthermuir (AB30)
- Wider area
- Aberdeenshire
- Cover
- One year on every job
- Quote
- A clear quote up front
- info@mrmastic.co.uk
- Updated
- 26 October 2026
What affects the cost of external mastic
The quote reflects the job in front of us. We take into account:
- How many rooms, windows or areas are involved
- Working hours on commercial sites
- Whether there’s mould to deal with
- Whether the work is at height
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. You’ll know the price before we begin.
What to tell us for a quote
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- Whether it’s a home or a business
- What the problem is, such as mould, gaps, leaks or cracking
- The rough size of the job
- How we’d reach the joints
Asking for a quote is easy: let us know what needs doing and where and its rough size. A few pictures by email make the job easier to understand.
Places near Luthermuir
Other services in Luthermuir
Different surfaces, different methods
Brickwork movement joints
Brick walls have vertical movement joints to absorb expansion. They’re resealed over backing rod with a low-modulus sealant in a colour to suit the brick.
Copings and trims
Joints in copings, parapets and trims are exposed to the worst of the weather. We reseal them with an exterior sealant suited to the material.
Luthermuir: your questions answered
Can you help a landlord with a rental near Laurencekirk station?
Yes. We work for landlords and agents as well as homeowners, and several properties can go on one quote. You can send an email to info@mrmastic.co.uk with the details for a clear quote.
Do you cover Luthermuir for external mastic?
Yes. Our work covers the whole of Scotland, and Luthermuir is part of that. You can drop us a line at info@mrmastic.co.uk and let us know what needs doing.
Can you work on commercial sites?
Yes. Larger jobs can be planned room by room or area by area.
Can I add another job to the visit?
Of course. Doing several areas at once is normally more efficient, so mention them when you ask for a quote.
Can you seal over the old sealant?
No, because it fails. We remove every bit of old sealant first, so the new joint bonds to clean surfaces.
Can I do it myself?
It depends on the job. High-level, external movement and fire-rated joints are professional jobs.
Do you hold any approvals?
Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.
Should I point up the gap in my brickwork?
No, not where the gap is a movement joint. Pointing it stops it working, and the wall may crack nearby. We will reseal it with a flexible sealant.
What external mastic looks like in Luthermuir
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. Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and failed outside joints work against that.
If you let a flat or house near Laurencekirk station, split movement joints are easy to miss on a rental until damp shows inside. Homes close to Luthermuir Chapel include some older properties, and old and new materials meet at the roofline and walls, which is where sealant earns its keep.
Luthermuir is about 7 miles north-west of Montrose, in Aberdeenshire. Luthermuir gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a one-year guarantee. 161 places in Aberdeenshire are on our list, large and small. We also work in Dundee, around 28 miles away.
Our applicators cover all of AB30 for external mastic. External mastic is available to properties on Main Street, Church Road and School Road. We also cover the places around Luthermuir: Sauchieburn (1 mile north-east), Marykirk (2 miles south-east), Edzell Woods (3 miles west), Craigo (3 miles south-east) and Fettercairn (3 miles north). Within a short drive, we also cover Montrose (7 miles south-east), Inverbervie (11 miles east), St Cyrus (6 miles south-east), Hillside (5 miles south-east), Ferryden (8 miles south-east) and Johnshaven (8 miles east).
Landmarks near Luthermuir
The closest station to Luthermuir is Laurencekirk station, about 4 miles north-east. Other landmarks nearby include Stracathro Hospital (3.1 miles south-west) and Inglismaldie Castle (1.5 miles south-west). Green spaces nearby include Duns Dish.
When something else is needed
Sealant is not the answer to every problem, and we’d rather say so up front. It won’t solve:
- Render that’s blown, hollow or coming away
- Cracks in the bricks or render themselves, away from the joints
- Structural movement, which needs a surveyor or engineer
If you’re not sure, just email us at info@mrmastic.co.uk and we will give you a straight answer.
What we seal
- Façade panels
- Concrete & block
- Copings & trims
- Brickwork movement joints
- Joints between brick and frames
- Render & cladding joints
Landlords, agents and businesses in Luthermuir
Letting agents often deal with us directly. Tell us the address, the job and how access works and we’ll give you a quote.
If you manage several properties in or around Luthermuir, jobs at different addresses can go on one quote. Send us the addresses and the work at each, and pictures by email help.
What we do, step by step
Before we leave, we go over the finished joints with you. The visit itself 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. Outside jobs in Luthermuir need a dry day, because sealant will not bond to a wet joint, so external jobs may need to move if the day turns wet. Indoor work goes ahead whatever the weather.
- We look at every joint and agree a colour to suit the wall.
- We take out the old sealant until the faces are sound.
- Backing rod goes in so the sealant can stretch between the two faces.
- Primer is applied wherever the sealant needs it.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
Before we arrive
- Tell us if parking is tricky
- Plan for the work area to be out of bounds to pets and children
- For business premises, tell us about site rules or sign-in
Get a quote
Every job is quoted individually. Just email us at info@mrmastic.co.uk with the details and send photos if you have them.
Read more
Can I do it myself?
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly, so just mention it when you contact us.
