Glasgow · Scotland
External & façade joints in Netherton, Glasgow
Professional external mastic in and around Netherton, with old sealant always removed completely and a 12-month guarantee.
- Moss and dirt in joints with no sealant left
- Rain getting behind render or cladding at a joint
- Brick movement joints where the sealant has split
Looking after it afterwards
A little care helps the new joints last. We recommend:
- Do not let climbing plants root in the sealant
- Get split or bare joints resealed while the damage is small
- Walk round the building once a year and look at the joints
- Show decorators and builders where the movement joints are
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.
Leave a failed movement joint and water keeps getting into the wall. Over time it can mean damp inside, stained render or frost-damaged brick.
External mastic in Netherton
Low-level joints can generally be done from the ground. Where joints are higher up, tell us about the building when you get in touch and we will confirm what’s needed to reach them safely. We work on joints between brick and frames, copings & trims and render & cladding joints, and the jobs we see most are rigid filler in a joint that should flex and joints with sealant missing in places.
On a four-storey tenement, gutter joints are a long way from the street, so a leaking joint can run down the stone for months before anyone notices. For a building in Netherton, access is planned first, and shared parts may need the other owners to agree.
There’s a 12-month guarantee on every job, large or small.
- Place
- Netherton (G13, G61, G12)
- Region
- Glasgow
- Cover
- One year on every job
- Quotes
- Quoted before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Walls and rooflines in Netherton
Plenty of Scottish homes have harled walls, and joints where harling meets other materials need a sealant that can grip and flex. The Tenements (Scotland) Act 2004 sets out how owners share the upkeep of common parts like the roof and outside walls, and many buildings use a factor to arrange it. The title deeds set out which parts are common.
Letting a property close to Westerton station? Then split movement joints are easy to miss on a rental until damp shows inside. Homes close to Knightswood St Margaret's Parish Church include some older properties, and old and new materials meet at the roofline and walls, which is where sealant earns its keep. Schools such as Knightswood Secondary School are buildings too, and movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Netherton is about 2 miles south of Bearsden, in Glasgow. Wherever you are in the G13 postcode area, we can carry out external mastic at your property. We cover 183 towns and villages across Glasgow, large and small.
Here we cover the G13, G61 and G12 postcode area for external mastic. We cover properties on Ilay Road, Saxon Road and Cedric Road and the roads around them. Netherton is on the A82, which makes it straightforward to reach with everything needed for external mastic. Other places close to Netherton include Temple (1 mile south), Anniesland Cross (1 mile south), Anniesland (1 mile south), Knightswood (1 mile south-west) and Dawsholm (1 mile east). Larger places within reach include Glasgow (4 miles south-east), Woodlands (3 miles south-east), Woodside (3 miles south-east), Garnethill (3 miles south-east), Anderston (3 miles south-east) and Calton (5 miles south-east).
Near you in Netherton
In Netherton, that means homes and buildings near Lock 27 pub, Jordanhill College and Dawsholm Park and the streets around them. The closest station to Netherton is Westerton station, about 0.6 miles north-west. Nearby you’ll also find Partick Castle (2.2 miles south-east) and Glasgow Museum of Transport (2.4 miles south-east). For a walk, there’s Castle Hill and Kilmardinny.
Landlord and commercial work in Netherton
Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. We have worked in hotels as well as homes and businesses.
We also work for property managers and facilities teams. Several sites can go on one quote.
Towns and villages near Netherton
More services for Netherton
Your questions about external mastic in Netherton
How do repairs to the shared parts of a tenement in Netherton get organised?
It generally goes through the owners together, or through the factor if the building has one. The Tenements (Scotland) Act 2004 sets the rules for common parts if the deeds don’t, and we can quote for the factor or the owners directly.
Do you cover Netherton for external mastic?
Yes. Our work covers the whole of Scotland, and Netherton is part of that. You can email us at info@mrmastic.co.uk and tell us what needs doing, and we’ll give you a clear price.
Can a movement joint be filled with mortar?
No, not if it’s a movement joint. Pointing it stops it working, and the wall may crack nearby. We’ll reseal it with a flexible sealant.
Are you ARBOMaster approved?
Yes. We are ARBOMaster approved, the scheme for applicators of Arbo sealants.
What sealant do you use?
Products from Arbo and Everbuild, among others, chosen to suit the joint. We’ll tell you what we’re using and why.
Will the new joint stand out?
The aim is a neat, even joint in a colour that suits the wall. Colour is agreed with you before we begin, matched as closely as the range allows.
Can you do several jobs on one visit?
Yes. Just list everything you need.
Can new sealant go over the old?
No. Fresh sealant does not stick to old sealant, and it traps any mould or water underneath. It all has to come out first.
Should I try it myself first?
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
A DIY attempt doesn’t rule out a professional job. We cut it out and start again.
When it isn’t the sealant
We will not take on work that won’t last, so these are the limits:
- Damp that isn’t coming from the joint
- Subsidence or other structural problems
- Cracks in the bricks or render themselves, away from the joints
If you are not sure, just send an email to info@mrmastic.co.uk and we will give you a straight answer before you book.
Where we work in Netherton
- Render & cladding joints
- Façade panels
- Copings & trims
- Joints between brick and frames
- Concrete & block
- Brickwork movement joints
What the job involves on each surface
Render joints
Render is weaker at the surface than brick, so a sealant that stretches easily protects the edges. Priming is done where the sealant calls for it.
Cladding and façade panels
Cladding and façade panels are usually separated by sealed joints. We reseal them with a sealant suited to the panel material.
How the visit works
A visit follows a simple pattern: we check the joints, protect the area around them, carry out the job and tidy away. It normally takes a few hours to a few days, depending on the length of joint and the access. Parking in city streets around Netherton can be tight or controlled, so it helps to know about permits or nearby bays. For flats, mention the door entry system and any shared-stair arrangements.
- We start by walking round the building and agreeing the joints and the access.
- We cut out the old mastic and rake out anything in the joint.
- Joint faces are cleaned back and primed if the sealant needs it.
- Backing rod sized to the joint goes in to set the depth.
- We apply the sealant, tool it and check the whole run.
Preparing for the visit
- Mention any tricky access
- For business premises, tell us about site rules or sign-in
- For indoor joints, keep the area dry beforehand if you can
Ask for a quote
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we will talk you through what we’d do. Whenever you’re ready, send an email to info@mrmastic.co.uk.
Related advice
Quotes for external mastic in Netherton
We quote each job individually. This is what makes a difference:
- The number and length of the joints
- The old material and how stubborn it is
- Whether there’s mould to deal with
- Any working-time requirements on site
Doing several joints on one visit normally makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. You will get one clear quote for the whole job.
Asking for a quote
Photos by email are helpful but not essential. Please mention:
- Whether it’s a home or a business
- Pictures of the joints, sent by email
- How we’d reach the joints
- Whether it has been sealed before
For a quote, email us at info@mrmastic.co.uk with the location and a short description of the problem. You will have a clear quote before any work starts.