South Lanarkshire · Scotland

External & façade joints in Nerston, South Lanarkshire

Sealing brickwork movement joints, render, cladding and façade joints in Nerston, with a 12-month guarantee on every job. Call for a quick quote.

  • Joints with sealant missing in places
  • Hard, crazed mastic that has stopped moving
  • Water getting into walls through failed joints

External mastic in Nerston

External mastic in Nerston

A movement joint is only as good as its depth. Closed-cell backing rod sets the depth and stops the sealant sticking to the back, so it bonds to the two sides only and can stretch. If you have sealant pulling away from one side of the joint and cracked joints where brick meets render or frames, we can put it right.

Older stone buildings need a sealant that suits the stone, not an acetoxy product that can mark or attack it. On newer homes, the movement joints and roofline trims are what need watching.

All of our work is guaranteed for twelve months.

The Mr Mastic team in navy uniforms in front of three Mr Mastic vans
Location
Nerston (G74)
Region
South Lanarkshire
Guarantee
12 months on all our work
Price
Quoted before any work starts
Email
info@mrmastic.co.uk
Updated
26 October 2026

Surface by surface

Render joints

Render is weaker at the surface than brick, so a low-modulus sealant is kinder to the joint edges. We prime where the product needs it.

Cladding and façade panels

Panels heat up and cool down quickly, so the joint sealant has to cope with frequent movement. We choose the product to suit.

Looking after it afterwards

Joint life depends on how it’s used and looked after. We suggest:

  • Keep movement joints as flexible joints, not mortar
  • Fix overflowing gutters above sealed joints
  • Act on the first splits you see
  • Walk round the building once a year and look at the joints

Make sure anyone working on the wall later knows where the movement joints are. They should be kept open and resealed, not filled.

Once a joint can’t move, the wall finds another way, often as cracks near the joint. Resealing it early helps prevent that.

Work for landlords, hotels and businesses

Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Resealing at the right time is simple maintenance that we can handle for you.

We work for landlords and letting agents as well as householders. Resealing between tenancies is a simple way to keep a property in good order.

Signs you need external mastic in Nerston

Every building moves. Brickwork grows a little over the years, blockwork and concrete shrink, and all of it moves with heat and moisture. All of that ends up in the joint sealant.

People generally contact us after spotting one of these:

  • Rain getting behind render or cladding at a joint
  • Joints pointed up with cement by mistake
  • Sealant that has lost its bond to the brick or render
  • Brick movement joints where the sealant has split

Managing a site like St Andrew's and St Bride's High School? Then movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.

What your quote should include

  • What preparation is included
  • How hidden problems are handled
  • Are they insured?
  • Whether they seal over old material or remove it

How to choose a mastic man

Your questions about external mastic in Nerston

I let a flat near East Kilbride station. Can you help?

Yes, we work for landlords and letting agents. You can send an email to info@mrmastic.co.uk with the address and a few details, and we’ll give you a fixed price before we start.

Will you come out to Nerston?

Yes, smaller places are covered as well as towns. Our work covers the whole of Scotland. Just mention lanes, gates or anything else about the route when you book.

How long should I leave it?

Many sealants skin over quickly but take longer to cure fully. We will give you the cure time for the product we used.

Can new sealant go over the old?

No. We remove every bit of old sealant first, so the new sealant bonds properly.

Do you do commercial work?

Yes. Larger jobs can be planned room by room or area by area.

How long does external mastic take?

As a guide, most jobs take anything from a few hours to several days, depending on the building. Bigger jobs take longer.

How much does external mastic cost in Nerston?

There’s no set price, as it depends on the job: its size, the old material, access and the product needed. We agree the price before any work begins.

Are you fully insured?

Yes. We are fully insured, and we can confirm the details when we quote.

What external mastic looks like in Nerston

Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and failed outside joints work against that. Nerston is in the west of Scotland, which is wetter than the east, which means movement joints and outside wall joints has to cope with a lot of rain.

If you let a flat or house near East Kilbride station, split movement joints are easy to miss on a rental until damp shows inside.

Nerston is about 2 miles north-east of East Kilbride, in South Lanarkshire. From the centre of Nerston to the outskirts, we cover external mastic for every kind of property, from flats and houses to offices and hotels. Nerston is one of 139 towns and villages in South Lanarkshire where we work. You can also see our page for Glasgow, roughly 6 miles from Nerston.

Postcode districts we cover here for external mastic: G74. External mastic is available to properties on East Nerston Court, East Nerston Grove and Glasgow Road and the roads around them. We also cover the places around Nerston: Stewartfield (1 mile south-west), East Mains (1 mile south), The Village (2 miles south), St Leonards (2 miles south) and West Mains (2 miles south-west). We also work in nearby towns such as Hamilton (4 miles east), Uddingston (4 miles north-east), Blantyre (3 miles east), Larkhall (8 miles south-east), Carluke (13 miles east) and Rutherglen (3 miles north-west).

What’s near Nerston

We work in homes and buildings around Cambuslang Park. The closest station to Nerston is East Kilbride station, roughly 1.5 miles south-west. Well-known places in the area include Hairmyres Hospital (2.9 miles south-west) and Kingsgate Retail Park (within half a mile south-west). The countryside around Nerston includes Cathkin Braes.

Map of Nerston © OpenStreetMap contributors

Can I do it myself?

The difference is mostly in the preparation and the 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.

Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.

How the visit 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. In smaller Scottish places, parking is generally less of an issue than access and distance. Tell us how to find the property and how to reach the work.

  1. We start by walking round the building and agreeing the joints and the access.
  2. We cut out the old mastic and rake out anything in the joint.
  3. Joint faces are cleaned back and primed if the sealant needs it.
  4. Backing rod sized to the joint goes in to set the depth.
  5. The exterior sealant is applied, tooled and checked along its length.

Preparing for the visit

  • Let us know about stairs, lifts or work at height
  • Tell us if parking is tricky
  • Let us know about earlier repairs to the joints

Get a quote

If you’re in Nerston and need external mastic, email us at info@mrmastic.co.uk. A short description of the job and where it is helps us quote, and you’ll get a clear quote before any work starts.

Ask for a quote

Advice

What affects the cost of external mastic

We quote each job individually. This is what makes a difference:

  • The amount of work
  • Any mould that needs treating
  • How many areas need sealing
  • The type of sealant required

Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, any mould to treat, and whether we need extra access for height. We take all of that into account in your quote.

What we need to know

You do not need to know the technical terms. It helps if you can tell us:

  • Where the property is
  • Roughly how big the job is
  • If someone has resealed it before
  • What the problem is, such as mould, gaps, leaks or cracking

The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job