North Lanarkshire · Scotland

External Mastic in Wattston

We cover Wattston for sealing brickwork movement joints, render, cladding and façade joints. Old material cut out, joints cleaned and sealed neatly and a 12-month guarantee.

  • Plants rooting in failed movement joints
  • Failed seals between different materials
  • Sealant pulling away from one side of the joint

Trusted external mastic in Wattston

When something else is needed

We will always be straight with you, so here’s what new sealant will not do:

  • Walls that need new movement joints cut into them
  • Cracks in the bricks or render themselves, away from the joints
  • Damp that isn’t coming from the joint

If in doubt, send an email to info@mrmastic.co.uk and we’ll say what we think.

Where we work in Wattston

  • Façade panels
  • Joints between brick and frames
  • Copings & trims
  • Concrete & block
  • Render & cladding joints
  • Brickwork movement joints

External mastic for homes and businesses in Wattston

Joints between dissimilar materials, like brick against render or concrete against a steel frame, see movement from both sides. A flexible exterior sealant takes up that movement where mortar or filler would crack. Typical jobs include movement joints with cracked, split or missing sealant and sealant that has lost its bond to the brick or render, on concrete & block, joints between brick and frames and copings & trims.

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.

All our work is covered by our 12-month guarantee.

The Mr Mastic team in navy uniforms in front of three Mr Mastic vans
Where
Wattston (ML6)
Region
North Lanarkshire
Guarantee
A year, on every job
Price
A clear price before any work starts
Email
info@mrmastic.co.uk
Last updated
26 October 2026

Looking after it afterwards

Once the sealant has cured, a few habits help it last:

  • Have failed joints looked at early
  • Keep high-pressure jets off the joints
  • Check the sealant is paintable before painting near it
  • Keep soil, plants and ivy away from the joints

Avoid pressure-washing straight into the joints. High-pressure water can lift the edges.

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.

How we quote for external mastic

For a quick quote, just ask. What matters most is:

  • How many areas need sealing
  • When we can work, for business premises
  • How much old sealant there is and how hard it is to remove
  • Whether the work is at height

There are no prices on our website, because the cost depends so much on the job itself. For a quick quote, please drop us a line at info@mrmastic.co.uk.

Helping us quote

Before you ask for a quote, have a think about:

  • Any access issues, like height or stairs
  • The type of property
  • Roughly how big the job is
  • Where the property is

Asking for a quote is easy: let us know the job and the location, and roughly how big it is. Photos by email help us understand the job.

Should I try it myself first?

Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.

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

Work for landlords, hotels and businesses

Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.

Whether it’s one flat or a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.

External mastic in Wattston: local notes

Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and failed outside joints work against that. Harled (roughcast) walls are common in Scotland, and joints where harling meets other materials need a sealant that can grip and flex.

Schools such as Airdrie Academy are buildings too, and its movement joints, gutters and trims need looking after like any other building’s. If you let a flat or house near Greenfaulds station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.

Wattston is about 3 miles north of Airdrie, in North Lanarkshire. Wherever you are in the ML6 postcode area, we can carry out external mastic at your property. Our North Lanarkshire coverage runs to 89 places, and Wattston is one of them. For nearby work, see our Glasgow page (13 miles or so).

Our applicators cover all of ML6 for external mastic and the streets around it. Streets in the area include Greengairs Road, Meikle Drumgray Road and Roadside Place, all of which we cover. If you’re just outside Wattston, we cover Riggend (1 mile west), Greengairs (1 mile north-east), Crosshouse (1 mile north-west), Upperton (2 miles north-east) and Greenfaulds (3 miles north-west). We also work in nearby towns such as Motherwell (8 miles south), Cumbernauld (3 miles north-west), Coatbridge (5 miles south-west), Airdrie (3 miles south), Wishaw (9 miles south) and Bellshill (7 miles south).

Near you in Wattston

The nearest railway station is Greenfaulds station, roughly 2.3 miles north-west of the centre. Other landmarks nearby include Wester Moffat Hospital (2.8 miles south) and Palacerigg House Museum (1.9 miles north).

Map of Wattston © OpenStreetMap contributors

Different surfaces, different methods

Brickwork movement joints

People sometimes point up a brick movement joint by mistake. If that is happened, we rake it out and reseal it properly where it can be done safely.

Joints between dissimilar materials

Joints where frames, sills or panels meet the wall are common leak points. The old joint is removed and a sealant that bonds to both sides goes in.

FAQs for Wattston

Do you cover Wattston for external mastic?

Yes, Wattston is within the area we cover. We work across all of Scotland. Just email us at info@mrmastic.co.uk with a few details of the job.

I let a flat near Greenfaulds station. Can you help?

Yes. We work for letting agents and landlords as well as homeowners. You can drop us a line at info@mrmastic.co.uk with the details for a clear quote.

What does external mastic cost?

Size, access and the old material all affect the cost. Call for a quick quote and we will talk you through it.

Where is Mr Mastic based?

Mr Mastic is based in Crawley. Our applicators cover Wattston, along with the rest of our area.

Can I do it myself?

Sometimes. Preparation is everything: all the old sealant out, and a clean, dry joint. If it doesn’t work out, we can redo it.

Are you an approved applicator?

Yes. We are approved under the ARBOMaster scheme, the approved applicator scheme for Arbo sealants.

What do you put in the joint?

Products from Arbo and Everbuild, among others, picked for each joint. We explain the product when we quote.

Are you fully insured?

Yes. Full insurance covers our work.

How it works

You don’t need to clear the whole room or building, only the area right around the joints. We protect the rest, and the work takes a few hours to a few days, depending on the length of joint and the access in most cases. For a place like Wattston, longer drives are planned in advance. Mention tracks, gates, ferries or anything else about the route.

  1. We look at every joint and agree a colour to suit the wall.
  2. Failed sealant is removed back to clean, sound faces.
  3. Backing rod goes in so the sealant can stretch between the two faces.
  4. Primer is applied wherever the sealant needs it.
  5. A low-modulus exterior sealant is gunned in and tooled to a neat finish.

Before we arrive

  • Mention any parking rules near the property
  • Mention if the joints have been sealed before
  • Mention any leaks or damp you’ve noticed

Getting a quote

The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and add photos by email if you can.

Get a quick quote

Related advice

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