North Lanarkshire · Scotland

External Mastic in Plains

We cover Plains for sealing brickwork movement joints, render, cladding and façade joints. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.

  • Brick movement joints where the sealant has split
  • Plants rooting in failed movement joints
  • Sealant pulling away from one side of the joint

External mastic for Plains homes and businesses

Landlords, agents and businesses in Plains

Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance that we can handle for you.

Landlords and agents in Plains can book us as well as householders. Resealing between tenancies is a simple way to keep a property in good order before the next move-in.

External mastic for homes and businesses in Plains

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. If you’re dealing with failed seals between different materials and joints with sealant missing in places, we can put it right, whatever the surface.

Across smaller places in Scotland, stone and harled cottages, farm buildings and newer houses often stand exposed to wind and rain. Outside joints on exposed walls work hard.

The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we will sort it.

Where
Plains (ML6)
Wider area
North Lanarkshire
Cover
12 months on all our work
Quotes
A clear price before we start
Email
info@mrmastic.co.uk
Page updated
26 October 2026
Mr Mastic applicators lined up beside the company vans, one holding a sealant gun

Should I try it myself first?

If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly, so tell us about it when you ask for a quote.

Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.

Looking after it afterwards

Looking after new joints is easy:

  • Never let anyone fill a movement joint with mortar
  • Deal with leaking gutters that soak the joints below
  • Act on the first splits you see
  • Do not let climbing plants root in the sealant

Look over the joints once a year, ideally after winter. Watch for splits, edges coming away or growth in the joint.

An open movement joint lets rain into the wall every time it pours. That can lead to damp patches, staining and frost damage, all bigger jobs than a reseal.

Your questions about external mastic in Plains

Will you come out to Plains?

Yes, we do. We work across all of Scotland, from towns to the smallest places. Longer journeys are simply planned in advance.

Do you work for landlords with property near Drumgelloch station?

Yes. We work for landlords and letting agents as well as householders, and several properties can be quoted together. You can email us at info@mrmastic.co.uk with the details for a clear quote.

Can you quote for more than one area?

Yes, and it often makes sense. Doing several areas at once is usually more efficient, so mention them when you ask for a quote.

Do you take out the old sealant first?

Yes. We cut out all the old sealant and clean the joint before resealing.

How do I get a quote for external mastic in Plains?

Every job is different, so each one gets its own quote. For a quick quote, email us at info@mrmastic.co.uk with a short description of the job.

Are you ARBOMaster approved?

Yes. We are an ARBOMaster approved applicator.

Do you seal joints where cladding meets other materials?

Yes. The old joint is removed, both surfaces cleaned and primed where needed, and a flexible sealant applied. The colour is chosen to suit.

Can you match the colour of my brickwork?

We aim for a joint that suits the wall rather than one that jumps out. We will talk through colour options before any work starts, matched as closely as the range allows.

Walls and rooflines in Plains

Plenty of Scottish homes have harled walls, and joints where harling meets other materials need a sealant that can grip and flex. Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and failed outside joints work against that.

If you look after a building such as Airdrie Academy, its movement joints, gutters and trims need looking after like any other building’s. For an older house near a landmark such as Clarkston Church, old and new materials meet at the roofline and walls, which is where sealant earns its keep. Rented homes near Drumgelloch station change hands often, and split movement joints are easy to miss on a rental until damp shows inside.

Plains is about 2 miles north-east of Airdrie, in North Lanarkshire. Whether you are in the middle of Plains or further out, external mastic is available for homes and businesses alike. We cover 89 towns and villages across North Lanarkshire, from the larger towns to small villages. For nearby work, see our Glasgow page, about 13 miles away.

Our applicators cover all of the ML6 postcode area for external mastic. Whether your property is on Main Street, Station Road and East Avenue or anywhere close by, we can help. Neighbouring places we cover for external mastic include Airdriehill (1 mile west), Moffat Mills (1 mile south), Gartness (2 miles south), Airdrie (2 miles south-west) and Burnfoot (2 miles west). Within a short drive, we also cover Motherwell (6 miles south), Cumbernauld (5 miles north-west), Coatbridge (4 miles south-west), Wishaw (7 miles south), Bellshill (6 miles south-west) and Kilsyth (8 miles north-west).

Landmarks near Plains

For rail, the closest station is Drumgelloch station, roughly 1.2 miles south-west. A little further out are Wester Moffat Hospital (1 mile south) and Weavers Cottage Museum (2.2 miles south-west). The countryside around Plains includes Black Loch.

Map of Plains © OpenStreetMap contributors

What we cannot put right

It helps to know what we cannot do too:

  • Cracking across the wall rather than at a joint
  • Loose or hollow render, which needs re-rendering
  • Damp from another source, such as a leaking gutter or a bridged damp-proof course

If in doubt, drop us a line at info@mrmastic.co.uk and we will say what we think before booking.

Surfaces we seal

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

Why deal with it now?

Resealing a run of joints in one go is normally better than patching one at a time. Joints of the same age tend to fail together. In a place like Plains, small leaks are easy to put off, but water through a failed joint keeps working away until it’s fixed.

What you pay reflects the work, not guesswork. That’s why we ask about the job first and send you a clear quote before work begins.

What you get with us

  • Rated 4.9 stars on Google
  • You choose the colour before work begins
  • Over 20 years’ experience
  • Old sealant always removed completely

Take a look at our cost guide or our reviews.

Quotes for external mastic in Plains

We do not publish a price list, because no two jobs are the same. The quote depends on:

  • Access and height
  • The old material and how stubborn it is
  • The number and length of the joints
  • Mould in or behind the old joints

Doing several joints on one visit normally makes better use of the time than several visits. We’ll send you a clear quote for the lot.

What to tell us for a quote

Photos help, but a description is a good start. Try to tell us:

  • If someone has resealed it before
  • Photos by email, if that’s easy
  • If it’s domestic, commercial or a hotel
  • The rough size of the job

There’s no standard price list, as no two jobs are quite the same. Instead, we send you a clear quote for your job. To arrange one, send an email to info@mrmastic.co.uk.

The process

Every visit runs the same way: we look at the joints together, protect the area around them, do the work and tidy away. It usually takes a few hours to a few days, depending on the length of joint and the access. Around Plains, distance and access matter more than parking. Let us know how to find you and how to reach the joints, and the visit is planned around that.

  1. We start by walking round the building and agreeing the joints and the access.
  2. Every bit of old sealant and any mortar or debris is cut out.
  3. Joint faces are cleaned back and primed if the sealant needs it.
  4. We fit closed-cell backing rod to control the depth.
  5. The exterior sealant is applied, tooled and checked along its length.

Preparing for the visit

  • Try not to wet indoor joints just before the visit
  • Keep pets and children clear of the area while we work
  • Let us know about earlier repairs to the joints

Get a quote

The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and add pictures by email if you can.

Ask for a quote

Related advice

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