North Lanarkshire · Scotland

External Mastic in Carrickstone

We cover Carrickstone for sealing brickwork movement joints, render, cladding and façade joints. Old sealant removed completely, joints prepared properly and a 12-month guarantee.

  • Hard, crazed mastic that has stopped moving
  • Movement joints filled with mortar instead of sealant
  • Gaps where render, brick and frames meet

External mastic in Carrickstone

Why act early in Carrickstone

Water gets in through a failed movement joint and can run behind render or cladding. Dealing with it early keeps the repair to the joint, instead of the wall and finishes around it. When the nearest tradesperson is a drive away, it’s tempting to leave a small leak, but water behind a failed seal does the most damage when nobody’s watching.

Combining jobs into one visit generally makes better use of the time than several visits. You’ll get one clear quote for the whole job.

Why choose Mr Mastic in Carrickstone

  • Sanitary silicone with an anti-fungal additive in wet areas
  • Rated 4.9 stars on Google
  • Approved under the ARBOMaster scheme
  • You choose the colour before work begins

See what affects the cost or what customers say.

About our external mastic in Carrickstone

Where two different materials meet, such as brick and render or blockwork and metal, they move at different rates. A flexible sealant bridges the two. If you are dealing with joints pointed up with cement by mistake and cracked joints where brick meets render or frames, we can help, whatever the surface.

In and around a place like Carrickstone, many buildings face open ground and take the full weather. Gutter joints and wall joints take a battering, so they need a sealant that moves with the building.

Big or small, it’s backed by our one-year guarantee.

Place
Carrickstone (G68, G67)
Wider area
North Lanarkshire
Cover
A year, on every job
Quote
Quoted before any work starts
Email
info@mrmastic.co.uk
Page updated
26 October 2026
Eleven members of the Mr Mastic team standing in front of branded white vans

Honest limits

We’d rather tell you now than do work that will not last, so here’s what sealant cannot put right:

  • Structural movement, which needs a surveyor or engineer
  • Damp from another source, such as a leaking gutter or a bridged damp-proof course
  • Failed render or damaged cladding panels

Not sure which it is? You can send an email to info@mrmastic.co.uk and we will tell you honestly.

Surfaces we seal

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

External mastic in Carrickstone: local notes

Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and failed outside joints work against that. Plenty of Scottish homes have harled walls, and where harling meets frames, pipes and other materials, the joint needs a flexible sealant that grips a rough surface.

For landlords with property near Cumbernauld station, outside joints that have cracked can let damp into a rental, so check them between lets.

Carrickstone is about 1 mile north of Cumbernauld, in North Lanarkshire. Homes, rented property, offices and hotels in Carrickstone can book us for external mastic, old or new, large or small. Every job comes with our 12-month guarantee. 89 places in North Lanarkshire are on our list. There’s also a page for Glasgow, about 13 miles away.

We work across G68 and G67 for external mastic and the streets around it. External mastic is available to properties on Cawder Road, Darley Road and Hayston Road. We also cover the places around Carrickstone: Cumbernauld Village (1 mile east), Westerwood (1 mile north-east), Cumbernauld (1 mile south), Carbrain (1 mile south) and Abronhill (2 miles east). Larger places within reach include Motherwell (12 miles south), Coatbridge (8 miles south), Airdrie (7 miles south), Wishaw (13 miles south), Bellshill (10 miles south) and Kilsyth (3 miles west).

What’s near Carrickstone

In Carrickstone, that means homes and buildings near The Masonic Arms. The nearest railway station is Cumbernauld station, about 1.5 miles south. Other landmarks nearby include Kilsyth Victoria Cottage Hospital (3.1 miles west) and Cumbernauld Museum (1.1 miles south). Open spaces near Carrickstone include Bar Hill.

Map of Carrickstone © OpenStreetMap contributors

What happens on the day

Our applicators work methodically: protect, prepare, seal, tidy. For most jobs that takes a few hours to a few days, depending on the length of joint and the access and we leave things clean and tidy. Somewhere like Carrickstone may be a longer drive, and the journey is planned ahead. Tell us about tracks, gates, a ferry crossing or anything unusual about getting there.

  1. We look at every joint and agree a colour to suit the wall.
  2. We take out the old sealant until the faces are sound.
  3. Closed-cell backing rod is pushed in so the sealant bonds to two sides only.
  4. We prime the faces where required.
  5. A low-modulus exterior sealant is gunned in and tooled to a neat finish.

Before we arrive

  • Mention any leaks or damp you’ve noticed
  • Plan for the work area to be out of bounds to pets and children
  • Mention any parking rules near the property

Getting a quote

To get a quote, send an email to info@mrmastic.co.uk and tell us where the job is and what the problem looks like. We’ll give you a clear quote before any work starts.

Get a price

Advice

Different surfaces, different methods

Joints between dissimilar materials

Wherever two materials meet, they move differently. We seal the joint with a flexible exterior sealant.

Cladding and façade panels

Where a cladding system has its own specified sealant, we follow it, or one the system allows. Tell us what the building has when you get in touch.

Common questions in Carrickstone

Do you cover smaller places like Carrickstone?

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.

Do you cover Carrickstone for external mastic?

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

Should I point up the gap in my brickwork?

No. Rigid materials can’t move with the wall, so the joint stops doing its job. Where a joint has been mortared, it can often be raked out and sealed properly.

Is it worth trying it myself?

Some simple jobs can be done by a careful DIYer. Most DIY failures come from sealing over old material, wet joints or too much sealant.

How do you reach high-level joints?

It depends on the building. We work on joints that can be reached safely. Give us some details and we’ll confirm the access.

Can landlords and businesses book you?

Yes, often. Several properties can be quoted together.

Do you take out the old sealant first?

Yes, every time. New silicone does not stick to old silicone, so any old material comes out before anything new goes in.

How much does external mastic cost in Carrickstone?

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.

What we’re called out for in Carrickstone

The wrong product in a moving joint is a classic cause. A high-modulus or general-purpose sealant can be too rigid for a busy joint, and it tears off the sides.

If you can see any of these, it’s time to have the joints looked at:

  • Joints pointed up with cement by mistake
  • Hard, crazed mastic that has stopped moving
  • Sealant that has lost its bond to the brick or render
  • Movement joints with cracked, split or missing sealant

If you look after a building such as Our Lady's High, larger buildings have long runs of movement joint that eventually need resealing.

What your quote should include

  • Are they insured?
  • Which sealant they’ll use, and why
  • What happens if the job turns out different
  • Is the old sealant removed completely?

Choosing a sealant specialist

Landlord and commercial work in Carrickstone

We also work for property managers and facilities teams in Carrickstone and across North Lanarkshire. Several sites can be quoted together, and we’re fully insured.

We work for letting agents and landlords as well as homeowners. Resealing between tenancies keeps a property looking cared for.

Looking after it afterwards

Simple care keeps the joints in good condition. Our advice:

  • Fix overflowing gutters above sealed joints
  • Act on the first splits you see
  • Clear growth from the base of walls and joints
  • Show decorators and builders where the movement joints are

Give the sealant the cure time we tell you before anything rubs against it. The surface skins over quickly, but full cure takes longer.

An open movement joint lets rain into the wall every time it pours. That can lead to damp patches, staining and frost damage which cost more to put right than the joint.

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