Aberdeenshire · Scotland

External Mastic in Glenbervie

External mastic across Glenbervie and nearby, with every bit of old sealant taken out first.

  • Hard, crazed mastic that has stopped moving
  • Panel joints letting water in
  • Sealant that has lost its bond to the brick or render

Book external mastic in Glenbervie

Keeping the joints in good condition

How long the joints last depends on use and care. Here’s what we suggest:

  • Point out the joints to other trades
  • Check external joints each spring
  • Avoid pressure-washing directly into sealant joints
  • Check the sealant is paintable before painting near it

Do not let soil, plants or ivy build up against the new joints. Anything that holds water against the joint wears it out sooner.

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 which cost more to put right than the joint.

About our external mastic in Glenbervie

For buildings in Glenbervie, we reseal external joints of all kinds, from brick movement joints to cladding panels. The preparation is the same whatever the wall: clean joint faces and the right depth. If you have plants rooting in failed movement joints and joints where the bead has come unstuck, we can help.

In and around a place like Glenbervie, many buildings face open ground and take the full weather. Outside joints on exposed walls work hard, so they need a sealant that moves with the building.

You’re covered for a year from the day we finish. If there’s a problem with it, please email us at info@mrmastic.co.uk.

Place
Glenbervie (AB39)
Wider area
Aberdeenshire
Guarantee
One year on every job
Quote
Quoted before any work starts
Email
info@mrmastic.co.uk
Page updated
26 October 2026
The Mr Mastic team in navy uniforms in front of three Mr Mastic vans

Different surfaces, different methods

Joints between dissimilar materials

Wherever two materials meet, they move differently. A flexible sealant bridges the two.

Cladding and façade panels

Where a cladding system has its own specified sealant, we follow it, or one the system allows. Send us any details you have about the façade.

Why deal with it now?

A low-modulus sealant is chosen because it moves without pulling hard at the edges. That protects surfaces like brick, render and concrete. Too stiff a sealant can pull at the edges and break them. Out of town in Scotland, exposed walls take a lot of weather, and damp in stone or harled walls takes a long time to dry once water gets behind a joint.

We do not show prices on the website, because each job is priced on what it involves. For a quick quote, please drop us a line at info@mrmastic.co.uk and we will talk you through it.

Why choose Mr Mastic in Glenbervie

  • Old sealant always removed completely
  • Over 20 years’ experience
  • 180+ five-star Google reviews
  • Approved under the ARBOMaster scheme

See what affects the cost or customer reviews.

Your questions about external mastic in Glenbervie

Is external mastic in Glenbervie guaranteed?

Every job comes with our one-year guarantee, wherever it is. We’re also fully insured and ARBOMaster approved.

Is Glenbervie in your area for external mastic?

Yes. Our work covers the whole of Scotland, and Glenbervie is part of that. You can drop us a line at info@mrmastic.co.uk and let us know what needs doing, and we will give you a clear price.

How do you reach high-level joints?

That depends on how high the joints are and the ground below. Low-level joints are straightforward; for higher ones, send details and we’ll confirm the access.

When will the joints need doing again?

It varies from wall to wall: sunny, exposed elevations and busy joints wear faster. Check them each year and reseal when they split or harden. Every job carries our 12-month guarantee.

Can I do it myself?

Some simple jobs can be done by a careful DIYer. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.

What does external mastic cost?

There’s no set price, as it depends on the job: its size, the old material, access and the product needed. You will get a clear quote before we start.

Where do you work from?

We’re a Crawley-based firm, with over 20 years’ experience. We work across South East England, London and Scotland.

What’s an expansion joint in brickwork?

Walls move with heat, cold and moisture, and planned joints take up that movement. It’s closed with backing rod and a flexible sealant.

Glenbervie buildings and the weather

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.

If you live in an older home near West Church and War Memorial, older walls, gutters and the joints where extensions meet them need a flexible sealant.

Glenbervie is about 14 miles north of Montrose, in Aberdeenshire. Every kind of property in Glenbervie is covered for external mastic. The work is guaranteed for a year. Glenbervie is one of 161 towns and villages in Aberdeenshire where we work. Our Aberdeen page covers work nearby, about 19 miles away.

Every address in AB39 is within our area for external mastic, from the main roads to the quietest streets. Other places close to Glenbervie include Drumlithie (1 mile east), Auchenblae (3 miles south-west), Fordoun (3 miles south), Arbuthnott (4 miles south-east) and Roadside of Kinneff (5 miles south-east). Within a short drive, we also cover Montrose (14 miles south), Stonehaven (7 miles north-east), Banchory (10 miles north), Laurencekirk (7 miles south-west), Newtonhill (12 miles north-east) and Inverbervie (6 miles south-east).

What’s near Glenbervie

Other landmarks nearby include Drumtochty Castle (4.1 miles west). Open spaces near Glenbervie include Herscha Hill.

Map of Glenbervie © OpenStreetMap contributors

Do you need external mastic in Glenbervie?

A lot of failed joints come down to preparation: joint faces that were dusty or damp, unprimed where they needed it, or still carrying old sealant. The new sealant then lets go long before it should.

Signs it’s time to call us include:

  • Moss and dirt in joints with no sealant left
  • Brick movement joints where the sealant has split
  • Sealant that has lost its bond to the brick or render
  • Cracked joints where brick meets render or frames

Around Glenbervie, as everywhere, external mastic is only as good as the preparation behind it.

Comparing quotes

  • What insurance they hold
  • How hidden problems are handled
  • Whether all the old sealant comes out first
  • What the quote includes, VAT included or not

Choosing a sealant specialist

DIY sealant or a professional job?

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.

The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.

How it works

When we get to you, we check the joints match what you told us. If anything is different, we explain it before carrying on. Most jobs then take a few hours for a handful of joints, longer for a whole elevation. Outside jobs in Glenbervie need a dry day, because sealant will not bond to a wet joint, so an outdoor job can move if the forecast changes. Work indoors is not affected.

  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. We fit closed-cell backing rod to control the depth.
  5. We apply the sealant, tool it and check the whole run.

Before we arrive

  • Mention any leaks or damp you’ve noticed
  • For business premises, tell us about site rules or sign-in
  • Clear the area around the work

Ask for a quote

If you’re in Glenbervie 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 we start.

Get a quick quote

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What affects the cost of external mastic

Your quote is based on your job. We take into account:

  • When we can work, for business premises
  • The size of the job
  • How many areas need sealing
  • Which sealant suits the joint

Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether the work is at height. We take all of that into account in your quote.

What to tell us for a quote

There’s no need for technical detail. It helps if you can tell us:

  • The rough size of the job
  • Photos by email, if that is easy
  • The problem you’ve noticed
  • The address or postcode of the job

Need a quote? Please send an email to info@mrmastic.co.uk and tell us about the job. We will explain what we’d do and send you a clear quote before we start.

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