Argyll and Bute · Scotland

External Mastic in Tom nan Ragh

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

  • Movement joints filled with mortar instead of sealant
  • Leaking joints around cladding and façade panels
  • Failed seals between different materials

External mastic in Tom nan Ragh

External mastic in Tom nan Ragh, done properly

For buildings in Tom nan Ragh, we reseal external joints of all kinds, from brick movement joints to cladding panels. Every joint gets the same careful preparation: clean, sound faces and a controlled depth. Typical jobs include plants rooting in failed movement joints and sealant pulling away from one side of the joint, across render & cladding joints, concrete & block and façade panels.

In and around a place like Tom nan Ragh, 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.

We guarantee the work for a year. If something isn’t right with it in that time, tell us and we’ll put it right.

Where
Tom nan Ragh (PA23)
Wider area
Argyll and Bute
Guarantee
A year, on every job
Quote
Quoted before any work starts
Email
info@mrmastic.co.uk
Updated
26 October 2026
The Mr Mastic team in navy uniforms in front of three Mr Mastic vans

Outside joints around Tom nan Ragh

Tom nan Ragh is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That is hard on movement joints and outside wall joints, especially on the side facing the sea. Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and sound outside sealant is part of that.

In the older streets around St Munn's Parish Church, old and new materials meet at the roofline and walls, which is where sealant earns its keep.

Tom nan Ragh is about 8 miles north-west of Greenock, in Argyll and Bute. For external mastic in and around Tom nan Ragh, it’s easy to get a quote: please send an email to info@mrmastic.co.uk. We’re based in Crawley and cover Argyll and Bute. We cover 118 towns and villages across Argyll and Bute. Our Glasgow page covers work nearby.

Every address in PA23 is within our area for external mastic, from the main roads to the quietest streets. We also cover the places around Tom nan Ragh: Kilmun (1 mile east), Sandbank (2 miles south-east), Strone (3 miles east), Dunoon (3 miles south-east) and Kirn (3 miles south-east). Larger places within reach include Helensburgh (10 miles east), Rothesay (11 miles south), Rhu (8 miles east), Garelochhead (8 miles north-east), Port Bannatyne (10 miles south-west) and Innellan (7 miles south). If you are somewhere remote, the job takes a little more planning.

Landmarks near Tom nan Ragh

Well-known places in the area include Castle House Museum (3.7 miles south-east) and Cowal Community Hospital (2.8 miles south-east). Green spaces nearby include Clach Bheinn and Loch Loskin.

Map of Tom nan Ragh © OpenStreetMap contributors

When to call us in Tom nan Ragh

Sometimes a movement joint was filled with mortar or a rigid filler. With the joint locked solid, the movement turns into cracks elsewhere in the wall.

Look out for any of the following:

  • Failed seals between different materials
  • Weeds or debris growing in open joints
  • Movement joints with cracked, split or missing sealant
  • Panel joints letting water in

Around Tom nan Ragh, as everywhere, external mastic is only as good as the preparation behind it.

What to look for in a quote

  • What the cure time is
  • Is the old sealant removed completely?
  • Are they insured?
  • How much experience the applicator has

Our hiring checklist

What affects the quote in Tom nan Ragh

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

  • Whether there’s mould to deal with
  • Access and height
  • The size of the job
  • Working hours on commercial sites

No two jobs are quite the same, so we quote each one individually. Size, access and the product the joint needs all make a difference.

Helping us quote

To make quoting easier, let us know:

  • What the problem is, such as mould, gaps, leaks or cracking
  • The rough size of the job
  • Any access issues, like height or stairs
  • Where the job is, and your postcode

Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we’ll talk you through what we’d do. When it suits you, send an email to info@mrmastic.co.uk.

Common questions in Tom nan Ragh

Does living near the coast affect external mastic in Tom nan Ragh?

Coastal homes put outside sealant through more weather than inland ones, so preparation and the right sealant matter all the more. It’s worth checking the walls that face the sea first.

Is Tom nan Ragh within the area you cover?

Yes. Tom nan Ragh is within the area we cover, which takes in towns, villages and rural addresses. We work across all of Scotland. Let us know about access, parking and anything unusual about getting there when you book.

Are you ARBOMaster approved?

Yes. We are ARBOMaster approved, the scheme for applicators of Arbo sealants.

Is it worth trying 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.

Do I have to be there?

That depends on where the joints are. For work indoors, someone needs to let us in, while outside work can sometimes be arranged differently.

Do you take out the old sealant first?

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

Do you have insurance?

Yes. Full insurance covers our work, and we can confirm the details when we quote.

Will the new joint stand out?

The aim is a neat, even joint in a colour that suits the wall. We’ll talk through colour options before work begins, matched as closely as the range allows.

How the visit works

A visit follows a simple pattern: we look at the joints together, mask and protect the surrounding surfaces, do the work and tidy away. It normally takes a few hours for a handful of joints, longer for a whole elevation. In smaller Scottish places, parking is generally less of an issue than access and distance. Let us know how to find you and how to reach the joints, and the visit is planned around that.

  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

  • Tell us about any water getting in
  • Keep children and pets away from the work area
  • Tell us about access, such as stairs, a lift or high-level joints

How to get a quote

We quote each job on its own, so start by telling us what you need. Just email us at info@mrmastic.co.uk with the details, and pictures are welcome.

Get a price

Related advice

Keeping the joints in good condition

Good habits help new joints last longer. A few tips:

  • Leave the joints unpainted unless we have said otherwise
  • Point out the joints to other trades
  • Make sure movement joints are not pointed over
  • Avoid pressure-washing directly into sealant joints

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

Act while the splits are small. Then it’s a straightforward cut-out and reseal.

Should I try it myself first?

If you’re set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it does not work out, we can still put it right.

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

Different surfaces, different methods

Copings and trims

Copings expand and contract through the day, so the joints need a sealant that stays flexible.

Joints between dissimilar materials

Joints where frames, sills or panels meet the wall are common leak points. We cut out the old sealant and reseal with a product suited to both surfaces.

Why deal with it now?

A properly done movement joint is an even line in a colour that suits the wall. A rushed bead with no backing looks untidy and doesn’t last so it’s worth doing right. Exposed walls in smaller Scottish places take a lot of wind and rain, and once water gets behind a failed joint, damp in stone or harled walls is slow to dry out.

The cost depends on the size of the job, how hard the old material is to remove and access to the work. We give a clear quote before we start.

Why Tom nan Ragh customers choose us

  • 12-month guarantee on every job
  • We’re fully insured
  • 20+ years of sealant experience
  • Homes, businesses and hotels

See our cost guide or our reviews.

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