Scotland

External Mastic in Glasgow

From the largest town to the smallest village in Glasgow, our applicators can help with external mastic. Clear quotes up front, and a one-year guarantee.

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External mastic across Glasgow

Sealing brickwork movement joints, render, cladding and façade joints. Pick your town below to see the details for your area, or call or email us for a quick quote.

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Our external mastic service in Glasgow

A movement joint is only as good as its depth. Closed-cell backing rod sets the depth and stops the sealant sticking to the back, so it bonds to the two sides only and can stretch. We work on render & cladding joints, joints between brick and frames and façade panels, and people most often call us about movement joints filled with mortar instead of sealant and old sealant gone brittle and cracked.

When we arrive, we look over the joints with you first. We protect the surfaces around the joints before any work begins. Most jobs take a few hours for a handful of joints, longer for a whole elevation.

First we look over the joints with you, agree which to renew and talk through access.
We cut out the failed sealant and rake out any dirt or growth.
The joint faces are cleaned and primed where the sealant needs it.
Closed-cell backing rod is fitted to set the depth and stop three-sided bonding.
A flexible exterior sealant is applied and tooled in a colour to suit the wall.

What affects the price in Glasgow

Doing several joints on one visit is usually more efficient than separate visits, so tell us about everything that needs sealing. We’ll give you a clear price for the lot.

Why customers in Glasgow choose us

White, clear, grey or coloured to suit, where the product allows
Quality sealants from Arbo and Everbuild
Anti-fungal sanitary silicone in wet areas
One-year guarantee on every job

Get a quote

We quote each job on its own, so the first step is telling us about yours. Just send an email to info@mrmastic.co.uk with the details.

Landmarks near Glasgow

Around Glasgow, our work takes us to homes and buildings near Stirling's Library, St Vincent Street Church and Craigholme School and the streets around them. Nearby too are Old Toll Bar (within half a mile south-west), Glasgow (within half a mile south-west), Glasgow Academy (0.7 miles north) and Kelvingrove Park (1.1 miles north-west). Glasgow has its own railway station: Anderston station. A little further out are NHS Louisa Jordan (0.7 miles north-west) and Princes Square (0.8 miles east). For a walk, there’s Hogganfield Loch and Cathkin Braes.

Schools near Glasgow include Our Lady and St Margaret's Primary School (less than half a mile south-west)

Walls and rooflines across Glasgow

In Glasgow, external mastic work takes in houses, flats and commercial buildings, from Hillhead, Dowanhill and Woodlands to the quieter places in between. Every outside joint is sealed dry and clean, so the forecast decides the day.

Our work covers the whole of Scotland, Glasgow included. Journeys are planned ahead, and outside jobs are booked around the forecast.

Glasgow: For landlords with property near Anderston station, split movement joints are easy to miss on a rental until damp shows inside. Tenement House, about 1 mile north, is one of the historic houses in the wider area around Glasgow, and older homes nearby need a sealant that suits their walls.

Why deal with it now?

Pointing a movement joint with mortar might seem a neat fix, but it stops the joint moving. The movement then cracks the brickwork or render nearby. The correct repair is a flexible sealant with the right backing.

Comparing quotes

Whether VAT is included
What happens if they find a problem under the old sealant
Whether the sealant suits the joint
How the joint is cleaned and prepared

How to look after the new joints

Good habits help new joints last longer. Our tips:

Keep water from gutters off the wall
Avoid pressure-washing directly into sealant joints
Make sure movement joints aren’t pointed over
Act on the first splits you see

Look over the joints once a year, ideally after winter. Splits, gaps at the edges or plants in the joint are early warning signs.

Act while the splits are small. At that stage it’s a simple cut out and reseal with no damage behind it to deal with.

When something else is needed

We’d rather tell you now than do work that won’t last, so here’s what sealant can’t put right:

Subsidence or other structural problems
Rising or penetrating damp from elsewhere in the wall
Adding movement joints to masonry that has none

How the job changes by surface

Copings and trims

Copings expand and contract through the day, so a flexible sealant suits them best.

Concrete and blockwork

Concrete and block walls shrink as they dry and move with temperature. We reseal their joints with backing rod and a flexible product.

Quotes for external mastic in Glasgow

We do not publish a price list, because no two jobs are the same. What we look at:

The size of the job
The number of rooms or windows
When we can work, for business premises
The type of sealant required

A few things move the cost up or down: the old material and how easily it comes out, any mould to treat, and whether we need extra access for height. We take all of that into account in your quote.

What to tell us for a quote

When you call or email, these details help:

Roughly how big the job is
If someone has resealed it before
What the problem is, such as mould, gaps, leaks or cracking
The type of property

For a quick quote, get us on the phone, or email us if that is easier. Tell us about the joints that need doing and we will talk you through the work before giving you a price.

Your questions about external mastic in Glasgow

Can you seal over the old sealant?

No. Fresh sealant does not stick to old sealant, and anything trapped underneath, including mould and water, stays there. It all has to come out first.

What information do you need?

Just the basics: the address or postcode, what’s wrong and any access issues. Then email us at info@mrmastic.co.uk.

What sealant do you use?

We choose the sealant for the joint, not the other way round. Where it moves, gets wet or faces the weather makes a difference.

Will the new joint stand out?

We aim for a joint that suits the wall rather than one that jumps out. Colour is agreed with you before we begin.

How long does external mastic last?

There’s no fixed answer: sunny, exposed elevations and busy joints wear faster. Check them each year and reseal when they split or harden. Our work comes with a 12-month guarantee.

Do you have insurance?

Yes. Mr Mastic is fully insured, with over 20 years’ experience in sealant work.

Is it worth trying it myself?

You can, for simple jobs. Preparation is everything: all the old sealant out, and a clean, dry joint. We can always put it right if it fails.