Scotland

External Mastic in West Lothian

We cover 58 towns and villages across West Lothian for external mastic, with old sealant always removed and a one-year guarantee on every job., done properly, quoted clearly before any work starts and a one-year guarantee.

Book external mastic in West Lothian

About external mastic in West Lothian

We cut out failed sealant, set the joint depth with closed-cell backing rod and reseal with a low-modulus exterior sealant. We pick a colour that sits well with the wall. We work on joints between brick and frames, copings & trims and concrete & block, and common reasons people get in touch are failed sealant between panels on a façade and joints with sealant missing in places.

Most of a good job is in the preparation, and we don’t rush it. Every joint is cleaned and dried before new material goes in. All told, the work takes a few hours to a few days, depending on the length of joint and the access.

  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. Backing rod goes in so the sealant can stretch between the two faces.
  4. We prime the faces where required.
  5. A low-modulus exterior sealant is gunned in and tooled to a neat finish.

What affects the price in West Lothian

What it costs depends on the size of the job, how hard the old material is to remove and access to the work. You’ll have a clear quote before any work starts, so you know where you stand.

Why clients in West Lothian choose us

  • We never seal over old sealant
  • Anti-fungal sanitary silicone in wet areas
  • An ARBOMaster approved applicator
  • Rated 4.9 stars on Google

Get a quote

For external mastic in West Lothian, drop us a line at info@mrmastic.co.uk. A short description of the job and where it is helps us quote, and you will get a clear quote before we start.

What’s near Livingston

Typical jobs here are in homes near Inveralmond Community High School, St. Margaret's Academy and The NewYearField pub. For rail, the closest station is Livingston North station, roughly 1.1 miles north-west of the centre. Other landmarks nearby include Almond Valley Heritage Centre (1.3 miles south-west) and St John's Hospital (within half a mile south-west). Not far away are Dechmont Law.

Walls and rooflines across West Lothian

From Livingston, Bathgate and Linlithgow to its smaller places, buildings across West Lothian have walls, gutters and rooflines of every age. All of them move, so they need a flexible sealant at the right depth.

We work across all of Scotland, from the cities to the islands, and West Lothian is part of that. Longer journeys are planned in advance, and outdoor work around the weather. Parts of West Lothian are on or near the coast, where wind-driven rain and, closer to the shore, salt air are hard on outside sealant. Walls facing the sea are usually the first to need attention.

Livingston: Managing a site like Inveralmond Community High School? Then movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. Rented homes near Livingston North station change hands often, and failed wall and movement joints let damp in, so they’re worth checking between tenancies.

When something else is needed

We will always be straight with you, so here’s what sealant cannot fix:

  • Subsidence or other structural problems
  • Adding movement joints to masonry that has none
  • Cracked brickwork or render that needs a builder or plasterer

Keeping the joints in good condition

To keep the joints looking good and working properly:

  • Keep water from gutters off the wall
  • Keep movement joints as flexible joints, not mortar
  • Ask before painting over external sealant
  • Don’t let climbing plants root in the sealant

If you have more work done on the wall, such as new render, cladding or an opening, show the contractor the movement joints. They should be kept open and resealed, not filled.

Water getting behind cladding or render can go unnoticed for a long time. When it finally shows inside, the joint may have been open for years so early resealing is worth it.

Signs you need external mastic

Sometimes a movement joint was filled with mortar or a rigid filler, often by someone who didn’t know what it was for. The joint can’t move, so the wall cracks somewhere else instead.

Signs it’s time to call us include:

  • Failed sealant between panels on a façade
  • Brick movement joints where the sealant has split
  • Weeds or debris growing in open joints
  • Sealant pulling away from one side of the joint

DIY sealant or a professional job?

Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.

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. All the old material has to come out first.

Different surfaces, different methods

Render joints

Render is weaker at the surface than brick, so a sealant that stretches easily protects the edges. We prime where the product needs it.

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.

Your questions about external mastic in West Lothian

Is it worth trying it myself?

That depends on the joint. High-level, external movement and fire-rated joints are professional jobs, while a short indoor joint may be within reach.

Does someone need to be in?

We need access to the joints, so we’ll agree that with you when we book. Indoors, that usually means someone at home.

How long does external mastic take?

A typical job takes a few hours for a handful of joints, longer for a whole elevation. Your quote will say how long we expect yours to take.

Why do you put foam in the joint first?

The foam is closed-cell backing rod. It stops the sealant going in too deep and bonding to three sides, which would stop it stretching.

How do you reach high-level joints?

It depends on the building. Send us pictures and a rough idea of the height, and we’ll confirm what access is needed.

Will there be a smell?

That depends on the sealant. Some products have a noticeable smell, others very little.

Will it make a mess?

Tidy work is part of the job. Nearby surfaces are protected, and we clear up when we are done.

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