West Lothian · Scotland

External & façade joints in Mossend, West Lothian

External mastic for Mossend, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.

  • Gaps where render, brick and frames meet
  • Weathered mastic that no longer stretches
  • Weeds or debris growing in open joints

Trusted external mastic in Mossend

What affects the quote in Mossend

The price is agreed before any work begins. It takes into account:

  • Any working-time requirements on site
  • Access and height
  • The number and length of the joints
  • How many areas need sealing

What it costs depends on how much there is to do, how hard the old material is to remove and how easy the joints are to reach. We give a clear quote before any work starts, so you know where you stand.

Asking for a quote

Photos by email are helpful but not essential. Please mention:

  • Whether it’s a home or a business
  • What’s wrong with the joints now
  • Pictures of the joints, sent by email
  • Where the job is, and your postcode

Want a quote for external mastic? Please drop us a line at info@mrmastic.co.uk with a few details. You will know what we plan to do, and what it will cost, before any work begins.

External mastic for homes and businesses in Mossend

Joints in render and cladding are easy to overlook until a damp patch appears. We inspect them, agree which need doing and reseal with a weatherproof, flexible sealant in a matching colour. We work on copings & trims, concrete & block and joints between brick and frames, and the jobs we see most are plants rooting in failed movement joints and sealant pulling away from one side of the joint.

Stone walls need a stone-friendly sealant, as acetoxy products can attack some stone. Newer houses need their movement joints and roofline trims kept sound.

All of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.

Outdoor mastic being applied where a white frame meets red brickwork, below the fascia and gutter
Place
Mossend (EH55)
Region
West Lothian
Guarantee
12 months on all our work
Price
Quoted before any work starts
Email
info@mrmastic.co.uk
Last updated
26 October 2026

Leave it or put it right?

Sealing over the top of old mastic doesn’t hold for long. The new layer can’t bond properly to old, weathered material, so we always take the old sealant out. Out of town in Scotland, exposed walls take a lot of weather, and once water gets behind a failed joint, damp in stone or harled walls is slow to dry out.

Leaving a failed joint generally makes the job bigger, not smaller, as water and mould keep getting in. If you are not sure whether it needs doing, send an email to info@mrmastic.co.uk for an honest opinion and a quote.

Why choose Mr Mastic in Mossend

  • Quality sealants from Arbo and Everbuild
  • Anti-fungal silicone where joints get wet
  • Over 20 years’ experience
  • White, clear, grey or coloured to suit, where the product allows

See what affects the cost and customer reviews.

What we do, step by step

We keep the work tidy and contained to the area we’re working on, so you can carry on as normal. The job normally takes anything from a few hours to several days, depending on the building. Outdoor work around Mossend depends on the weather, as sealant needs a dry surface, so an outdoor job can move if the forecast changes. Indoor work goes ahead whatever the weather.

  1. We start by checking each joint, agreeing the ones to redo and how we will reach them.
  2. Old sealant and any debris are cut and raked out.
  3. Both sides are cleaned back to sound material and primed if needed.
  4. Closed-cell backing rod is fitted to set the depth and stop three-sided bonding.
  5. The new sealant, chosen to suit the brick or render, is applied and tooled to a neat finish.

Getting ready for the visit

  • Clear the area around the work
  • Tell us about access, such as stairs, a lift or high-level joints
  • Where the joints are inside, avoid wetting them before we arrive

Getting a quote

If you are in Mossend and need external mastic, 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.

Get a quick quote

Advice

Do you need external mastic in Mossend?

Every building moves. Brickwork grows a little over the years, blockwork and concrete shrink, and all of it moves with heat and moisture. All of that ends up in the joint sealant.

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

  • Sealant pulling away from one side of the joint
  • Weathered mastic that no longer stretches
  • Movement joints with cracked, split or missing sealant
  • Gaps where render, brick and frames meet

Historic houses such as Howden House, about 3.3 miles north-east, show how far back building around Mossend goes.

Questions to ask before you book

  • What preparation is included
  • What happens if they find a problem under the old sealant
  • Which sealant they’ll use, and why
  • How much experience the applicator has

10 questions to ask before booking

Outside joints around Mossend

Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and sound outside sealant is part of that. Historic houses like Howden House (about 3.3 miles north-east) are a reminder that the area around Mossend has older buildings as well as new. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material.

For landlords with property near West Calder station, split movement joints are easy to miss on a rental until damp shows inside.

Mossend is about 3 miles south-west of Livingston, in West Lothian. Whether you’re in the middle of Mossend or further out, we cover external mastic for every kind of property, from flats and houses to offices and hotels. Across West Lothian, we cover 58 places, Mossend among them. For nearby work, see our Edinburgh page.

Jobs for external mastic in EH55 is quoted and booked the same way as anywhere else. Streets in the area include Mossend Place, Mossend Gardens and Mossend Park, all of which we cover. Other places close to Mossend include West Calder (1 mile south), Polbeth (1 mile east), Seafield (2 miles north-west), Bellsquarry (2 miles north-east) and Adambrae (2 miles north-east). Within a short drive, we also cover Livingston (3 miles north-east), Bathgate (4 miles north-west), Linlithgow (8 miles north), Whitburn (4 miles west), East Calder (5 miles north-east) and Broxburn (6 miles north-east).

What’s near Mossend

Mossend has its own railway station: West Calder station. A little further out are St John's Hospital (3.1 miles north-east) and Bathgate Castle (3.4 miles north-west). Open spaces near Mossend include Dechmont Law.

Map of Mossend © OpenStreetMap contributors

What we cannot put right

Before booking, it’s worth knowing the limits:

  • Cutting new joints into brickwork, which is building work rather than sealant work
  • Cracking across the wall rather than at a joint
  • Subsidence or other structural problems

If you’re not sure, just send an email to info@mrmastic.co.uk and we’ll give you a straight answer before booking.

Surfaces we seal

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

Mossend questions

Is Mossend within the area you cover?

Yes, we do. We work across all of Scotland, and smaller places are part of that. Longer journeys are simply planned in advance.

I let a flat near West Calder station. Can you help?

Yes. We work for letting agents and landlords as well as homeowners. You can email us at info@mrmastic.co.uk with the details for a clear quote.

Can you work on commercial sites?

Yes. Commercial and hotel work is a large part of what we do, as well as homes. We can talk about working times when we quote.

Can a movement joint be filled with mortar?

No, not where the gap is a movement joint. Pointing it stops it working and can lead to cracking. We’ll reseal it with a flexible sealant.

Where is Mr Mastic based?

We work from Crawley. Our applicators cover Mossend, along with the rest of our area.

Is the work guaranteed?

Yes, for a year. If anything is not right with the work within the year, let us know and we will sort it.

What’s an expansion joint in brickwork?

It’s a deliberate gap that lets the wall expand and contract without cracking. It’s sealed with a flexible sealant, not mortar.

Will it make a mess?

Very little: the area around the joints is protected first, and we tidy up before we go.

Aftercare tips

Joint life depends on how it’s used and looked after. We suggest:

  • Fix overflowing gutters above sealed joints
  • Check the sealant is paintable before painting near it
  • Clear growth from the base of walls and joints
  • Show decorators and builders where the movement joints are

Keep pressure washers away from the sealant. High-pressure water can lift the edges over time.

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

Landlord and commercial work in Mossend

Letting agents and landlords in Mossend can book us as well as householders. Resealing between tenancies is a simple way to keep a property in good order.

We regularly work with letting and managing agents. Tell us the address, the job and how access works and we will quote.

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