South Lanarkshire · Scotland

External & façade joints in Hamilton, South Lanarkshire

Sealing brickwork movement joints, render, cladding and façade joints for householders, landlords and businesses in Hamilton. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.

  • Plants rooting in failed movement joints
  • Panel joints letting water in
  • Movement joints with cracked, split or missing sealant

Book external mastic in Hamilton

When to call us in Hamilton

Many joints fail because they were sealed too deep or with nothing behind them. Sealant bonded to three sides has nowhere to go and tears as soon as the joint widens.

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

  • Movement joints with cracked, split or missing sealant
  • Leaking joints around cladding and façade panels
  • Plants rooting in failed movement joints
  • Rain getting behind render or cladding at a joint

For an older house near a landmark such as Auchingramont Church, old and new materials meet at the roofline and walls, which is where sealant earns its keep.

What your quote should include

  • How long to leave it before use
  • What preparation is included
  • What product goes in the joint
  • How long the guarantee is

How to choose a mastic man

External mastic for homes and businesses in Hamilton

As ARBOMaster approved applicators, we choose exterior sealants to suit the joint and the surfaces. Porous or awkward surfaces are primed where the sealant needs it. If you have moss and dirt in joints with no sealant left and rain getting behind render or cladding at a joint, we can put it right.

Scottish towns like Hamilton mix older stone buildings with newer estates of brick, render and uPVC trims. Each has its own weak points: worn joints in old gutters, and dried-out movement joints in newer walls.

All our work comes with a 12-month guarantee.

Mr Mastic applicator sealing the top of a white uPVC door frame on a red-brick house
Where
Hamilton (ML3, G72)
Region
South Lanarkshire
Cover
A year, on every job
Quotes
A clear quote up front
Email
info@mrmastic.co.uk
Updated
26 October 2026

What we cannot put right

It helps to know what we can’t do too:

  • Walls that need new movement joints cut into them
  • Cracks in the bricks or render themselves, away from the joints
  • Render that’s blown, hollow or coming away

If in doubt, drop us a line at info@mrmastic.co.uk and we will say what we think before you book.

Surfaces we seal

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

Different surfaces, different methods

Concrete and blockwork

The face of concrete or block is often dusty, so cleaning and priming matter. A primer goes on where the product requires one before the bead.

Render joints

Rendered walls have joints at beads, openings and changes of material. We reseal them with a flexible exterior sealant that suits the render colour.

Hamilton 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. With historic houses such as Cambusnethan House (about 4.7 miles east) nearby, there’s older building stock in the area around Hamilton as well as newer homes. Where a home is older, older walls and rooflines need a sealant that moves with them and suits the material.

Managing a site like Earnock High School? Then movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. For landlords with property near Hamilton West station, split movement joints are easy to miss on a rental until damp shows inside.

Hamilton is about 10 miles south-east of Glasgow, in South Lanarkshire. We provide external mastic to homes and businesses in Hamilton and nearby. Hamilton is one of 139 towns and villages in South Lanarkshire we cover for external mastic. You can also see our page for Glasgow, roughly 10 miles from Hamilton.

Jobs for external mastic in ML3 and G72 is quoted and booked the same way as anywhere else. Local streets include Dykehead Square, Cadzow Bridge Square and Portland Square, and we cover them all. You will find Hamilton on the A72 and A723, so it’s easy for us to get to. If you’re just outside Hamilton, we cover Neilsland (1 mile south), Laighstonehall (1 mile south-west), Woodhead (1 mile south), Burnbank (1 mile north-west) and Hillhouse (1 mile west). Larger places within reach include East Kilbride (5 miles west), Cambuslang (5 miles north-west), Uddingston (4 miles north), Larkhall (4 miles south-east), Carluke (9 miles east) and Rutherglen (7 miles north-west). Being one of South Lanarkshire’s larger places, Hamilton has homes, rented property and businesses of every kind.

Around Hamilton

In Hamilton, that means homes and buildings near Iona Ridge Park. Hamilton’s nearest station is Hamilton West station, about 0.7 miles north of the centre. Nearby you’ll also find Cadzow Castle (1.8 miles east) and Udston Hospital (0.9 miles north-west). The countryside around Hamilton includes Strathclyde Loch and Baron's Haugh RSPB Reserve.

Map of Hamilton © OpenStreetMap contributors

Leave it or put it right?

Running new sealant over the old bead rarely lasts. The new layer cannot bond properly to old, weathered material, so we always take the old sealant out. For landlords in Hamilton, damp and leaks can fall under the Repairing Standard. Sorting failed joints early is easier than dealing with a tenant’s complaint.

Some things make a job bigger or smaller: the old material and how easily it comes out, whether mould needs treating, and whether we need extra access for height. Your quote takes all of that into account.

Why book with us

  • Trusted Arbo and Everbuild sealants
  • We agree the colour with you first
  • Fully insured
  • Sanitary silicone with an anti-fungal additive in wet areas

Read what affects the cost and our reviews.

Your questions about external mastic in Hamilton

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

Yes, rental work is part of what we do. Just send an email to info@mrmastic.co.uk and tell us about the property, and we will give you a clear quote.

Is there a guarantee on external mastic in Hamilton?

Every job comes with our 12-month guarantee, wherever it is. We are also fully insured and ARBOMaster approved.

What is backing rod for?

Backing rod controls the sealant depth and keeps it off the back of the joint. That way it bonds to the two sides only and can stretch.

Can you do several jobs on one visit?

Yes, we can. More than one area can go on one quote.

Can new sealant go over the old?

No. New silicone won’t bond to old silicone, and anything trapped underneath, including mould and water, stays there. It all has to come out first.

Do you work in Hamilton?

Yes. From our base in Crawley, we cover South East England, London and all of Scotland, and that includes Hamilton.

Is it worth trying it myself?

It depends on the job. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional.

Will you leave a mess?

No. We protect the surfaces around the joints, and we tidy up before we go.

Landlord and commercial work in Hamilton

Landlords and agents in Hamilton can book us as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order.

If you manage several properties in or around Hamilton, jobs at different addresses can go on one quote. Send us the addresses and the work at each.

Aftercare tips

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

  • Do not let climbing plants root in the sealant
  • Check the sealant is paintable before painting near it
  • Deal with leaking gutters that soak the joints below
  • Avoid pressure-washing directly into sealant joints

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

If you can see gaps, plants or bare sections in a joint, have it checked. Earlier resealing means a smaller job and a better result.

How the visit works

There’s no need to move everything out before we come, just the space around the work. Everything nearby is protected, and the work takes a few hours for a handful of joints, longer for a whole elevation in most cases. In a Scottish town like Hamilton, parking is generally straightforward, though older centres can be tighter. For flats, mention the shared stair or door entry system.

  1. First we look over the joints with you, agree which to renew and talk through access.
  2. Old sealant and any debris are cut and raked out.
  3. The joint faces are cleaned and primed where the sealant needs it.
  4. Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
  5. A flexible exterior sealant is applied and tooled in a colour to suit the wall.

How to prepare

  • Let us know if you’ve seen damp or leaks
  • Let us know about earlier repairs to the joints
  • Keep children and pets away from the work area

Ask for a quote

Want a quote for external mastic? Please drop us a line at info@mrmastic.co.uk and tell us about the job. We’ll explain what we’d do and give you a clear quote before any work starts.

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