South Lanarkshire · Scotland
External & façade joints in East Kilbride, South Lanarkshire
External mastic for East Kilbride and the surrounding area: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Panel joints letting water in
- Cracked joints where brick meets render or frames
- Hard, crazed mastic that has stopped moving
DIY versus a professional finish
If you are set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it doesn’t work out, we can still put it right.
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.
External mastic for homes and businesses in East Kilbride
As ARBOMaster approved applicators, we choose exterior sealants to suit the joint and the surfaces. Some surfaces need a primer before sealing, and we do not skip that step. If you have plants rooting in failed movement joints and joints with sealant missing in places, we can put it right, on render & cladding joints, concrete & block and copings & trims alike.
In a town like East Kilbride, older stone-built streets sit alongside newer estates with brick, render and uPVC rooflines. Each has its own weak points: worn joints in old gutters, and dried-out movement joints in newer walls.
A one-year guarantee comes as standard, so you are not left on your own once the job is done.
- Place
- East Kilbride (G74, G76)
- Region
- South Lanarkshire
- Guarantee
- A year, on every job
- Price
- A clear quote up front
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
East Kilbride buildings and the weather
East Kilbride is in the west of Scotland, which is wetter than the east, so there’s plenty of rain for movement joints and outside wall joints to keep out. Harled (roughcast) walls are common in Scotland, and joints where harling meets other materials need a sealant that can grip and flex.
For landlords with property near East Kilbride station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.
East Kilbride is about 7 miles south-east of Glasgow, in South Lanarkshire. We provide external mastic to homeowners, landlords and businesses in East Kilbride and nearby, as part of our work across South Lanarkshire. East Kilbride is one of 139 places in South Lanarkshire where we work. There’s also a page for Glasgow, roughly 7 miles from East Kilbride.
Work in G74 and G76 is quoted and booked the same way as anywhere else. Local streets include Symington Square, Main Street and Dunglass Square, all of which we cover. You will find East Kilbride on the A725 and A726, so it’s easy for us to get to. Nearby, we also carry out external mastic in The Murray (1 mile east), West Mains (1 mile north-east), Greenhills (1 mile south), The Village (1 mile north-east) and East Mains (1 mile north-east). Larger places within reach include Hamilton (5 miles east), Cambuslang (5 miles north-east), Uddingston (7 miles north-east), Blantyre (4 miles north-east), Larkhall (9 miles east) and Carluke (14 miles east). East Kilbride is one of the larger places we cover in South Lanarkshire.
What’s near East Kilbride
Typical jobs here are in homes near The Hay Stook pub, among other places. The nearest railway station is East Kilbride station, about 0.7 miles north-east of the centre. Nearby you will also find East Kilbride Shopping Centre (0.6 miles east) and Mains Castle (1.4 miles north). Green spaces nearby include Cathkin Braes.
What happens if it’s left?
Pointing a movement joint with mortar might seem a neat fix, but it locks the joint solid. The movement then cracks the brickwork or render nearby. The correct repair is a flexible sealant with the right backing. Scottish weather finds any gap, and in a town like East Kilbride, failed outside joints soon let damp into walls. Inside, a failed seal around a bath or shower lets water into floors and ceilings.
Doing several joints on one visit is usually more efficient than separate visits, so tell us about everything that needs sealing. We’ll send you a clear quote for the lot.
Why East Kilbride clients choose us
- More than 20 years in sealant work
- Arbo and Everbuild products
- You choose the colour before work begins
- Anti-fungal sanitary silicone in wet areas
Landlords, agents and businesses in East Kilbride
Housing providers, facilities teams and property managers book us too. Several sites can be quoted together.
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
East Kilbride: your questions answered
Is there a guarantee on external mastic in East Kilbride?
Every job comes with our 12-month guarantee, wherever it is. We’re also fully insured and ARBOMaster approved.
Is East Kilbride in your area for external mastic?
Yes. Our work covers the whole of Scotland, and East Kilbride is part of that. You can drop us a line at info@mrmastic.co.uk and tell us what needs doing, and we’ll give you a clear price.
How long before the joint can be used?
Different products cure at different speeds, so follow the cure time we give you when we finish.
Can landlords and businesses book you?
Yes. We work for householders, landlords, letting agents, businesses and hotels across South Lanarkshire.
Is it messy?
Very little: the area around the joints is protected first, and we tidy up before we go.
Are you an approved applicator?
Yes. We’re an ARBOMaster approved applicator, the approved applicator scheme for Arbo sealants.
Can you work on commercial sites?
Yes. We work in offices, washrooms, hotels and other commercial premises, as well as homes. We can talk about working times when we quote.
Is it worth trying it myself?
You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. If it does not work out, we can redo it.
Quotes for external mastic in East Kilbride
For a quick quote, just ask. What matters most is:
- How much old sealant there is and how hard it is to remove
- Any mould that needs treating
- The size of the job
- Whether the work is at height
Homes and businesses are quoted the same way: the amount of work, how we reach it and what it needs. Ask us for a quote and we will explain what it covers.
What we need to know
Photos by email are helpful but not essential. Please mention:
- Any previous sealing or DIY work
- Roughly how big the job is
- What’s wrong with the joints now
- Whether it’s a home or a business
For external mastic in East Kilbride, email us at info@mrmastic.co.uk. A short description of the job and where it is helps us quote, and we will agree the price before any work begins.
Places near East Kilbride
Other services in East Kilbride
Honest limits
We will not take on work that will not last, so here’s what sealant cannot put right:
- Adding movement joints to masonry that has none
- Failed render or damaged cladding panels
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
If you are not sure, just email us at info@mrmastic.co.uk and we will give you a straight answer before booking.
Joints and surfaces we work on
- Brickwork movement joints
- Copings & trims
- Façade panels
- Joints between brick and frames
- Concrete & block
- Render & cladding joints
What we’re called out for in East Kilbride
Weeds, moss and debris in a joint are a sign the sealant has gone. Roots and dirt hold water against the wall and speed up the damage.
Most people get in touch when they notice something like this:
- Weeds or debris growing in open joints
- Damp patches traced to an open external joint
- Brick movement joints where the sealant has split
- Movement joints filled with mortar instead of sealant
Managing a site like Duncanrig Secondary School? Then movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Before booking anyone
- Who does the work, and how experienced they are
- What the cure time is
- Which colour the sealant will be
- What happens if they find a problem under the old sealant
The process
Before we leave, we go over the finished joints with you. The visit itself usually takes anything from a few hours to several days, depending on the building, depending on the size of the job. Parking around East Kilbride is rarely difficult, though older streets in the centre can be tight. For flats, mention the shared stair or door entry system.
- We look at every joint and agree a colour to suit the wall.
- We take out the old sealant until the faces are sound.
- Backing rod goes in so the sealant can stretch between the two faces.
- We prime the faces where required.
- We gun in low-modulus sealant and tool it neatly.
How to prepare
- For business premises, tell us about site rules or sign-in
- Let us know about earlier repairs to the joints
- Keep pets and children clear of the area while we work
Getting a quote
For a quote, send an email to info@mrmastic.co.uk with the location and a short description of the problem. You’ll have a clear quote before we start.