East Ayrshire · Scotland
Logan External Mastic
Our applicators work in Logan on sealing brickwork movement joints, render, cladding and façade joints. Old sealant removed completely, joints prepared properly.
- Moss and dirt in joints with no sealant left
- Damp patches traced to an open external joint
- Brick movement joints where the sealant has split
When to call us in Logan
UV, rain and frost all age exterior sealant. Over the years it hardens, cracks on the surface and loses its give, so the joint eventually tears or comes away from one side.
Most people get in touch after spotting one of these:
- Joints where the bead has come unstuck
- Leaking joints around cladding and façade panels
- Joints with sealant missing in places
- Cracked joints where brick meets render or frames
If you look after a building such as Robert Burns Academy, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Comparing quotes
- How hidden problems are handled
- Which sealant they’ll use, and why
- The length of the guarantee
- Whether they’re fully insured
How we handle external mastic in Logan
Movement joints let brickwork, render and cladding expand and shrink without cracking. The sealant in it has to stretch and squeeze for years, and when it fails, the wall takes the strain and water finds a way in. We work on brickwork movement joints, copings & trims and concrete & block, and the jobs we see most are cracked joints where brick meets render or frames and moss and dirt in joints with no sealant left.
Stone walls need a stone-friendly sealant, as acetoxy products can attack some stone. On newer homes, the movement joints and roofline trims are what need watching.
You are covered for a year from the day we finish. If there’s a problem with it, please email us at info@mrmastic.co.uk.
- Place
- Logan (KA18)
- Region
- East Ayrshire
- Guarantee
- 12 months on all our work
- Price
- A clear quote up front
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Towns and villages near Logan
What else we do in Logan
How the visit works
On the day, we look over the joints with you first. We protect the surfaces around the joints before work begins. Most jobs take anything from a few hours to several days, depending on the building. In smaller Scottish places, parking is normally less of an issue than access and distance. Let us know how to find you and how to reach the joints, and the visit is planned around that.
- 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.
Before we arrive
- Tell us if parking is tricky
- Let us know about stairs, lifts or work at height
- Plan for the work area to be out of bounds to pets and children
Ask for a quote
Every job is quoted individually, so the first step is telling us about yours. Simply drop us a line at info@mrmastic.co.uk and describe the job, and pictures are welcome.
Read more
Your questions about external mastic in Logan
Do you cover Logan for external mastic?
Yes, Logan is within the area we cover. We work across all of Scotland. Just email us at info@mrmastic.co.uk with a few details of the job, and we’ll give you a clear quote.
Will you come out to Logan?
Yes, Logan is covered. We work across all of Scotland, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Will you leave a mess?
No. The area is protected while we work and cleaned up afterwards.
Are you fully insured?
Yes. We’re fully insured.
How long does external mastic take?
A typical job takes anything from a few hours to several days, depending on the building, including preparation and clearing up. Your quote will say how long we expect yours to take.
Where is Mr Mastic based?
Mr Mastic is based in Crawley. We cover Logan and the rest of East Ayrshire.
What’s an expansion joint in brickwork?
Walls move with heat, cold and moisture, and planned joints take up that movement. The gap is sealed with a flexible sealant over backing rod.
What do you put in the joint?
Quality sealants from brands including Arbo and Everbuild, picked for each joint. We’ll tell you what we’re using and why.
Why it’s worth doing now in Logan
A failed movement joint lets water into the wall and can run behind render or cladding. Dealing with it early keeps the repair to the joint, rather than the wall around it. Exposed walls in smaller Scottish places take a lot of wind and rain, and damp in stone or harled walls takes a long time to dry once water gets behind a joint.
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.
What you get with us
- Anti-fungal sanitary silicone in wet areas
- One-year guarantee on every job
- Trusted Arbo and Everbuild sealants
- 20+ years of sealant experience
Read how sealant jobs are priced or our reviews.
Quotes for external mastic in Logan
There’s no set price list, because jobs vary so much. What we look at:
- Working hours on commercial sites
- The product the joint needs
- Access and height
- How many rooms, windows or areas are involved
What you pay reflects the work, not guesswork. That is why we ask about the job first.
What we need to know
You don’t need to know the technical terms. Just tell us:
- Roughly how big the job is
- Pictures of the joints, sent by email
- If it’s domestic, commercial or a hotel
- Any previous sealing or DIY work
Need a quote? Please send an email to info@mrmastic.co.uk and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.
Work for landlords, hotels and businesses
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance that we can handle for you.
Mouldy or split sealant often shows up at the end of a tenancy. Several properties can be quoted together.
Aftercare tips
So the new joints stay in good condition:
- Check external joints each spring
- Keep soil, plants and ivy away from the joints
- Keep movement joints as flexible joints, not mortar
- Ask before painting over external sealant
Have a quick look at the joints each spring. Splits, gaps at the edges or plants in the joint are early warning signs.
Leave a failed movement joint and water keeps getting into the wall. That can lead to damp patches, staining and frost damage which cost more to put right than the joint.
What external mastic looks like in Logan
Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and sound outside sealant is part of that. Plenty of Scottish homes have harled walls, and joints where harling meets other materials need a sealant that can grip and flex.
In the older streets around Lugar Parish Church, older walls, gutters and the joints where extensions meet them need a flexible sealant. If you let a flat or house near Auchinleck station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Logan is about 15 miles south-east of Kilmarnock, in East Ayrshire. Whether you’re in the middle of Logan or further out, external mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Logan is one of 53 places in East Ayrshire we cover for external mastic. You can also see our page for Glasgow, about 27 miles away.
Postcode districts we cover here for external mastic: KA18. Whether your property is on Logan Avenue, Glen Avenue and Logangate Terrace or a nearby road, we can help. If you are just outside Logan, we cover Lugar (1 mile north), Craigens (1 mile south), Cumnock (1 mile west), Netherthird (1 mile south-west) and Cronberry (2 miles north-east). Within a short drive, we also cover Kilmarnock (15 miles north-west), Annanhill (15 miles north-west), Galston (11 miles north-west), Mauchline (7 miles north-west), New Farm Loch (14 miles north-west) and Bonnyton (15 miles north-west).
Local landmarks in Logan
Logan’s nearest station is Auchinleck station, about 2.6 miles west of the centre. Well-known places in the area include Borland Castle (1.9 miles south) and East Ayrshire Community Hospital (1.7 miles west). For a walk, there’s Airds Moss RSPB Reserve and Black Loch.
Should I try it myself first?
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.