East Lothian · Scotland
External Mastic in Athelstaneford
Professional external mastic in and around Athelstaneford, with every bit of old sealant taken out first.
- Water getting into walls through failed joints
- Failed sealant between panels on a façade
- Joints pointed up with cement by mistake
About our external mastic in Athelstaneford
Low-level joints can generally be done from the ground. For joints higher up, give us some details of the building and we will confirm what access is needed. We work on façade panels, concrete & block and render & cladding joints, and people most often call us about moss and dirt in joints with no sealant left and sealant pulling away from one side of the joint.
Older stone buildings need a sealant that suits the stone, not an acetoxy product that can mark or attack it. Newer houses need their movement joints and roofline trims kept sound.
We stand behind the work with a 12-month guarantee.
- Where
- Athelstaneford (EH39)
- Wider area
- East Lothian
- Guarantee
- A year, on every job
- Quotes
- Quoted before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
What external mastic looks like in Athelstaneford
Harled (roughcast) walls are common in Scotland, and joints where harling meets other materials need a sealant that can grip and flex. Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and failed outside joints work against that.
Letting a property close to Drem station? Then split movement joints are easy to miss on a rental until damp shows inside.
Athelstaneford is about 3 miles north-east of Haddington, in East Lothian. Across the EH39 area, we can carry out external mastic at your property. Athelstaneford is one of 48 places in East Lothian we cover. Edinburgh is on our list too, about 18 miles from Athelstaneford.
Postcode districts we cover here for external mastic: EH39. You’ll find streets such as The Maltings and Glebe Crescent. We also cover Drem (2 miles north-west), Haddington (3 miles south-west), Kingston (3 miles north), East Linton (3 miles east) and Dovecote (3 miles south-west). Within a short drive, we also cover Musselburgh (12 miles west), Dunbar (9 miles east), Tranent (9 miles west), North Berwick (5 miles north), Prestonpans (9 miles west) and Cockenzie and Port Seton (8 miles west).
Local landmarks in Athelstaneford
Athelstaneford’s nearest station is Drem station, roughly 1.9 miles north-west. Nearby you will also find Roodlands General Hospital (3 miles south-west) and Barnes Castle (0.8 miles south-west). The countryside around Athelstaneford includes Marl Loch and Skid Hill.
What sealant work cannot fix
Sealant isn’t the answer to every problem, and we’ll tell you before any work starts. Sealant will not put right:
- Failed render or damaged cladding panels
- Walls that need new movement joints cut into them
- Rising or penetrating damp from elsewhere in the wall
Not sure which it is? You can drop us a line at info@mrmastic.co.uk and we’ll tell you honestly before you book.
Joints and surfaces we work on
- Brickwork movement joints
- Render & cladding joints
- Joints between brick and frames
- Concrete & block
- Copings & trims
- Façade panels
Athelstaneford questions
Will you come out to Athelstaneford?
Yes, Athelstaneford is covered. Our work covers the whole of Scotland, and smaller places are part of that. Longer journeys are simply planned in advance.
Is Athelstaneford in your area for external mastic?
Yes. Our work covers the whole of Scotland, and Athelstaneford is part of that. You can drop us a line at info@mrmastic.co.uk and let us know what needs doing, and we’ll give you a clear quote.
Does someone need to be in?
That depends on where the joints are. For work indoors, someone needs to let us in, and for outside work we will agree access with you when we book.
I’m a tenant. Can you help?
We can work for tenants, landlords or agents. Just make sure your landlord agrees.
Do you work for letting agents?
Yes, regularly. We can quote for several properties at once.
Is it OK to seal over old sealant?
No. New silicone won’t bond to old silicone, and anything trapped underneath, including mould and water, stays there. We remove it all first.
Will there be a smell?
That depends on the sealant. Some products have a noticeable smell, others very little.
What sealant do you use?
The product depends on the job: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.
When to call us in Athelstaneford
UV, rain and frost all age exterior sealant. Over the years it hardens, cracks on the surface and loses its give, so the next time the wall moves, it splits or pulls away.
Common reasons people contact us include:
- Rain getting behind render or cladding at a joint
- Sealant pulling away from one side of the joint
- Movement joints with cracked, split or missing sealant
- Cracked joints where brick meets render or frames
For an older house near a landmark such as Parish Church, old and new materials meet at the roofline and walls, which is where sealant earns its keep.
What to look for in a quote
- What happens if the job turns out different
- Whether all the old sealant comes out first
- What product goes in the joint
- When the joint can take water or movement
Looking after it afterwards
A little care helps the new joints last. We recommend:
- Don’t let climbing plants root in the sealant
- Look over the joints every year, ideally after winter
- Make sure movement joints aren’t pointed over
- Show decorators and builders where the movement joints are
Keep pressure washers away from the sealant. A strong jet can damage the edges of the bead and let water in behind.
Small splits are the time to act. At that stage it’s a simple cut out and reseal with no damage behind it to deal with.
What we do, step by step
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. In total, it normally takes anything from a few hours to several days, depending on the building. Outside jobs in Athelstaneford need a dry day, because sealant won’t bond to a wet joint, so an outdoor job can move if the forecast changes. Indoor work goes ahead whatever the weather.
- Each joint is checked and the colour of the new sealant agreed.
- Failed sealant is removed back to clean, sound faces.
- 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.
Getting ready for the visit
- Let us know about parking restrictions
- Let us know about stairs, lifts or work at height
- Let us know about earlier repairs to the joints
How to get a quote
There’s no standard price list. Instead, your job gets its own clear quote. To arrange one, email us at info@mrmastic.co.uk.
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Places near Athelstaneford
Other services in Athelstaneford
For landlords and businesses
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. Several properties can go on one quote.
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
What the job involves on each surface
Joints between dissimilar materials
Joints where frames, sills or panels meet the wall are common leak points. The old joint is removed and a sealant that bonds to both sides goes in.
Cladding and façade panels
Where a cladding system has its own specified sealant, we follow it, or one the system allows. Tell us what the building has when you get in touch.
DIY versus a professional finish
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
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.