East Lothian · Scotland
Bielside External Mastic
External mastic for Bielside and the surrounding area: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- Movement joints with cracked, split or missing sealant
- Plants rooting in failed movement joints
- Rigid filler in a joint that should flex
Common problems we fix in Bielside
If plants are growing out of a joint, the sealant has normally failed or was never there. Dirt and roots then trap moisture in the joint and make things worse.
Keep an eye out for these signs:
- Rain getting behind render or cladding at a joint
- Moss and dirt in joints with no sealant left
- Hard, crazed mastic that has stopped moving
- Gaps where render, brick and frames meet
For landlords with property near Dunbar station, outside joints that have cracked can let damp into a rental, so check them between lets.
What to look for in a quote
- How long to leave it before use
- What insurance they hold
- Whether all the old sealant comes out first
- Who does the work, and how experienced they are
About our external mastic in Bielside
Many failed façade joints only get noticed once there’s a stain or a damp patch inside. We look over the joints, agree the ones to renew and reseal with a flexible, weatherproof product in a colour to suit. We work on concrete & block, copings & trims and render & cladding joints, and common reasons people get in touch are joints pointed up with cement by mistake and plants rooting in failed movement joints.
Older stone buildings need a sealant that suits the stone, not an acetoxy product that can mark or attack it. On newer homes, the movement joints and roofline trims are what need watching.
We guarantee the work for a year. If something isn’t right with it in that time, tell us and we’ll put it right.
- Place
- Bielside (EH42)
- Wider area
- East Lothian
- Guarantee
- 12 months on all our work
- Quote
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
External mastic in Bielside: local notes
Bielside is within about 1 mile of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on movement joints and outside wall joints, which can dry out and crack sooner where a building faces the weather. Plenty of Scottish homes have harled walls, and joints where harling meets other materials need a sealant that can grip and flex.
If you live in an older home near Belhaven Church, the joints between older walls, newer extensions and the roofline need a sealant that can move.
Bielside is about 9 miles east of Haddington, in East Lothian. Homes, rented property, offices and hotels in Bielside can book us for external mastic, old or new, large or small. The work is guaranteed for a year. Bielside is one of 48 towns and villages in East Lothian we cover. For nearby work, see our Edinburgh page.
Work in EH42 works the same way as everywhere else we cover. We also cover West Barns (1 mile south-east), Belhaven (1 mile north-east), Dunbar (1 mile east), Spott (2 miles south-east) and Broxburn (2 miles east). Within a short drive, we also cover Haddington (9 miles west), North Berwick (8 miles north-west), Longniddry (13 miles west), Gullane (11 miles west), East Linton (4 miles west) and Aberlady (12 miles west).
What’s near Bielside
The nearest railway station is Dunbar station, about 1.5 miles east. Nearby you will also find Dunbar Castle (1.6 miles north-east) and Dunbar Town House Museum and Gallery (1.5 miles east). The countryside around Bielside includes Doon Hill.
Leave it or put it right?
Water gets in through a failed movement joint and can run behind render or cladding. Resealing early keeps the job to the joint itself, instead of the wall and finishes around it. Around Bielside, water from a failed joint in an older stone home can soak into timber and plaster.
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. You’ll know the price before we begin.
Why book with us
- A sealant colour to suit the surroundings
- Trusted Arbo and Everbuild sealants
- Over 20 years’ experience
- Full insurance on every job
What affects the quote in Bielside
Some jobs are bigger than they look, and some smaller. What affects the quote:
- The old material and how stubborn it is
- The size of the job
- How easy the joints are to reach
- How many rooms, windows or areas are involved
We do not show prices on the website, because the cost depends so much on the job itself. Call for a quick quote.
What we need to know
When you contact us, these details help:
- Pictures of the joints, sent by email
- The address or postcode of the job
- What’s wrong with the joints now
- The type of property
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints.
How the job changes by surface
Joints between dissimilar materials
Brick against render, concrete against metal, stone against timber: every change of material is a joint. A flexible sealant bridges the two.
Cladding and façade panels
Cladding and façade panels are normally separated by sealed joints. We reseal them with a sealant suited to the panel material.
What we can’t put right
Before booking, it’s worth knowing the limits:
- Walls that need new movement joints cut into them
- Damp that is not coming from the joint
- Subsidence or other structural problems
If you are not sure, just send an email to info@mrmastic.co.uk and we’ll give you a straight answer before booking.
Surfaces we seal
- Joints between brick and frames
- Façade panels
- Brickwork movement joints
- Render & cladding joints
- Concrete & block
- Copings & trims
Can I do it myself?
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.
Also near Bielside
More services for Bielside
Bielside questions
Does living near the coast affect external mastic in Bielside?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. The right product, a clean joint and the right depth all help it cope.
Do you cover smaller places like Bielside?
Yes, we do. We work across all of Scotland, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
What do you need from me for a quote?
Let us know what needs doing and where. If we need more, we’ll ask.
Are you an approved applicator?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we are part of it.
Is there any odour?
Some sealants have a smell while they cure. Opening a window helps.
Can landlords and businesses book you?
Yes, regularly. We can quote for several properties at once.
Is there a guarantee?
Yes. Each job is guaranteed for twelve months.
Will you leave a mess?
No. We protect the surfaces around the joints, and we tidy up before we go.
What we do, step by step
There’s no need to move everything out, only the area right around the joints. We protect the rest, and the work takes anything from a few hours to several days, depending on the building in most cases. Somewhere like Bielside may be a longer drive, and the journey is planned ahead. Tell us about tracks, gates, a ferry crossing or anything unusual about getting there.
- First we look over the joints with you, agree which to renew and talk through access.
- Old sealant and any debris are cut and raked out.
- Both sides are cleaned back to sound material and primed if needed.
- We push in closed-cell backing rod so the sealant is the right depth and bonds to the sides only.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
Getting ready for the visit
- Mention any parking rules near the property
- Move anything stored near the joints
- Let us know about earlier repairs to the joints
Getting a quote
If you’re in Bielside and need external mastic, email us at info@mrmastic.co.uk. A short description of the job and where it is helps us quote, and you’ll get a clear quote before work begins.