Scottish Borders · Scotland
Coldingham External Mastic
External mastic for Coldingham and the surrounding area: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- Rigid filler in a joint that should flex
- Leaking joints around cladding and façade panels
- Rain getting behind render or cladding at a joint
How we handle external mastic in Coldingham
A movement joint is only as good as its depth. Backing rod controls how deep the sealant goes and keeps it off the back of the joint, leaving it bonded to two faces so it can move with the wall. Typical jobs include damp patches traced to an open external joint and leaking joints around cladding and façade panels, on brickwork movement joints, render & cladding joints and façade panels.
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.
You get a 12-month guarantee, the same in Coldingham as everywhere else we work.
- Location
- Coldingham (TD14)
- Region
- Scottish Borders
- Cover
- 12 months on all our work
- Price
- A clear price before work begins
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
How it works
Every visit runs the same way: we check the joints, protect the area around them, carry out the job and clear up. Most jobs take a few hours to a few days, depending on the length of joint and the access. For a place like Coldingham, longer drives are planned in advance. 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.
- The joint faces are cleaned and primed where the sealant needs it.
- 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.
Preparing for the visit
- Try not to wet indoor joints just before the visit
- Move anything stored near the joints
- Keep pets and children clear of the area while we work
Get a quote
For external mastic in Coldingham, send an email to 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.
Advice
External mastic in Coldingham: local notes
Coldingham is within about 2 miles of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That’s hard on movement joints and outside wall joints, especially on the side facing the sea. Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and sound outside sealant is part of that.
Around Coldingham, as everywhere, external mastic is only as good as the preparation behind it.
Coldingham is in the Scottish Borders. Anywhere in TD14, we cover external mastic for homes and businesses. Our the Scottish Borders coverage runs to 89 places, Coldingham among them. You can also see our page for Edinburgh, about 41 miles away.
All of TD14 is covered for external mastic. You will find streets such as High Street, Bridge Street and Paradise. Nearby, we also carry out external mastic in Scottish Borders (1 mile north), St Abbs (1 mile north-east), Eyemouth (3 miles east), Reston (3 miles south-west) and Ayton (3 miles south).
What’s near Coldingham
The nearest railway station is Reston station, about 2.9 miles south-west. Other landmarks nearby include Press Castle (2 miles west) and Eyemouth Museum (2.9 miles east). Green spaces nearby include Coldingham Loch and Ayton Hill.
Aftercare tips
Once the sealant has cured, a few habits help it last:
- Don’t let climbing plants root in the sealant
- Get split or bare joints resealed while the damage is small
- Keep movement joints as flexible joints, not mortar
- Keep high-pressure jets off the joints
If you have more work done on the wall, such as new render, cladding or an opening, show the contractor the movement joints. They must stay as flexible joints, never rendered or pointed over.
If you can see gaps, plants or bare sections in a joint, have it checked. Early work is quicker and leaves a better finish.
Questions from Coldingham
I let a flat near Reston station. Can you help?
Yes, we work for letting agents and landlords. Just drop us a line at info@mrmastic.co.uk and tell us about the property, and we’ll send you a clear quote.
Does the coastal weather in Coldingham affect outside sealant?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. Choosing the right sealant for the frame and wall, laid at the right depth, helps it last.
Is it OK to seal over old sealant?
No, it won’t last. It can look neat for a few weeks, but the new layer lifts away from the old one. The old sealant has to come out completely.
Is there a guarantee?
Yes. All our work carries a 12-month guarantee.
Should I point up the gap in my brickwork?
No, not if it’s a movement joint. Pointing it stops it working and can lead to cracking. A flexible sealant is the right fill.
What is a movement joint?
It’s a deliberate gap that lets the wall expand and contract without cracking. It’s sealed with a flexible sealant, not mortar.
How much does external mastic cost in Coldingham?
We do not publish prices, because the cost depends on the job: how much there is, what’s there now, how we reach it and what it needs. We agree the price before any work begins.
Do I need to be at home?
For indoor joints, yes, someone needs to let us in. Once we’ve agreed the job, you don’t need to watch us work.
Signs you need external mastic in Coldingham
If plants are growing out of a joint, the sealant has generally failed or was never there. Dirt and roots then trap moisture in the joint.
People usually contact us after spotting one of these:
- Joints with sealant missing in places
- Movement joints filled with mortar instead of sealant
- Gaps where render, brick and frames meet
- Sealant pulling away from one side of the joint
If you let a flat or house near Reston station, split movement joints are easy to miss on a rental until damp shows inside.
Questions to ask before you book
- When the joint can take water or movement
- Which colour the sealant will be
- How long the guarantee is
- What product goes in the joint
Landlords, agents and businesses in Coldingham
In hotels, rooms out of use cost money, so we plan the work room by room around your bookings where we can. We’ve worked in hotels as well as homes and businesses.
From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Can I do it myself?
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.
The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.
What the job involves on each surface
Concrete and blockwork
The face of concrete or block is often dusty, so preparation is key. We prime where the sealant needs it before the bead.
Copings and trims
Copings expand and contract through the day, so a flexible sealant suits them best year round.
What else we do in Coldingham
What affects the cost of external mastic
The quote reflects the job in front of us. We look at:
- When we can work, for business premises
- The size of the job
- Which sealant suits the joint
- The old material and how stubborn it is
There are no prices on our website, because each job is priced on what it involves. For a quick quote, please drop us a line at info@mrmastic.co.uk.
Asking for a quote
Photos help, but a description is a good start. Try to tell us:
- Pictures of the joints, sent by email
- The type of property
- Access, such as stairs, a lift or height
- Where the job is, and your postcode
It all starts with a short chat. Describe the problem, the location and the size of the job, and we’ll explain how we’d tackle it. Whenever you are ready, send an email to info@mrmastic.co.uk.