Scottish Borders · Scotland
External & façade joints in Reston, Scottish Borders
Sealing brickwork movement joints, render, cladding and façade joints in Reston, with a 12-month guarantee on every job. Ask us for a quote.
- Hard, crazed mastic that has stopped moving
- Joints with sealant missing in places
- Plants rooting in failed movement joints
Can I do it myself?
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.
External mastic in Reston, done properly
On houses, flats and commercial buildings across Reston, we reseal joints in brickwork, render, cladding and façade panels. The preparation is the same whatever the wall: clean joint faces and the right depth. We work on concrete & block, brickwork movement joints and joints between brick and frames, and people most often call us about cracked joints where brick meets render or frames and weathered mastic that no longer stretches.
Stone walls need a stone-friendly sealant, as acetoxy products can attack some stone. Newer houses need their movement joints and roofline trims kept sound.
The work is guaranteed for twelve months. If something isn’t right with it in that time, tell us and we will put it right.
- Where
- Reston (TD14)
- Region
- Scottish Borders
- Guarantee
- 12 months on all our work
- Quotes
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Landlords, agents and businesses in Reston
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. We can quote for more than one property at once.
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
How the job changes by surface
Cladding and façade panels
If the façade has a specified sealant, that’s what we use, or one the system allows. Tell us what the building has when you get in touch.
Copings and trims
Copings expand and contract through the day, so the joints need a sealant that stays flexible year round.
Quotes for external mastic in Reston
The price is agreed before any work begins. It takes into account:
- The number of rooms or windows
- How much old sealant there is and how hard it is to remove
- Working hours on commercial sites
- Whether there’s mould to deal with
Every job is a little different, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all play a part.
What we need to know
What to tell us when you ask for a quote:
- What the problem is, such as mould, gaps, leaks or cracking
- Any previous sealing or DIY work
- Pictures of the joints, sent by email
- Whether it’s a home or a business
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and add photos by email if you can.
Walls and rooflines in Reston
Plenty of Scottish homes have harled walls, 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.
In the older streets around Reston Church Of Scotland, older walls, gutters and the joints where extensions meet them need a flexible sealant. If you let a flat or house near Reston station, outside joints that have cracked can let damp into a rental, so check them between lets.
Reston is in the Scottish Borders. Jobs in Reston get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Our area takes in 89 places across the Scottish Borders, from the larger towns to small villages. You can also see our page for Edinburgh, about 40 miles away.
We cover every part of the TD14 postcode area for external mastic and the streets around it. If you need external mastic at a property on Main Street, Ladeside and Newmains Farm Road or anywhere close by, we can help. Neighbouring places we cover for external mastic include Ayton (3 miles east), Coldingham (3 miles north-east), Scottish Borders (3 miles north-east), Chirnside (4 miles south) and St Abbs (4 miles north-east).
Near you in Reston
Reston has its own railway station: Reston station. Well-known places in the area include Ferney Castle (1.2 miles south). Green spaces nearby include Ayton Hill and Coldingham Loch.
Questions from Reston
Can you do external mastic in Reston?
Yes, Reston is within the area we cover. Our work covers the whole of Scotland. Just send an email to info@mrmastic.co.uk with a few details of the job.
I let a flat near Reston station. Can you help?
Yes. We work for landlords and letting agents as well as householders, and several properties can go on one quote. Just drop us a line at info@mrmastic.co.uk with the address and what needs doing, and we’ll send you a clear quote.
Can you reach joints on upper floors?
That depends on the building and the joints. We work on joints that can be reached safely. Tell us about the building and we will confirm what access is needed.
How do I get a quote for external mastic in Reston?
Every job is different, so each one gets its own quote. For a quick quote, email us at info@mrmastic.co.uk with a short description of the job.
Where is Mr Mastic based?
We work from Crawley. We cover Reston and the rest of the Scottish Borders.
Should I point up the gap in my brickwork?
No, not where the gap is a movement joint. Filling it with mortar defeats its purpose. We will reseal it with a flexible sealant.
Will it make a mess?
We keep the work tidy. We protect what’s around the joints, and the area is left clean when we finish.
Do you do commercial work?
Yes. We have worked for hotels, offices and other businesses.
The process
On the day, we start by going over the job with you, so you know exactly what we’re doing. We protect the surfaces around the joints before we start. Most jobs take anything from a few hours to several days, depending on the building. For a place like Reston, longer drives are planned in advance. Tell us about tracks, gates, a ferry crossing or anything unusual about getting there.
- 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.
- Primer is applied wherever the sealant needs it.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
Preparing for the visit
- Keep pets and children clear of the area while we work
- Tell us about access, such as stairs, a lift or high-level joints
- On commercial sites, let us know about site rules
Getting a quote
For a quote, email us at info@mrmastic.co.uk and tell us where the job is and what the problem looks like. We’ll send you a clear quote before any work starts.
Related advice
When something else is needed
To be straight with you, there are a few things sealant won’t fix:
- Movement that’s more than a sealant joint can take
- 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 send an email to info@mrmastic.co.uk and we will give you a straight answer.
Where we work in Reston
- Joints between brick and frames
- Render & cladding joints
- Concrete & block
- Brickwork movement joints
- Copings & trims
- Façade panels
Keeping the joints in good condition
To keep the joints looking good and working properly:
- Keep soil, plants and ivy away from the joints
- Check external joints each spring
- Show decorators and builders where the movement joints are
- Avoid pressure-washing directly into sealant joints
Keep the joints clear of soil, plants and climbing growth. Anything that holds water against the joint wears it out sooner.
A joint that has stopped moving pushes the movement elsewhere, often as cracks near the joint. Resealing it early helps prevent that.