Scottish Borders · Scotland
Romannobridge External Mastic
Sealing brickwork movement joints, render, cladding and façade joints in Romannobridge, with a one-year guarantee on every job. Ask us for a quote.
- Rigid filler in a joint that should flex
- Water getting into walls through failed joints
- Joints with sealant missing in places
What we can’t put right
We will not take on work that will not last, so here’s what sealant cannot put right:
- Adding movement joints to masonry that has none
- Subsidence or other structural problems
- Render that is blown, hollow or coming away
Not sure which it is? You can send an email to info@mrmastic.co.uk and we’ll tell you honestly.
Where we work in Romannobridge
- Render & cladding joints
- Copings & trims
- Brickwork movement joints
- Concrete & block
- Façade panels
- Joints between brick and frames
About our external mastic in Romannobridge
Getting the depth right is half the job. Closed-cell backing rod sets the depth and stops the sealant sticking to the back, leaving it bonded to two faces so it can move with the wall. If you’re dealing with old sealant gone brittle and cracked and sealant that has lost its bond to the brick or render, we can help.
Across smaller places in Scotland, stone and harled cottages, farm buildings and newer houses often stand exposed to wind and rain. Gutter joints and wall joints take a battering, so they need a sealant that moves with the building.
A 12-month guarantee comes as standard, so you are not left on your own once the job is done.
- Place
- Romannobridge (EH46)
- Wider area
- Scottish Borders
- Cover
- One year on every job
- Quotes
- A clear quote up front
- info@mrmastic.co.uk
- Updated
- 26 October 2026
The process
When we get to you, we check the joints match what you told us. If we find something unexpected, we talk it through with you first. After that, the work takes a few hours for a handful of joints, longer for a whole elevation. For a place like Romannobridge, longer drives are planned in advance. Tell us about tracks, gates, a ferry crossing or anything unusual about getting there.
- We start by walking round the building and agreeing the joints and the access.
- Every bit of old sealant and any mortar or debris is cut out.
- The faces are brushed clean and primed where the product requires it.
- Backing rod sized to the joint goes in to set the depth.
- The exterior sealant is applied, tooled and checked along its length.
Preparing for the visit
- Keep children and pets away from the work area
- Tell us if parking is tricky
- Try not to wet indoor joints just before the visit
Getting a quote
Want a quote for external mastic? Please email us at info@mrmastic.co.uk and tell us about the job. You’ll know what we plan to do, and what it will cost, before any work begins.
Related advice
Romannobridge questions
Will you come out to Romannobridge?
Yes, we do. 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.
Do you cover Romannobridge for external mastic?
Yes. We work across all of Scotland, and Romannobridge is part of that. Just drop us a line at info@mrmastic.co.uk with a few details of the job, and we will send you a clear quote.
Will you leave a mess?
Not at all. The area is protected while we work and cleaned up afterwards.
Is it worth trying it myself?
It depends on the job. High-level, external movement and fire-rated joints are professional jobs.
Can a movement joint be filled with mortar?
No. Mortar locks the joint solid, so the movement cracks the wall elsewhere. Use a flexible sealant with backing rod.
Can you match the colour of my brickwork?
The sealant colour is picked to suit the wall, so the joint sits quietly in the wall. Exterior sealants come in a good range of colours.
When will the joints need doing again?
There’s no fixed answer: sunny, exposed elevations and busy joints wear faster. A yearly look will tell you when they need doing. Our work comes with a one-year guarantee.
Can you seal over the old sealant?
No. Fresh sealant doesn’t stick to old sealant, and it traps any mould or water underneath. We remove it all first.
Why it’s worth doing now in Romannobridge
Resealing a run of joints in one go is normally better than patching one at a time. Joints of the same age tend to fail together, and access only has to be arranged once. Around Romannobridge, water from a failed joint in an older stone home can soak into timber and plaster.
We do not show prices on the website, because the cost depends so much on the job itself. For a quick quote, please send an email to info@mrmastic.co.uk.
Why choose Mr Mastic in Romannobridge
- An ARBOMaster approved applicator
- We’re fully insured
- We leave the area clean and tidy
- We never seal over old sealant
Take a look at how sealant jobs are priced and what customers say.
DIY sealant or a professional job?
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.
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
How we quote for external mastic
Jobs vary more than people expect. The main factors:
- When we can work, for business premises
- The old material and how stubborn it is
- How easy the joints are to reach
- The type of sealant required
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 make a difference, and we will explain the quote if you ask.
What we need to know
Photos help, but a description is a good start. Try to tell us:
- What the problem is, such as mould, gaps, leaks or cracking
- The rough size of the job
- Access, such as stairs, a lift or height
- A few photos by email, if you can
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we will explain how we’d tackle it. When it suits you, email us at info@mrmastic.co.uk.
Also near Romannobridge
Also in Romannobridge
Looking after it afterwards
Simple care keeps the joints in good condition. We recommend:
- Walk round the building once a year and look at the joints
- Show decorators and builders where the movement joints are
- Check the sealant is paintable before painting near it
- Fix overflowing gutters above sealed joints
Avoid pressure-washing straight into the joints. High-pressure water can lift the edges.
Leaks behind façade panels and render often go unseen. By the time there’s a damp patch, the damage can be well established so early resealing is worth it.
Surface by surface
Brickwork movement joints
People sometimes point up a brick movement joint by mistake. Where one has been mortared, we cut it out and reseal it with sealant where it can be done safely.
Render joints
Render has movement joints and stop beads that need sealing. They’re resealed in a sealant that suits the render.
Romannobridge buildings and the weather
Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and failed outside joints work against that. Harled (roughcast) walls are common in Scotland, and where harling meets frames, pipes and other materials, the joint needs a flexible sealant that grips a rough surface.
For jobs in and around Romannobridge, choosing the right material for each joint is as important as a tidy finish. Around Romannobridge, as everywhere, external mastic is only as good as the preparation behind it.
Romannobridge is about 9 miles south-west of Penicuik, in the Scottish Borders. We carry out external mastic for homeowners, landlords and businesses in Romannobridge. Romannobridge is one of 89 places in the Scottish Borders we cover for external mastic. There’s also a page for Edinburgh, roughly 16 miles from Romannobridge.
Work in EH46 is quoted and booked the same way as anywhere else. Neighbouring places we cover for external mastic include West Linton (2 miles north-west), Blyth Bridge (3 miles south-west), Kirkurd (4 miles south-west), Dolphinton (4 miles west) and Eddleston (5 miles east).
Near you in Romannobridge
Other landmarks nearby include Drochil Castle (3.3 miles south) and Castle Craig Hospital (3.4 miles south-west). For a walk, there’s Whiteside Hill and Slipperfield Loch.