Midlothian · Scotland
External Mastic in Bonnyrigg
Movement joints in Bonnyrigg need attention? We remove the old material, prepare the joints and seal them properly, with a 12-month guarantee.
- Plants rooting in failed movement joints
- Cracked joints where brick meets render or frames
- Movement joints filled with mortar instead of sealant
About our external mastic in Bonnyrigg
Joints between dissimilar materials, like brick against render or concrete against a steel frame, see movement from both sides. A flexible exterior sealant takes up that movement where mortar or filler would crack. We work on concrete & block, brickwork movement joints and façade panels, and common reasons people get in touch are weathered mastic that no longer stretches and joints pointed up with cement by mistake.
In a town like Bonnyrigg, older stone-built streets sit alongside newer estates with brick, render and uPVC rooflines. Each has its own weak points: worn joints in old gutters, and dried-out movement joints in newer walls.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we will sort it.
- Where
- Bonnyrigg (EH19, EH18, EH20)
- Region
- Midlothian
- Guarantee
- One year on every job
- Quote
- Quoted before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Why it’s worth doing now in Bonnyrigg
Running new sealant over the old bead rarely lasts. The new layer cannot bond properly to old, weathered material, so we always take the old sealant out. For landlords in Bonnyrigg, damp and leaks can fall under the Repairing Standard. Sorting failed joints early is easier than dealing with a tenant’s complaint.
We don’t show prices on the website, because each job is priced on what it involves. For a quick quote, please send an email to info@mrmastic.co.uk.
Why us?
- Colour picked to suit the job
- Over 20 years’ experience
- We’re fully insured
- Experience in homes, commercial sites and hotels
Read how sealant jobs are priced or our reviews.
Bonnyrigg questions
Is external mastic in Bonnyrigg guaranteed?
All our work, in Bonnyrigg and everywhere else, comes with a 12-month guarantee. We are also fully insured and ARBOMaster approved.
Can you do external mastic in Bonnyrigg?
Yes, Bonnyrigg is within the area we cover. Our work covers the whole of Scotland. You can email us at info@mrmastic.co.uk and let us know what needs doing, and we will give you a clear price.
Do you have insurance?
Yes. Full insurance covers our work.
Is it messy?
Not at all. We work neatly, protect the area around the joints and tidy up afterwards.
Do you do commercial work?
Yes. Hotels, offices and other businesses use us, and we are fully insured.
Do you hold any approvals?
Yes. We are an ARBOMaster approved applicator, which is run for the Arbo sealant brand.
Will the old sealant be removed?
Yes. We cut out all the old sealant and clean the joint before applying anything new.
How long before the joint can be used?
Cure times vary by product. Before we leave, we’ll tell you the cure time.
Surface by surface
Joints between dissimilar materials
Each side of the joint may need its own preparation. We prepare both faces so the sealant bonds properly.
Cladding and façade panels
Cladding and façade panels are generally separated by sealed joints. We reseal them with a sealant suited to the panel material.
Landlords, agents and businesses in Bonnyrigg
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance that we can handle for you.
Housing providers, facilities teams and property managers book us too in Bonnyrigg and across Midlothian. Several sites can go on one quote, and we’re fully insured.
How the visit works
There isn’t much for you to do on the day. Point us to the joints and we’ll get on with it. The work itself takes a few hours to a few days, depending on the length of joint and the access, including the tidy-up. In a Scottish town like Bonnyrigg, parking is usually straightforward, though older centres can be tighter. For flats, mention the shared stair or door entry system.
- We inspect the joints and agree which need resealing and how they’ll be reached.
- The old mastic and anything lodged in the joint is removed.
- We clean both faces of the joint and prime them where the product calls for it.
- Closed-cell backing rod is fitted to set the depth and stop three-sided bonding.
- The new sealant, chosen to suit the brick or render, is applied and tooled to a neat finish.
Before we arrive
- Tell us about any water getting in
- For business premises, tell us about site rules or sign-in
- Let us know about parking restrictions
Ask for a quote
For external mastic in Bonnyrigg, email us at info@mrmastic.co.uk. Tell us what the problem is and where, and you will get a clear quote before any work starts.
Related advice
DIY versus a professional finish
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.
Signs you need external mastic in Bonnyrigg
Poor preparation causes many early failures: joint faces that were dusty or damp, unprimed where they needed it, or still carrying old sealant. The new sealant then lets go long before it should.
People normally contact us after spotting something like this:
- Failed seals between different materials
- Plants rooting in failed movement joints
- Rain getting behind render or cladding at a joint
- Failed sealant between panels on a façade
For site and facilities teams at buildings such as Lasswade High School Centre, its movement joints, gutters and trims need looking after like any other building’s.
Questions to ask before you book
- How the joint is cleaned and prepared
- Is VAT in the price?
- Are they insured?
- How long the guarantee is
What else we do in Bonnyrigg
What external mastic looks like in Bonnyrigg
Plenty of Scottish homes have harled walls, and joints where harling meets other materials need a sealant that can grip and flex. Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and failed outside joints work against that.
If you live in an older home near Bonnyrigg Parish Church, an extension built onto an older house moves differently, and the joint between them takes the strain. Letting a property close to Eskbank station? Then outside joints that have cracked can let damp into a rental, so check them between lets.
Bonnyrigg is about 6 miles south-east of Edinburgh, in Midlothian. If you need external mastic in Bonnyrigg, it’s easy to get a quote: please send an email to info@mrmastic.co.uk. We’re based in Crawley and cover Midlothian. Our area takes in 33 places across Midlothian, large and small. Our Edinburgh page covers work nearby.
Every address in EH19, EH18 and EH20 is covered for external mastic. External mastic is available to properties on Old Market Place, High Street and Church Road. Bonnyrigg is on the A768 and B704, which makes it straightforward to reach with everything needed for external mastic. Neighbouring places we cover for external mastic include Lasswade (1 mile north-west), Polton (1 mile west), Rosewell (2 miles south-west), Loanhead (2 miles west) and Roslin (3 miles west). Within a short drive, we also cover Penicuik (5 miles south-west), Gorebridge (3 miles south-east), Mayfield (3 miles east), Shawfair (4 miles north), Danderhall (3 miles north) and Bilston (3 miles west). Being one of Midlothian’s larger places, Bonnyrigg has every kind of property, from flats to offices.
Near you in Bonnyrigg
Typical jobs here are in homes near Public Library. The nearest railway station is Eskbank station, about 1.1 miles north-east. Well-known places in the area include Dalhousie Castle (1.2 miles south-east) and Midlothian Community Hospital (0.8 miles north-east). The countryside around Bonnyrigg includes The New Leaf Co-op and Edgelaw Reservoir.
Looking after it afterwards
To keep the joints looking good and working properly:
- Walk round the building once a year and look at the joints
- Tell anyone working on the walls about the movement joints
- Keep soil, plants and ivy away from the joints
- Fix overflowing gutters above sealed joints
Keep pressure washers away from the sealant. A strong jet can damage the edges of the bead and let water in behind.
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.