Midlothian · Scotland
External Mastic in Silverburn
We cover Silverburn for sealing brickwork movement joints, render, cladding and façade joints. Old sealant removed completely, joints prepared properly and a 12-month guarantee.
- Cracked joints where brick meets render or frames
- Joints with sealant missing in places
- Rigid filler in a joint that should flex
Quotes for external mastic in Silverburn
Call for a quick quote. The main things that affect it are:
- Which sealant suits the joint
- Mould in or behind the old joints
- Any working-time requirements on site
- How many areas need sealing
We don’t show prices on the website, because each job is priced on what it involves. For a quick quote, please drop us a line at info@mrmastic.co.uk and we will talk you through it.
What we need to know
Photos help, but a description is a good start. Please mention:
- If it’s domestic, commercial or a hotel
- Where the property is
- Any access issues, like height or stairs
- Photos by email, if that is easy
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and add photos by email if you can.
About our external mastic in Silverburn
A movement joint is only as good as its depth. Closed-cell backing rod sets the depth and stops the sealant sticking to the back, so it bonds to the two sides only and can stretch. If you have moss and dirt in joints with no sealant left and sealant that has lost its bond to the brick or render, we can put it right.
Stone walls need a stone-friendly sealant, as acetoxy products can attack some stone. On newer homes, the movement joints and roofline trims are what need watching.
We stand behind the work with a one-year guarantee, so you are not left on your own once the job is done.
- Where
- Silverburn (EH26)
- Region
- Midlothian
- Guarantee
- One year on every job
- Quotes
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
The process
There isn’t much for you to do on the day. Show us the job and we’ll take it from there. The job generally takes anything from a few hours to several days, depending on the building. In smaller Scottish places, parking is usually less of an issue than access and distance. Let us know how to find you and how to reach the joints, and the visit is planned around that.
- 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.
- 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.
- We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.
Preparing for the visit
- Keep pets and children clear of the area while we work
- Let us know about parking restrictions
- Tell us about access, such as stairs, a lift or high-level joints
How to get a quote
For a quote, send an email to info@mrmastic.co.uk and tell us where the job is and what the problem looks like. We’ll give you a clear price before any work starts.
Advice
Silverburn buildings and the weather
Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and sound outside sealant is part of that. Plenty of Scottish homes have harled walls, and where harling meets frames, pipes and other materials, the joint needs a flexible sealant that grips a rough surface.
Around Silverburn, as everywhere, external mastic is only as good as the preparation behind it.
Silverburn is about 2 miles west of Penicuik, in Midlothian. Homes, rented property, offices and hotels in Silverburn can book us for external mastic. The work is guaranteed for a year. Across Midlothian, we cover 33 places, and Silverburn is one of them. There’s also a page for Edinburgh, about 8 miles away.
We work across EH26 for external mastic. You’ll find streets such as Biggar Road and Hopelands Road, and we cover them all. We also cover the places around Silverburn: Penicuik (2 miles east), Howgate (3 miles south-east), Milton Bridge (3 miles north-east), Bonaly (5 miles north) and Torphin (5 miles north). We also work in nearby towns such as Bonnyrigg (7 miles north-east), Dalkeith (9 miles north-east), Loanhead (6 miles north-east), Gorebridge (9 miles east), Newtongrange (9 miles east) and Mayfield (10 miles east).
Local landmarks in Silverburn
A little further out are Penicuik Paper Heritage Museum (2.1 miles east) and Brunston Castle (1.3 miles south). Open spaces near Silverburn include Scald Law.
Should I try it myself first?
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
What else we do in Silverburn
Signs you need external mastic in Silverburn
Every building moves. Brickwork grows a little over the years, blockwork and concrete shrink, and all of it moves with heat and moisture. The sealant in the movement joints takes that strain.
Most people get in touch after spotting one of these:
- Panel joints letting water in
- Rain getting behind render or cladding at a joint
- Hard, crazed mastic that has stopped moving
- Gaps where render, brick and frames meet
Schools such as Penicuik High School are buildings too, and its movement joints, gutters and trims need looking after like any other building’s.
Questions to ask before you book
- What insurance they hold
- How long to leave it before use
- Whether you can choose the colour
- Whether all the old sealant comes out first
What the job involves on each surface
Brickwork movement joints
Brick movement joints are often mistaken for a missing mortar line. If that’s happened, we rake it out and reseal it properly if the joint can be cleared.
Cladding and façade panels
Where a cladding system has its own specified sealant, we follow it or an approved alternative. Send us any details you have about the façade.
Landlord and commercial work in Silverburn
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
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.
What we cannot put right
Sealant isn’t the answer to every problem, and we will tell you before work begins. It will not solve:
- Failed render or damaged cladding panels
- Cracking across the wall rather than at a joint
- Rising or penetrating damp from elsewhere in the wall
If you are not sure, just send an email to info@mrmastic.co.uk and we will give you a straight answer.
Joints and surfaces we work on
- Façade panels
- Copings & trims
- Joints between brick and frames
- Brickwork movement joints
- Render & cladding joints
- Concrete & block
Silverburn questions
What guarantee comes with external mastic in Silverburn?
Every job comes with our one-year guarantee, wherever it is. We’re also fully insured and ARBOMaster approved.
Is Silverburn within the area you cover?
Yes, we do. We work across all of Scotland, and smaller places are part of that. Longer journeys are simply planned in advance.
How often do external joints need resealing?
It depends on the exposure, the movement and the product. Sealant is a maintenance item, so check the joints once a year and reseal when it splits.
Should I point up the gap in my brickwork?
No. A mortar-filled joint can’t move, so the movement cracks the wall elsewhere. Use a flexible sealant with backing rod.
Do you seal joints where cladding meets other materials?
Yes. We cut out the old sealant, prepare both faces and reseal with a flexible exterior product. The colour is chosen to suit.
Will the new joint stand out?
Exterior sealants are made in a range of colours, from greys and browns to whites and stone shades. We pick the one that suits your wall best so the joint doesn’t draw the eye.
Why do you put foam in the joint first?
Closed-cell backing rod sets the depth of the sealant and stops it sticking to the back of the joint. Then the sealant bonds to two faces and can move.
I rent my home. Can I book you?
We can work for tenants, landlords or agents. Get your landlord’s agreement first.