Midlothian · Scotland
Edgehead External Mastic
External mastic across Edgehead and nearby, with every bit of old sealant taken out first and a one-year guarantee.
- Sealant pulling away from one side of the joint
- Rain getting behind render or cladding at a joint
- Joints with sealant missing in places
Why act early in Edgehead
It often makes sense to reseal all the failing joints on an elevation together. They’ve weathered the same way. Exposed walls in smaller Scottish places take a lot of wind and rain, and damp in stone or harled walls takes a long time to dry once water gets behind a joint.
A few things move the cost up or down: how much old sealant there is and how stubborn it is, any mould to treat, and whether the work is at height. Your quote takes all of that into account.
Why us?
- Trusted Arbo and Everbuild sealants
- More than 20 years in sealant work
- A 12-month guarantee on all work
- Sealant colour chosen to suit
See what affects the cost and what customers say.
How we handle external mastic in Edgehead
Joints in render and cladding are easy to overlook until a damp patch appears. We look over the joints, agree the ones to renew and reseal with a flexible, weatherproof product in a matching colour. We work on façade panels, copings & trims and concrete & block, and the jobs we see most are rigid filler in a joint that should flex and cracked joints where brick meets render or frames.
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.
Big or small, you get the same one-year guarantee in Edgehead and across Midlothian.
- Where
- Edgehead (EH37)
- Wider area
- Midlothian
- Guarantee
- One year on every job
- Quote
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
How the job changes by surface
Concrete and blockwork
Concrete and block walls shrink as they dry and move with temperature. Their movement joints are sealed over backing rod with a flexible sealant.
Joints between dissimilar materials
Brick against render, concrete against metal, stone against timber: every change of material is a joint. A flexible sealant bridges the two so the movement is taken up.
Aftercare tips
To keep the joints looking good and working properly:
- Keep water from gutters off the wall
- Point out the joints to other trades
- Keep high-pressure jets off the joints
- Have failed joints looked at early
Look over the joints once a year, ideally after winter. Splits, gaps at the edges or plants in the joint are early warning signs.
A joint that has stopped moving pushes the movement elsewhere, often as cracks near the joint. Catch it early and you reduce the risk.
Nearby places to Edgehead
More services for Edgehead
The process
All our tools and materials come with us in the van. After a quick look at the joints together, we protect the area and start. It normally takes a few hours for a handful of joints, longer for a whole elevation. Outside jobs in Edgehead need a dry day, because sealant won’t bond to a wet joint, so an outdoor job can move if the forecast changes. Work indoors isn’t affected.
- Each joint is checked and the colour of the new sealant agreed.
- We take out the old sealant until the faces are sound.
- Closed-cell backing rod is pushed in so the sealant bonds to two sides only.
- We prime the faces where required.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
Getting ready for the visit
- Let us know about earlier repairs to the joints
- Tell us if parking is tricky
- Plan for the work area to be out of bounds to pets and children
How to get a quote
We don’t publish a price list, because every job is different. Instead, your job gets its own clear quote. To get started, drop us a line at info@mrmastic.co.uk.
Read more
For landlords and businesses
For anyone letting property in or around Edgehead, jobs at different addresses can go on one quote. Send us the addresses and the work at each.
Housing providers, facilities teams and property managers book us too. We can quote a run of properties together.
External mastic in Edgehead: local notes
Harled (roughcast) walls are common in Scotland, and joints where harling meets other materials need a sealant that can grip and flex. With historic houses such as Melville Castle (about 4.1 miles west) nearby, there’s older building stock in the area around Edgehead as well as newer homes. Where a home is older, older walls and rooflines need a sealant that moves with them and suits the material.
If you look after a building such as Newbattle Community High School, its movement joints, gutters and trims need looking after like any other building’s. In the older streets around Cranston Parish Church, the joints between older walls, newer extensions and the roofline need a sealant that can move. For landlords with property near Newtongrange station, split movement joints are easy to miss on a rental until damp shows inside.
Edgehead is about 3 miles south-east of Dalkeith, in Midlothian. Whether you are in the middle of Edgehead or further out, external mastic is available for homes and businesses alike. 33 places in Midlothian are on our list. For nearby work, see our Edinburgh page (9 miles or so).
Here we cover the EH37 postcode area for external mastic. Local streets include Edgehead Road, The Loan and Elizabeth Dickson Gardens, all of which we cover. If you are just outside Edgehead, we cover D'Arcy (1 mile west), Mayfield (1 mile west), Easthouses (2 miles west), Newtongrange (2 miles west) and Gowkshill (2 miles south-west). Within a short drive, we also cover Bonnyrigg (4 miles west), Penicuik (9 miles west), Loanhead (6 miles west), Gorebridge (3 miles south-west), Shawfair (5 miles north-west) and Danderhall (5 miles north-west).
What’s near Edgehead
The closest station to Edgehead is Newtongrange station, roughly 2.7 miles west. A little further out are Midlothian Community Hospital (3.4 miles west) and Cousland Smiddy (2.1 miles north).
Quotes for external mastic in Edgehead
Jobs vary more than people expect. What affects the quote:
- The number of rooms or windows
- The old material and how stubborn it is
- Whether there’s mould to deal with
- The size of the job
Rather than a set price list, we look at what your job involves: how many joints, what’s in them now and how we reach them. You will know the price before we begin.
What we need to know
There’s no need for technical detail. Just tell us:
- Roughly how big the job is
- Whether it has been sealed before
- Whether it’s a home or a business
- What’s wrong with the joints now
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is.
Edgehead questions
Do you work for landlords with property near Newtongrange station?
Yes, landlords and agents are among the people we work for. You can drop us a line at info@mrmastic.co.uk with the details for a clear quote.
Is Edgehead in your area for external mastic?
Yes, Edgehead is within the area we cover. Our work covers the whole of Scotland. You can email us at info@mrmastic.co.uk and tell us what needs doing, and we will give you a clear quote.
Do I need to be at home?
If the work is inside, we need someone to let us in. Once we’ve agreed the job, you don’t need to watch us work.
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.
Which products do you use?
Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference, and we’ll explain our choice.
Do you hold any approvals?
Yes. We’re approved under the ARBOMaster scheme.
What colours does the sealant come in?
We choose a sealant colour to suit the brick, stone or render so the joint blends in. There’s a wide choice of exterior colours.
Is it OK to seal over old sealant?
No, and we never do. It may look fine at first, but the new bead soon lifts. The old sealant has to come out completely.
DIY versus a professional finish
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it doesn’t work out, we can still put it right.
The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.