Midlothian · Scotland
Loanhead External Mastic
External mastic in Loanhead from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Sealant pulling away from one side of the joint
- Rigid filler in a joint that should flex
- Cracked joints where brick meets render or frames
External mastic in Loanhead
Failed sealant is cut out, the depth set with closed-cell backing rod, and the joint resealed with a low-modulus sealant made for outside. We pick a colour that sits well with the wall so the line blends in. We’re often asked to deal with joints where the bead has come unstuck and brick movement joints where the sealant has split, across façade panels, joints between brick and frames and brickwork movement joints.
Older stone buildings need a sealant that suits the stone, not an acetoxy product that can mark or attack it. Newer houses need their movement joints and roofline trims kept sound.
Whatever the size of the job, it’s backed by our 12-month guarantee in Loanhead and across Midlothian.
- Where
- Loanhead (EH20)
- Region
- Midlothian
- Guarantee
- A year, on every job
- Price
- Quoted before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026

Why deal with it now?
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. In an older home around Loanhead, damp from a failed joint can get into timber and plaster, which is a far bigger job than the sealant.
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.
Why choose Mr Mastic in Loanhead
- Arbo and Everbuild products
- Old sealant always removed completely
- Approved under the ARBOMaster scheme
- 180+ five-star Google reviews
When something else is needed
Honest advice matters more to us than a booking, so here’s what sealant cannot fix:
- Walls that need new movement joints cut into them
- Rising or penetrating damp from elsewhere in the wall
- Movement that’s more than a sealant joint can take
If you are not sure, just send an email to info@mrmastic.co.uk and we’ll give you a straight answer before you book.
Surfaces we seal
- Render & cladding joints
- Joints between brick and frames
- Façade panels
- Concrete & block
- Brickwork movement joints
- Copings & trims
What affects the quote in Loanhead
There’s no set price list, because jobs vary so much. The quote depends on:
- Which sealant suits the joint
- How much old sealant there is and how hard it is to remove
- Any mould that needs treating
- How easy the joints are to reach
Combining jobs into one visit generally makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. We’ll send you a clear quote for the lot.
What to tell us for a quote
Photos by email are helpful but not essential. Try to tell us:
- A few pictures by email, if you can
- Whether it’s a home or a business
- How we’d reach the joints
- The address or postcode of the job
There’s no standard price list. Instead, your job gets its own clear quote. To get started, send an email to info@mrmastic.co.uk.
Nearby places to Loanhead
What else we do in Loanhead
Do you need external mastic in Loanhead?
A lot of failed joints come down to preparation: dusty or wet faces, no primer where one was needed, or old sealant left in. The sealant never bonds properly.
Look out for these signs:
- Joints where the bead has come unstuck
- Panel joints letting water in
- Old sealant gone brittle and cracked
- Weeds or debris growing in open joints
Letting a property close to Eskbank station? Then failed wall and movement joints let damp in, so they’re worth checking between tenancies.
What to look for in a quote
- Whether all the old sealant comes out first
- How the colour is chosen
- What guarantee comes with the work
- Who turns up on the day
Landlord and commercial work in Loanhead
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we will quote.
External mastic in Loanhead: local notes
Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and sound outside sealant is part of that. With historic houses such as Melville Castle (about 2.2 miles north-east) nearby, there’s older building stock in the area around Loanhead as well as newer homes. In older buildings, older brick and stone need a sealant that suits them, at the right joint depth.
Managing a site like Lasswade High School Centre? Then movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. Melville Castle, about 2.2 miles north-east, is one of the historic houses in the wider area around Loanhead.
Loanhead is about 2 miles west of Bonnyrigg, in Midlothian. Jobs in Loanhead get the same care as everywhere else we work: old sealant removed completely, careful preparation and a one-year guarantee. We cover 33 towns and villages across Midlothian, from the larger towns to small villages.
Postcode districts we cover here for external mastic: EH20. External mastic is available to properties on Station Road, Main Street and High Street and the roads around them. Loanhead is on the A701 and A768, so it’s easy for us to get to. Other places close to Loanhead include Old Pentland (1 mile west), Bilston (1 mile south-west), Polton (1 mile south-east), Burdiehouse (1 mile north) and Roslin (1 mile south). We also work in nearby towns such as Dalkeith (4 miles east), Penicuik (4 miles south-west), Gorebridge (5 miles south-east), Newtongrange (4 miles east), Mayfield (5 miles east) and Shawfair (4 miles north-east). Loanhead is one of the larger places we cover in Midlothian.
Local landmarks in Loanhead
The closest station to Loanhead is Eskbank station, roughly 2.9 miles east. A little further out are Cameron Toll Shopping Centre (3.3 miles north) and Glencorse Museum (3 miles south-west). The countryside around Loanhead includes Caerketton Hill and The New Leaf Co-op.
What happens on the day
On the day, there’s very little for you to do. Point us to the joints and we will get on with it. The job generally takes a few hours to a few days, depending on the length of joint and the access, including the tidy-up. Outdoor work around Loanhead depends on the weather, as sealant needs a dry surface, so external jobs may need to move if the day turns wet. Work indoors isn’t affected.
- We start by checking each joint, agreeing the ones to redo and how we will reach them.
- We cut out the failed sealant and rake out any dirt or growth.
- Both sides are cleaned back to sound material and primed if needed.
- Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
- We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.
Preparing for the visit
- Let us know about parking restrictions
- For indoor joints, keep the area dry beforehand if you can
- Mention any sign-in or site rules at work premises
How to get a quote
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we’ll explain how we’d tackle it. Whenever you are ready, drop us a line at info@mrmastic.co.uk.
Advice
Your questions about external mastic in Loanhead
I let a flat near Eskbank station. Can you help?
Yes. We work for letting agents and landlords as well as householders. Just drop us a line at info@mrmastic.co.uk with the address and what needs doing, and we will send you a clear quote.
Is Loanhead in your area for external mastic?
Yes, Loanhead is within the area we cover. We work across all of Scotland. Just drop us a line at info@mrmastic.co.uk with a few details of the job.
What does external mastic cost?
There’s no set price, as it depends on the job: how much there is, what’s there now, how we reach it and what it needs. You will get a clear quote before we start.
Should I point up the gap in my brickwork?
No. Cement or mortar cannot stretch. Where a joint has been mortared, it can often be raked out and sealed properly.
How long should I leave it?
Many sealants skin over quickly but take longer to cure fully. We’ll tell you how long to leave the joint before we leave.
Is there any odour?
Some sealants have a smell while they cure, but it fades. Ventilation helps.
Do you have insurance?
Yes. We are fully insured for every job we do.
Do I need to be at home?
If the work is inside, we need someone to let us in. After that, you can carry on with your day.
Different surfaces, different methods
Render joints
The face of render can be soft, so a low-modulus sealant is kinder to the joint edges. We prime where the product needs it.
Brickwork movement joints
Brick walls have vertical movement joints to absorb expansion. We reseal them with a low-modulus sealant over backing rod in a colour to suit the brick.
