Edinburgh · Scotland
External & façade joints in Gilmerton, Edinburgh
External mastic in Gilmerton from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Rigid filler in a joint that should flex
- Joints where the bead has come unstuck
- Weeds or debris growing in open joints
Looking after it afterwards
After the cure time, these simple habits help:
- Check external joints each spring
- Keep movement joints as flexible joints, not mortar
- Get split or bare joints resealed while the damage is small
- Clear growth from the base of walls and joints
Give the sealant the cure time we tell you before anything rubs against it. Most exterior sealants skin fast but take longer to cure right through.
Leaks behind façade panels and render often go unseen. When it finally shows inside, the joint may have been open for years, so it’s worth resealing at the first signs.
External mastic in Gilmerton, done properly
As ARBOMaster approved applicators, we choose exterior sealants to suit the joint and the surfaces. Porous or awkward surfaces are primed where the sealant needs it. We work on copings & trims, joints between brick and frames and render & cladding joints, and people most often call us about weathered mastic that no longer stretches and failed sealant between panels on a façade.
Alongside their tenements, Scotland’s cities have modern blocks with render, cladding and movement joints. Around Gilmerton, as anywhere, those joints dry out and crack over time, letting water behind the face of the building.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Where
- Gilmerton (EH17, EH16)
- Wider area
- Edinburgh
- Cover
- One year on every job
- Quotes
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
What happens if it’s left?
Water gets in through a failed movement joint, behind render and cladding. Dealing with it early keeps the repair to the joint, rather than the wall around it. Wind-driven rain gets into any failed joint on the outside of a city building, and in Gilmerton, damp can spread through stone and plaster before anyone sees it.
Every job is a little different, so we quote each one individually. Size, access and the product the joint needs all play a part, and we’ll explain the quote if you ask.
What you get with us
- Old sealant always removed completely
- One-year guarantee on every job
- Neat joints and a tidy finish
- Anti-fungal sanitary silicone in wet areas
What affects the quote in Gilmerton
The price is agreed before any work begins. It’s based on:
- The number and length of the joints
- Whether old sealant or filler has to be cut out
- The type of sealant required
- When we can work, for business premises
Instead of a standard rate, we look at what your job involves: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
Helping us quote
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- Whether it’s a home or a business
- What’s wrong with the joints now
- How many joints, rooms or windows are involved
- Access, such as stairs, a lift or height
Asking for a quote is easy: let us know the job and the location. A few photos by email make the job easier to understand, and we will come back to you with a quote.
Landlords, agents and businesses in Gilmerton
From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we will give you a quote.
How the job changes by surface
Concrete and blockwork
The face of concrete or block is often dusty, so cleaning and priming matter. We prime where the sealant needs it before sealing.
Cladding and façade panels
If the façade has a specified sealant, that’s what we use, or one the system allows. Send us any details you have about the façade.
Also near Gilmerton
Also in Gilmerton
Should I try it myself first?
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, and the work is guaranteed for a year.
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.
Your questions about external mastic in Gilmerton
Who arranges sealant work on the shared parts of a tenement in Gilmerton?
It usually goes through the owners together, or through the factor if the building has one. The Tenements (Scotland) Act 2004 covers the common parts where the deeds don’t, and we can quote for the factor or the owners directly.
Do you work for landlords with property near Shawfair station?
Yes, rental work is part of what we do. Just drop us a line at info@mrmastic.co.uk and tell us about the property, and we will give you a clear price.
Is it OK to seal over old sealant?
No, and we never do. It can look neat for a few weeks, but the new layer lifts away from the old one. Removing the old sealant completely is the only lasting way.
Where do you work from?
Mr Mastic is based in Crawley. We cover Gilmerton and the rest of Edinburgh.
Will there be a smell?
Sometimes, a little. Any smell clears as the sealant cures.
Do you work at height?
That depends on the building and the joints. Where joints can be reached safely, we’ll do them. Give us some details and we’ll confirm the access.
Do you seal joints where cladding meets other materials?
Yes. Joints between dissimilar materials are a big part of external work. We use a flexible sealant suited to both surfaces.
How long before the joint can be used?
Cure times vary by product and the conditions. Before we leave, we’ll tell you the cure time.
How it works
Our applicators work methodically: protection first, then preparation, sealing and a tidy-up. Typically it takes a few hours to a few days, depending on the length of joint and the access, and the area is left clean. Many homes in Scotland’s cities are tenement flats, reached through a shared close and up a common stair. In Gilmerton, it helps to know the floor, the door entry arrangements and the nearest parking.
- First, the joints are inspected and the access agreed.
- 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.
- We fit closed-cell backing rod to control the depth.
- We apply the sealant, tool it and check the whole run.
Getting ready for the visit
- Where the joints are inside, avoid wetting them before we arrive
- Clear items away from the joints we’re working on
- For business premises, tell us about site rules or sign-in
Getting a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Describe what needs sealing and we’ll explain what’s involved.
Advice
What external mastic looks like in Gilmerton
Under the Tenements (Scotland) Act 2004, shared parts of a tenement, such as the roof and outside walls, are looked after by the owners together, often through a property factor. Your title deeds say which parts are shared. Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and failed outside joints work against that.
Managing a site like Gracemount High School? Then its movement joints, gutters and trims need looking after like any other building’s. Melville Castle, about 1.4 miles south-east, is one of the historic houses in the wider area around Gilmerton, and older homes nearby need a sealant that suits their walls. For landlords with property near Shawfair station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Gilmerton is about 4 miles south-east of Edinburgh, in Edinburgh. For external mastic in and around Gilmerton, it’s easy to get a quote: please drop us a line at info@mrmastic.co.uk. We cover Edinburgh from our Crawley base, Gilmerton included. Our area takes in 175 places across Edinburgh.
Every address in EH17 and EH16 is covered for external mastic, from the main roads to the quietest streets. We cover properties on Drum Avenue, Brosie Road and Hyvot Avenue and the roads around them. With the A772 close by, Gilmerton is easy for our applicators to reach for external mastic. We also cover the places around Gilmerton: Ferniehill (1 mile north), Fernieside (1 mile north), Moredun (1 mile north), Craigour (1 mile north) and Ellen's Glen (1 mile north-west). Larger places within reach include Edinburgh (4 miles north-west), Leith (5 miles north), Bonnington (5 miles north), Greenside (4 miles north-west), Broughton (4 miles north-west) and Bellevue (5 miles north-west).
Local landmarks in Gilmerton
Around Gilmerton, our work takes us to homes and buildings near Drum Park and the streets around them. For rail, the closest station is Shawfair station, about 1.8 miles north-east. A little further out are Cameron Toll Shopping Centre (2 miles north-west) and Craigmillar Castle (1.5 miles north). Green spaces nearby include The New Leaf Co-op and Duddingston Loch.