Aberdeen · Scotland
Summerhill External Mastic
Professional external mastic in and around Summerhill, with old sealant always removed completely and a 12-month guarantee.
- Movement joints with cracked, split or missing sealant
- Leaking joints around cladding and façade panels
- Rigid filler in a joint that should flex
Your questions about external mastic in Summerhill
Do you cover Summerhill for external mastic?
Yes, Summerhill 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.
How is work on the outside of a tenement in Summerhill usually arranged?
Shared parts of a tenement, such as the roof and outside walls, are normally repaired with the agreement of the owners, often through a property factor. Where the title deeds are silent, the Tenements (Scotland) Act 2004 fills the gaps. Windows often belong to the individual flat, but it’s worth checking your deeds.
How do you reach high-level joints?
Each building is different. Tell us the height, the number of joints and what’s below them.
What information do you need?
Where the job is, what the problem is and roughly how big it is. If you can, email a few pictures.
How often do external joints need resealing?
It varies with how exposed the wall is and how much the joint moves. Look for splits, hardening or edges coming away and have them redone then.
What is backing rod for?
We fit closed-cell backing rod wherever the joint depth needs controlling. It sets the sealant depth and prevents three-sided bonding.
Should I point up the gap in my brickwork?
No, not if it’s a movement joint. Filling it with mortar defeats its purpose. We will reseal it with a flexible sealant.
Can you seal over the old sealant?
No. Fresh sealant does not stick to old sealant, and it traps any mould or water underneath. We remove it all first.
External mastic in Summerhill
We are ARBOMaster approved applicators, and each external joint gets a sealant suited to it. Some surfaces need a primer before sealing and we use one wherever it does. We work on copings & trims, façade panels and joints between brick and frames, and the jobs we see most are plants rooting in failed movement joints and cracked joints where brick meets render or frames.
Gutters and downpipes on tall city tenements are a long way up, so a leaking joint can run down the stone for months before anyone notices. In Summerhill, access needs planning, and work on shared parts may need the other owners’ agreement.
Whatever the size of the job, it’s backed by our 12-month guarantee.
- Place
- Summerhill (AB16, AB15, AB25)
- Region
- Aberdeen
- Cover
- One year on every job
- Quotes
- A clear price before work begins
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
What the job involves on each surface
Render joints
Render has movement joints and stop beads that need sealing. We reseal them with a flexible exterior sealant that suits the render colour.
Cladding and façade panels
Panels heat up and cool down quickly, so the joint sealant has to cope with frequent movement. The sealant is chosen with that in mind.
Nearby places to Summerhill
More services for Summerhill
Summerhill buildings and the weather
Historic houses like Friendville (about 1.4 miles south-east) are a reminder that the area around Summerhill has older buildings as well as new. Where a home is older, older brick and stone need a sealant that suits them, at the right joint depth. Harled (roughcast) walls are common in Scotland, and where harling meets frames, pipes and other materials, the joint needs a flexible sealant that grips a rough surface.
Historic houses such as Friendville, about 1.4 miles south-east, show how far back building around Summerhill goes. If you look after a building such as Oakbank School, larger buildings have long runs of movement joint that eventually need resealing.
Summerhill is about 1 mile west of Aberdeen, in Aberdeen. From the centre of Summerhill to the outskirts, external mastic is available for homes and businesses alike. Across Aberdeen, we cover 63 places, and Summerhill is one of them.
We work across the AB16, AB15 and AB25 postcode area for external mastic. If you need external mastic at a property on Eday Road, Sanday Road and Gairsay Road or a nearby road, we can help. Summerhill sits on or near the A944. Close by, we work in Mastrick (1 mile north-west), Rubislaw (1 mile south-east), Midstocket (1 mile east), Craigiebuckler (1 mile south) and West End (1 mile south-east). We also work in nearby towns such as Dyce (4 miles north), Portlethen (6 miles south), Cove Bay (4 miles south-east), Torry (3 miles east), Peterculter (5 miles south-west) and Kincorth (3 miles south-east).
Around Summerhill
Around Summerhill, our work takes us to homes and buildings near Northfield Academy, Hazlehead Park and Airyhall Primary School, among other places. Summerhill’s nearest station is Aberdeen station, about 2.3 miles east. A little further out are Gordon Highlanders Museum (0.9 miles south-east) and Woodend Hospital (0.6 miles west). Open spaces near Summerhill include Rubislaw Quarry and Gallows Hill.
What we do, step by step
Once we are on site, we check the joints match what you told us. If anything is different, we explain it before carrying on. Most jobs then take anything from a few hours to several days, depending on the building. Many homes in Scotland’s cities are tenement flats, reached through a shared close and up a common stair. For a job in Summerhill, tell us the floor, how the door entry system works and where we can park nearby.
- First, the joints are inspected and the access agreed.
- We cut out the old mastic and rake out anything in the joint.
- The faces are brushed clean and primed where the product requires it.
- Backing rod sized to the joint goes in to set the depth.
- We apply the sealant, tool it and check the whole run.
How to prepare
- Mention if the joints have been sealed before
- Tell us if parking is tricky
- Tell us about any water getting in
Getting a quote
Call for a quick quote, or email us if that is easier. Tell us about the joints that need doing and we will explain what’s involved and send you a clear quote.
Advice
For landlords and businesses
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
In hotels, rooms out of use cost money, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
Quotes for external mastic in Summerhill
We quote each job individually. These are the things that affect it:
- Whether the work is at height
- Whether there’s mould to deal with
- Any working-time requirements on site
- Whether old sealant or filler has to be cut out
The cost reflects the work involved, not guesswork. That is why we ask about the job first.
Helping us quote
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- What the problem is, such as mould, gaps, leaks or cracking
- A few photos by email, if you can
- The type of property
- Access, such as stairs, a lift or height
We quote each job on its own, so the first step is telling us about yours. Just drop us a line at info@mrmastic.co.uk with the details, and photos are welcome.
DIY versus a professional finish
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
Why deal with it now?
Water gets in through a failed movement joint and can run behind render or cladding. Dealing with it early keeps the repair to the joint, rather than the wall around it. Private landlords in Summerhill must meet the Repairing Standard, and damp or leaks can fall short of it, so failed sealant is best replaced before it becomes a complaint.
No two jobs are quite the same, so each one gets its own quote. Size, access and the product the joint needs all play a part.
Why us?
- A 12-month guarantee on all work
- Colour picked to suit the job
- White, clear, grey or coloured to suit, where the product allows
- Arbo and Everbuild products
Take a look at what affects the cost and our reviews.
When to call us in Summerhill
The wrong product in a moving joint is a classic cause. A stiff, general-purpose sealant cannot cope with a joint that moves a lot, so it pulls away from the edges.
These are the problems we are asked about most:
- Joints with sealant missing in places
- Old sealant gone brittle and cracked
- Sealant pulling away from one side of the joint
- Rigid filler in a joint that should flex
If you let a flat or house near Aberdeen station, outside joints that have cracked can let damp into a rental, so check them between lets.
Before booking anyone
- What preparation is included
- How long the guarantee is
- How much experience the applicator has
- What happens if the job turns out different