Aberdeen · Scotland
External & façade joints in Mastrick, Aberdeen
Problem with your movement joints in Mastrick? We cut out the old, prepare the joints and apply the right sealant, with a one-year guarantee.
- Sealant pulling away from one side of the joint
- Weeds or debris growing in open joints
- Gaps where render, brick and frames meet
What happens if it’s left?
A failed movement joint lets water into the wall and can run behind render or cladding. Dealing with it early keeps the repair to the joint, instead of the wall and finishes around it. Wind-driven rain gets into any failed joint on the outside of a city building, and in a tall building in Mastrick, damp can travel a long way before it shows.
Doing several joints on one visit usually makes better use of the time than several visits, so tell us about everything that needs sealing. You’ll get one clear quote for the whole job.
Why us?
- 4.9 on Google from 180+ five-star reviews
- More than 20 years in sealant work
- Colour picked to suit the job
- Anti-fungal sanitary silicone in wet areas
Take a look at our cost guide and customer reviews.
About our external mastic in Mastrick
Getting the depth right is half the job. Backing rod controls how deep the sealant goes and keeps it off the back of the joint, so it bonds to the two sides only and can stretch. If you’re dealing with movement joints with cracked, split or missing sealant and gaps where render, brick and frames meet, we can help, whatever the surface.
Alongside their tenements, Scotland’s cities have modern blocks with render, cladding and movement joints. In Mastrick, those joints dry out over time and let water in behind the render or cladding.
We stand behind the work with a one-year guarantee, so you’re covered after we have gone.
- Location
- Mastrick (AB16, AB15)
- Region
- Aberdeen
- Cover
- A year, on every job
- Quotes
- A clear quote up front
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Your questions about external mastic in Mastrick
Is Mastrick in your area for external mastic?
Yes, Mastrick is within the area we cover. Our work covers the whole of Scotland. Just email us at info@mrmastic.co.uk with a few details of the job.
Do you work for landlords with property near Aberdeen station?
Yes, rental work is part of what we do. Just send an email to info@mrmastic.co.uk and tell us about the property, and we will give you a clear quote.
Will it make a mess?
We keep the work tidy. We protect what’s around the joints.
How long does external mastic take?
As a guide, most jobs take a few hours for a handful of joints, longer for a whole elevation. Larger jobs naturally take longer.
How often do external joints need resealing?
It varies from wall to wall: sunny, exposed elevations and busy joints wear faster. A yearly look will tell you when they need doing. Every job carries our 12-month guarantee.
How long before the joint can be used?
Most sealants are touch-dry well before they’re fully cured. We’ll give you the cure time for the product we used.
What is backing rod for?
The foam is closed-cell backing rod. It stops the sealant going in too deep and bonding to three sides, which would stop it stretching.
What sealant do you use?
Each joint gets the product that suits it. Movement, water and weather all affect the choice, and we’ll tell you what we are using.
How the job changes by 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
If the façade has a specified sealant, that’s what we use. Send us any details you have about the façade.
What happens on the day
Once we’re on site, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. Most jobs then take a few hours to a few days, depending on the length of joint and the access. In a city area like Mastrick, parking may be by permit or pay-and-display, so tell us what’s nearby. For flats, mention the door entry system and any shared-stair arrangements.
- First, the joints are inspected and the access agreed.
- Every bit of old sealant and any mortar or debris is cut out.
- Joint faces are cleaned back and primed if the sealant needs it.
- Backing rod sized to the joint goes in to set the depth.
- The exterior sealant is applied, tooled and checked along its length.
How to prepare
- Clear items away from the joints we are working on
- Let us know about parking restrictions
- Mention any tricky access
Getting a quote
We quote each job on its own, so the first step is telling us about yours. Simply send an email to info@mrmastic.co.uk and describe the job.
Advice
Also near Mastrick
Other services in Mastrick
Do you need external mastic in Mastrick?
Using the wrong sealant is another common reason. A high-modulus or general-purpose sealant can be too rigid for a busy joint, and it tears off the sides.
The problems people normally mention when they call include:
- Moss and dirt in joints with no sealant left
- Joints with sealant missing in places
- Failed seals between different materials
- Hard, crazed mastic that has stopped moving
Friendville, about 1.9 miles south-east, is one of the historic houses in the wider area around Mastrick.
Comparing quotes
- Whether all the old sealant comes out first
- What product goes in the joint
- Are they insured?
- How long to leave it before use
What sealant work cannot fix
We will always be straight with you, so here’s what sealant can’t fix:
- Damp that isn’t coming from the joint
- Cracks in the bricks or render themselves, away from the joints
- Render that’s blown, hollow or coming away
Not sure which it is? You can drop us a line at info@mrmastic.co.uk and we will tell you honestly before booking.
Joints and surfaces we work on
- Façade panels
- Concrete & block
- Brickwork movement joints
- Render & cladding joints
- Joints between brick and frames
- Copings & trims
Keeping the joints in good condition
Good habits help new joints last longer. Our tips:
- Keep movement joints as flexible joints, not mortar
- Tell anyone working on the walls about the movement joints
- Check external joints each spring
- Keep water from gutters off the wall
Avoid pressure-washing straight into the joints. A strong jet can damage the edges of the bead and let water in behind.
Water getting behind cladding or render can go unnoticed for a long time. 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 Mastrick: local notes
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, and many buildings use a factor to arrange it. Your title deeds say which parts are shared. Plenty of Scottish homes have harled walls, and joints where harling meets other materials need a sealant that can grip and flex.
If you let a flat or house near Aberdeen station, failed wall and movement joints let damp in, so they’re worth checking between tenancies. If you look after a building such as Northfield Academy, larger buildings have long runs of movement joint that eventually need resealing.
Mastrick is about 2 miles west of Aberdeen, in Aberdeen. Mastrick gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Mastrick is one of 63 towns and villages in Aberdeen where we work.
Work in AB16 and AB15 works the same way as everywhere else we cover. We cover properties on Tay Road, Eday Road and Lewis Road and the roads around them. If you are just outside Mastrick, we cover Summerhill (1 mile south-east), Northfield (1 mile north), Cummings Park (1 mile north-east), Midstocket (1 mile east) and Cornhill (1 mile east). Larger places within reach include Ferryhill (3 miles south-east), New Aberdeen (3 miles east), Dyce (3 miles north), Portlethen (7 miles south), Cults (3 miles south) and Cove Bay (4 miles south-east).
Landmarks near Mastrick
Typical jobs here are in homes near Hazlehead Park and Hazlehead Academy, among other places. The closest station to Mastrick is Aberdeen station, roughly 2.6 miles east of the centre. Well-known places in the area include Mar's Castle (2.5 miles east) and Woodend Hospital (0.6 miles south-west). Not far away are Rubislaw Quarry and Gallows Hill.
Landlords, agents and businesses in Mastrick
Housing providers, facilities teams and property managers book us too in Mastrick and across Aberdeen. We can quote a run of properties together.
From a single let to a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a one-year guarantee.