Aberdeenshire · Scotland
External Mastic in Gartly
External mastic in Gartly from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Leaking joints around cladding and façade panels
- Joints where the bead has come unstuck
- Old sealant gone brittle and cracked
External mastic in Gartly, done properly
We cut out failed sealant, set the joint depth with closed-cell backing rod and reseal with a low-modulus exterior sealant. We pick a colour that sits well with the wall. We work on render & cladding joints, façade panels and concrete & block, and people most often call us about damp patches traced to an open external joint and leaking joints around cladding and façade panels.
In and around a place like Gartly, many buildings face open ground and take the full weather. Outside joints on exposed walls work hard, so they need a sealant that moves with 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
- Gartly (AB54)
- Wider area
- Aberdeenshire
- Cover
- 12 months on all our work
- Quote
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Different surfaces, different methods
Render joints
Water behind render can lead to blown patches. Resealing the joints early keeps water out and helps it last.
Cladding and façade panels
Cladding and façade panels are generally separated by sealed joints. Each joint gets a sealant that suits the panel and its movement.
What sealant work cannot fix
It helps to know what we cannot do too:
- Cracked brickwork or render that needs a builder or plasterer
- Cutting new joints into brickwork, which is building work rather than sealant work
- Rising or penetrating damp from elsewhere in the wall
If you are not sure, just drop us a line at info@mrmastic.co.uk and we’ll give you a straight answer.
Where we work in Gartly
- Render & cladding joints
- Façade panels
- Concrete & block
- Copings & trims
- Joints between brick and frames
- Brickwork movement joints
When to call us in Gartly
Every building moves. Brickwork grows a little over the years, blockwork and concrete shrink, and all of it moves with heat and moisture. All of that ends up in the joint sealant.
If you can see any of these, it’s time to have the joints looked at:
- Sealant that has lost its bond to the brick or render
- Failed sealant between panels on a façade
- Gaps where render, brick and frames meet
- Weeds or debris growing in open joints
Leith Hall, about 2 miles south-east, is one of the historic houses in the wider area around Gartly, and older homes nearby need a sealant that suits their walls.
Before booking anyone
- How much experience the applicator has
- How long the guarantee is
- What the quote includes, VAT included or not
- How the colour is chosen
External mastic in Gartly: local notes
Historic houses like Leith Hall (about 2 miles south-east) are a reminder that the area around Gartly has older buildings as well as new. In older buildings, older brick and stone need a sealant that suits them, at the right joint depth. Harled (roughcast) walls are common in Scotland, and joints where harling meets other materials need a sealant that can grip and flex.
Letting a property close to Huntly station? Then split movement joints are easy to miss on a rental until damp shows inside.
Gartly is about 17 miles north-west of Inverurie, in Aberdeenshire. Anywhere in AB54, we can carry out external mastic at your property. We cover 161 towns and villages across Aberdeenshire, from the larger towns to small villages. For nearby work, see our Aberdeen page, about 30 miles away.
Postcode districts we cover here for external mastic: AB54. You will find streets such as Old Military Road and Park Lane, and we cover them all. We also cover Backburn (1 mile north-east), Bridgend (2 miles north), Kennethmont (3 miles south-east), Rhynie (4 miles south-west) and Cottown (4 miles south). Larger places within reach include Alford (11 miles south), Insch (7 miles east) and Aberchirder (14 miles north-east). Remote and island addresses need a little more planning, so please mention your location when you send an email to info@mrmastic.co.uk.
What’s near Gartly
The closest station to Gartly is Huntly station, roughly 4.5 miles north. Well-known places in the area include Druminnor Castle (3.8 miles south) and Jubilee Hospital (4.4 miles north). Green spaces nearby include Kye Hill.
Leave it or put it right?
Sealing over the top of old mastic doesn’t hold for long. The new layer can’t bond properly to old, weathered material, so the old joint is cut out fully first. 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.
The cost depends on the size of the job, how much old material has to come out and how easy the joints are to reach. You’ll have a clear quote before any work starts, so you know where you stand.
What you get with us
- Quality sealants from Arbo and Everbuild
- More than 20 years in sealant work
- We agree the colour with you first
- We never seal over old sealant
Take a look at what affects the cost and customer reviews.
Gartly questions
Can you do external mastic in Gartly?
Yes. We work across all of Scotland, and Gartly is part of that. Just drop us a line at info@mrmastic.co.uk with a few details of the job, and we will give you a clear price.
Is Gartly within the area you cover?
Yes, Gartly is covered. We work across all of Scotland, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Does someone need to be in?
Access is agreed with you when the job is booked. Indoors, that generally means someone at home.
Do you do commercial work?
Yes. We’ve worked for hotels, offices and other businesses and we’re fully insured.
How long will you be here?
A typical job takes a few hours to a few days, depending on the length of joint and the access. Your quote will say how long we expect yours to take.
Will it make a mess?
Very little: the area around the joints is protected first, and we tidy up before we go.
Is there a guarantee?
Yes, always. Each job is guaranteed for twelve months, large or small.
What is a movement joint?
Walls move with heat, cold and moisture, and planned joints take up that movement. It’s closed with backing rod and a flexible sealant.
What affects the quote in Gartly
There’s no set price list, because no two jobs are the same. The quote depends on:
- Mould in or behind the old joints
- The old material and how stubborn it is
- How much there is to do
- Which sealant suits the joint
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether the work is at height. Your quote takes all of that into account.
What to tell us for a quote
Photos by email are helpful but not essential. Try to tell us:
- Access, such as stairs, a lift or height
- Roughly how big the job is
- A few photos by email, if you can
- The address or postcode of the job
There’s no standard price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To get started, drop us a line at info@mrmastic.co.uk.
Other services in Gartly
DIY sealant or a professional job?
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly, so just mention it when you contact us.
What happens on the day
We keep the work tidy and contained to the area we’re working on, so you can get on with your day. Expect the work to take a few hours for a handful of joints, longer for a whole elevation. Outdoor work around Gartly 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 walking round the building and agreeing the joints and the access.
- 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.
Preparing for the visit
- For business premises, tell us about site rules or sign-in
- Tell us about any previous sealing or DIY attempts
- Clear the area around the work
Getting a quote
Getting a quote is simple: let us know what needs doing and where. A few photos by email make the job easier to understand, and we will take it from there.