Perth and Kinross · Scotland
Rattray External Mastic
Professional external mastic in and around Rattray, with old sealant always removed completely.
- Movement joints with cracked, split or missing sealant
- Water getting into walls through failed joints
- Moss and dirt in joints with no sealant left
What happens on the day
We work through the job in order: 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 we leave things clean and tidy. Around Rattray, distance and access matter more than parking. Let us know how to find you and how to reach the joints.
- First, the joints are inspected and the access agreed.
- We cut out the old mastic and rake out anything in the joint.
- 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.
Getting ready for the visit
- Tell us about any water getting in
- Mention any sign-in or site rules at work premises
- Let us know about earlier repairs to the joints
How to get a quote
For a quick quote, get us on the phone, or email us if that is easier. Tell us about the joints that need doing and we’ll talk you through the work.
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About our external mastic in Rattray
External mastic is a job where short cuts show quickly. New sealant over old, joints packed with mortar and beads with no backing rarely last long. We strip the joint back and start again. We work on concrete & block, render & cladding joints and brickwork movement joints, and common reasons people get in touch are failed sealant between panels on a façade and weeds or debris growing in open joints.
Older stone buildings need a sealant that suits the stone, not an acetoxy product that can mark or attack it. On newer homes, the movement joints and roofline trims are what need watching.
The work is guaranteed for twelve months. If something is not right with it in that time, tell us and we will put it right.
- Where
- Rattray (PH10)
- Region
- Perth and Kinross
- Cover
- One year on every job
- Quote
- A clear price before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Why act early in Rattray
A properly done movement joint is an even line in a colour that suits the wall. A rushed bead with no backing looks untidy and does not last. Exposed walls in smaller Scottish places take a lot of wind and rain, and once water gets behind a failed joint, damp in stone or harled walls is slow to dry out.
We do not show prices on the website, because each job is priced on what it involves. For a quick quote, please drop us a line at info@mrmastic.co.uk and we will talk you through it.
Why choose Mr Mastic in Rattray
- Sanitary silicone with an anti-fungal additive in wet areas
- Tidy, careful work
- Fully insured
- Every job guaranteed for a year
Read what affects the cost or our reviews.
FAQs for Rattray
Is external mastic in Rattray guaranteed?
All our work, in Rattray and everywhere else, comes with a 12-month guarantee. We’re also fully insured and ARBOMaster approved.
Is Rattray in your area for external mastic?
Yes, Rattray is within the area we cover. Our work covers the whole of Scotland. Just drop us a line at info@mrmastic.co.uk with a few details of the job, and we’ll give you a clear price.
Why is there a gap in my brick wall?
Most straight vertical gaps in brickwork are movement joints. It lets the bricks expand without cracking, and it should be sealed with a flexible sealant.
Where are you based?
We’re based in Crawley, West Sussex, and we cover South East England, London and all of Scotland.
Can you seal over the old sealant?
No, it won’t last. 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.
When is the sealant fully cured?
Different products cure at different speeds, so follow the cure time we give you when we finish.
Can you seal joints between two different materials?
Yes. Different materials move at different rates, so a flexible sealant is needed where they meet. We choose one that suits both surfaces.
Do the sealants smell?
It depends on the product. Some smell for a while, some hardly at all, and any smell fades as they cure.
External mastic in Rattray: local notes
Plenty of Scottish homes have harled walls, and joints where harling meets other materials need a sealant that can grip and flex. 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.
If you look after a building such as Blairgowrie High School, larger buildings have long runs of movement joint that eventually need resealing.
Rattray is about 1 mile north-east of Blairgowrie and Rattray, in Perth and Kinross. Across the PH10 area, we cover external mastic for homes and businesses. Our area takes in 107 places across Perth and Kinross, large and small. We also work in Dundee, about 16 miles from Rattray.
All of PH10 is within our area for external mastic. External mastic is available to properties on New Road, Croft Lane and Haugh Road and the roads around them. Main roads around Rattray include the A926, which makes travel easy. We also cover Blairgowrie and Rattray (1 mile south-west), Carsie (2 miles south-west), Kinloch (2 miles west), Meikleour (4 miles south-west) and Coupar Angus (4 miles south-east). Within a short drive, we also cover Perth (14 miles south), Letham (14 miles south-west), Scone (12 miles south), Tulloch (13 miles south-west), Alyth (4 miles north-east) and Oakbank (15 miles south).
Around Rattray
Around Rattray, our work takes us to homes and buildings near The Ericht Ale House, among other places. Other landmarks nearby include Lethendy House (3.4 miles south-west) and Blairgowrie Community Hospital (0.7 miles south-west). Open spaces near Rattray include Hill of Alyth and Black Loch.
When it isn’t the sealant
Some problems need a builder, plumber or other trade rather than us:
- Cracked brickwork or render that needs a builder or plasterer
- Walls that need new movement joints cut into them
- Rising or penetrating damp from elsewhere in the wall
If you’re not sure, just send an email to info@mrmastic.co.uk and we will give you a straight answer.
Joints and surfaces we work on
- Copings & trims
- Façade panels
- Concrete & block
- Joints between brick and frames
- Brickwork movement joints
- Render & cladding joints
Places near Rattray
More services for Rattray
What affects the quote in Rattray
The quote reflects the job in front of us. We take into account:
- The old material and how stubborn it is
- The size of the job
- When we can work, for business premises
- Mould in or behind the old joints
Instead of a standard rate, we look at what your job involves: the amount of work, the old material and the access. You will know the price before we begin.
Helping us quote
There’s no need for technical detail. Just tell us:
- Whether it’s a home or a business
- Where the job is, and your postcode
- The rough size of the job
- The problem you’ve noticed
For external mastic in Rattray, drop us a line at info@mrmastic.co.uk. Tell us what the problem is and where, and we will agree the price before any work begins.
Different surfaces, different methods
Joints between dissimilar materials
Joints where frames, sills or panels meet the wall are common leak points. The old joint is removed and a sealant that bonds to both sides goes in.
Copings and trims
Joints in copings, parapets and trims are exposed to the worst of the weather. Each is resealed with a weatherproof, flexible sealant.
Common problems we fix in Rattray
Many joints fail because they were sealed too deep or with nothing behind them. Sealant bonded to three sides has nowhere to go and tears as soon as the joint widens.
Any of these means the joints need attention:
- Damp patches traced to an open external joint
- Joints where the bead has come unstuck
- Brick movement joints where the sealant has split
- Weathered mastic that no longer stretches
If you live in an older home near Parish Church, older walls, gutters and the joints where extensions meet them need a flexible sealant.
Comparing quotes
- What happens if they find a problem under the old sealant
- How much experience the applicator has
- Is the old sealant removed completely?
- How long to leave it before use
Should I try it myself first?
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
If you’re set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it does not work out, we can still put it right.