Perth and Kinross · Scotland
Grandtully External Mastic
Sealing brickwork movement joints, render, cladding and façade joints for householders, landlords and businesses in Grandtully. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Brick movement joints where the sealant has split
- Leaking joints around cladding and façade panels
- Joints pointed up with cement by mistake
About our external mastic in Grandtully
As ARBOMaster approved applicators, we choose exterior sealants to suit the joint and the surfaces. Some surfaces need a primer before sealing and we use one wherever it does. Common call-outs are for rigid filler in a joint that should flex and failed seals between different materials, across copings & trims, façade panels and concrete & block.
External sealant needs dry surfaces, so outdoor work around Grandtully is planned around the weather. Let us know about access to every wall and roofline.
The work is covered for a year after we finish. If there’s a problem with it, please drop us a line at info@mrmastic.co.uk.
- Place
- Grandtully (PH15, PH9)
- Wider area
- Perth and Kinross
- Guarantee
- A year, on every job
- Price
- A clear quote up front
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
For landlords and businesses
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
If you manage several properties in or around Grandtully, several properties can go on one quote. Just tell us the addresses and what each one needs, and pictures by email help.
When to call us in Grandtully
Joints sealed without backing rod, or far too deep, rarely last. If the sealant sticks to the back as well as the sides, it can’t stretch and tears as soon as the joint widens.
Look out for any of the following:
- Leaking joints around cladding and façade panels
- Joints with sealant missing in places
- Joints where the bead has come unstuck
- Hard, crazed mastic that has stopped moving
In the older streets around Strathtay Parish Church, older walls, gutters and the joints where extensions meet them need a flexible sealant.
What to look for in a quote
- When the joint can take water or movement
- Who does the work, and how experienced they are
- What guarantee comes with the work
- What the quote includes, VAT included or not
What happens on the day
We bring everything the job needs with us, so you don’t need to buy or prepare anything. After a quick look at the joints together, the area is protected and the work begins. Most jobs take a few hours for a handful of joints, longer for a whole elevation. Somewhere like Grandtully may be a longer drive, and the journey is planned ahead. Tell us about tracks, gates, a ferry crossing or anything unusual about getting there.
- First we look over the joints with you, agree which to renew and talk through access.
- We cut out the failed sealant and rake out any dirt or growth.
- The joint faces are cleaned and primed where the sealant needs it.
- Closed-cell backing rod is fitted to set the depth and stop three-sided bonding.
- We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.
Getting ready for the visit
- Mention if the joints have been sealed before
- Tell us about access, such as stairs, a lift or high-level joints
- Let us know if you’ve seen damp or leaks
Get a quote
For external mastic in Grandtully, send an email to info@mrmastic.co.uk. Tell us what the problem is and where, and we’ll agree the price before any work begins.
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What sealant work cannot fix
To be straight with you, some problems need a different trade:
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
- Walls that need new movement joints cut into them
- Cracking across the wall rather than at a joint
If you’re not sure, just drop us a line at info@mrmastic.co.uk and we will give you a straight answer.
Where we work in Grandtully
- Brickwork movement joints
- Render & cladding joints
- Copings & trims
- Concrete & block
- Façade panels
- Joints between brick and frames
How to look after the new joints
Looking after new joints is easy:
- Tell anyone working on the walls about the movement joints
- Have failed joints looked at early
- Make sure movement joints aren’t pointed over
- Leave the joints unpainted unless we’ve said otherwise
Keep pressure washers away from the sealant. High-pressure water can lift the edges.
Leave a failed movement joint and water keeps getting into the wall. Over time it can mean damp inside, stained render or frost-damaged brick.
Your questions about external mastic in Grandtully
Do you cover smaller places like Grandtully?
Yes, we do. We work across all of Scotland, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Do you work for landlords with property near Pitlochry station?
Yes, landlords and agents are among the people we work for. Just send an email to info@mrmastic.co.uk with the address and what needs doing, and we’ll give you a clear price.
Can new sealant go over the old?
No. Fresh sealant does not stick to old sealant, and it traps any mould or water underneath. It all has to come out first.
Do you work for hotels and businesses?
Yes. Commercial and hotel work is a large part of what we do. Working times can be discussed when we quote.
Why is there a gap in my brick wall?
It’s a deliberate gap that lets the wall expand and contract without cracking. It should be filled with flexible sealant, never mortar.
Do you have insurance?
Yes, we’re fully insured for every job we do.
Will the old sealant be removed?
Always. Sealing over old sealant is the main reason resealing fails early, so we never do it.
Is the work guaranteed?
Yes, for a year. If there’s a problem with our work in that time, tell us and we will put it right.
Grandtully buildings and the weather
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 failed outside joints work against that.
Letting a property close to Pitlochry station? Then failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Grandtully is about 17 miles west of Blairgowrie and Rattray, in Perth and Kinross. Jobs in Grandtully get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Grandtully is one of 107 places in Perth and Kinross where we work. Dundee is on our list too, about 33 miles from Grandtully.
We cover every part of PH15 and PH9 for external mastic and the streets around it. Whether your property is on The Paddock and Lageonan Road or anywhere close by, we can help. If you’re just outside Grandtully, we cover Little Ballinluig (1 mile south-west), Port na Craig (3 miles north-east), Logierait (4 miles east), Pitlochry (4 miles north-east) and Ballinluig (4 miles east).
Local landmarks in Grandtully
For rail, the closest station is Pitlochry station, about 3.4 miles north-east. Other landmarks nearby include Pitlochry Community Hospital (3.4 miles north-east) and Tom na Croiche (3.8 miles east). Green spaces nearby include Loch na Bà.
What affects the quote in Grandtully
The price is agreed before any work begins. It’s based on:
- Which sealant suits the joint
- Access and height
- The number and length of the joints
- Whether old sealant or filler has to be cut out
There are no prices on our website, because each job is priced on what it involves. Call for a quick quote.
What we need to know
You don’t need to know the technical terms. Just tell us:
- Any previous sealing or DIY work
- The address or postcode of the job
- The type of property
- The rough size of the job
Call for a quick quote, or email us if that’s easier. Describe what needs sealing and we’ll explain what’s involved.
What happens if it’s left?
Low-modulus sealants stretch easily, so they put less strain on the joint edges. That matters on brick, render and concrete, which can be weaker at the face. A stiffer product can damage the joint edge as it fails. When the nearest tradesperson is a drive away, it’s tempting to leave a small leak, but water through a failed joint keeps working away until it’s fixed.
A failed joint rarely gets cheaper to fix by waiting. If you’re unsure, drop us a line at info@mrmastic.co.uk for an honest opinion and a quote.
Why Grandtully customers choose us
- Homes, businesses and hotels
- Sanitary silicone with an anti-fungal additive in wet areas
- 12-month guarantee on every job
- We’re fully insured