Perth and Kinross · Scotland
External & façade joints in Dowally, Perth and Kinross
Professional external mastic in and around Dowally, with old sealant always removed completely and a 12-month guarantee.
- Gaps where render, brick and frames meet
- Leaking joints around cladding and façade panels
- Joints pointed up with cement by mistake
External mastic for homes and businesses in Dowally
Ground-floor and low-level joints are straightforward to reach. Where joints are higher up, tell us about the building when you get in touch and we’ll confirm what’s needed to reach them safely. We work on façade panels, joints between brick and frames and concrete & block, and common reasons people get in touch are weeds or debris growing in open joints and joints with sealant missing in places.
External sealant needs dry surfaces, so outdoor work around Dowally is planned around the weather, and longer journeys are planned in advance. Let us know about access to every wall and roofline.
Whatever the size of the job, it’s backed by our one-year guarantee in Dowally and across Perth and Kinross.
- Where
- Dowally (PH9)
- Region
- Perth and Kinross
- Guarantee
- One year on every job
- Quote
- Quoted before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
When to call us in Dowally
Joints sealed without backing rod, or far too deep, rarely last. Sealant bonded to three sides has nowhere to go and rips as the joint opens.
These are the problems we’re asked about most:
- Cracked joints where brick meets render or frames
- Rigid filler in a joint that should flex
- Weathered mastic that no longer stretches
- Weeds or debris growing in open joints
Homes close to St Anne's Church and Churchyard include some older properties, and old and new materials meet at the roofline and walls, which is where sealant earns its keep.
Comparing quotes
- How the surfaces are prepared before sealing
- What product goes in the joint
- How hidden problems are handled
- How long the guarantee is
Can I do it myself?
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
Places near Dowally
More services for Dowally
What affects the quote in Dowally
Jobs vary more than people expect. What affects the quote:
- How many rooms, windows or areas are involved
- Whether old sealant or filler has to be cut out
- The number and length of the joints
- Working hours on commercial sites
We don’t 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’ll talk you through it.
What to tell us for a quote
You do not need to know the technical terms. It helps if you can tell us:
- Whether it has been sealed before
- How many joints, rooms or windows are involved
- The type of property
- Where the property is
We quote each job on its own, so start by telling us what you need. Simply drop us a line at info@mrmastic.co.uk and describe the job and send pictures if you have them.
Landlords, agents and businesses in Dowally
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements.
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance that we can handle for you.
When something else is needed
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
- Render that’s blown, hollow or coming away
- Movement that is more than a sealant joint can take
If you are not sure, just send an email to info@mrmastic.co.uk and we’ll give you a straight answer before you book.
Surfaces we seal
- Render & cladding joints
- Concrete & block
- Façade panels
- Copings & trims
- Joints between brick and frames
- Brickwork movement joints
The process
A visit follows a simple pattern: we check the joints, protect the area around them, do the work and tidy away. Most jobs take anything from a few hours to several days, depending on the building. Somewhere like Dowally may be a longer drive, and the journey is planned ahead. Mention tracks, gates, ferries or anything else about the route.
- First we look over the joints with you, agree which to renew and talk through access.
- Old sealant and any debris are cut and raked out.
- The joint faces are cleaned and primed where the sealant needs it.
- Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
Preparing for the visit
- Tell us about any previous sealing or DIY attempts
- Let us know if you’ve seen damp or leaks
- Mention any parking rules near the property
Get a quote
If you’re in Dowally and need external mastic, send an email to info@mrmastic.co.uk. A short description of the job and where it is helps us quote, and you will get a clear quote before work begins.
Read more
Common questions in Dowally
Do you cover Dowally for external mastic?
Yes, Dowally 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.
Will you come out to Dowally?
Yes, we do. Our work covers the whole of Scotland, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
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.
Can you seal joints between render and window frames?
Yes. Materials like render, brick, metal and uPVC all move differently, so a flexible sealant is needed where they meet. The sealant is matched to both sides.
How long does external mastic take?
A typical job takes anything from a few hours to several days, depending on the building. We will confirm how long when we quote.
Can tenants book the work?
Of course. Check with your landlord; we can send the quote to them too.
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.
Do you remove the old sealant?
Yes. Sealing over old sealant is the main reason resealing fails early, and it’s something we never do.
External mastic in Dowally: local notes
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. Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and failed outside joints work against that.
Rented homes near Dunkeld & Birnam station change hands often, and split movement joints are easy to miss on a rental until damp shows inside.
Dowally is about 11 miles west of Blairgowrie and Rattray, in Perth and Kinross. Our applicators cover external mastic for homes and businesses in Dowally and the surrounding area. Dowally is one of 107 places in Perth and Kinross where we work for external mastic. We also work in Dundee, around 27 miles away.
Here we cover the PH9 postcode area for external mastic. Close by, we work in Inchmagrannachan (2 miles south), Logierait (3 miles north-west), Ballinluig (3 miles north-west), Dunkeld (4 miles south-east) and Little Dunkeld (4 miles south-east). We also work in nearby towns such as Blairgowrie and Rattray (11 miles east), Pitlochry (7 miles north-west), Tulloch (15 miles south-east), Alyth (15 miles east), Coupar Angus (14 miles east) and Rattray (11 miles east).
What’s near Dowally
The closest station to Dowally is Dunkeld & Birnam station, about 4.4 miles south-east of the centre. Other landmarks nearby include Tom na Croiche (3.1 miles north-west) and Scottish Horse Regimental Museum (3.7 miles south-east). Not far away are Dowally Loch.
What the job involves on each surface
Cladding and façade panels
Cladding and façade panels are normally separated by sealed joints. Each joint gets a sealant that suits the panel and its movement.
Copings and trims
Coping and trim joints face rain and sun head on. Each is resealed with a weatherproof, flexible sealant.