Perth and Kinross · Scotland
Madderty External Mastic
Sealing brickwork movement joints, render, cladding and façade joints for householders, landlords and businesses in Madderty. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Rain getting behind render or cladding at a joint
- Weeds or debris growing in open joints
- Cracked joints where brick meets render or frames
How we handle external mastic in Madderty
On houses, flats and commercial buildings across Madderty, we reseal joints in brickwork, render, cladding and façade panels. Every joint gets the same careful preparation: clean joint faces and the right depth. We work on copings & trims, concrete & block and façade panels, and common reasons people get in touch are water getting into walls through failed joints and cracked joints where brick meets render or frames.
Outside joints can only be sealed when they’re dry, so work in Madderty depends on the weather, and longer journeys are planned in advance. Let us know about access to every wall and roofline.
Our work is backed for twelve months, and the guarantee is the same wherever you are.
- Where
- Madderty (PH7)
- Wider area
- Perth and Kinross
- Cover
- A year, on every job
- Quotes
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Madderty questions
Is Madderty within the area you cover?
Yes. Madderty is within the area we cover, which takes in towns, villages and rural addresses. We work across all of Scotland. Let us know about access, parking and anything unusual about getting there when you book.
Is there a guarantee on external mastic in Madderty?
All our work, in Madderty and everywhere else, comes with a 12-month guarantee. We are also fully insured and ARBOMaster approved.
Can a movement joint be filled with mortar?
No. Cement or mortar cannot stretch. Where a joint has been mortared, it can often be raked out and sealed properly.
Should I try DIY first?
That depends on the joint. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional.
Do you have insurance?
Yes. Full insurance covers our work, and we can confirm the details when we quote.
Will the old sealant be removed?
Yes, every time. New silicone doesn’t stick to old silicone, so the joint is cleaned back first.
Can you seal joints between render and window frames?
Yes. Different materials move at different rates, so a flexible sealant is needed where they meet. We choose one that suits both surfaces.
What is a movement joint?
A movement joint is a planned break in the wall that absorbs expansion and shrinkage. It’s sealed with a flexible sealant, not mortar.
Work for landlords, hotels and businesses
Housing providers, facilities teams and property managers book us too in Madderty and across Perth and Kinross. We can quote a run of properties together, and we are fully insured for the work.
Landlords and letting agents in Madderty can book us as well as homeowners. Resealing between tenancies keeps a property looking cared for.
DIY sealant or a professional job?
If you’re set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it doesn’t work out, we can still put it right.
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
Common problems we fix in Madderty
Some movement joints have been pointed up with mortar by mistake. The joint cannot move, so the wall cracks somewhere else instead.
It’s worth asking for a quote if you see:
- Joints pointed up with cement by mistake
- Sealant that has lost its bond to the brick or render
- Failed seals between different materials
- Panel joints letting water in
For jobs in and around Madderty, choosing the right material for each joint is as important as a tidy finish.
What to look for in a quote
- How much experience the applicator has
- Whether the sealant suits the joint
- Are they insured?
- When the joint can take water or movement
Why it’s worth doing now in Madderty
Running new sealant over the old bead rarely lasts. New sealant does not bond well to old, weathered sealant, so we always take the old sealant out. When the nearest tradesperson is a drive away, it’s tempting to leave a small leak, but water behind a failed seal does the most damage when nobody’s watching.
Instead of a standard rate, we look at what your job involves: the amount of work, the old material and the access. You’ll know the price before we begin.
What you get with us
- Neat joints and a tidy finish
- More than 20 years in sealant work
- A choice of colours where the product allows
- Fully insured
Take a look at what affects the cost and customer reviews.
What happens on the day
Every visit runs the same way: we look at the joints together, protect the area around them, carry out the job and clear up. Most jobs take anything from a few hours to several days, depending on the building. Outside jobs in Madderty need a dry day, because sealant will not bond to a wet joint, so external jobs may need to move if the day turns wet. Indoor work goes ahead whatever the weather.
- We look at every joint and agree a colour to suit the wall.
- We take out the old sealant until the faces are sound.
- Backing rod goes in so the sealant can stretch between the two faces.
- Primer is applied wherever the sealant needs it.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
How to prepare
- Let us know if you’ve seen damp or leaks
- On commercial sites, let us know about site rules
- Let us know about earlier repairs to the joints
Ask for a quote
Asking for a quote is easy: let us know the job and the location, and roughly how big it is. Photos by email help us understand the job, and we’ll come back to you with a quote.
Advice
Also near Madderty
Also in Madderty
What we can’t put right
In fairness, some problems need a different trade:
- Render that is blown, hollow or coming away
- Cracking across the wall rather than at a joint
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
If in doubt, drop us a line at info@mrmastic.co.uk and we’ll say what we think before booking.
Joints and surfaces we work on
- Façade panels
- Render & cladding joints
- Concrete & block
- Joints between brick and frames
- Copings & trims
- Brickwork movement joints
Walls and rooflines in Madderty
Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and failed outside joints work against that. Harled (roughcast) walls are common in Scotland, and joints where harling meets other materials need a sealant that can grip and flex.
Around Madderty, as everywhere, external mastic is only as good as the preparation behind it.
Madderty is about 5 miles north of Auchterarder, in Perth and Kinross. If you need external mastic in Madderty, please send an email to info@mrmastic.co.uk for a quick quote. We are based in Crawley and cover Perth and Kinross, Madderty included. Across Perth and Kinross, we cover 107 places, Madderty among them. Dundee is on our list too, about 29 miles from Madderty.
Postcode districts we cover here for external mastic: PH7. Close by, we work in St David's (1 mile south-west), Balgowan (3 miles north-east), Aberuthven (4 miles south-east), Gilmerton (4 miles north-west) and Tullibardine (5 miles south). Further out, we also cover Perth (10 miles east), Crieff (5 miles west), Kinross (15 miles south-east), Letham (9 miles east), Scone (12 miles east) and Tulloch (9 miles east).
Around Madderty
Nearby you will also find St Margaret's Hospital (5.1 miles south) and Strathallan Castle (3.8 miles south-west).
How the job changes by surface
Joints between dissimilar materials
Where a frame or panel meets masonry, water often finds a way in. We cut out the old sealant and reseal with a product suited to both surfaces.
Cladding and façade panels
Panel systems often rely on sealant between and around the panels. Each joint gets a sealant that suits the panel and its movement.