Perth and Kinross · Scotland
Duncrievie External Mastic
Sealing brickwork movement joints, render, cladding and façade joints for homes and businesses in Duncrievie and across Perth and Kinross. Fully insured, ARBOMaster approved and guaranteed for a year.
- Sealant pulling away from one side of the joint
- Water getting into walls through failed joints
- Weeds or debris growing in open joints
Leave it or put it right?
A low-modulus sealant is chosen because it moves without pulling hard at the edges. That matters on brick, render and concrete, which can be weaker at the face. Too stiff a sealant can pull at the edges and break them. Around Duncrievie, water from a failed joint in an older stone home can soak into timber and plaster, which is a far bigger job than the sealant.
Rather than a set price list, we look at what your job involves: how many joints, what’s in them now and how we reach them. You will know the price before we begin.
Why book with us
- Colour picked to suit the job
- 20+ years of sealant experience
- We never seal over old sealant
- Fully insured
External mastic in Duncrievie
Low-level joints can usually be done from the ground. For joints higher up, give us some details of the building and we’ll confirm what access is needed. If you have sealant that has lost its bond to the brick or render and rain getting behind render or cladding at a joint, we can help.
Outside joints can only be sealed when they’re dry, so work in Duncrievie depends on the weather, and longer journeys are planned in advance. Let us know about access to every wall and roofline.
We stand behind the work with a 12-month guarantee.
- Location
- Duncrievie (PH2)
- Wider area
- Perth and Kinross
- Cover
- 12 months on all our work
- Quotes
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
What affects the cost of external mastic
Some jobs are bigger than they look, and some smaller. The main factors:
- The type of sealant required
- Access and height
- The number and length of the joints
- The number of rooms or windows
A few things move the cost up or down: how much old sealant there is and how stubborn it is, any mould to treat, and whether the work is at height. We take all of that into account in your quote.
Asking for a quote
Photos help, but a description is a good start. Please mention:
- What the problem is, such as mould, gaps, leaks or cracking
- The type of property
- A few pictures by email, if you can
- Whether it has been sealed before
If you are in Duncrievie and need external mastic, send an email to info@mrmastic.co.uk. Tell us what the problem is and where, and you will get a clear quote before we start.
How the visit works
We keep the work tidy and contained to the joints we’re treating, so you can carry on as normal. Expect the work to take anything from a few hours to several days, depending on the building. Outside jobs in Duncrievie need a dry day, because sealant won’t bond to a wet joint, so an outdoor job can move if the forecast changes. Work indoors isn’t affected.
- Each joint is checked and the colour of the new sealant agreed.
- Failed sealant is removed back to clean, sound faces.
- Backing rod goes in so the sealant can stretch between the two faces.
- We prime the faces where required.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
Preparing for the visit
- Tell us about access, such as stairs, a lift or high-level joints
- Try not to wet indoor joints just before the visit
- Tell us about any water getting in
Ask for a quote
Every job is quoted individually. Just send an email to info@mrmastic.co.uk with the details and send pictures if you have them.
Advice
Questions from Duncrievie
Will you come out to Duncrievie?
Yes, we do. We work across all of Scotland, and smaller places are part of that. Longer journeys are simply planned in advance.
Do you cover Duncrievie for external mastic?
Yes. We work across all of Scotland, and Duncrievie is part of that. Just email us at info@mrmastic.co.uk with a few details of the job, and we’ll give you a clear price.
Is it worth trying it myself?
It depends on the job. High-level, external movement and fire-rated joints are professional jobs.
What do you need from me for a quote?
Where the job is, what the problem is and roughly how big it is. Photos by email help too.
Are you an approved applicator?
Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.
What do you put in the joint?
Products from Arbo and Everbuild, among others, chosen to suit the joint. We explain the product when we quote.
How do you reach high-level joints?
It depends on the building. Send us photos and a rough idea of the height, and we’ll confirm what access is needed.
Do the sealants smell?
Sometimes, a little. Any smell clears as the sealant cures, and ventilation helps.
Towns and villages near Duncrievie
What else we do in Duncrievie
Work for landlords, hotels and businesses
Housing providers, facilities teams and property managers book us too in Duncrievie and across Perth and Kinross. We can quote a run of properties together, and we are fully insured for the work.
For anyone letting property in or around Duncrievie, jobs at different addresses can go on one quote. Just tell us the addresses and what each one needs, and photos by email help.
Surface by surface
Cladding and façade panels
Cladding and façade panels are usually separated by sealed joints. We reseal them with a sealant suited to the panel material.
Concrete and blockwork
Concrete and block walls shrink as they dry and move with temperature. Their movement joints are sealed over backing rod with a flexible sealant.
Do you need external mastic in Duncrievie?
If plants are growing out of a joint, the sealant has normally failed or was never there. Dirt and roots then trap moisture in the joint and make things worse.
Look out for these signs:
- Weeds or debris growing in open joints
- Sealant pulling away from one side of the joint
- Old sealant gone brittle and cracked
- Rigid filler in a joint that should flex
In the older streets around Arngask Church, old and new materials meet at the roofline and walls, which is where sealant earns its keep.
What to look for in a quote
- The length of the guarantee
- What happens if they find a problem under the old sealant
- What the quote includes, VAT included or not
- What preparation is included
How to look after the new joints
Simple care keeps the joints in good condition. Our advice:
- Point out the joints to other trades
- Look over the joints every year, ideally after winter
- Keep high-pressure jets off the joints
- Never let anyone fill a movement joint with mortar
Have a quick look at the joints each spring. Splits, gaps at the edges or plants in the joint are early warning signs.
Gaps, plants or missing sealant in a joint are worth getting looked at. Earlier resealing means a smaller job and a better result.
Walls and rooflines in Duncrievie
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 where harling meets frames, pipes and other materials, the joint needs a flexible sealant that grips a rough surface.
In and around Duncrievie, as anywhere, good external mastic starts with a clean, dry, properly prepared joint.
Duncrievie is about 9 miles south of Perth, in Perth and Kinross. From the centre of Duncrievie to the outskirts, external mastic is available for homes and businesses alike. Our Perth and Kinross coverage runs to 107 places, Duncrievie among them. You can also see our page for Dundee, roughly 21 miles from Duncrievie.
All of PH2 is covered for external mastic, from the main roads to the quietest streets. If you are just outside Duncrievie, we cover Glenfarg (1 mile north), Gateside (3 miles east), Milnathort (3 miles south), Glenlomond (3 miles south-east) and Wester Balgedie (4 miles south-east). Larger places within reach include Perth (9 miles north), Auchterarder (12 miles west), Letham (10 miles north), Scone (10 miles north), Tulloch (10 miles north) and Oakbank (9 miles north).
Landmarks near Duncrievie
Typical jobs here are in homes near Arngask Library, among other places. Nearby you will also find Balvaird Castle (2.5 miles north-east) and Bridge of Earn Hospital (5.3 miles north). Open spaces near Duncrievie include Loch Leven National Nature Reserve and West Lomond.