Perth and Kinross · Scotland
Markethill External Mastic
Specialist external mastic for Markethill: careful preparation, the right product and tidy work. Call for a quick quote.
- Hard, crazed mastic that has stopped moving
- Sealant pulling away from one side of the joint
- Panel joints letting water in
External mastic for homes and businesses in Markethill
Short cuts in external joints show up within a season or two. Overfilled joints, missing backing rod and sealant laid over old sealant rarely last long. We strip the joint back and start again. Typical jobs include plants rooting in failed movement joints and rigid filler in a joint that should flex, across joints between brick and frames, concrete & block and render & cladding joints.
In and around a place like Markethill, many buildings face open ground and take the full weather. Gutter joints and wall joints take a battering, so they need a sealant that moves with the building.
Our work is backed for twelve months, and the guarantee is the same wherever you are.
- Where
- Markethill (PH13)
- Wider area
- Perth and Kinross
- Guarantee
- 12 months on all our work
- Quote
- A clear price before work begins
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
How we quote for external mastic
We do not publish a price list, because no two jobs are the same. What we look at:
- The number of rooms or windows
- How much old sealant there is and how hard it is to remove
- When we can work, for business premises
- How much there is to do
Instead of a standard rate, we look at what your job involves: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
What we need to know
To help us quote quickly, let us know:
- The address or postcode of the job
- The rough size of the job
- Photos by email, if that is easy
- If it’s domestic, commercial or a hotel
For external mastic in Markethill, drop us a line at info@mrmastic.co.uk. A short description of the job and where it is helps us quote, and you’ll get a clear quote before any work starts.
Why deal with it now?
Running new sealant over the old bead rarely lasts. The new layer can’t bond properly to old, weathered material, so we always take the old sealant out. In an older home around Markethill, damp from a failed joint can get into timber and plaster.
The cost depends on the size of the job, how hard the old material is to remove and how easy the joints are to reach. We give a clear quote before work begins.
What you get with us
- We never seal over old sealant
- Fully insured
- White, clear, grey or coloured to suit, where the product allows
- More than 20 years in sealant work
Read how sealant jobs are priced or our reviews.
When to call us in Markethill
If plants are growing out of a joint, the sealant has generally failed or was never there. Dirt and roots then trap moisture in the joint.
Look out for any of the following:
- Gaps where render, brick and frames meet
- Sealant pulling away from one side of the joint
- Old sealant gone brittle and cracked
- Moss and dirt in joints with no sealant left
Around Markethill, as everywhere, external mastic is only as good as the preparation behind it.
What to look for in a quote
- What the cure time is
- Whether all the old sealant comes out first
- Which sealant they’ll use, and why
- How much experience the applicator has
Towns and villages near Markethill
What else we do in Markethill
What sealant work cannot fix
We won’t take on work that won’t last, so these are the limits:
- Damp that isn’t coming from the joint
- Structural movement, which needs a surveyor or engineer
- Loose or hollow render, which needs re-rendering
Not sure which it is? You can send an email to info@mrmastic.co.uk and we’ll tell you honestly before booking.
Where we work in Markethill
- Joints between brick and frames
- Copings & trims
- Render & cladding joints
- Façade panels
- Brickwork movement joints
- Concrete & block
Keeping the joints in good condition
Looking after new joints is easy, and it makes a real difference:
- Act on the first splits you see
- Keep movement joints as flexible joints, not mortar
- Tell anyone working on the walls about the movement joints
- Deal with leaking gutters that soak the joints below
Don’t paint over the new sealant unless we’ve said the product is paintable. Paint can crack on a flexible joint.
Act while the splits are small. At that stage it’s a simple cut out and reseal with no damage behind it to deal with.
FAQs for Markethill
Is there a guarantee on external mastic in Markethill?
All our work, in Markethill and everywhere else, comes with a 12-month guarantee. We’re fully insured, and an ARBOMaster approved applicator.
Do you cover Markethill for external mastic?
Yes. Our work covers the whole of Scotland, and Markethill is part of that. You can email us at info@mrmastic.co.uk and tell us what needs doing, and we’ll give you a clear price.
How long does external mastic last?
That varies with the weather the wall faces, how much it moves and the sealant used. Sealant is a maintenance item, so check the joints once a year.
Can you match the colour of my brickwork?
We aim for a joint that suits the wall rather than one that jumps out. We will talk through colour options before work begins from the range available.
Why do you put foam in the joint first?
The foam is closed-cell backing rod. It stops the sealant going in too deep and bonding to three sides.
Where is Mr Mastic based?
Mr Mastic is based in Crawley. Our applicators cover Markethill.
Do you hold any approvals?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.
Will the old sealant be removed?
Yes. We cut out all the old sealant and clean the joint before resealing.
How it works
At the end, we look at the finished work together and explain the cure time. The work normally takes anything from a few hours to several days, depending on the building, depending on the amount of work. Somewhere like Markethill 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.
- We inspect the joints and agree which need resealing and how they’ll be reached.
- The old mastic and anything lodged in the joint is removed.
- Both sides are cleaned back to sound material and primed if needed.
- 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.
Getting ready for the visit
- On commercial sites, let us know about site rules
- Try not to wet indoor joints just before the visit
- Tell us about access, such as stairs, a lift or high-level joints
Ask for a quote
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and email pictures if that’s easy.
Related advice
Landlord and commercial work in Markethill
For anyone letting property in or around Markethill, several properties can go on one quote. Just tell us the addresses and what each one needs.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. Several properties can be quoted together.
Markethill buildings and the weather
Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and sound outside sealant is part of that. Plenty of Scottish homes have harled walls, and where harling meets frames, pipes and other materials, the joint needs a flexible sealant that grips a rough surface.
For an older house near a landmark such as Abbey Church, an extension built onto an older house moves differently, and the joint between them takes the strain.
Markethill is about 5 miles south-east of Blairgowrie and Rattray, in Perth and Kinross. For external mastic in and around Markethill, it’s easy to get a quote: please send an email to info@mrmastic.co.uk. We’re based in Crawley and cover Perth and Kinross. Markethill is one of 107 towns and villages in Perth and Kinross we cover for external mastic. You can also see our page for Dundee, roughly 12 miles from Markethill.
We work across the PH13 postcode area for external mastic. If you’re just outside Markethill, we cover Coupar Angus (1 mile north-west), Woodside (2 miles south-west), Burrelton (2 miles south-west), Ardler (3 miles north-east) and Carsie (4 miles north-west). Larger places within reach include Perth (12 miles south-west), Blairgowrie and Rattray (5 miles north-west), Letham (13 miles south-west), Scone (10 miles south-west), Tulloch (12 miles south-west) and Alyth (6 miles north).
Local landmarks in Markethill
A little further out are Kinclaven Castle (4.4 miles west) and Blairgowrie Community Hospital (4.6 miles north-west). The countryside around Markethill includes Northballo Hill and Monk Myre.