Perth and Kinross · Scotland
Dunning Sand Mastic
Specialist sand mastic for Dunning: careful preparation, the right product and tidy work. Ask us for a quick quote.
- Crumbling sand mastic round a window
- Cement or filler used on old window joints that has cracked
- Cracked mastic round a front door frame
Sand mastic in Dunning
On many period windows, sand mastic looks right and suits the building. On modern frames we’d normally use a flexible sealant, and we’ll talk through which suits your home. We work on timber door frames, period & listed homes and tenement windows, and people most often call us about silicone on a period window that looks wrong and gaps round a timber door in stone or brick.
Mastic can only go onto a dry joint, so outside work in Dunning depends on the weather. Tell us about access to all the windows and doors, upstairs included.
Big or small, you get the same 12-month guarantee in Dunning and across Perth and Kinross.
- Where
- Dunning (PH2)
- Region
- Perth and Kinross
- Guarantee
- A year, on every job
- Quote
- Quoted before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Common questions in Dunning
Is there a guarantee on sand mastic in Dunning?
All our work, in Dunning and everywhere else, comes with a 12-month guarantee. We’re fully insured, and an ARBOMaster approved applicator.
Can you do sand mastic in Dunning?
Yes. Our work covers the whole of Scotland, and Dunning is part of that. Just drop us a line at info@mrmastic.co.uk with a few details of the job, and we will give you a clear quote.
Is consent needed for window work on a listed home?
It’s best to ask your local planning authority first. Like-for-like sand mastic is often the preferred finish, but they decide.
Can you seal over the old sealant?
No. The old sealant always comes out first, so the new sealant bonds properly.
Can you do several jobs on one visit?
Of course. Doing several areas at once is generally more efficient, so mention them when you ask for a quote.
When will the new mastic be hard?
Not right away. The skin forms first, and the full set comes later and we will give you an idea for your job.
Will there be a smell?
Possibly a little. Any smell clears as the sealant cures.
How long will you be here?
Typically it takes a few hours for a single window, longer for several. Bigger jobs take longer, and we will tell you how long to expect.
What affects the quote in Dunning
You will get a clear quote before any work starts. It’s based on:
- The number of rooms or windows
- How much old sealant there is and how hard it is to remove
- The size of the job
- The product the joint needs
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you’re unsure, drop us a line at info@mrmastic.co.uk for an honest opinion and a quote.
What to tell us for a quote
What to tell us when you ask for a quote:
- Where the job is, and your postcode
- What the problem is, such as mould, gaps, leaks or cracking
- A few pictures by email, if you can
- How we’d reach the joints
There’s no standard price list. Instead, we give you a clear price for your job. To get started, email us at info@mrmastic.co.uk.
Aftercare tips
No joint lasts for ever, but care makes a real difference. A few tips:
- Have rotten timber repaired before new mastic goes in
- Go gently near the mastic when preparing windows
- Clear gutters so water does not pour onto the windows
- Sort the mastic before the decorators arrive
When preparing windows for paint, take care around the mastic. It can be damaged by heavy scraping.
Renewing mastic before redecorating saves doing it twice. Painting over failed mastic hides the problem for a while.
Other services in Dunning
Landlords, agents and businesses in Dunning
Whether it’s one flat or a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.
What sealant work can’t fix
Honest advice matters more to us than a booking, so here’s what sealant can’t fix:
- Sash cords, weights and draught-proofing of the sashes
- Decayed frames that need repair
- Planning or listed building consent (your local planning authority decides)
Not sure which it is? You can send an email to info@mrmastic.co.uk and we will tell you honestly.
Surfaces we seal
- Tenement windows
- Stone surrounds
- Brick reveals
- Period & listed homes
- Timber door frames
- Sash and case windows
What happens on the day
We bring everything the job needs with us, so you don’t need to buy or prepare anything. Once we’ve agreed what’s being done, we protect the area and start. It normally takes anything from a few hours to a full day, depending on how many windows. In smaller Scottish places, parking is generally less of an issue than access and distance. Let us know how to find you and how to reach the joints, and the visit is planned around that.
- First we agree which joints need doing.
- We remove the old, loose mastic.
- Deep gaps are packed so the mastic sits at the right depth.
- We apply the mastic by hand and shape it.
- We dress the finish so it sits neatly against the masonry.
Before we arrive
- Try not to wet indoor joints just before the visit
- Let us know about earlier repairs to the joints
- Tell us about any water getting in
Ask for a quote
For a quote, drop us a line at info@mrmastic.co.uk with the location and a short description of the problem. We will give you a clear price before any work starts.
Related advice
Why it’s worth doing now in Dunning
A silicone bead can be quicker, but on period stone or brick it often looks out of place. Sand mastic is the traditional material and finishes neatly against the masonry. In an older home around Dunning, damp from a failed joint can get into timber and plaster.
A few things move the cost up or down: the old material and how easily it comes out, any mould to treat, and whether the work is at height. Your quote takes all of that into account.
Why book with us
- A 12-month guarantee on all work
- More than 20 years in sealant work
- Trusted Arbo and Everbuild sealants
- We never seal over old sealant
DIY versus a professional finish
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions.
Dunning homes and the weather
Many older homes in Scotland have sash and case windows, often pointed into the wall with traditional sand mastic. Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and sound outside sealant is part of that.
Homes close to St Serf's Church include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. Around Dunning, as everywhere, sand mastic is only as good as the preparation behind it.
Dunning is about 8 miles south-west of Perth, in Perth and Kinross. Across the PH2 area, we can carry out sand mastic at your property. Our area takes in 107 places across Perth and Kinross. Dundee is on our list too, about 26 miles from Dunning.
Jobs for sand mastic in PH2 is quoted and booked the same way as anywhere else. If you need sand mastic at a property on Kirkstyle Square, Thorntree Square and Station Road or a nearby road, we can help. If you’re just outside Dunning, we cover Aberuthven (3 miles west), Auchterarder (5 miles west), Forgandenny (5 miles north-east), Milltown of Aberdalgie (5 miles north-east) and Balgowan (5 miles north). Further out, we also cover Perth (8 miles north-east), Crieff (11 miles north-west), Kinross (9 miles south-east), Letham (7 miles north-east), Scone (10 miles north-east) and Tulloch (8 miles north-east).
What’s near Dunning
Other landmarks nearby include St Margaret's Hospital (5.3 miles west) and Keltie Castle (1.1 miles south-west). Not far away are Dupplin Lake and Innerdouny Hill.