Perth and Kinross · Scotland
Muthill Sand Mastic
Professional sand mastic in and around Muthill, with old sealant always removed completely and a 12-month guarantee.
- Old sand mastic that has cracked, crumbled or fallen out
- Open joints round the window box
- Modern sealant on a period surround
Landlords, agents and businesses in Muthill
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. Several properties can go on one quote.
For anyone letting property in or around Muthill, jobs at different addresses can go on one quote. Send us the addresses and the work at each.
Sand mastic in Muthill, done properly
Across Muthill, we renew sand mastic around sash and case windows. Every joint is cleaned out and filled by hand, finished to suit the masonry. If you’re dealing with mastic that needs renewing before redecorating and crumbling sand mastic round a window, we can help.
Many older Scottish homes still have timber windows set into stone walls. Those suit a traditional sand mastic or a neutral-cure sealant, not an acetoxy silicone that can attack some stone.
All of our work is guaranteed for twelve months, in Muthill and everywhere else we cover.
- Location
- Muthill (PH5)
- Wider area
- Perth and Kinross
- Cover
- 12 months on all our work
- Quotes
- A clear price before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Muthill: your questions answered
Is sand mastic in Muthill guaranteed?
All our work, in Muthill and everywhere else, comes with a 12-month guarantee. We are fully insured, and an ARBOMaster approved applicator.
Do you cover smaller places like Muthill?
Yes, smaller places are covered as well as towns. Our work covers the whole of Scotland. Let us know about access, parking and anything unusual about getting there when you book.
Are you fully insured?
Yes. We’re fully insured.
Is it OK to seal over old sealant?
No, and we never do. It may look fine at first, but the new bead soon lifts. Removing the old sealant completely is the only lasting way.
How long does sand mastic take?
That depends on how much there is to do, but most jobs take a few hours for a single window, longer for several. We’ll tell you when we quote.
Do you work for hotels and businesses?
Yes. We have worked for hotels, offices and other businesses.
Where are you based?
Mr Mastic is based in Crawley. We cover Muthill and the rest of Perth and Kinross, along with the rest of our area.
Do you work for landlords and businesses?
Yes, often. Several properties can be quoted together.
Also near Muthill
More services for Muthill
What happens if it’s left?
Not every draught comes from the sashes themselves. Gaps between the frame and the wall can be just as bad, and renewing the mastic closes them. 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.
Combining jobs into one visit is usually more efficient than separate visits, so tell us about everything that needs sealing. You’ll get one clear quote for the whole job.
What you get with us
- An ARBOMaster approved applicator
- 12-month guarantee on every job
- We never seal over old sealant
- We are fully insured
Take a look at our cost guide or our reviews.
DIY sealant or a professional job?
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
How it works
You do not need to clear the whole room or building before we come, just the space around the work. Everything nearby is protected, and the job takes a few hours for a single window, longer for several in most cases. Outside jobs in Muthill need a dry day, because sealant will not bond to a wet joint, so an outdoor job can move if the forecast changes. Indoor work goes ahead whatever the weather.
- We look at the surrounds with you and agree the joints to renew.
- 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.
- The surface is finished to suit the stone or brick.
Preparing for the visit
- Mention any sign-in or site rules at work premises
- Tell us about any previous sealing or DIY attempts
- Tell us if parking is tricky
Getting a quote
To get a quote, send an email to info@mrmastic.co.uk with the location and a short description of the problem. We’ll give you a clear quote before any work starts.
Related advice
How to look after the new joints
To keep the joints looking good and working properly:
- Have rotten timber repaired before new mastic goes in
- Make sure water runs off the sill
- Inspect the joints round the windows every year or so
- Ask us before painting near the mastic
Don’t touch or press the mastic while it hardens. It skins over quickly, but takes longer to harden fully.
Renewing mastic before redecorating saves doing it twice. Paint over cracked mastic only covers it up.
What we’re called out for in Muthill
Most of it is simply age. Sand mastic is a maintenance item like any pointing and how long it lasts depends on the weather it faces.
It’s worth asking for a quote if you see:
- Gaps where the frame meets the masonry
- Cracked mastic round a front door frame
- A silicone bead on a sash window that spoils the look
- Cement or filler used on old window joints that has cracked
In and around Muthill, as anywhere, good sand mastic starts with a clean, dry, properly prepared joint.
Before booking anyone
- How long the guarantee is
- Who turns up on the day
- What the cure time is
- How the surfaces are prepared before sealing
Windows and doors in Muthill
Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and failed outside joints work against that. Sash and case windows are common in older Scottish homes, often pointed into the wall with traditional sand mastic.
For an older house near a landmark such as St James Episcopal Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Muthill is about 15 miles north of Alloa, in Perth and Kinross. Across the PH5 area, we can carry out sand mastic at your property. Muthill is one of 107 places in Perth and Kinross where we work for sand mastic. Dundee is on our list too, about 34 miles from Muthill.
We cover every part of PH5 for sand mastic. Streets in the area include Station Road, Glebe Road and Willoughby Street, all of which we cover. Close by, we work in Crieff (3 miles north), Tullibardine (4 miles south-east), Gilmerton (4 miles north), Braco (5 miles south-west) and Blackford (5 miles south). Further out, we also cover Perth (15 miles east), Auchterarder (5 miles south-east), Letham (14 miles east), Tulloch (15 miles east), Oakbank (15 miles east) and Hillyland (14 miles east).
Local landmarks in Muthill
Well-known places in the area include Culdees Castle (1.1 miles south-east) and Muthill Village Museum (less than half a mile north). Not far away are Pond of Drummond.
How the job changes by surface
Brick reveals
Loose mastic comes out and deep gaps are packed before pointing.
Period and listed homes
Period homes look their best with traditional materials, and sand mastic is one of them.