Perth and Kinross · Scotland
Sand mastic for sash & case windows in St Fillans, Perth and Kinross
Window and door surrounds in St Fillans need attention? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Tired mastic found when preparing windows for paint
- Mastic round period door frames that has failed
- Modern sealant on a period surround
What affects the quote in St Fillans
We don’t publish a price list, because jobs vary so much. What we look at:
- The number and length of the joints
- When we can work, for business premises
- How many areas need sealing
- Whether the work is at height
A few things move the cost up or down: the old material and how easily it comes out, any mould to treat, and whether we need extra access for height. We take all of that into account in your quote.
What to tell us for a quote
What to tell us when you ask for a quote:
- The rough size of the job
- The type of property
- A few photos by email, if you can
- What the problem is, such as mould, gaps, leaks or cracking
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we’ll talk you through what we’d do. Whenever you are ready, send an email to info@mrmastic.co.uk.
About our sand mastic in St Fillans
For a listed home or one in a conservation area, ask your local planning authority whether consent is needed for work to windows. Like-for-like sand mastic is often the preferred finish. Common call-outs are for old sand mastic that has cracked, crumbled or fallen out and gaps between timber frames and stone or brick, across timber door frames, period & listed homes and brick reveals.
In and around a place like St Fillans, homes range from older stone-built cottages to newer houses. Wind-driven rain finds any gap around a frame or sill.
Each job carries a 12-month guarantee, large or small.
- Where
- St Fillans (PH6)
- Wider area
- Perth and Kinross
- Guarantee
- A year, on every job
- Quote
- Quoted before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026
What sand mastic looks like in St Fillans
St Fillans is in the west of Scotland, which is wetter than the east, which means the mastic around older windows and doors has to cope with a lot of rain. Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and failed outside joints work against that.
In the older streets around Church Of The Holy Spirit, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
St Fillans is about 20 miles north of Stirling, in Perth and Kinross. If you need sand mastic in St Fillans, please drop us a line at info@mrmastic.co.uk for a quick quote. We are based in Crawley and cover Perth and Kinross. Across Perth and Kinross, we cover 107 places, St Fillans among them. Glasgow is on our list too, around 38 miles away.
Our applicators cover all of the PH6 postcode area for sand mastic and the streets around it. Local streets include Dundurn Walk and Manse Lane, all of which we cover. If you are just outside St Fillans, we cover Comrie (5 miles east), Lochearnhead (7 miles west), Killin (9 miles north-west), Strathyre (10 miles south-west) and Callander (11 miles south).
Around St Fillans
For a walk, there’s Creag Odhar and Loch Boltachan.
Signs you need sand mastic in St Fillans
Shallow joints are a common cause. A thin layer doesn’t hold well so we make sure the new mastic is the right thickness.
Most people get in touch after spotting one of these:
- Gaps between timber frames and stone or brick
- Old sand mastic that has cracked, crumbled or fallen out
- Silicone on a period window that looks wrong
- Mastic that needs renewing before redecorating
Around St Fillans, as everywhere, sand mastic is only as good as the preparation behind it.
What to look for in a quote
- Who turns up on the day
- Which sealant they’ll use, and why
- What the quote includes, VAT included or not
- Whether all the old sealant comes out first
Questions from St Fillans
What guarantee comes with sand mastic in St Fillans?
Every job comes with our 12-month guarantee, wherever it is. We are fully insured, and an ARBOMaster approved applicator.
Do you cover St Fillans for sand mastic?
Yes, St Fillans is within the area we cover. We work across all of Scotland. Just drop us a line at info@mrmastic.co.uk with a few details of the job, and we’ll give you a clear quote.
Do you hold any approvals?
Yes. We are an ARBOMaster approved applicator, which is run for the Arbo sealant brand.
Will it make a mess?
Very little: the area around the joints is protected first, and we tidy up before we go.
Is it possible to take out silicone and use sand mastic instead?
Generally, yes. With the silicone removed and the joint cleaned, sand mastic is applied by hand.
Can you quote for more than one area?
Yes, and it often makes sense. Combining jobs makes good use of the visit, so mention them when you ask for a quote.
Do you take out the old sealant first?
Yes. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.
Can tenants book the work?
Yes, but check with your landlord or agent first. Landlords are often happy for the work to be arranged.
More services for St Fillans
How to look after the new joints
So the new joints stay in good condition:
- Don’t run silicone over sand mastic
- Get any rot dealt with first
- Check the mastic when you check the paintwork
- Plan mastic work ahead of painting
Check the mastic when you check the paintwork. Catching cracks early keeps repairs small.
Once mastic starts to crumble, rain gets in. It can soak into the frame and the surrounding masonry, so renewing it early is worth it.
For landlords and businesses
In hotels, rooms out of use cost money, so we plan the work room by room. We have worked in hotels as well as homes and businesses.
We also work for property managers and facilities teams in St Fillans and across Perth and Kinross. We can quote a run of properties together.
What the job involves on each surface
Timber door frames
Round a period front door, sand mastic gives the right look.
Sash and case windows
The mastic round a sash window is on show, so a neat, even finish matters.
How it works
There is not much for you to do on the day. Show us the job and we will take it from there. The job generally takes a few hours per window, depending on the condition of the joints, including the tidy-up. Outdoor work around St Fillans depends on the weather, as sealant needs a dry surface, so an outdoor job can move if the forecast changes. Work indoors isn’t affected.
- We start by checking each surround and agreeing the joints to renew.
- Old, loose mastic is raked out and the joint cleaned.
- Large voids are packed out first, so the mastic isn’t too thick.
- Sand mastic is mixed and applied by hand, then shaped to the joint.
- The mastic is finished to sit tidily against the stone or brick.
Before we arrive
- Keep pets and children clear of the area while we work
- Clear the area around the work
- Tell us about access, such as stairs, a lift or high-level joints
How to get 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 photos if that’s easy.
Advice
Honest limits
It helps to know what we cannot do:
- Masonry that needs repairing
- Rotten sashes, sills or window boxes (a joiner’s job)
- Decisions on consent for listed homes
If you are not sure, just drop us a line at info@mrmastic.co.uk and we will give you a straight answer.
Where we work in St Fillans
- Period & listed homes
- Stone surrounds
- Timber door frames
- Tenement windows
- Sash and case windows
- Brick reveals