Perth and Kinross · Scotland
Grandtully Window Mastic
Mastic around window and door frames, sills and patio doors for homes and businesses in Grandtully and across Perth and Kinross. Fully insured, ARBOMaster approved and guaranteed for a year.
- Mastic that has split away from the wall
- Sealant in the wrong colour for the frame
- Damp patches on the reveal after heavy rain
Common problems we fix in Grandtully
Some failures date back to when the windows were fitted. Mastic laid onto dusty, damp or crumbling surfaces never bonded as it should, so it comes away long before its time.
It’s worth asking for a quote if you see:
- A bead that doesn’t match the frame
- Cracked internal joints between frame and plaster
- Old mastic that has gone black or come away
- Gaps where the sill meets the wall
Letting a property close to Pitlochry station? Then cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
What to look for in a quote
- How long the guarantee is
- How much experience the applicator has
- Is VAT in the price?
- Which sealant they’ll use, and why
About our window mastic in Grandtully
Whether it’s one leaking patio door or every frame on the house, the work is priced before anything is done. Just drop us a line at info@mrmastic.co.uk and tell us how many frames there are and how they’re reached. If you have leaking joints at the ends of sills and draughty joints inside around the window, we can help, on patio & French doors, aluminium frames and uPVC windows alike.
In and around a place like Grandtully, homes range from older stone-built cottages to newer houses. Wind-driven rain finds any gap around a frame or sill.
The work is covered for a year after we finish. If there’s a problem with it, please drop us a line at info@mrmastic.co.uk.
- Place
- Grandtully (PH15, PH9)
- Region
- Perth and Kinross
- Cover
- 12 months on all our work
- Price
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
What we do, step by step
Once we’re on site, we check the joints match what you told us. If we find something unexpected, we talk it through with you first. Most jobs then take a few hours for a few frames, or a day or more for a whole house. Around Grandtully, distance and access matter more than parking. Let us know how to find you and how to reach the joints.
- We check how each frame can be reached safely.
- All the failed sealant is cut away, along with any loose debris.
- The surfaces are cleaned and left dry, and primed where the sealant calls for it.
- Backing rod fills deep voids and the sealant goes in on top.
- We tool the joint so water runs off, then clear up.
Getting ready for the visit
- On commercial sites, let us know about site rules
- Tell us about any previous sealing or DIY attempts
- Try not to wet indoor joints just before the visit
Getting a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we will talk you through what we’d do. When it suits you, email us at info@mrmastic.co.uk.
Advice
Keeping the joints in good condition
To keep the joints looking good and working properly:
- Avoid blasting the frames with a pressure washer
- Paint up to the joint, not over it
- Ventilate rooms so frames don’t stay wet inside
- Look round the frames every year or so
Most silicone sealants won’t take paint, so mention any painting plans before work begins. We can use a paintable sealant where that matters.
On timber windows, water behind the joint can lead to rot. Once wood has rotted, it needs repair before it can be sealed, so early resealing is worth it.
DIY versus a professional finish
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is.
What the job involves on each surface
Composite doors
Front doors take the weather head on, and the top and bottom corners tend to fail first. We pay most attention there.
Timber windows & doors
Where timber has rotted at the joint, it needs repairing first. We’ll point out any rot we find, as that is a job for a joiner.
What window mastic looks like in Grandtully
Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and failed outside joints work against that. Many older homes in Scotland have sash and case windows, and the joint between the box frame and the stone or render is traditionally pointed with sand mastic.
In the older streets around Strathtay Parish Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Grandtully is about 17 miles west of Blairgowrie and Rattray, in Perth and Kinross. For window mastic in and around Grandtully, it’s easy to get a quote: please drop us a line at info@mrmastic.co.uk. We cover Perth and Kinross from our Crawley base, Grandtully included. Our Perth and Kinross coverage runs to 107 places, Grandtully among them. You can also see our page for Dundee, roughly 33 miles from Grandtully.
We work across PH15 and PH9 for window mastic. You’ll find streets such as The Paddock and Lageonan Road, all of which we cover. Neighbouring places we cover for window mastic include Little Ballinluig (1 mile south-west), Port na Craig (3 miles north-east), Logierait (4 miles east), Pitlochry (4 miles north-east) and Ballinluig (4 miles east).
Near you in Grandtully
The nearest railway station is Pitlochry station, roughly 3.4 miles north-east of the centre. A little further out are Pitlochry Community Hospital (3.4 miles north-east) and Tom na Croiche (3.8 miles east). The countryside around Grandtully includes Loch na Bà.
Towns and villages near Grandtully
Other services in Grandtully
Your questions about window mastic in Grandtully
Is Grandtully in your area for window mastic?
Yes. We work across all of Scotland, and Grandtully is part of that. Just drop us a line at info@mrmastic.co.uk with a few details of the job.
Do you cover smaller places like Grandtully?
Yes, smaller places are covered as well as towns. We work across all of Scotland. Just mention lanes, gates or anything else about the route when you book.
Is it messy?
Tidy work is part of the job. We protect what’s around the joints.
When is the sealant fully cured?
Different products cure at different speeds, so please follow the time we give you.
What does window mastic cost?
Size, access and the old material all affect the cost. Call for a quick quote.
Should I try DIY first?
You can, for simple jobs. Preparation is everything: all the old sealant out, and a clean, dry joint. We can always put it right if it fails.
Can you match the sealant to my frames?
Yes. White, brown, anthracite grey, black and clear sealants are all available.
Is the new sealant paintable?
Not if it’s silicone. We choose the product with your decorating in mind, so mention it when you book.
Landlord and commercial work in Grandtully
If you manage several properties in or around Grandtully, jobs at different addresses can go on one quote. Just tell us the addresses and what each one needs, and pictures by email help.
Whether it’s one flat or a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a one-year guarantee.
Honest limits
Some problems need a builder, plumber or other trade rather than us:
- A door that needs adjusting, rehanging or new seals
- Misting between the panes of a double-glazed unit (that needs a new unit)
- Rotten timber, which needs a joiner first
If in doubt, drop us a line at info@mrmastic.co.uk and we’ll say what we think.
What we seal
- uPVC windows
- Composite doors
- Window sills
- Timber windows & doors
- Patio & French doors
- Aluminium frames