Perth and Kinross · Scotland
Window Mastic in Old Struan
Window mastic in Old Struan from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Rushed sealant from a window installation
- Damp patches on the reveal after heavy rain
- Leaking joints at the ends of sills
Window mastic in Old Struan, done properly
Frames and walls don’t move together. Heat and cold make frames grow and shrink against brick or render that hardly moves. So the sealant has to stretch and recover, which is why we use a low-modulus product. If you’re dealing with draughty joints inside around the window and untidy mastic left by window fitters, we can help, on window sills, patio & French doors and uPVC windows alike.
Across smaller places in Scotland, homes range from stone and harled cottages to newer houses, many standing in the open. Exposed frames and sills take the full force of wind-driven rain.
Each job carries a 12-month guarantee.
- Where
- Old Struan (PH18)
- Region
- Perth and Kinross
- Cover
- One year on every job
- Quotes
- Quoted before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026

The process
Good joint work is mostly preparation, so that’s where we spend the time. Joints are cleaned back and dried before anything new goes in. In total, it usually takes a morning for a couple of windows and a door. For a place like Old Struan, longer drives are planned in advance. Tell us about tracks, gates, a ferry crossing or anything unusual about getting there.
- We check how each frame can be reached safely.
- Old, cracked mastic is removed completely, 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.
Preparing for the visit
- Keep pets and children clear of the area while we work
- Mention any parking rules near the property
- Move anything stored near the joints
Ask for a quote
Quotes start with a quick conversation. Describe the problem, the location and the size of the job. Whenever you are ready, send an email to info@mrmastic.co.uk.
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How to look after the new joints
So the new joints stay in good condition:
- Do not use solvent cleaners on the joint
- Wash the frames with mild soapy water
- Repaint timber before it’s bare
- Ventilate rooms so frames do not stay wet inside
Keep sill grooves and drainage slots clear, so rain drains out rather than building up at the sealant.
On timber windows, water behind the joint can lead to rot. Rotten timber needs a joiner, not a sealant, so early resealing is worth it.
What affects the quote in Old Struan
You will get a clear quote before we start. It’s based on:
- The product the joint needs
- Working hours on commercial sites
- The amount of work
- Mould in or behind the old joints
A failed joint rarely gets cheaper to fix by waiting. If you are unsure, email us at info@mrmastic.co.uk for an honest opinion and a quote.
Asking for a quote
Photos by email are helpful but not essential. Please mention:
- Whether it’s a home or a business
- What’s wrong with the joints now
- Access, such as stairs, a lift or height
- Roughly how big the job is
Getting a quote is simple: let us know the job and the location, and roughly how big it is. Photos by email help us understand the job, and we’ll come back to you with a quote.
Frames and glazing around Old Struan
Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home 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.
Letting a property close to Blair Atholl station? Then renewing tired window mastic between tenants heads off draught and damp complaints.
Old Struan is about 26 miles north-west of Blairgowrie and Rattray, in Perth and Kinross. Homes, rented property, offices and hotels in Old Struan can book us for window mastic. Every job comes with our one-year guarantee. Our area takes in 107 places across Perth and Kinross, large and small. Our Dundee page covers work nearby, about 42 miles away.
Work in PH18 works the same way as everywhere else we cover. Other places close to Old Struan include Old Blair (4 miles east), Bridge of Tilt (4 miles east), Blair Atholl (4 miles east), Trinafour (5 miles west) and Moulin (9 miles east). For island and remote addresses, a little more planning is needed, so mention it when you ask for a quote.
Around Old Struan
Old Struan’s nearest station is Blair Atholl station, roughly 3.9 miles east. A little further out are Clan Donnachaidh Museum (0.9 miles north-east) and Blair Castle (3.7 miles east). For a walk, there’s Creag Odhar and Loch Bhac.
Nearby places to Old Struan
Other services in Old Struan
Different surfaces, different methods
Aluminium frames
Bi-fold and sliding aluminium doors have long frame joints, and the bottom joint sees the most water. We prepare and reseal every joint, backing the deep ones.
Timber windows & doors
Soft or rotten wood can’t be sealed successfully. If we find rot, we’ll tell you before going ahead, as that’s a job for a joiner.
Questions from Old Struan
Do you cover smaller places like Old Struan?
Yes, smaller places are covered as well as towns. Our work covers the whole of Scotland. Just mention lanes, gates or anything else about the route when you book.
Do you cover Old Struan for window mastic?
Yes, Old Struan is within the area we cover. Our work covers the whole of Scotland. You can email us at info@mrmastic.co.uk and let us know what needs doing, and we’ll give you a clear price.
Where do you work from?
Our base is in Crawley, and we work across South East England, London and Scotland.
Can you do upstairs windows?
Yes, if safe access is possible. For high or awkward windows, we’ll tell you what access is needed.
Can you work on commercial sites?
Yes. We work in offices, washrooms, hotels and other commercial premises, as well as homes. Working times can be discussed when we quote.
Are you fully insured?
Yes. We’re fully insured, and we have been doing sealant work for more than 20 years.
I rent my home. Can I book you?
Of course. Check with your landlord; we can send the quote to them too.
Can you match the sealant to my frames?
Yes, we choose a colour to suit the frame. Grey and black frames get grey or black sealant, and wood-effect frames usually suit brown.
DIY sealant or a professional job?
The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
Landlords, agents and businesses in Old Struan
Housing providers, facilities teams and property managers book us too in Old Struan and across Perth and Kinross. We can quote a run of properties together, and we are fully insured.
From a single let to a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a one-year guarantee.
What we’re called out for in Old Struan
Sills take more water than any other part of a window, so the sill ends and the joint below the frame are common leak points. Failed sealant there lets rain into the wall or behind the frame.
If you can see any of these, it’s time to have the joints looked at:
- Black, perished sealant on frames
- Cold air getting in at the frame edge
- Rushed sealant from a window installation
- Gaps where the sill meets the wall
In the older streets around Struan Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
What to look for in a quote
- Who does the work, and how experienced they are
- Are they insured?
- How the joint is cleaned and prepared
- What product goes in the joint
