Perth and Kinross · Scotland
Window & door mastic in Muthill, Perth and Kinross
Mastic around window and door frames, sills and patio doors in Muthill, with a one-year guarantee on every job. Ask us for a quote.
- Old mastic that has gone black or come away
- Sealant in the wrong colour for the frame
- Water coming in at the bottom corners of a door
About our window mastic in Muthill
Around Muthill we seal all kinds of frames: from uPVC casements to timber and aluminium, along with patio doors, French doors and sills. Each gets a sealant chosen for the frame and the wall it meets. Typical jobs include untidy mastic left by window fitters and white mastic on grey or black frames, on patio & French doors, composite doors and uPVC windows.
Mastic can only go onto a dry joint, so outside work in Muthill depends on the weather. Let us know about access to every frame, including any upstairs.
A one-year guarantee comes with the work, just as it does everywhere we cover.
- Place
- Muthill (PH5)
- Wider area
- Perth and Kinross
- Guarantee
- 12 months on all our work
- Quotes
- A clear price before we start
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Honest limits
It helps to know what we cannot do too:
- Draughts through the window seals rather than the frame
- Damp problems in the wall away from the window
- Soft or decayed wood in the frame
Not sure which it is? You can drop us a line at info@mrmastic.co.uk and we’ll tell you honestly.
What we seal
- Aluminium frames
- Timber windows & doors
- Composite doors
- Window sills
- uPVC windows
- Patio & French doors
Quotes for window mastic in Muthill
The price is agreed before any work begins. It takes into account:
- The amount of work
- When we can work, for business premises
- Access and height
- The product the joint needs
We don’t show prices on the website, because each job is priced on what it involves. For a quick quote, please send an email to info@mrmastic.co.uk.
Helping us quote
Photos by email are helpful but not essential. Please mention:
- How we’d reach the joints
- A few pictures by email, if you can
- Where the property is
- What the problem is, such as mould, gaps, leaks or cracking
Want a quote for window mastic? Please send an email to info@mrmastic.co.uk and tell us about the job. We will explain what we’d do and send you a clear quote before we start.
What we’re called out for in Muthill
Joints that are too thin or too deep fail early. A skim of sealant over a wide gap soon tears, and a gap filled solid can’t flex. That is what backing rod is for.
The problems people generally mention when they call include:
- Cold air getting in at the frame edge
- Cracked internal joints between frame and plaster
- Old mastic that has gone black or come away
- Rushed sealant from a window installation
If you live in an older home near St James Episcopal Church, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
What your quote should include
- What the quote includes, VAT included or not
- How long the guarantee is
- Whether the sealant suits the joint
- How the colour is chosen
Your questions about window mastic in Muthill
Do you cover smaller places like Muthill?
Yes. Muthill is within the area we cover, which takes in towns, villages and rural addresses. We work across all of Scotland. Just mention lanes, gates or anything else about the route when you book.
Do you cover Muthill for window mastic?
Yes, Muthill is within the area we cover. We work across all of Scotland. Just email us at info@mrmastic.co.uk with a few details of the job, and we will give you a clear quote.
What do you put in the joint?
Quality sealants from brands including Arbo and Everbuild, chosen to suit the joint. We explain the product when we quote.
Do you take out the old sealant first?
Yes, every time. New silicone does not stick to old silicone, so the joint is cleaned back first.
Do you work on first-floor windows?
Yes, where they can be reached safely. Let us know about access when you ask for a quote so we can plan the job.
Can resealing stop a draught around my window?
It will if the frame joint is the problem. We check where the draught is before work begins.
Can new sealant go over the old?
No. We remove every bit of old sealant first, so the new sealant bonds properly.
Where do you work from?
We’re a Crawley-based firm. Our area covers South East England, London and Scotland.
What we do, step by step
You don’t need to clear the whole room or building, only the area right around the joints. Everything nearby is protected, and the work takes a few hours for a handful of frames, longer for a whole house in most cases. Outdoor work around Muthill depends on the weather, as sealant needs a dry surface, so external jobs may need to move if the day turns wet. Indoor work goes ahead whatever the weather.
- We check how each frame can be reached safely.
- All the failed sealant is cut away.
- Frame and wall are cleaned and must be dry before sealing, and primed where the sealant calls for it.
- Backing rod fills deep voids and the sealant goes in on top.
- The joint is shaped to shed water and the area tidied.
Getting ready for the visit
- Tell us about any water getting in
- Keep children and pets away from the work area
- For indoor joints, keep the area dry beforehand if you can
Ask for a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and add pictures by email if you can.
Read more
DIY sealant or a professional job?
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs 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 lifts and traps water and mould underneath. All the old material has to come out first.
Nearby places to Muthill
Other services in Muthill
What window mastic looks like in Muthill
Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and sound outside sealant is part of that. Many older homes in Scotland have sash and case windows, often pointed into the wall with traditional sand mastic.
In and around Muthill, as anywhere, good window mastic starts with a clean, dry, properly prepared joint.
Muthill is about 15 miles north of Alloa, in Perth and Kinross. Muthill gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Across Perth and Kinross, we cover 107 places, Muthill among them. We also work in Dundee, around 34 miles away.
We work across PH5 for window mastic. Local streets include Station Road, Glebe Road and Willoughby Street. 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). We also work in nearby towns such as 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).
Landmarks near 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
Timber windows & doors
Wood swells when it’s wet and shrinks when it dries, so the joint must stay flexible. The paint or stain needs to be sound where the sealant meets it.
Window sills
Every drop off the glass ends up on the sill, so the joints at each end and underneath matter. Each is cleaned out and resealed.
How to look after the new joints
No joint lasts for ever, but care makes a real difference. A few tips:
- Do not aim a pressure washer at the joints
- Walk round the house once a year and look at the joints
- Make sure the drainage slots are not blocked
- Wipe condensation off the frames
Most silicone sealants will not take paint, so mention any painting plans before work begins. There are paintable sealants for joints that need it.
Water gets in quietly when mastic fails. Often the first sign is a damp patch inside or flaking paint on the reveal. Catching it early keeps the fix to a reseal.