Aberdeenshire · Scotland
Window & door mastic in Cowie, Aberdeenshire
Mastic around window and door frames, sills and patio doors for householders, landlords and businesses in Cowie. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Hard, cracked sealant around windows
- Black, perished sealant on frames
- Untidy mastic left by window fitters
What the job involves on each surface
Window sills
The end joints of a sill tend to fail before the rest. A tight seal at each end keeps rain out of the wall.
Patio & French doors
Heavy door frames can move more than windows. The sealant must cope with it without cracking.
About our window mastic in Cowie
Around Cowie we seal all kinds of frames: uPVC, aluminium, timber and composite, along with patio doors, French doors and sills. The sealant is chosen to suit the frame material and the wall. If you are dealing with sealant in the wrong colour for the frame and gaps left after new windows were fitted, we can help, on uPVC windows, composite doors and timber windows & doors alike.
Outdoor sealant needs a dry surface, so window work around Cowie is planned around the weather. Let us know about access to every frame, including any upstairs.
The work is covered for a year after we finish. If anything is not right with it, email us at info@mrmastic.co.uk.
- Where
- Cowie (AB39)
- Region
- Aberdeenshire
- Cover
- A year, on every job
- Price
- Quoted before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Leave it or put it right?
Getting a straight, even bead on an outside frame takes practice, especially upstairs. A professional job is cut out properly, backed where needed and finished neatly, in a sealant suited to the wall. In a place like Cowie, small leaks are easy to put off, but water behind a failed seal does the most damage when nobody’s watching.
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether we need extra access for height. Your quote takes all of that into account.
Why book with us
- More than 20 years in sealant work
- ARBOMaster approved applicator
- We’re fully insured
- A sealant colour to suit the surroundings
Take a look at our cost guide and what customers say.
What happens on the day
There’s no need to move everything out, just the space around the work. Everything nearby is protected, and the job takes most of a day for a typical house, less for a few frames for a typical job. Somewhere like Cowie may be a longer drive, and the journey is planned ahead. Mention tracks, gates, ferries or anything else about the route.
- We check each frame and agree which ones need doing.
- Next the failed sealant is cut away and the joint cleaned.
- Deep gaps are filled with backing rod to set the depth.
- A flexible, weatherproof sealant is applied in a colour to suit the frame.
- Finally we tidy up and check each joint.
Preparing for the visit
- Let us know about parking restrictions
- Try not to wet indoor joints just before the visit
- Mention any leaks or damp you’ve noticed
Ask for a quote
We do not publish a price list, because every job is different. Instead, we give you a clear quote for your job. To arrange one, send an email to info@mrmastic.co.uk.
Related advice
Cowie: your questions answered
Is window mastic in a coastal place like Cowie any different?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. Choosing the right sealant for the frame and wall, laid at the right depth, helps it last.
Do you work for landlords with property near Stonehaven station?
Yes, landlords and agents are among the people we work for. You can send an email to info@mrmastic.co.uk with the details for a clear quote.
Do you remove the old sealant?
Yes. Sealing over old sealant is the main reason resealing fails early, so we never do it.
Does someone need to be in?
If the work is inside, we need someone to let us in. After that, you can carry on with your day.
Can you get sealant to suit coloured frames?
Yes. White, brown, anthracite grey, black and clear sealants are all available, so the joint suits the frame.
What does window mastic cost?
There’s no set price, as it depends on the job: its size, the old material, access and the product needed. You will get a clear quote before we start.
Does the work come with a guarantee?
Yes. Every job comes with our one-year guarantee, and we’re ARBOMaster approved applicators.
Should I try DIY first?
It depends on the job. High-level, external movement and fire-rated joints are professional jobs.
What else we do in Cowie
Windows and doors in Cowie
Cowie is within about 1 mile of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. Both are hard on the mastic around window and door frames, which can dry out and crack sooner where a building faces the weather. Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and sound outside sealant is part of that.
Managing a site like Mackie Academy? Then the mastic around its windows and doors needs looking after like any other building’s. If you live in an older home near Chapel of St. Mary and St. Nathalan, frames set in older brick or stone need a sealant that suits the wall as well as the frame. If you let a flat or house near Stonehaven station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Cowie is about 1 mile east of Stonehaven, in Aberdeenshire. Whether you’re in the middle of Cowie or further out, window mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Our Aberdeenshire coverage runs to 161 places, Cowie among them. We also work in Aberdeen, around 13 miles away.
Work in AB39 works the same way as everywhere else we cover. Streets in the area include Glenury Road, Amy Row and Helen Row, and we cover them all. Nearby, we also carry out window mastic in Stonehaven (1 mile west), Redcloak (1 mile west), Kirktown of Fetteresso (2 miles west), Glithno (2 miles north-west) and Muchalls (4 miles north-east). Further out, we also cover Westhill (13 miles north), Banchory (12 miles north-west), Laurencekirk (14 miles south-west), Newtonhill (5 miles north-east), Inverbervie (9 miles south) and Elrick (13 miles north).
Near you in Cowie
We work in homes and buildings around Larik Lounge pub, among other places. The nearest railway station is Stonehaven station, roughly 0.9 miles west of the centre. A little further out are Stonehaven Tolbooth (0.7 miles south) and Woodcot Hospital (1 mile south-west). Green spaces nearby include Megray Hill.
Can I do it myself?
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.
What affects the quote in Cowie
Jobs vary more than people expect. The main factors:
- Whether there’s mould to deal with
- The number of rooms or windows
- The size of the job
- The type of sealant required
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you’re unsure, email us at info@mrmastic.co.uk for an honest opinion and a quote.
What to tell us for a quote
To make quoting easier, let us know:
- A few pictures by email, if you can
- Access, such as stairs, a lift or height
- If it’s domestic, commercial or a hotel
- Roughly how big the job is
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is. When it suits you, drop us a line at info@mrmastic.co.uk.
When something else is needed
We won’t take on work that won’t last, so these are the limits:
- A sash or casement that won’t close properly
- Condensation trapped between the panes
- Draughts through the window seals rather than the frame
If you’re not sure, just drop us a line at info@mrmastic.co.uk and we will give you a straight answer.
Joints and surfaces we work on
- Window sills
- uPVC windows
- Patio & French doors
- Composite doors
- Timber windows & doors
- Aluminium frames
How to look after the new joints
Good habits help new joints last longer. Our tips:
- Repaint timber before it’s bare
- Keep drainage slots and sill grooves clear
- Walk round the house once a year and look at the joints
- Don’t aim a pressure washer at the joints
Wipe the frames with soapy water when you clean the windows, and keep solvents and harsh chemicals off the joint.
Wet, windy weather is when failed mastic shows itself, but resealing works best in dry conditions. Dealing with it when you first notice a crack avoids chasing leaks through the wet months.