Angus · Scotland
Colliston Window Mastic
Window and door frames in Colliston need attention? We cut out the old, prepare the joints and apply the right sealant, with a one-year guarantee.
- Rain getting in at the frame or under the sill
- Gaps where the sill meets the wall
- Gaps left after new windows were fitted
For landlords and businesses
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance.
Landlords and agents in Colliston can book us as well as homeowners. Sealant work between tenants is a simple way to keep a property in good order.
Window mastic in Colliston, done properly
Most frames have an outside joint and an inside one. Outside, the mastic keeps rain out; the internal joint closes the gap to the plaster and stops draughts. Either or both can be done. We work on window sills, aluminium frames and uPVC windows, and common reasons people get in touch are mastic that’s falling out in pieces and whistling draughts around closed windows.
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, so the mastic there works hard.
Each job carries a 12-month guarantee.
- Place
- Colliston (DD11)
- Region
- Angus
- Guarantee
- One year on every job
- Quotes
- A clear price before work begins
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Also near Colliston
What else we do in Colliston
Colliston: your questions answered
Do you work for landlords with property near Arbroath station?
Yes. We work for landlords and agents as well as householders. You can send an email to info@mrmastic.co.uk with the details for a clear quote.
Can you do window mastic in Colliston?
Yes, Colliston 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.
Will new mastic stop draughts?
It will if the frame joint is the problem. We check where the draught is before any work starts.
Do you take out the old sealant first?
Yes. Sealing over the old bead is the commonest cause of early failure, so we never do it.
Can you work on commercial sites?
Yes. Commercial and hotel work is a large part of what we do, as well as homes. Working times can be discussed when we quote.
What do you put in the joint?
Each joint gets the product that suits it. Movement, water and weather all affect the choice, and we’ll explain our choice.
Is it worth trying it myself?
It depends on the job. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional.
Will it make a mess?
Tidy work is part of the job. Nearby surfaces are protected, and we clear up when we are done.
Window mastic in Colliston: local notes
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. Many older homes in Scotland have sash and case windows, often pointed into the wall with traditional sand mastic.
Around Colliston, as everywhere, window mastic is only as good as the preparation behind it.
Colliston is about 3 miles north-west of Arbroath, in Angus. If you need window mastic in Colliston, it’s easy to get a quote: please drop us a line at info@mrmastic.co.uk. We are based in Crawley and cover Angus. Our Angus coverage runs to 40 places, and Colliston is one of them. Our Dundee page covers work nearby, about 15 miles away.
Here we cover the DD11 postcode area for window mastic. Neighbouring places we cover for window mastic include St Vigeans (2 miles south-east), Arbroath (3 miles south-east), Friockheim (3 miles north), Balmirmer (4 miles south-west) and Inverkeilor (5 miles north-east). Further out, we also cover Forfar (10 miles west), Carnoustie (7 miles south-west), Kirriemuir (15 miles west), Brechin (10 miles north), Hunter's Town (7 miles south-west) and Gardynebourg (7 miles south-west).
Local landmarks in Colliston
Colliston’s nearest station is Arbroath station, roughly 3.2 miles south-east of the centre. A little further out are Braikie Castle (4 miles north) and St Vigeans Sculptured Stones Museum (2.4 miles south-east).
How it works
At the end, we look at the finished work together. The work normally takes a morning for a couple of windows and a door, depending on the amount of work. In smaller Scottish places, parking is generally less of an issue than access and distance. Tell us how to find the property and how to reach the work.
- First we look at every frame and agree the list.
- Next the failed sealant is cut away and the joint cleaned.
- Deep gaps are filled with backing rod to set the depth.
- New exterior sealant goes on in a matching colour and is tooled smooth.
- Finally we tidy up and check each joint.
Preparing for the visit
- Let us know about stairs, lifts or work at height
- Keep children and pets away from the work area
- Where the joints are inside, avoid wetting them before we arrive
Ask for a quote
Want a quote for window mastic? Please send an email to info@mrmastic.co.uk with a few details. We’ll explain what we’d do and give you a clear price before any work starts.
Advice
Common problems we fix in Colliston
Some failures date back to when the windows were fitted. Sealant run over dust, wet brick or loose mortar never bonded as it should, and it lets go sooner than it should.
These are the problems we are asked about most:
- Gaps left after new windows were fitted
- Cracked or shrunken mastic around the frame
- Cracked internal joints between frame and plaster
- White mastic on grey or black frames
If you let a flat or house near Arbroath station, renewing tired window mastic between tenants heads off draught and damp complaints.
What to look for in a quote
- How the surfaces are prepared before sealing
- Whether VAT is included
- Is the old sealant removed completely?
- Are they insured?
When something else is needed
New sealant can’t fix everything, and we’ll tell you before any work starts. It will not solve:
- Draughts through the window seals rather than the frame
- A frame that has rotted at the joint
- Faulty window hardware
Not sure which it is? You can drop us a line at info@mrmastic.co.uk and we will tell you honestly before you book.
Joints and surfaces we work on
- uPVC windows
- Timber windows & doors
- Aluminium frames
- Patio & French doors
- Composite doors
- Window sills
Should I try it myself first?
If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly, so tell us about it when you ask for a quote.
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
Quotes for window mastic in Colliston
Call for a quick quote. The main things that affect it are:
- Mould in or behind the old joints
- The type of sealant required
- How many rooms, windows or areas are involved
- Working hours on commercial sites
Combining jobs into one visit is usually more efficient than separate visits. We’ll give you a clear price for the lot.
Asking for a quote
To help us quote quickly, let us know:
- Photos by email, if that is easy
- The type of property
- Whether it has been sealed before
- How we’d reach the joints
Call for a quick quote, or email us if that’s easier. Describe what needs sealing and we will talk you through the work before giving you a price.
Looking after it afterwards
To keep the joints looking good and working properly:
- Keep timber frames painted
- Look round the frames every year or so
- Keep solvents and bleach off the sealant
- Clean frames with a soft cloth and soapy water
Keep sill grooves and drainage slots clear, so water can run away instead of sitting against the joint.
A small gap around a frame only grows. As the old mastic shrinks further, more air gets through, and a cold room gets colder. A new joint closes it up.