Angus · Scotland
Kingsmuir Window Mastic
Professional window mastic in and around Kingsmuir, with old sealant always removed completely and a 12-month guarantee.
- Whistling draughts around closed windows
- Black, perished sealant on frames
- Cracked or shrunken mastic around the frame
About our window mastic in Kingsmuir
Over two decades of sealing frames has taught us which products suit which walls. We’re ARBOMaster approved and fully insured, and we give a 12-month guarantee on the work. We work on patio & French doors, window sills and timber windows & doors, and the jobs we see most are cracked sealant at the sill ends and mastic that has split away from the wall.
Many older Scottish homes still have timber windows set into stone walls. The sealant has to suit the stone, which rules out acetoxy silicones that can mark or attack it.
Your job is guaranteed for a year, as with all our work.
- Place
- Kingsmuir (DD8)
- Region
- Angus
- Cover
- One year on every job
- Quote
- A clear price before we start
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Window mastic in Kingsmuir: local notes
Sash and case windows are common in older Scottish homes, and the joint between the box frame and the stone or render is traditionally pointed with sand mastic. 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.
For jobs in and around Kingsmuir, choosing the right material for each joint is as important as a tidy finish. Around Kingsmuir, as everywhere, window mastic is only as good as the preparation behind it.
Kingsmuir is about 2 miles south-east of Forfar, in Angus. Jobs in Kingsmuir get the same care as everywhere else we work: old sealant removed completely, careful preparation and a one-year guarantee. Across Angus, we cover 40 places, and Kingsmuir is one of them. We also work in Dundee, about 12 miles from Kingsmuir.
Postcode districts we cover here for window mastic: DD8. Whether your property is on Summerhill, Cunninghill View and Bunkerhill Crescent or a nearby road, we can help. We also cover the places around Kingsmuir: Lownie Moor (1 mile south), Hillend (1 mile south-east), Forfar (2 miles north-west), Lunanhead (2 miles north) and Craichie (2 miles south-east). Within a short drive, we also cover Arbroath (11 miles south-east), Carnoustie (10 miles south-east), Kirriemuir (6 miles north-west), Brechin (10 miles north-east), Hunter's Town (10 miles south-east) and Gardynebourg (10 miles south-east).
Landmarks near Kingsmuir
Locally, jobs take us to homes and businesses close to Reid Park. Nearby you will also find Forfar Castle (1.6 miles north-west) and Forfar Infirmary (1.2 miles north-west). Green spaces nearby include Loch Fithie.
What else we do in Kingsmuir
How to look after the new joints
How long the joints last depends on use and care. Here’s what we suggest:
- Clear any debris from frame drain holes
- Keep solvents and bleach off the sealant
- Check the mastic once a year
- Keep paint and stain on wooden frames in good order
Timber frames need their paint kept up, since wood that gets wet swells and shrinks more. Paint up to the joint, not over the silicone.
Look out for the warning signs: split or missing mastic, gaps, damp patches inside or black mould on the reveal. If you notice one, it’s time to get the joint looked at.
How it works
Most of a good job is in the preparation, so that is where we spend the time. Every joint is cleaned and dried before new material goes in. In total, it usually takes a few hours for a handful of frames, longer for a whole house. 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.
- We start by checking each window and door with you.
- We remove the old mastic and clean the frame and the wall.
- We fit backing rod in deep gaps so the sealant is the right depth.
- We apply a weatherproof sealant to match the frame and tool it neatly.
- Finally we tidy up and check each joint.
Preparing for the visit
- Move anything stored near the joints
- Mention if the joints have been sealed before
- Let us know about stairs, lifts or work at height
Getting a quote
Getting a quote is simple: let us know the job and the location, and roughly how big it is. A few photos by email make the job easier to understand, and we’ll come back to you with a quote.
Related advice
Kingsmuir questions
Can you do window mastic in Kingsmuir?
Yes, Kingsmuir is within the area we cover. We work across all of Scotland. Just send an email to info@mrmastic.co.uk with a few details of the job.
Is there a guarantee on window mastic in Kingsmuir?
All our work, in Kingsmuir and everywhere else, comes with a 12-month guarantee. We are also fully insured and ARBOMaster approved.
Can resealing stop a draught around my window?
It will if the frame joint is the problem. We check where the draught is before any work starts.
Can new window sealant be painted?
Silicone generally will not take paint. If you plan to paint, tell us first and we can use a paintable sealant where it suits the joint.
Is it OK to seal over old sealant?
No. We remove every bit of old sealant first.
What sealant do you use?
Quality sealants from brands including Arbo and Everbuild, picked for each joint. We will tell you what we are using and why.
Can I add another job to the visit?
Yes. Several rooms, windows or areas can go on one quote.
Are you fully insured?
Yes, we’re fully insured.
Surface by surface
Window sills
Sills catch the water running down the glass, so the joints at each end and underneath matter. They’re cut out and resealed with exterior sealant.
Timber windows & doors
Older timber windows in stone or brick can suit sand mastic rather than modern sealant. We will tell you which suits your home.
Landlords, agents and businesses in Kingsmuir
We work for letting agents and landlords as well as householders. Resealing between tenancies is a simple way to keep a property in good order.
For anyone letting property in or around Kingsmuir, several properties can go on one quote. Send us the addresses and the work at each.
Can I do it myself?
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
What affects the cost of window mastic
Some jobs are bigger than they look, and some smaller. What affects the quote:
- Access and height
- The number and length of the joints
- How many rooms, windows or areas are involved
- Whether there’s mould to deal with
Homes and businesses are quoted the same way: the amount of work, the access and the products needed. Call for a quick quote and we’ll go through it with you.
Helping us quote
Photos by email are helpful but not essential. Please mention:
- The type of property
- Any previous sealing or DIY work
- How many joints, rooms or windows are involved
- A few photos by email, if you can
If you’re in Kingsmuir and need window mastic, send an email to info@mrmastic.co.uk. Tell us what the problem is and where, and we’ll agree the price before any work begins.
Why act early in Kingsmuir
Working on frames from a ladder with a sealant gun isn’t easy, especially upstairs. A professional job is cut out properly, backed where needed and finished neatly, in a sealant suited to the wall. When the nearest tradesperson is a drive away, it’s tempting to leave a small leak, but water through a failed joint keeps working away until it’s fixed.
A failed joint rarely gets cheaper to fix by waiting. If you’re not sure whether it needs doing, email us at info@mrmastic.co.uk and we will give you an honest view and a quote.
Why us?
- A choice of colours where the product allows
- Tidy, careful work
- Sanitary silicone with an anti-fungal additive in wet areas
- Sealant colour chosen to suit