Highland · Scotland
Window & door mastic in Kilbeg, Highland
Our applicators work in Kilbeg on mastic around window and door frames, sills and patio doors. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.
- Old mastic that has gone black or come away
- Draughts coming in around windows and doors
- Cracked internal joints between frame and plaster
Kilbeg questions
Is Kilbeg within the area you cover?
Yes, Kilbeg is covered. Our work covers the whole of Scotland, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Do you cover Kilbeg for window mastic?
Yes. We work across all of Scotland, and Kilbeg is part of that. You can email us at info@mrmastic.co.uk and tell us what needs doing.
Can you seal over the old sealant?
No. Fresh sealant doesn’t stick to old sealant, and anything trapped underneath, including mould and water, stays there. We remove it all first.
Are you insured?
Yes. We’re fully insured, and we can confirm the details when we quote.
Do you remove the old sealant?
Yes. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.
Do I need to be at home?
If the work is inside, we need someone to let us in. Once we have agreed the job, you don’t need to watch us work.
Can I paint over the new sealant?
It depends on the sealant. Some hybrid sealants can be painted; silicone can’t. Tell us if you’re decorating and we will choose accordingly.
Which products do you use?
Each joint gets the product that suits it. Movement, water and weather all affect the choice, and we’ll explain our choice.
Window mastic for homes and businesses in Kilbeg
Frames and walls do not move together. Plastic and aluminium frames move with the temperature, while masonry stays fairly still. So the sealant has to stretch and recover, which is why we use a low-modulus product. Typical jobs include leaking joints at the ends of sills and sealant in the wrong colour for the frame, across aluminium frames, uPVC windows and composite doors.
Older stone-built homes in Scotland often have sash and case or timber windows set in stone. Those suit a traditional sand mastic or a neutral-cure sealant, not an acetoxy silicone that can attack some stone.
Our work is backed for twelve months, in Kilbeg and everywhere else we cover.
- Where
- Kilbeg (IV44)
- Wider area
- Highland
- Guarantee
- 12 months on all our work
- Quotes
- Quoted before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026

The process
We bring everything the job needs with us, so there’s nothing for you to buy. After a quick look at the joints together, the area is protected and the work begins. It normally takes a few hours for a handful of frames, longer for a whole house. Outside jobs in Kilbeg need a dry day, because sealant won’t bond to a wet joint, so external jobs may need to move if the day turns wet. Indoor work goes ahead whatever the weather.
- Each frame is looked over and we agree which ones need resealing.
- The old mastic is cut out and scraped back to clean surfaces.
- Where the gap is deep, backing rod goes in first.
- A flexible exterior sealant is applied in a colour to suit the frame.
- Every joint is tooled smooth and checked before we leave.
Before we arrive
- For business premises, tell us about site rules or sign-in
- Mention any tricky access
- Tell us if parking is tricky
How to get a quote
For window mastic in Kilbeg, drop us a line at info@mrmastic.co.uk. Tell us what the problem is and where, and you’ll get a clear quote before work begins.
Related advice
More services for Kilbeg
Looking after it afterwards
How long the joints last depends on use and care. Here’s what we suggest:
- Don’t paint over the silicone
- Clean frames with a soft cloth and soapy water
- Keep solvents and bleach off the sealant
- Don’t aim a pressure washer at the joints
Most silicone sealants won’t take paint, so mention any painting plans before work begins. We can use a paintable sealant where that matters.
A failed joint lets water into the wall a little at a time. You might not see it until plaster blows or a damp patch appears inside. Early resealing stops it reaching that point.
For landlords and businesses
For anyone letting property in or around Kilbeg, jobs at different addresses can go on one quote. Send us the addresses and the work at each, and pictures by email help.
From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
Can I do it myself?
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 does not work out, we can still put it right.
A DIY attempt doesn’t rule out a professional job. We cut it out and start again, so just mention it when you contact us.
What affects the quote in Kilbeg
We quote each job individually. These are the things that affect it:
- The type of sealant required
- Any working-time requirements on site
- How much old sealant there is and how hard it is to remove
- Whether the work is at height
Every job is a little different, so each one gets its own quote. Size, access and the product the joint needs all play a part.
Asking for a quote
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- A few pictures by email, if you can
- What’s wrong with the joints now
- How we’d reach the joints
- If someone has resealed it before
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and add photos by email if you can.
Different surfaces, different methods
Window sills
Masonry sills can have joints where water gets in, and the joint under the frame can let rain run behind. We seal those with a sealant suited to masonry.
Composite doors
A composite door usually sits in a plastic outer frame, so its perimeter joint is sealed much like a window. We match the colour to the frame.
Common problems we fix in Kilbeg
Every frame moves through the day. A plastic or aluminium frame lengthens in sunshine and shortens as it cools, while the brick or render around it hardly moves. A sealant that cannot keep up eventually tears.
Any of these means the joints need attention:
- Cracked or shrunken mastic around the frame
- Cracked internal joints between frame and plaster
- Leaking joints at the ends of sills
- Rain getting in at the frame or under the sill
In the older streets around Sleat Parish Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Questions to ask before booking
- When the joint can take water or movement
- Which sealant they’ll use, and why
- Whether VAT is included
- What happens if they find a problem under the old sealant
Windows and doors in Kilbeg
Kilbeg is within about 1 mile of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That’s hard on the mastic around window and door frames, especially on the side facing the sea. 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.
In and around Kilbeg, as anywhere, good window mastic starts with a clean, dry, properly prepared joint.
Kilbeg is in Highland. Every kind of property in Kilbeg can book us for window mastic, old or new, large or small. The work is guaranteed for a year. Across Highland, we cover 253 places, and Kilbeg is one of them.
We cover every part of the IV44 postcode area for window mastic and the streets around it. Nearby, we also carry out window mastic in Armadale (2 miles south-west), Ardvasar (2 miles south-west), Mallaig (6 miles south), Morar (8 miles south) and Glenancross (9 miles south). Island and remote addresses take a little more planning, so please mention your location when you send an email to info@mrmastic.co.uk.
What’s near Kilbeg
Other landmarks nearby include Armadale Castle (1.2 miles south-west) and Museum of the Isles (1.3 miles south-west). Open spaces near Kilbeg include Sgùrr nan Caorach and Loch Ard.
