Highland · Scotland
Window & door mastic in Achiltibuie, Highland
Mastic around window and door frames, sills and patio doors for homes and businesses in Achiltibuie and across Highland. Fully insured, ARBOMaster approved and guaranteed for a year.
- Cracked sealant at the sill ends
- Cold air getting in at the frame edge
- Damp patches on the reveal after heavy rain
Common problems we fix in Achiltibuie
Sills take more water than any other part of a window, and the ends of the sill, where it meets the wall, are where it gets in. When that sealant fails, water gets into the wall or under the frame.
The most common problems we see are:
- Water coming in at the bottom corners of a door
- Hard, cracked sealant around windows
- White mastic on grey or black frames
- Leaking joints at the ends of sills
Whether the job is in Achiltibuie itself or nearby, the right material for each joint matters as much as a neat finish.
Before booking anyone
- Which sealant they’ll use, and why
- How long to leave it before use
- How the joint is cleaned and prepared
- Who turns up on the day
Window mastic in Achiltibuie, done properly
Whether it’s one leaking patio door or every frame on the house, you’ll get a clear quote before work begins. Just send an email to info@mrmastic.co.uk and tell us how many frames there are and how they’re reached. If you have mastic that has split away from the wall and sealant in the wrong colour for the frame, we can put it right.
Many older Scottish homes still have timber windows set into stone walls. Those suit a traditional sand mastic or a neutral-cure sealant, not an acetoxy silicone that can attack some stone.
Each job carries a 12-month guarantee.

- Where
- Achiltibuie (IV26)
- Wider area
- Highland
- Cover
- A year, on every job
- Quotes
- A clear quote up front
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Keeping the joints in good condition
No joint lasts for ever, but care makes a real difference. A few tips:
- Don’t paint over the silicone
- Keep paint and stain on wooden frames in good order
- Look round the frames every year or so
- Use gentle cleaners on frames and sealant
Try not to touch the new joint while it cures, for as long as we advise. Keep jet washers away from the frames.
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.
When something else is needed
It helps to know what we can’t do too:
- Condensation trapped between the panes
- Worn gaskets, brush seals or a door that has dropped
- A sash or casement that will not close properly
If in doubt, email us at info@mrmastic.co.uk and we’ll say what we think.
Surfaces we seal
- Patio & French doors
- Timber windows & doors
- uPVC windows
- Composite doors
- Aluminium frames
- Window sills
What else we do in Achiltibuie
How the job changes by surface
Aluminium frames
Bi-fold and sliding aluminium doors have long frame joints, and the bottom joint sees the most water. Each is cleaned, backed where deep and resealed.
uPVC windows
We clean the frame edge carefully so the plastic isn’t marked, then the new bead is laid against the frame and the wall and tooled smooth.
What affects the quote in Achiltibuie
There’s no set price list. The quote depends on:
- The type of sealant required
- Any mould that needs treating
- Access and height
- Whether old sealant or filler has to be cut out
Commercial jobs are quoted on the same basis as homes: how much there is to do, how we reach it and what it needs, plus any working-time requirements on site. Call for a quick quote and we’ll go through it with you.
Helping us quote
Before you ask for a quote, have a think about:
- What’s wrong with the joints now
- If someone has resealed it before
- Access, such as stairs, a lift or height
- Where the job is, and your postcode
There’s no standard price list. Instead, we give you a clear price for your job. To arrange one, send an email to info@mrmastic.co.uk.
The process
Most of a good job is in the preparation, and we don’t rush it. Joints are cleaned back and dried before anything new goes in. All told, the work takes a few hours for a handful of frames, longer for a whole house. Somewhere like Achiltibuie may be a longer drive, and the journey is planned ahead. Tell us about tracks, gates, a ferry crossing or anything unusual about getting there.
- First, we confirm safe access to each frame.
- All the failed sealant is cut away, along with any loose debris.
- The surfaces are cleaned and left dry, and primed where the sealant calls for it.
- Backing rod fills deep voids and the sealant goes in on top.
- We tool the joint so water runs off, then clear up.
Getting ready for the visit
- Keep children and pets away from the work area
- Let us know about parking restrictions
- For business premises, tell us about site rules or sign-in
Get a quote
Every job is quoted individually. Simply send an email to info@mrmastic.co.uk and describe the job.
Read more
Why it’s worth doing now in Achiltibuie
Working on frames from a ladder with a sealant gun is not easy, especially upstairs. We cut out properly, back deep gaps and tool every joint neatly, in a sealant suited to the wall. In an older home around Achiltibuie, damp from a failed joint can get into timber and plaster, which is a far bigger job than the sealant.
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. You will know the price before we begin.
Why us?
- 180+ five-star Google reviews
- We are fully insured
- Trusted Arbo and Everbuild sealants
- Anti-fungal silicone where joints get wet
Achiltibuie homes and the weather
Achiltibuie 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. That is hard on the mastic around window and door frames, especially on the side facing the sea. Achiltibuie is in the west of Scotland, which is wetter than the east, which means the mastic around window and door frames has to cope with a lot of rain.
In and around Achiltibuie, as anywhere, good window mastic starts with a clean, dry, properly prepared joint.
Achiltibuie is in Highland. Homes, rented property, offices and hotels in Achiltibuie can book us for window mastic, old or new, large or small. Every job comes with our one-year guarantee. Achiltibuie is one of 253 towns and villages in Highland we cover for window mastic.
We work across IV26 for window mastic. If you are just outside Achiltibuie, we cover Lochinver (10 miles north), Ullapool (10 miles south-east), Laide (13 miles south-west), Stoer (13 miles north) and Stor (14 miles north). If you are somewhere remote, the job takes a little more planning, so mention it when you ask for a quote.
Local landmarks in Achiltibuie
For a walk, there’s Loch Vatachan.
Questions from Achiltibuie
Is Achiltibuie within the area you cover?
Yes, we do. Our work covers the whole of Scotland, and smaller places are part of that. Longer journeys are simply planned in advance.
Is Achiltibuie in your area for window mastic?
Yes, Achiltibuie is within the area we cover. We work across all of Scotland. You can drop us a line at info@mrmastic.co.uk and let us know what needs doing.
Can you work on commercial sites?
Yes. We work in offices, washrooms, hotels and other commercial premises. Working times can be discussed when we quote.
Are you insured?
Yes. We’re fully insured.
Can you seal the gap between the frame and the plaster indoors?
Yes. Plenty of draughts come through the inside joint as well as the outside, so it can be worth sealing both.
Can you get sealant to suit coloured frames?
Yes, we choose a colour to suit the frame. Grey and black frames get grey or black sealant, and wood-effect frames usually suit brown.
Does the work come with a guarantee?
Yes. Every job comes with our 12-month guarantee, and we’re ARBOMaster approved applicators.
Are you an approved applicator?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we are part of it.
