Na h-Eileanan Siar · Scotland
Sand mastic for sash & case windows in Miabhaig, Na h-Eileanan Siar
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homes and businesses in Miabhaig and across Na h-Eileanan Siar. Fully insured, ARBOMaster approved and guaranteed for a year.
- Patchy fillers round a sash window
- Open joints round the window box
- Modern sealant on a period surround
How we handle sand mastic in Miabhaig
Sand mastic has long been used to fill the joint between timber frames and masonry. It’s a mix of sand and a linseed-oil-based binder, applied by hand. On older homes, it suits the building far better than silicone. If you are dealing with cracked mastic round a front door frame and mastic worn away on windows facing the weather, we can put it right, whatever the surface.
In and around a place like Miabhaig, homes range from older stone-built cottages to newer houses. Exposed frames and sills take the full force of wind-driven rain.
All our work comes with a one-year guarantee.

- Place
- Miabhaig (HS3)
- Region
- Na h-Eileanan Siar
- Guarantee
- A year, on every job
- Quotes
- A clear price before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026
What affects the quote in Miabhaig
For a quick quote, just ask. What matters most is:
- Whether old sealant or filler has to be cut out
- The number of rooms or windows
- How easy the joints are to reach
- The product the joint needs
A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. We take all of that into account in your quote.
Asking for a quote
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- Any previous sealing or DIY work
- How we’d reach the joints
- How many joints, rooms or windows are involved
- Photos by email, if that’s easy
Call for a quick quote, or email us if that is easier. Describe what needs sealing and we’ll explain what’s involved before giving you a price.
Landlord and commercial work in Miabhaig
Failed sealant is one of the commonest items on a check-out report. Several properties can go on one quote.
Housing providers, facilities teams and property managers book us too. Several sites can be quoted together.
When it isn’t the sealant
New sealant cannot fix everything, and we will tell you before we start. Sealant won’t put right:
- Timber that has rotted
- Sashes that need overhauling
- Planning or listed building consent (your local planning authority decides)
If you’re not sure, just drop us a line at info@mrmastic.co.uk and we will give you a straight answer.
Surfaces we seal
- Tenement windows
- Timber door frames
- Period & listed homes
- Sash and case windows
- Brick reveals
- Stone surrounds
Questions from Miabhaig
Does living near the coast affect sand mastic in Miabhaig?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. The right product, a clean joint and the right depth all help it cope.
Will you come out to Miabhaig?
Yes, Miabhaig is covered. Our work covers the whole of Scotland, islands included, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Can landlords and businesses book you?
Yes. Domestic, commercial and hotel work are all part of what we do.
Is it possible to take out silicone and use sand mastic instead?
Yes, it’s a common request. All the old silicone is removed first so the mastic beds in well.
What do you put in the joint?
We choose the sealant for the joint, not the other way round. Where it moves, gets wet or faces the weather makes a difference, and we’ll tell you what we’re using.
Do the sealants smell?
Possibly a little. Any smell clears as the sealant cures.
Are you ARBOMaster approved?
Yes. We are approved under the ARBOMaster scheme, the approved applicator scheme for Arbo sealants.
How long does the job take?
As a guide, most jobs take a few hours per window, depending on the condition of the joints. Larger jobs naturally take longer, and we’ll tell you how long to expect.
Signs you need sand mastic in Miabhaig
Over the years, sand mastic weathers. It hardens, cracks and starts to come away from the frame or the masonry.
Any of these means the joints need attention:
- Gaps round a timber door in stone or brick
- A silicone bead on a sash window that spoils the look
- Draughts and rain around sash boxes
- Mastic worn away on windows facing the weather
Around Miabhaig, as everywhere, sand mastic is only as good as the preparation behind it.
Before you book anyone
- How long the guarantee is
- Whether you can choose the colour
- Whether VAT is included
- How much experience the applicator has
What happens if it’s left?
Silicone might seem the quicker option, but on period stone or brick it often looks out of place. Sand mastic is the traditional material and blends with the stone or brick. Exposed walls in smaller Scottish places take a lot of wind and rain, and once water gets behind a failed joint, damp in stone or harled walls is slow to dry out.
Rather than a set price list, we price the job in front of us: the amount of work, the old material and the access. You’ll know the price before we begin.
Why us?
- Fully insured
- 4.9 on Google from 180+ five-star reviews
- Anti-fungal sanitary silicone in wet areas
- An ARBOMaster approved applicator
Take a look at how sealant jobs are priced and what customers say.
Frames and glazing around Miabhaig
Miabhaig is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That is hard on the mastic around older windows and doors, especially on the side facing the sea. Miabhaig is in the west of Scotland, which is wetter than the east, so there’s plenty of rain for the mastic around older windows and doors to keep out.
Whether the job is in Miabhaig itself or nearby, the right material for each joint matters as much as a neat finish.
Miabhaig (Gaelic: Meavag) is in Na h-Eileanan Siar. We carry out sand mastic for homeowners, landlords and businesses in Miabhaig and nearby. Miabhaig is one of 87 towns and villages in Na h-Eileanan Siar where we work.
Work in HS3 works the same way as everywhere else we cover. Other places close to Miabhaig include Drinisiadar (1 mile south-east), Direcleit (2 miles north), Greosabhagh (2 miles south), Plocrapool (2 miles south-east) and Tarbert (2 miles north). Remote and island addresses need a little more planning, so tell us where you are when you ask for a quote.
Near you in Miabhaig
Not far away are Ben Luskentyre and Loch Laxdale.
What we do, step by step
On the day, there’s very little for you to do. Show us the job and we will take it from there. The work itself takes a few hours per window, depending on the condition of the joints from start to finish. Somewhere like Miabhaig 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.
- We start by checking each surround and agreeing the joints to renew.
- Old, loose mastic is raked out and the joint cleaned.
- Large voids are packed out first, so the mastic isn’t too thick.
- The mastic is mixed, pressed into the joint by hand and shaped.
- The mastic is finished to sit tidily against the stone or brick.
Getting ready for the visit
- Let us know about earlier repairs to the joints
- Tell us if parking is tricky
- Keep pets and children clear of the area while we work
Ask for a quote
We don’t publish a price list, because every job is different. Instead, your job gets its own clear quote. To get started, drop us a line at info@mrmastic.co.uk.
Advice
Places near Miabhaig
Also in Miabhaig
Should I try it myself first?
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
