Na h-Eileanan Siar · Scotland
Sand Mastic in Lìonal
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for householders, landlords and businesses in Lìonal. Fully insured, ARBOMaster approved and guaranteed for a year.
- Mastic round period door frames that has failed
- Draughts and rain around sash boxes
- Modern sealant on a period surround
How we handle sand mastic in Lìonal
Old sand mastic cracks, crumbles and falls out over time, leaving gaps round the window. We rake it out and renew it and tidies the surround. We are often asked to deal with a silicone bead on a sash window that spoils the look and mastic that needs renewing before redecorating, across timber door frames, stone surrounds and brick reveals.
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.
Every job comes with a one-year guarantee, wherever you are in Na h-Eileanan Siar.
- Place
- Lìonal (HS2)
- Wider area
- Na h-Eileanan Siar
- Cover
- 12 months on all our work
- Price
- A clear price before work begins
- info@mrmastic.co.uk
- Updated
- 26 October 2026
What happens if it’s left?
Replacing sash windows is a big decision for a period home, and in listed buildings it may need consent. Where the frames are in good order, new mastic seals the surround. Around Lìonal, water from a failed joint in an older stone home can soak into timber and plaster, which is a far bigger job than the sealant.
Homes and businesses are quoted the same way: the amount of work, how we reach it and what it needs, along with when we can work on site. Call for a quick quote and we will explain what it covers.
Why us?
- Rated 4.9 stars on Google
- Homes, businesses and hotels
- Trusted Arbo and Everbuild sealants
- We leave the area clean and tidy
Aftercare tips
A little care helps the new joints last. We recommend:
- Check with your local planning authority if your home is listed
- Renew mastic before redecorating the windows
- Get any rot dealt with first
- Inspect the joints round the windows every year or so
Avoid painting over the new mastic, which is the traditional advice. Ask us before any decorating around it.
Small cracks are a sign the mastic is ageing. Renewing it then is simpler than waiting until it falls out.
DIY versus a professional finish
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
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.
Common problems we fix in Lìonal
Water gets into small cracks in the mastic and loosens it further. Windows facing the weather tend to go first.
If you can see any of these, it’s time to have the joints looked at:
- Draughts and rain around sash boxes
- Failed mastic on an exposed elevation
- Window mastic to renew ahead of painting
- Old sand mastic that has cracked, crumbled or fallen out
Around Lìonal, as everywhere, sand mastic is only as good as the preparation behind it.
Comparing quotes
- What the quote includes, VAT included or not
- How long the guarantee is
- How hidden problems are handled
- How the surfaces are prepared before sealing
Lìonal homes and the weather
Lìonal 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 is hard on the mastic around older windows and doors, especially on the side facing the sea. Island jobs need planning around ferries and the weather, so the more notice, the better.
If you look after a building such as Lionel School, the mastic around its windows and doors needs looking after like any other building’s.
Lìonal (Gaelic: Lionel) is in Na h-Eileanan Siar. Lìonal gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a one-year guarantee. Lìonal is one of 87 towns and villages in Na h-Eileanan Siar we cover for sand mastic.
Here we cover the HS2 postcode area for sand mastic. Lìonal is on the B8013, which makes it straightforward to reach. If you’re just outside Lìonal, we cover Coig Peighinnean (1 mile north), Lionel (1 mile south-east), Nis (1 mile south), Ness (2 miles south) and Cross (2 miles south-west). Remote and island addresses need a little more planning, so please mention your location when you email us at info@mrmastic.co.uk.
What’s near Lìonal
Well-known places in the area include Ness Heritage Centre (0.8 miles south).
For landlords and businesses
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.
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance that we can handle for you.
Towns and villages near Lìonal
What else we do in Lìonal
What affects the cost of sand mastic
The quote reflects the job in front of us. We look at:
- The type of sealant required
- Whether old sealant or filler has to be cut out
- The size of the job
- Working hours on commercial sites
What it costs depends on the size of the job, how much old material has to come out and how easy the joints are to reach. You’ll have a clear quote before any work starts.
Helping us quote
Photos by email are helpful but not essential. Try to tell us:
- Whether it has been sealed before
- How many joints, rooms or windows are involved
- If it’s domestic, commercial or a hotel
- Photos by email, if that is easy
We quote each job on its own, so the first step is telling us about yours. Simply drop us a line at info@mrmastic.co.uk and describe the job and send pictures if you have them.
What happens on the day
On the day, we look over the joints with you first. We protect the surfaces around the joints before any work starts. The work generally takes a few hours per window, depending on the condition of the joints. Around Lìonal, distance and access matter more than parking. Let us know how to find you and how to reach the joints, and the visit is planned around that.
- Each surround is checked first.
- The joint is raked out and cleaned.
- Large voids are packed out.
- New sand mastic is applied and shaped by hand.
- The finish is dressed neatly.
Before we arrive
- Tell us about access, such as stairs, a lift or high-level joints
- Plan for the work area to be out of bounds to pets and children
- Mention any leaks or damp you’ve noticed
Ask for a quote
Call for a quick quote, or email us if that is easier. Describe what needs sealing and we will talk you through the work before giving you a price.
Related advice
FAQs for Lìonal
Do you cover Lìonal for sand mastic?
Yes, Lìonal is within the area we cover. Our work covers the whole of Scotland. Just drop us a line at info@mrmastic.co.uk with a few details of the job.
Is Lìonal within the area you cover?
Yes, smaller places are covered as well as towns. We work across all of Scotland, including the islands, where work is planned around ferry crossings. Let us know about access, parking and anything unusual about getting there when you book.
Can you match the sealant colour?
We help you choose a colour that suits, from white and clear to greys and other shades. The product needed can limit the range.
Where is Mr Mastic based?
Mr Mastic is based in Crawley. Our applicators cover Lìonal.
How long does sand mastic take to go off?
It takes a while. It skins first and hardens fully later and we’ll give you an idea for your job.
What do you need from me for a quote?
A short description and the location, plus pictures if you have them. If we need more, we’ll ask.
Will the old sealant be removed?
Yes. All of the old material is cut out and the joint cleaned before applying anything new.
Do I have to be there?
That depends on where the joints are. For work indoors, someone needs to let us in, and for outside work we’ll agree access with you when we book.