Na h-Eileanan Siar · Scotland
Sand Mastic in Coig Peighinnean
Window and door surrounds in Coig Peighinnean need attention? We remove the old material, prepare the joints and seal them properly.
- Old sand mastic that has cracked, crumbled or fallen out
- Mastic that needs renewing before redecorating
- Wind and rain getting in round a sash window
Sand mastic in Coig Peighinnean
Burnt sand mastic is a traditional material that sits naturally against stone and brick. It suits period and listed homes, where modern sealant can look out of place. Typical jobs include crumbling sand mastic round a window and wind and rain getting in round a sash window, on brick reveals, period & listed homes and tenement windows.
Mastic can only go onto a dry joint, so outside work in Coig Peighinnean depends on the weather. Let us know about access to every frame, including any upstairs.
Whatever the size of the job, you get the same one-year guarantee in Coig Peighinnean and across Na h-Eileanan Siar.
- Where
- Coig Peighinnean (HS2)
- Region
- Na h-Eileanan Siar
- Guarantee
- One year on every job
- Quotes
- A clear price before work begins
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Your questions about sand mastic in Coig Peighinnean
Do you cover smaller places like Coig Peighinnean?
Yes, we do. Our work covers the whole of Scotland, islands included, from towns to the smallest places. Longer journeys are simply planned in advance.
Does living near the coast affect sand mastic in Coig Peighinnean?
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.
What do you put in the joint?
Each joint gets the product that suits it. Movement, water and weather all affect the choice, and we’ll tell you what we’re using.
Do you work for letting agents?
Yes. As well as householders, we work for landlords, agents, businesses and hotels across Na h-Eileanan Siar.
How long does sand mastic take?
Typically it takes a few hours per window, depending on the condition of the joints. Bigger jobs take longer.
Is it OK to seal over old sealant?
No, it won’t last. It can look neat for a few weeks, but the new bead soon lifts. Removing the old sealant completely is the only lasting way.
What do you need from me for a quote?
Let us know what needs doing and where, with pictures by email if possible. If we need more, we will ask.
What’s sand mastic made of?
Sand plus a binder based on linseed oil. It’s applied by hand and shaped to suit the surround.
Common problems we fix in Coig Peighinnean
Some old mastic was never deep enough. A thin layer does not hold well so we make sure the new mastic is the right thickness.
The most common problems we see are:
- Open joints round the window box
- Old cement repairs round a window that have failed
- Draughty sash windows at the surround
- Mastic dropping out of the joint
Schools such as Lionel School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages.
What to look for in a quote
- When the joint can take water or movement
- What happens if they find a problem under the old sealant
- Which colour the sealant will be
- Are they insured?
Windows and doors in Coig Peighinnean
Coig Peighinnean 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 weather, with its wind and salt spray, is tough on the mastic around older windows and doors.
Around Coig Peighinnean, as everywhere, sand mastic is only as good as the preparation behind it.
Coig Peighinnean is in Na h-Eileanan Siar. For sand mastic in and around Coig Peighinnean, please email us at info@mrmastic.co.uk for a quick quote. We cover Na h-Eileanan Siar from our Crawley base. Across Na h-Eileanan Siar, we cover 87 places, Coig Peighinnean among them.
All of HS2 is within our area for sand mastic. You will find Coig Peighinnean on the B8014, which makes it straightforward to reach. We also cover the places around Coig Peighinnean: Lìonal (1 mile south), Lionel (1 mile south), Nis (2 miles south), Ness (2 miles south) and Cross (2 miles south-west). For island and remote addresses, a little more planning is needed, so let us know when you get in touch.
Landmarks near Coig Peighinnean
Well-known places in the area include Ness Heritage Centre (1.1 miles south).
What the job involves on each surface
Period and listed homes
Period homes look their best with traditional materials.
Sash and case windows
The box of a sash and case window sits in the stone or brick opening. The gap round it is pointed with sand mastic.
Work for landlords, hotels and businesses
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
If you manage several properties in or around Coig Peighinnean, several properties can be quoted together. Just tell us the addresses and what each one needs.
Should I try it myself first?
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.
Honest limits
In fairness, there are a few things sealant won’t fix:
- Planning or listed building consent (your local planning authority decides)
- Timber that has rotted
- Sashes that rattle, stick or won’t open
Not sure which it is? You can drop us a line at info@mrmastic.co.uk and we’ll tell you honestly.
Surfaces we seal
- Tenement windows
- Period & listed homes
- Brick reveals
- Stone surrounds
- Timber door frames
- Sash and case windows
What else we do in Coig Peighinnean
The process
We work through the job in order: protect, prepare, seal, tidy. Typically it takes anything from a few hours to a full day, depending on how many windows and we leave things clean and tidy. Outside jobs in Coig Peighinnean 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. Work indoors isn’t affected.
- We check the window surrounds and agree which joints need renewing.
- We rake out the old mastic and clean the joint.
- Large voids are packed out first, so the mastic isn’t too thick.
- Sand mastic is mixed and applied by hand, then shaped to the joint.
- The mastic is finished to sit tidily against the stone or brick.
Preparing for the visit
- For business premises, tell us about site rules or sign-in
- Tell us about any previous sealing or DIY attempts
- Tell us about access, such as stairs, a lift or high-level joints
Get a quote
Need a quote? Please send an email to info@mrmastic.co.uk and tell us about the job. You’ll know what we plan to do, and what it will cost, before any work begins.
Advice
Looking after it afterwards
After the cure time, these simple habits help:
- Avoid patching sand mastic with silicone
- Do not paint over the new mastic
- Have rotten timber repaired before new mastic goes in
- Find out about consent before window work on a listed home
When preparing windows for paint, take care around the mastic. Hard scraping can loosen it.
Renewing mastic before redecorating saves doing it twice. Painting over failed mastic hides the problem for a while.