Highland · Scotland
Sand mastic for sash & case windows in Inverasdale, Highland
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for householders, landlords and businesses in Inverasdale. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Failed mastic on an exposed elevation
- Wind and rain getting in round a sash window
- Mastic dropping out of the joint
About our sand mastic in Inverasdale
Across Inverasdale, we renew sand mastic around sash and case windows. Each joint is raked out, prepared and pointed by hand for a neat, traditional finish. We work on period & listed homes, tenement windows and timber door frames, and common reasons people get in touch are gaps round a timber door in stone or brick and patchy fillers round a sash window.
Mastic can only go onto a dry joint, so outside work in Inverasdale depends on the weather. Tell us about access to all the windows and doors, upstairs included.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Location
- Inverasdale (IV22)
- Region
- Highland
- Guarantee
- One year on every job
- Quotes
- A clear quote up front
- info@mrmastic.co.uk
- Updated
- 26 October 2026

Why it’s worth doing now in Inverasdale
New sash windows are a major, costly change, and in listed buildings it may need consent. If the frames are sound, renewing the mastic deals with gaps and draughts at the surround. Exposed walls in smaller Scottish places take a lot of wind and rain, and damp in stone or harled walls takes a long time to dry once water gets behind a joint.
Doing several joints on one visit is usually more efficient than separate visits, so it’s worth mentioning everything you’d like done. We will give you a clear price for the lot.
Why Inverasdale clients choose us
- We never seal over old sealant
- Anti-fungal silicone where joints get wet
- Every job guaranteed for a year
- Fully insured
See what affects the cost and customer reviews.
Other services in Inverasdale
How it works
We work through the job in order: protection first, then preparation, sealing and a tidy-up. Typically it takes a few hours for a single window, longer for several. Around Inverasdale, 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.
- 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 is not too thick.
- Sand mastic is mixed and applied by hand, then shaped to the joint.
- The finish is dressed so it sits neatly against the stone or brick.
Getting ready for the visit
- Tell us if parking is tricky
- For indoor joints, keep the area dry beforehand if you can
- For business premises, tell us about site rules or sign-in
Getting a quote
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and email pictures if that’s easy.
Related advice
How to look after the new joints
To keep the joints looking good and working properly:
- Ask the planning authority about consent for listed or conservation-area homes
- Inspect the joints round the windows every year or so
- Sort the mastic before the decorators arrive
- Ask a joiner to look at soft timber first
Avoid sealing over the mastic with silicone. If anything cracks, get it looked at before trying a quick fix.
Once mastic starts to crumble, rain gets in. That water can reach the timber frame and the wall, so renewing it early is worth it.
Different surfaces, different methods
Sash and case windows
The mastic round a sash window is on show, so a neat, even finish matters.
Timber door frames
Doors face weather and wear and the mastic can crack early. We rake it out and renew it.
Your questions about sand mastic in Inverasdale
Is sand mastic in a coastal place like Inverasdale any different?
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.
Is Inverasdale in your area for sand mastic?
Yes, Inverasdale is within the area we cover. We work across all of Scotland. You can send an email to info@mrmastic.co.uk and let us know what needs doing.
How much does sand mastic cost in Inverasdale?
Every job is different, so each one gets its own quote. For a quick quote, drop us a line at info@mrmastic.co.uk with a short description of the job.
Do I have to be there?
It depends on the job. Inside work needs someone to give us access.
What do you need from me for a quote?
The location, the problem and the rough size of the job. If you can, email a few pictures.
Can you replace silicone on a period window with sand mastic?
Yes. We remove the silicone and clean the joint, then point it with sand mastic.
Where do you work from?
Our base is in Crawley, West Sussex, and we work across South East England, London and Scotland.
What’s sand mastic made of?
It’s a mix of sand and a linseed-oil-based binder. It’s built up in the joint by hand and finished to sit neatly against the masonry.
For landlords and businesses
Whether it’s one flat or a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a 12-month guarantee.
If you manage several properties in or around Inverasdale, jobs at different addresses can go on one quote. Send us the addresses and the work at each, and pictures by email help.
Signs you need sand mastic in Inverasdale
Previous repairs in cement or silicone often trap water or crack away. They don’t suit the joint, and they normally need raking out.
People normally contact us when they notice one of these:
- Gaps where the frame meets the masonry
- Mastic round period door frames that has failed
- Cement or filler used on old window joints that has cracked
- Silicone on a period window that looks wrong
Around Inverasdale, as everywhere, sand mastic is only as good as the preparation behind it.
Questions to ask before booking
- Whether you can choose the colour
- What happens if the job turns out different
- What preparation is included
- Whether all the old sealant comes out first
Should I try it myself first?
If you are set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.
Frames and glazing around Inverasdale
Inverasdale 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. The west of Scotland is wetter than the east, so there’s plenty of rain for the mastic around older windows and doors to keep out.
For jobs in and around Inverasdale, choosing the right material for each joint is as important as a tidy finish.
Inverasdale is in Highland. If you need sand mastic in Inverasdale, it’s easy to get a quote: please send an email to info@mrmastic.co.uk. We cover Highland from our Crawley base. Our Highland coverage runs to 253 places, and Inverasdale is one of them.
Postcode districts we cover here for sand mastic: IV22. With the B8057 close by, Inverasdale is easy for our applicators to reach for sand mastic. We also cover the places around Inverasdale: Àird (3 miles north-east), Aultbea (4 miles north-east), Poolewe (4 miles south-east), Gairloch (6 miles south) and Laide (6 miles north-east). For island and remote addresses, a little more planning is needed.
Around Inverasdale
Other landmarks nearby include Arctic Convoy Museum (3.9 miles north-east). Green spaces nearby include Loch Sguod and Cnoc Breac.
