Highland · Scotland
Sand mastic for sash & case windows in Bundalloch, Highland
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homeowners, landlords and businesses in Bundalloch. Fully insured, ARBOMaster approved and guaranteed for a year.
- Weathered mastic on the most exposed windows
- A silicone bead on a sash window that spoils the look
- Patchy fillers round a sash window
Sand mastic in Bundalloch
If your home is listed or in a conservation area, check with your local planning authority if consent is needed before window work. Sand mastic is often favoured as a like-for-like material. We work on tenement windows, brick reveals and timber door frames, and the jobs we see most are gaps round a timber door in stone or brick and crumbling sand mastic round a window.
In and around a place like Bundalloch, homes range from older stone-built cottages to newer houses. Wind-driven rain finds any gap around a frame or sill.
A 12-month guarantee comes as standard, so you’re covered after we have gone.
- Location
- Bundalloch (IV40)
- Region
- Highland
- Cover
- One year on every job
- Quotes
- Quoted before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026

Why act early in Bundalloch
An open joint round the frame lets weather in. Left, water can reach the timber and the wall so renewing it early protects the window. Around Bundalloch, 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.
The cost depends on the amount of work, how much old material has to come out and access to the work. You will have a clear quote before any work starts, so you know where you stand.
What you get with us
- ARBOMaster approved applicator
- Over 20 years’ experience
- Arbo and Everbuild products
- Old sealant always removed completely
Take a look at how sealant jobs are priced or what customers say.
Your questions about sand mastic in Bundalloch
I let a flat near Stromeferry station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. Just email us at info@mrmastic.co.uk with the address and what needs doing, and we’ll give you a clear quote.
Is Bundalloch within the area you cover?
Yes. Bundalloch is within the area we cover, which takes in towns, villages and rural addresses. Our work covers the whole of Scotland. Just mention lanes, gates or anything else about the route when you book.
Do you do commercial work?
Yes. Hotels, offices and other businesses use us, and we’re fully insured.
Will it make a mess?
Tidy work is part of the job. Nearby surfaces are protected.
Do you remove the old sealant?
Always. Sealing over old sealant is the main reason resealing fails early, and it’s something we never do.
Are you insured?
Yes. Mr Mastic is fully insured.
When will the new mastic be hard?
The surface skins quite quickly and it hardens fully over a longer time. The weather and joint depth both affect it.
What do you put in the joint?
Products from Arbo and Everbuild, among others, chosen to suit the joint. We explain the product when we quote.
The process
Our applicators work methodically: protect, prepare, seal, tidy. Typically it takes a few hours per window, depending on the condition of the joints and we leave things clean and tidy. Outside jobs in Bundalloch need a dry day, because sealant won’t bond to a wet joint, so an outdoor job can move if the forecast changes. Indoor work goes ahead whatever the weather.
- We check the window surrounds and agree which joints need renewing.
- Old, loose mastic is raked out and the joint cleaned.
- 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 mastic is finished to sit tidily against the stone or brick.
Preparing for the visit
- Mention any leaks or damp you’ve noticed
- Mention any parking rules near the property
- On commercial sites, let us know about site rules
Get a quote
If you’re in Bundalloch and need sand mastic, drop us a line at info@mrmastic.co.uk. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
Read more
Keeping the joints in good condition
How long the joints last depends on use and care. Here’s what we suggest:
- Take care around the mastic when scraping paint
- Have rotten timber repaired before new mastic goes in
- Renew mastic before redecorating the windows
- Check the mastic when you check the paintwork
Leave the new mastic alone while it firms up. It skins over quickly but needs longer to fully harden.
Once mastic starts to crumble, rain gets in. It can soak into the frame and the surrounding masonry, so renewing it early is worth it.
Also near Bundalloch
Also in Bundalloch
Common problems we fix in Bundalloch
Previous repairs in cement or silicone often trap water or crack away. They do not suit the joint and we normally remove them.
Common reasons people contact us include:
- Draughts and rain around sash boxes
- Cement or filler used on old window joints that has cracked
- Mastic round period door frames that has failed
- Failed mastic on an exposed elevation
Letting a property close to Stromeferry station? Then cracked sand mastic around sash windows lets in the draughts tenants complain about.
Questions to ask before booking
- What guarantee comes with the work
- How the surfaces are prepared before sealing
- Who does the work, and how experienced they are
- What the cure time is
Landlords, agents and businesses in Bundalloch
From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
What sand mastic looks like in Bundalloch
Bundalloch is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That’s 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.
In the older streets around St Duthuc's Roman Catholic Chapel, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Bundalloch is in Highland. Bundalloch gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Bundalloch is one of 253 places in Highland we cover.
All of IV40 is within our area for sand mastic. Nearby, we also carry out sand mastic in Carndu (1 mile south-west), Dornie (1 mile south-west), Auchtertyre (4 miles west), Inverinate (5 miles south-east) and Strome Ferry (5 miles north-west). Remote and island addresses need a little more planning, so tell us where you are when you ask for a quote.
Near you in Bundalloch
For rail, the closest station is Stromeferry station, roughly 4.8 miles north-west. A little further out are Eilean Donan Castle (1.4 miles south-west). Open spaces near Bundalloch include Loch Ainm na Gaibhre.
Honest limits
New sealant cannot fix everything, and we’d rather say so up front. It will not solve:
- Whether work needs listed building consent
- Putty and glazing repairs
- Sashes that need overhauling
If in doubt, email us at info@mrmastic.co.uk and we will say what we think.
Surfaces we seal
- Tenement windows
- Sash and case windows
- Brick reveals
- Period & listed homes
- Stone surrounds
- Timber door frames
DIY sealant or a professional job?
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
