Highland · Scotland
Window Mastic in Shandwick
Mastic around window and door frames, sills and patio doors for householders, landlords and businesses in Shandwick. Fully insured, ARBOMaster approved and guaranteed for a year.
- Sealant in the wrong colour for the frame
- Whistling draughts around closed windows
- Black, perished sealant on frames
FAQs for Shandwick
Can you help a landlord with a rental near Fearn station?
Yes. We work for landlords and agents as well as homeowners, and several properties can be quoted together. You can send an email to info@mrmastic.co.uk with the details for a clear quote.
Is window mastic in a coastal place like Shandwick any different?
Coastal homes put outside sealant through more weather than inland ones, so the choice of sealant and the preparation matter even more. It’s worth checking the walls that face the sea first.
Will there be a smell?
There can be a smell while the sealant cures, which fades as it sets. Opening a window helps.
Do you guarantee window mastic?
Yes. Our one-year guarantee covers every job.
Will you leave a mess?
We keep the work tidy. We protect what’s around the joints, and we clear up when we are done.
Should I try DIY first?
Sometimes. The key is preparation: remove all the old material and work on a clean, dry joint. If it doesn’t work out, we can redo it.
Does someone need to be in?
It depends on the job. Inside work needs someone to give us access.
Are you fully insured?
Yes. We’re fully insured, and we can confirm the details when we quote.
Window mastic in Shandwick
Mr Mastic’s applicators have more than 20 years’ experience with window and door sealants. We are ARBOMaster approved and fully insured, and every job is covered by a 12-month guarantee. If you’re dealing with leaking joints at the ends of sills and gaps left after new windows were fitted, we can help, whatever the surface.
Outdoor sealant needs a dry surface, so window work around Shandwick is planned around the weather, and longer journeys are planned in advance. Let us know about access to every frame, including any upstairs.
Big or small, it’s backed by our 12-month guarantee in Shandwick and across Highland.

- Location
- Shandwick (IV20)
- Wider area
- Highland
- Guarantee
- A year, on every job
- Price
- A clear price before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Different surfaces, different methods
Patio & French doors
Water at the foot of a door frame is not always the mastic: worn seals, blocked drainage slots or a poor threshold detail can be the cause. We check before we reseal.
Timber windows & doors
Older timber windows in stone or brick can suit sand mastic rather than modern sealant. We can talk through the options.
DIY versus a professional finish
The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
Keeping the joints in good condition
Looking after new joints is easy, and it makes a real difference:
- Check the mastic once a year
- Repaint timber before it’s bare
- Keep solvents and bleach off the sealant
- Keep drainage slots and sill grooves clear
Try not to touch the new joint while it cures, for as long as we advise. Do not point a pressure washer at the joints.
Water trapped behind a failed joint can start rot in timber frames and sills. Once wood has rotted, it needs repair before it can be sealed, so early resealing is worth it.
Frames and glazing around Shandwick
Shandwick is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. Both are hard on the mastic around window and door frames, which can dry out and crack sooner where a building faces the weather. Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and failed outside joints work against that.
Around Shandwick, as everywhere, window mastic is only as good as the preparation behind it.
Shandwick is about 12 miles north of Nairn, in Highland. Homes, rented property, offices and hotels in Shandwick is covered for window mastic, old or new, large or small. Every job comes with our 12-month guarantee. Shandwick is one of 253 places in Highland where we work. You can also see our page for Aberdeen, about 79 miles away.
All of IV20 is covered for window mastic. Whether your property is on Shore Street and New Street or anywhere close by, our applicators can take on the job. Other places close to Shandwick include Balintore (1 mile north-east), Loans of Tullich (1 mile north-west), Hilton of Cadboll (1 mile north-east), Fearn (2 miles north-west) and Hill of Fearn (2 miles north-west). We also work in nearby towns such as Nairn (12 miles south), Tain (7 miles north-west), Alness (13 miles west), Dornoch (10 miles north-west), Invergordon (10 miles south-west) and Fortrose (14 miles south-west). If you are somewhere remote, the job takes a little more planning.
What’s near Shandwick
The closest station to Shandwick is Fearn station, roughly 3.3 miles north-west of the centre. Open spaces near Shandwick include Loch Eye.
What affects the quote in Shandwick
Every job gets its own quote. This is what makes a difference:
- How much there is to do
- How many areas need sealing
- Any working-time requirements on site
- How easy the joints are to reach
Every job is a little different, so we quote each one individually. Size, access and the product the joint needs all play a part, and we will explain the quote if you ask.
Asking for a quote
What to tell us when you ask for a quote:
- Any previous sealing or DIY work
- A few photos by email, if you can
- The type of property
- The problem you’ve noticed
Asking for a quote is easy: tell us what needs doing and where, and roughly how big it is. A few pictures by email make the job easier to understand, and we will come back to you with a quote.
Work for landlords, hotels and businesses
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we will quote.
For anyone letting property in or around Shandwick, jobs at different addresses can go on one quote. Send us the addresses and the work at each, and photos by email help.
How it works
Every visit runs the same way: we look at the joints together, protect the area around them, do the work and clear up. Most jobs take a morning for a couple of windows and a door. For a place like Shandwick, longer drives are planned in advance. Mention tracks, gates, ferries or anything else about the route.
- First we look at every frame and agree the list.
- Next the failed sealant is cut away and the joint cleaned.
- We fit backing rod in deep gaps so the sealant is the right depth.
- We apply a weatherproof sealant to match the frame and tool it neatly.
- Finally we tidy up and check each joint.
Preparing for the visit
- Tell us about any previous sealing or DIY attempts
- Move anything stored near the joints
- Tell us about any water getting in
How to get 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.
Read more
Signs you need window mastic in Shandwick
Sills take more water than any other part of a window, and the ends of the sill, where it meets the wall, are where it gets in. Failed sealant there lets rain into the wall or behind the frame.
It’s worth asking for a quote if you see:
- Untidy mastic left by window fitters
- Gaps where the sill meets the wall
- White mastic on grey or black frames
- Whistling draughts around closed windows
Rented homes near Fearn station change hands often, and cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Questions to ask before you book
- How the surfaces are prepared before sealing
- How long the guarantee is
- Whether VAT is included
- Which sealant they’ll use, and why
