Na h-Eileanan Siar · Scotland
Window Mastic in Cross
We cover Cross for mastic around window and door frames, sills and patio doors. Old sealant removed completely, joints prepared properly and a 12-month guarantee.
- A bead that does not match the frame
- Gaps where the sill meets the wall
- Mastic that has split away from the wall
FAQs for Cross
Is window mastic in a coastal place like Cross 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.
Do you cover smaller places like Cross?
Yes, we do. Our work covers the whole of Scotland, islands included, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Can you do upstairs windows?
Normally, yes. Access is planned before any work starts.
Can you get sealant to suit coloured frames?
Yes. White, brown, anthracite grey, black and clear sealants are all available.
What sealant do you use?
The product depends on the job: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.
Is it worth trying it myself?
Sometimes. Preparation is everything: all the old sealant out, and a clean, dry joint. If it doesn’t work out, we can redo it.
How do I get a quote for window mastic in Cross?
Every job is different, so each one gets its own quote. For a quick quote, drop us a line at info@mrmastic.co.uk and tell us what needs doing and where.
Can you seal over the old sealant?
No, because it fails. We remove every bit of old sealant first.
About our window mastic in Cross
The new joint does not have to be white. White, brown, anthracite grey, black and clear sealants are all available, so the line suits the frame instead of standing out. We work on window sills, uPVC windows and composite doors, and common reasons people get in touch are rushed sealant from a window installation and cold air getting in at the frame edge.
Many older Scottish homes still have timber windows set into stone walls. Those suit a traditional sand mastic or a neutral-cure sealant, not an acetoxy silicone that can attack some stone.
A 12-month guarantee comes as standard, so you are covered after we’ve gone.
- Where
- Cross (HS2)
- Wider area
- Na h-Eileanan Siar
- Cover
- 12 months on all our work
- Quotes
- A clear price before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Keeping the joints in good condition
No joint lasts for ever, but care makes a real difference. A few tips:
- Avoid harsh chemicals near the mastic
- Check the mastic once a year
- Don’t aim a pressure washer at the joints
- Wipe condensation off the frames
Wipe the frames with soapy water when you clean the windows, and keep solvents and harsh chemicals off the joint.
Water trapped behind a failed joint can start rot in timber frames and sills. Rotten timber needs a joiner, not a sealant, so early resealing is worth it.
Signs you need window mastic in Cross
Timber windows bring their own problems. Mastic painted over many times cracks with the paint, and timber moves with moisture as well as temperature.
Any of these means the joints need attention:
- Rushed sealant from a window installation
- Draughts coming in around windows and doors
- Mastic that has split away from the wall
- Sealant in the wrong colour for the frame
In and around Cross, as anywhere, good window mastic starts with a clean, dry, properly prepared joint.
What your quote should include
- What happens if the job turns out different
- Whether the sealant suits the joint
- What insurance they hold
- When the joint can take water or movement
What window mastic looks like in Cross
Cross 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. On the islands, wind and salt spray are hard on outside sealant.
Homes close to Church of Scotland include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Cross (Gaelic: Cros) is in Na h-Eileanan Siar. Whether you are in the middle of Cross or further out, we cover window mastic for every kind of property. 87 places in Na h-Eileanan Siar are on our list, from the larger towns to small villages.
We cover every part of HS2 for window mastic. Window mastic is available to properties on Rathad Chros-Sgiogarstaigh, Back Street and New Street. Other places close to Cross include North Dell (1 mile west), Nis (1 mile east), Ness (1 mile east), Lionel (2 miles north-east) and Lìonal (2 miles north-east). Island and remote addresses take a little more planning, so please mention your location when you email us at info@mrmastic.co.uk.
Local landmarks in Cross
Nearby you will also find Dell Mill (under half a mile west). For a walk, there’s Loch Langavat.
What happens if it’s left?
Running fresh sealant over the old joint is tempting, but new sealant cannot bond to old, crumbling mastic. It soon lifts and the leak carries on behind it. The old mastic has to come out. Around Cross, 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.
There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote.
Why us?
- You choose the colour before work begins
- Sanitary silicone with an anti-fungal additive in wet areas
- 20+ years of sealant experience
- An ARBOMaster approved applicator
See our cost guide and what customers say.
What the job involves on each surface
Window sills
Every drop off the glass ends up on the sill, so the joints at each end and underneath matter. They’re cut out and resealed with exterior sealant.
Timber windows & doors
Older timber windows in stone or brick can suit sand mastic rather than modern sealant. We can talk through the options.
For landlords and businesses
We work for landlords and agents as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order before the next move-in.
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance.
The process
All our tools and materials come with us in the van. Once we have agreed what’s being done, the area is protected and the work begins. Most jobs take a few hours for a few frames, or a day or more for a whole house. Somewhere like Cross may be a longer drive, and the journey is planned ahead. Tell us about tracks, gates, a ferry crossing or anything unusual about getting there.
- First, we confirm safe access to each frame.
- Old, cracked mastic is removed completely.
- Frame and wall are cleaned and must be dry before sealing.
- Deep voids are backed, then the sealant is gunned in.
- We tool the joint so water runs off, then clear up.
Preparing for the visit
- Mention any leaks or damp you’ve noticed
- Tell us if parking is tricky
- Mention any sign-in or site rules at work premises
Get a quote
We quote each job on its own, so the first step is telling us about yours. Simply email us at info@mrmastic.co.uk and describe the job and send pictures if you have them.
Related advice
When something else is needed
We will not take on work that won’t last, so here’s what sealant cannot put right:
- Soft or decayed wood in the frame
- Broken hinges, locks or handles
- Worn gaskets, brush seals or a door that has dropped
If you are not sure, just email us at info@mrmastic.co.uk and we will give you a straight answer before you book.
What we seal
- Patio & French doors
- uPVC windows
- Composite doors
- Window sills
- Aluminium frames
- Timber windows & doors