Na h-Eileanan Siar · Scotland
Aiginis Window Mastic
Window mastic in Aiginis from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Leaking joints at the ends of sills
- Draughty joints inside around the window
- Rain getting in at the frame or under the sill
Common questions in Aiginis
Does the coastal weather in Aiginis affect outside sealant?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. Choosing the right sealant for the frame and wall, laid at the right depth, helps it last.
Can you do window mastic in Aiginis?
Yes, Aiginis is within the area we cover. Our work covers the whole of Scotland. You can send an email to info@mrmastic.co.uk and let us know what needs doing, and we will send you a clear quote.
Is there any odour?
There can be a smell while the sealant cures, which fades as it sets. Ventilation helps.
Where is Mr Mastic based?
We’re based in Crawley, West Sussex, and we work across South East England, London and Scotland.
Does the work come with a guarantee?
Yes. Our 12-month guarantee covers every job, inside or out.
Can you reach windows above the ground floor?
Yes, in most cases. We plan safe access before the job.
Do you work for landlords and businesses?
Yes. As well as homeowners, we work for landlords, agents, businesses and hotels across Na h-Eileanan Siar.
What do you put in the joint?
Products from Arbo and Everbuild, among others, chosen to suit the joint. We’ll tell you what we are using and why.
Window mastic for homes and businesses in Aiginis
There are two joints on most windows. The external joint is the weather seal; the internal joint closes the gap to the plaster and stops draughts. We seal one or both, depending on what’s needed. Typical jobs include rain getting in at the frame or under the sill and gaps where the sill meets the wall, across patio & French doors, window sills and aluminium frames.
Older stone-built homes in Scotland often have sash and case or timber windows set in stone. Those suit a traditional sand mastic or a neutral-cure sealant, not an acetoxy silicone that can attack some stone.
Big or small, you get the same 12-month guarantee in Aiginis and across Na h-Eileanan Siar.
- Where
- Aiginis (HS2)
- Wider area
- Na h-Eileanan Siar
- Guarantee
- One year on every job
- Price
- Quoted before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Window mastic in Aiginis: local notes
Aiginis is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That is hard on the mastic around window and door frames, especially on the side facing the sea. Island weather, with its wind and salt spray, is tough on the mastic around window and door frames.
For jobs in and around Aiginis, choosing the right material for each joint is as important as a tidy finish. In and around Aiginis, as anywhere, good window mastic starts with a clean, dry, properly prepared joint.
Aiginis (Gaelic: Aignish) is in Na h-Eileanan Siar. We carry out window mastic for homes and businesses in Aiginis, as part of our work across Na h-Eileanan Siar. Across Na h-Eileanan Siar, we cover 87 places, and Aiginis is one of them.
Here we cover the HS2 postcode area for window mastic. Neighbouring places we cover for window mastic include Na h-Eileanan an Iar (1 mile north-east), Knock (1 mile east), Lower Bayble (2 miles east), Garrabost (2 miles north-east) and Pabail Uarach (3 miles east). Remote and island addresses need a little more planning, so please mention your location when you email us at info@mrmastic.co.uk.
What’s near Aiginis
Nearby you’ll also find Lewis Loom Centre (3.8 miles west) and Western Isles Hospital (3.8 miles west).
What happens on the day
Every visit runs the same way: we check the joints, protect the area around them, carry out the job and tidy away. Most jobs take most of a day for a typical house, less for a few frames. Outside jobs in Aiginis need a dry day, because sealant will not bond to a wet joint, so an outdoor job can move if the forecast changes. Indoor work goes ahead whatever the weather.
- We start by checking each window and door with you.
- Next the failed sealant is cut away and the joint cleaned.
- Where gaps are deep, backing rod goes in first.
- New exterior sealant goes on in a matching colour and is tooled smooth.
- We clear up and check every joint is fully closed.
How to prepare
- Tell us about any water getting in
- Mention any sign-in or site rules at work premises
- Let us know about stairs, lifts or work at height
Get a quote
Want a quote for window mastic? Please email us at info@mrmastic.co.uk with a few details. You’ll know what we plan to do, and what it will cost, before any work begins.
Read more
Surface by surface
uPVC windows
Plastic frames move a lot between a hot afternoon and a cold night, so the joint needs a low-modulus sealant that stays flexible. White is the usual colour, with brown, anthracite grey and black for coloured frames.
Composite doors
A composite door generally sits in a plastic outer frame, and the joint around it is sealed like a window. We match the colour to the frame.
When something else is needed
We’ll always be straight with you, so here’s what sealant cannot fix:
- Draughts through the window seals rather than the frame
- Rotten timber, which needs a joiner first
- Condensation trapped between the panes
Not sure which it is? You can drop us a line at info@mrmastic.co.uk and we’ll tell you honestly before booking.
Joints and surfaces we work on
- uPVC windows
- Patio & French doors
- Aluminium frames
- Window sills
- Timber windows & doors
- Composite doors
Quotes for window mastic in Aiginis
Call for a quick quote. The main things that affect it are:
- Whether the work is at height
- When we can work, for business premises
- Which sealant suits the joint
- Whether old sealant or filler has to be cut out
What you pay reflects the work, not a rough estimate. That is why we ask a few questions first.
What we need to know
Before you ask for a quote, have a think about:
- A few photos by email, if you can
- How many joints, rooms or windows are involved
- Where the property is
- Any access issues, like height or stairs
Call for a quick quote, or email us if that is easier. Describe what needs sealing and we will talk you through the work.
Should I try it myself first?
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly.
Towns and villages near Aiginis
Also in Aiginis
Aftercare tips
No joint lasts for ever, but care makes a real difference. Our tips:
- Wash the frames with mild soapy water
- Don’t paint over the silicone
- Walk round the house once a year and look at the joints
- Make sure the drainage slots aren’t blocked
Silicone can’t usually be painted, so mention any painting plans before we start. We can use a paintable sealant where that matters.
Water gets in quietly when mastic fails. You might not see it until plaster blows or a damp patch appears inside. Catching it early keeps the fix to a reseal.
Why it’s worth doing now in Aiginis
Redecorating is a good moment to renew the mastic. Fresh joints finish the job neatly, and it’s easier while the walls are being worked on anyway. In an older home around Aiginis, damp from a failed joint can get into timber and plaster.
Leaving a failed joint normally makes the job bigger, not smaller, because water and mould keep working on it. If you are unsure, email us at info@mrmastic.co.uk and we’ll give you an honest view and a quote.
Why book with us
- You choose the colour before work begins
- Over 20 years’ experience
- We never seal over old sealant
- Trusted Arbo and Everbuild sealants
Take a look at how sealant jobs are priced and what customers say.