Na h-Eileanan Siar · Scotland
Window & door mastic in Na Gearrannan, Na h-Eileanan Siar
Our applicators work in Na Gearrannan on mastic around window and door frames, sills and patio doors. Old sealant removed completely, joints prepared properly.
- Black, perished sealant on frames
- Gaps where the sill meets the wall
- Water coming in at the bottom corners of a door
Na Gearrannan: your questions answered
Does living near the coast affect window mastic in Na Gearrannan?
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 Na Gearrannan for window mastic?
Yes. Our work covers the whole of Scotland, and Na Gearrannan is part of that. Just email us at info@mrmastic.co.uk with a few details of the job, and we will give you a clear price.
Do you work for landlords and businesses?
Yes, we do. We work in homes, commercial premises and hotels.
Do you seal inside as well as outside?
Yes. Outside is the weather seal; inside closes the gap to the plaster. We do one or both.
Do you work on first-floor windows?
Yes, where they can be reached safely. Let us know about access when you ask for a quote so we can plan the job.
How long will my window job take?
A few frames take a few hours. We confirm the timing with your quote.
Is it OK to seal over old sealant?
No. The old sealant always comes out first.
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. We use products from Arbo and Everbuild.
Window mastic in Na Gearrannan, done properly
Behind a thin line of old mastic there’s sometimes a deep void. Filling it with sealant alone leaves a joint that cannot move properly, so we fit backing rod to set the right depth. That way the new bead bonds to the frame and the wall only. We work on patio & French doors, window sills and composite doors, and people most often call us about mastic that’s falling out in pieces and cracked internal joints between frame and plaster.
In and around a place like Na Gearrannan, homes range from older stone-built cottages to newer houses. Exposed frames and sills take the full force of wind-driven rain, so the mastic there works hard.
You’re covered for a year from the day we finish. If there’s a problem with it, please email us at info@mrmastic.co.uk.
- Where
- Na Gearrannan (HS2)
- Region
- Na h-Eileanan Siar
- Guarantee
- A year, on every job
- Price
- A clear quote up front
- info@mrmastic.co.uk
- Updated
- 26 October 2026

Landlords, agents and businesses in Na Gearrannan
We work for letting agents and landlords as well as householders. Sealant work between tenants keeps a property looking cared for before the next move-in.
We also work for property managers and facilities teams. We can quote a run of properties together, and we’re fully insured for the work.
Quotes for window mastic in Na Gearrannan
Your quote is based on your job. We look at:
- Which sealant suits the joint
- Whether there’s mould to deal with
- How easy the joints are to reach
- How many areas need sealing
No two jobs are quite the same, so each one gets its own quote. Size, access and the product the joint needs all make a difference.
Asking for a quote
When you call or email, these details help:
- Roughly how big the job is
- The problem you’ve noticed
- If someone has resealed it before
- If it’s domestic, commercial or a hotel
We quote each job on its own, so start by telling us what you need. Just email us at info@mrmastic.co.uk with the details and send pictures if you have them.
Also in Na Gearrannan
The process
There is not much for you to do on the day. Show us the job and we will take it from there. The work itself takes anything from an hour or two to a full day, depending on how many frames there are from start to finish. Somewhere like Na Gearrannan 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.
- 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.
- We apply a weatherproof sealant to match the frame and tool it neatly.
- Finally we tidy up and check each joint.
Getting ready for the visit
- Where the joints are inside, avoid wetting them before we arrive
- For business premises, tell us about site rules or sign-in
- Let us know about parking restrictions
Getting a quote
For window mastic in Na Gearrannan, email us at info@mrmastic.co.uk. A short description of the job and where it is helps us quote, and you’ll get a clear quote before any work starts.
Advice
DIY sealant or a professional job?
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.
Window mastic in Na Gearrannan: local notes
Na Gearrannan is within about 1 mile of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on the mastic around window and door frames, which can dry out and crack sooner where a building faces the weather. Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and failed outside joints work against that.
Whether the job is in Na Gearrannan itself or nearby, the right material for each joint matters as much as a neat finish. Around Na Gearrannan, as everywhere, window mastic is only as good as the preparation behind it.
Na Gearrannan (Gaelic: Garenin) is in Na h-Eileanan Siar. Every kind of property in Na Gearrannan is covered for window mastic, old or new, large or small. The work is guaranteed for a year. Our area takes in 87 places across Na h-Eileanan Siar.
Jobs for window mastic in HS2 is quoted and booked the same way as anywhere else. Neighbouring places we cover for window mastic include Carloway (1 mile south-east), Shawbost (4 miles north-east), Breasclete (5 miles south), Bragar (6 miles north-east) and Barabhas (10 miles north-east). For island and remote addresses, a little more planning is needed, so let us know when you get in touch.
Near you in Na Gearrannan
Other landmarks nearby include Gearannon Blackhouse Village (within half a mile north-west). For a walk, there’s Loch Langavat.
What sealant work cannot fix
We’ll always be straight with you, so here’s what new sealant will not do:
- Penetrating damp from a failed cavity tray or render
- Worn gaskets, brush seals or a door that has dropped
- Condensation trapped between the panes
If in doubt, send an email to info@mrmastic.co.uk and we’ll say what we think before booking.
Surfaces we seal
- Patio & French doors
- Window sills
- uPVC windows
- Composite doors
- Timber windows & doors
- Aluminium frames
Why act early in Na Gearrannan
Resealing frames is a short job: the visit takes a few hours for a handful of frames, longer for a whole house. Wait for damp to appear and there may be plaster and decorating to sort out too. In a place like Na Gearrannan, small leaks are easy to put off, but water through a failed joint keeps working away until it’s fixed.
The cost depends on how much there is to do, how much old material has to come out and access to the work. We give a clear quote before work begins, so you know where you stand.
What you get with us
- We never seal over old sealant
- We agree the colour with you first
- Anti-fungal silicone where joints get wet
- Domestic, commercial and hotel work
Take a look at what affects the cost or customer reviews.
Keeping the joints in good condition
How long the joints last depends on use and care. We suggest:
- Look round the frames every year or so
- Clear any debris from frame drain holes
- Repaint timber before it’s bare
- Keep solvents and bleach off the sealant
Timber frames need their paint kept up, since wood that gets wet swells and shrinks more. Keep paint off the silicone itself.
Draughts get worse, not better. As old mastic keeps shrinking, the gap widens, and a cold room gets colder. Resealing closes it.
