Na h-Eileanan Siar · Scotland
Window Mastic in Branahuie
Problem with your window and door frames in Branahuie? We cut out the old, prepare the joints and apply the right sealant.
- Leaking joints at the ends of sills
- Old mastic that has gone black or come away
- Rain getting in at the frame or under the sill
When it is not the sealant
A few problems are outside what sealant work can do:
- Draughts through the window seals rather than the frame
- Damp coming through the wall itself rather than the frame joint
- Misting between the panes of a double-glazed unit (that needs a new unit)
If in doubt, email us at info@mrmastic.co.uk and we’ll say what we think.
Where we work in Branahuie
- Composite doors
- Timber windows & doors
- Aluminium frames
- Patio & French doors
- uPVC windows
- Window sills
Window mastic in Branahuie
Frames and walls don’t move together. Heat and cold make frames grow and shrink against brick or render that hardly moves. That’s why the joint needs a flexible, low-modulus sealant rather than something rigid. We work on aluminium frames, patio & French doors and window sills, and common reasons people get in touch are cracked internal joints between frame and plaster and gaps where the sill meets the wall.
Across smaller places in Scotland, homes range from stone and harled cottages to newer houses, many standing in the open. Wind-driven rain finds any gap around a frame or sill, so the mastic there works hard.
All our work comes with a one-year guarantee, wherever you are in Na h-Eileanan Siar.

- Where
- Branahuie (HS2)
- Wider area
- Na h-Eileanan Siar
- Guarantee
- A year, on every job
- Quotes
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
For landlords and businesses
For anyone letting property in or around Branahuie, several properties can be quoted together. Send us the addresses and the work at each.
Landlords and letting agents in Branahuie can book us as well as householders. Sealant work between tenants keeps a property looking cared for before the next move-in.
How it works
At the end, we look at the finished work together and tell you how long to leave it. The visit itself usually takes a few hours for a handful of frames, longer for a whole house, depending on the size of the job. Outside jobs in Branahuie need a dry day, because sealant will not bond to a wet joint, so external jobs may need to move if the day turns wet. Work indoors isn’t affected.
- We check each frame and agree which ones need doing.
- We remove the old mastic and clean the frame and the wall.
- Where gaps are deep, backing rod goes in first.
- A flexible, weatherproof sealant is applied in a colour to suit the frame.
- Every joint is checked before we leave.
Getting ready for the visit
- Tell us about any water getting in
- Mention if the joints have been sealed before
- Plan for the work area to be out of bounds to pets and children
Ask for a quote
For a quick quote, get us on the phone, or email us if that is easier. Describe what needs sealing and we’ll explain what’s involved before giving you a price.
Read more
Surface by surface
Patio & French doors
The joints around patio doors run a long way, top, sides and threshold. The threshold and the bottom corners take the most water, so they get particular care.
Timber windows & doors
Where timber has rotted at the joint, it needs repairing first. We will point out any rot we find, as that’s a job for a joiner.
What affects the quote in Branahuie
Your quote is based on your job. We look at:
- Whether old sealant or filler has to be cut out
- When we can work, for business premises
- How many rooms, windows or areas are involved
- The product the joint needs
The cost depends on how much there is to do, how hard the old material is to remove and how easy the joints are to reach. We give a clear quote before we start, so you know where you stand.
Asking for a quote
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- If someone has resealed it before
- Access, such as stairs, a lift or height
- How many joints, rooms or windows are involved
- The type of property
Asking for a quote is easy: let us know what needs doing and where. Photos by email help us understand the job.
DIY versus a professional finish
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
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.
Why act early in Branahuie
A cracked joint around a frame lets rain into the wall. Over time that can mean damp patches, damaged plaster and rotting timber. A reseal is a much smaller job. Around Branahuie, water from a failed joint in an older stone home can soak 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 for an honest opinion and a quote.
Why choose Mr Mastic in Branahuie
- More than 20 years in sealant work
- Quality sealants from Arbo and Everbuild
- Tidy, careful work
- A choice of colours where the product allows
See how sealant jobs are priced and our reviews.
FAQs for Branahuie
Does living near the coast affect window mastic in Branahuie?
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.
Is Branahuie within the area you cover?
Yes, Branahuie is covered. Our work covers the whole of Scotland, islands included, and smaller places are part of that. Longer journeys are simply planned in advance.
When is the sealant fully cured?
Most sealants are touch-dry well before they’re fully cured. We will tell you how long to leave the joint before we leave.
Is it OK to seal over old sealant?
No, it won’t last. It can look neat for a few weeks, but the new layer lifts away from the old one. The old sealant has to come out completely.
Are you ARBOMaster approved?
Yes. We are approved under the ARBOMaster scheme, which is run for the Arbo sealant brand.
Can resealing stop a draught around my window?
It will if the frame joint is the problem. We find where the air is coming from before we reseal.
Should I try DIY first?
Some simple jobs can be done by a careful DIYer. Most DIY failures come from sealing over old material, wet joints or too much sealant.
What does window mastic cost?
There’s no set price, as it depends on the job: its size, the old material, access and the product needed. You’ll get a clear quote before we start.
Also near Branahuie
What else we do in Branahuie
Window mastic in Branahuie: local notes
Branahuie 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. Branahuie is in the west of Scotland, which is wetter than the east, so there’s plenty of rain for the mastic around window and door frames to keep out.
Around Branahuie, as everywhere, window mastic is only as good as the preparation behind it. For jobs in and around Branahuie, choosing the right material for each joint is as important as a tidy finish.
Branahuie is about 2 miles east of Stornoway, in Na h-Eileanan Siar. Our applicators cover window mastic for homeowners, landlords and businesses in Branahuie and the surrounding area. Branahuie is one of 87 places in Na h-Eileanan Siar where we work for window mastic.
We cover every part of the HS2 postcode area for window mastic. We also cover Bràigh na h-Aoidhe (1 mile south-east), Sanndabhaig (1 mile west), Sandwick (1 mile west), Steinis (1 mile north-west) and Plasterfield (1 mile west). Remote and island addresses need a little more planning, so please mention your location when you drop us a line at info@mrmastic.co.uk.
Near you in Branahuie
Nearby you’ll also find Western Isles Hospital (2.6 miles west) and Lewis Loom Centre (2.6 miles west). Green spaces nearby include Loch Àirigh na Lic.
