Na h-Eileanan Siar · Scotland
Window & door mastic in Geirinis, Na h-Eileanan Siar
Window and door frames in Geirinis need attention? We remove the old material, prepare the joints and seal them properly.
- Cracked internal joints between frame and plaster
- Untidy mastic left by window fitters
- Mastic that is falling out in pieces
DIY versus a professional finish
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
Window mastic in Geirinis, done properly
Whether it’s one leaking patio door or every frame on the house, the work is priced before anything is done. To get one, email us at info@mrmastic.co.uk with the number of frames and any access details for window mastic in Geirinis. Typical jobs include sealant in the wrong colour for the frame and leaking joints at the ends of sills, on timber windows & doors, aluminium frames and uPVC windows.
In and around a place like Geirinis, 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.
Your job is guaranteed for a year, as with all our work.
- Location
- Geirinis (HS8)
- Region
- Na h-Eileanan Siar
- Cover
- A year, on every job
- Price
- Quoted before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
When to call us in Geirinis
Plenty of failed mastic was poorly applied in the first place. Mastic laid onto dusty, damp or crumbling surfaces didn’t grip properly, and it lets go sooner than it should.
Most people get in touch after spotting something like this:
- Black, perished sealant on frames
- Gaps where the sill meets the wall
- Whistling draughts around closed windows
- Rain getting in at the frame or under the sill
For jobs in and around Geirinis, choosing the right material for each joint is as important as a tidy finish.
Before you book anyone
- How the joint is cleaned and prepared
- Which sealant they’ll use, and why
- Is the old sealant removed completely?
- How hidden problems are handled
Why it’s worth doing now in Geirinis
Failed mastic is not a reason to replace sound windows. If the frames and glass are in good order, resealing the joints is often all that is needed. If we find failed glass units or worn seals, we will tell you. Out of town in Scotland, exposed walls take a lot of weather, and damp in stone or harled walls takes a long time to dry once water gets behind a joint.
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 work begins.
Why choose Mr Mastic in Geirinis
- Fully insured
- Every job guaranteed for a year
- Rated 4.9 stars on Google
- Experience in homes, commercial sites and hotels
Take a look at what affects the cost and customer reviews.
FAQs for Geirinis
Do you cover Geirinis for window mastic?
Yes, Geirinis is within the area we cover. We work across all of Scotland. Just email us at info@mrmastic.co.uk with a few details of the job.
Does living near the coast affect window mastic in Geirinis?
Near the sea, outside joints face more wind, rain and salt than they would inland, so preparation and the right sealant matter all the more. It’s worth checking the walls that face the sea first.
Should I try DIY first?
That depends on the joint. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional.
Can you seal the gap between the frame and the plaster indoors?
Yes, we do both. Inside, the joint between frame and plaster is sealed neatly, using a paintable sealant if you want to decorate.
Will there be a smell?
That depends on the sealant. Some smell for a while, some hardly at all.
How long does it take to reseal the windows on a house?
It depends on access, the old mastic and the size of the frames. You’ll know the timing when we quote.
Where are you based?
Our base is in Crawley, West Sussex, and we cover South East England, London and all of Scotland.
Are you insured?
Yes. We are fully insured, and we can confirm the details when we quote.
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The process
At the end, we look at the finished work together. The visit itself generally takes anything from an hour or two to a full day, depending on how many frames there are, depending on the size of the job. Outdoor work around Geirinis depends on the weather, as sealant needs a dry surface, so external jobs may need to move if the day turns wet. Work indoors is not affected.
- First, we confirm safe access to each frame.
- All the failed sealant is cut away, along with any loose debris.
- Frame and wall are cleaned and must be dry before sealing, and primed where the sealant calls for it.
- Backing rod fills deep voids and the sealant goes in on top.
- The joint is shaped to shed water and the area tidied.
How to prepare
- Move anything stored near the joints
- Tell us about any previous sealing or DIY attempts
- Keep pets and children clear of the area while we work
Get a quote
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we will talk you through what we’d do. When it suits you, email us at info@mrmastic.co.uk.
Read more
Quotes for window mastic in Geirinis
Jobs vary more than people expect. What affects the quote:
- The type of sealant required
- Access and height
- The number of rooms or windows
- The number and length of the joints
Leaving a failed joint normally makes the job bigger, not smaller. If you’re not sure whether it needs doing, email us at info@mrmastic.co.uk and we’ll give you an honest view and a quote.
Helping us quote
Photos help, but a description is a good start. Try to tell us:
- Roughly how big the job is
- Where the property is
- What the problem is, such as mould, gaps, leaks or cracking
- If someone has resealed it before
Every job is quoted individually. Just email us at info@mrmastic.co.uk with the details and send photos if you have them.
What the job involves on each surface
Window sills
Stone and concrete sills have their own joints, including the one between the sill and the frame above. Those are sealed with a product suited to stone or concrete.
Aluminium frames
Aluminium moves with heat, and the frames are often slimmer than uPVC. A neat, narrow bead in a colour to match suits the frame.
How to look after the new joints
Looking after new joints is easy:
- Keep solvents and bleach off the sealant
- Check the mastic once a year
- Ventilate rooms so frames don’t stay wet inside
- Wash the frames with mild soapy water
Wipe the frames with soapy water when you clean the windows, and avoid solvent cleaners on the sealant.
Water gets in quietly when mastic fails. Often the first sign is a damp patch inside or flaking paint on the reveal. Catching it early keeps the fix to a reseal.
Geirinis homes and the weather
Geirinis 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. Sash and case windows are common in older Scottish homes, often pointed into the wall with traditional sand mastic.
In and around Geirinis, as anywhere, good window mastic starts with a clean, dry, properly prepared joint.
Geirinis (Gaelic: Gerinish) is in Na h-Eileanan Siar. Whether you’re in the middle of Geirinis or further out, window mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Across Na h-Eileanan Siar, we cover 87 places, Geirinis among them.
Every address in HS8 is covered for window mastic. That includes homes and businesses on Cille Bha'nain and Dun Mor. If you are just outside Geirinis, we cover Creag Ghoraidh (4 miles north), Grimsay (5 miles north-east), Balivanich (8 miles north), Baile a' Mhanaich (8 miles north) and Dalabrog (13 miles south). Island and remote addresses take a little more planning, so tell us where you are when you ask for a quote.
Landmarks near Geirinis
Open spaces near Geirinis include Loch Bee and Ben Tarbert.