Shetland Islands · Scotland
Window Mastic in Hoswick
Window mastic across Hoswick and nearby, with every bit of old sealant taken out first.
- Draughts coming in around windows and doors
- Gaps between the frame and the inside reveal
- Hard, cracked sealant around windows
Signs you need window mastic in Hoswick
Joints that are too thin or too deep fail early. A skim of sealant over a wide gap soon tears, and a gap filled solid can’t flex. That’s what backing rod is for.
If you can see any of these, it’s time to have the joints looked at:
- Cracked sealant at the sill ends
- Draughty joints inside around the window
- Hard, cracked sealant around windows
- Draughts coming in around windows and doors
In and around Hoswick, as anywhere, good window mastic starts with a clean, dry, properly prepared joint.
What to look for in a quote
- What the quote includes, VAT included or not
- How hidden problems are handled
- When the joint can take water or movement
- Is the old sealant removed completely?
How we handle window mastic in Hoswick
Over two decades of sealing frames has taught us which products suit which walls. We’re fully insured ARBOMaster approved applicators, and every job is covered by a 12-month guarantee. Common call-outs are for hard, cracked sealant around windows and mastic that’s falling out in pieces, on patio & French doors, timber windows & doors and uPVC windows.
Outdoor sealant needs a dry surface, so window work around Hoswick is planned around the weather, and longer journeys are planned in advance. Tell us about access to all the windows and doors, upstairs included.
Your job is guaranteed for a year, as with all our work.

- Where
- Hoswick (ZE2)
- Wider area
- Shetland Islands
- Cover
- A year, on every job
- Quote
- A clear price before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
The process
We keep the work tidy and contained to the area we are working on, so you can carry on as normal. The job generally takes anything from an hour or two to a full day, depending on how many frames there are, and we tell you how long to leave it before we go. For a place like Hoswick, longer drives are planned in advance. Tell us about tracks, gates, a ferry crossing or anything unusual about getting there.
- We check each frame and agree which ones need doing.
- The old mastic is cut out and the surfaces cleaned back.
- Where gaps are deep, backing rod goes in first.
- New exterior sealant goes on in a matching colour and is tooled smooth.
- Every joint is checked before we leave.
How to prepare
- Tell us about access, such as stairs, a lift or high-level joints
- Tell us about any previous sealing or DIY attempts
- For business premises, tell us about site rules or sign-in
Getting a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and add photos by email if you can.
Read more
Also near Hoswick
Other services in Hoswick
Looking after it afterwards
Looking after new joints is easy:
- Look round the frames every year or so
- Air rooms to keep condensation down around windows
- Clean frames with a soft cloth and soapy water
- Do not use solvent cleaners on the joint
Silicone cannot normally be painted, so mention any painting plans before work begins. We can use a paintable sealant where that matters.
Look out for the warning signs: split or missing mastic, gaps, damp patches inside or black mould on the reveal. Any of these is worth a call.
Questions from Hoswick
Can you do window mastic in Hoswick?
Yes. Our work covers the whole of Scotland, and Hoswick is part of that. You can send an email to info@mrmastic.co.uk and let us know what needs doing.
Does the coastal weather in Hoswick affect outside sealant?
Coastal homes put outside sealant through more weather than inland ones, so preparation and the right sealant matter all the more. It’s worth checking the walls that face the sea first.
When is the sealant fully cured?
Many sealants skin over quickly but take longer to cure fully. We will give you the cure time for the product we used.
Can I do it myself?
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.
How much does window mastic cost in Hoswick?
We don’t publish prices, because the cost depends on the job: how much there is, what’s there now, how we reach it and what it needs. You will get a clear quote before we start.
Do you do commercial work?
Yes. We can plan bigger jobs in stages to suit the site.
Can you do the inside joint as well?
Yes. Draughts often come through the inside gap too, so it can be worth sealing both.
Which products do you use?
We choose the sealant for the joint, not the other way round. Movement, water and weather all affect the choice, and we’ll tell you what we’re using.
Why deal with it now?
Choosing the product is half the job. Interior caulk and bathroom silicone aren’t made for exterior frame joints. An exterior, low-modulus sealant stays flexible in sun and frost. When the nearest tradesperson is a drive away, it’s tempting to leave a small leak, but water through a failed joint keeps working away until it’s fixed.
Every job is a little different, so each one gets its own quote. Size, access and the product the joint needs all make a difference.
Why us?
- More than 20 years in sealant work
- ARBOMaster approved applicator
- A choice of colours where the product allows
- Any old sealant cut out fully, not covered over
See our cost guide or what customers say.
Windows and doors in Hoswick
Hoswick is within about 1 mile of 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. Sash and case windows are common in older Scottish homes, often pointed into the wall with traditional sand mastic.
Whether the job is in Hoswick itself or nearby, the right material for each joint matters as much as a neat finish.
Hoswick is about 11 miles south of Lerwick, in the Shetland Islands. Jobs in Hoswick get the same care as everywhere else we work: old sealant removed completely, careful preparation and a 12-month guarantee. We cover 63 towns and villages across the Shetland Islands, large and small.
Jobs for window mastic in ZE2 is quoted and booked the same way as anywhere else. If you need window mastic at a property on Greenfield Road and Brakefield Road or a nearby road, we can help. Close by, we work in Sandwick (1 mile east), Levenwick (2 miles south), Bigton (3 miles south-west), Mail (3 miles north) and Bremirehoull (3 miles north). Larger places within reach include Lerwick (11 miles north), Sound (11 miles north) and Scalloway (10 miles north). If you are somewhere remote, the job takes a little more planning, so mention it when you ask for a quote.
What’s near Hoswick
Open spaces near Hoswick include Loch of Vatsetter.
Landlord and commercial work in Hoswick
Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
We work for landlords and letting agents as well as householders. Resealing between tenancies is a simple way to keep a property in good order.
Should I try it myself first?
A careful DIYer can reseal a simple joint, 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.
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.
How we quote for window mastic
For a quick quote, just ask. What matters most is:
- Whether the work is at height
- Any working-time requirements on site
- The type of sealant required
- How much there is to do
Instead of a standard rate, we price the job in front of us: the amount of work, the old material and the access. You’ll know the price before we begin.
Asking for a quote
When you contact us, these details help:
- The problem you’ve noticed
- Where the property is
- How we’d reach the joints
- Any previous sealing or DIY work
For window mastic in Hoswick, email us at info@mrmastic.co.uk. A short description of the job and where it is helps us quote, and you will get a clear quote before any work starts.
