Shetland Islands · Scotland
Window & door mastic in Sandwick, Shetland Islands
Window mastic across Sandwick and nearby, with old sealant always removed completely and a 12-month guarantee.
- Sealant in the wrong colour for the frame
- Rain getting in at the frame or under the sill
- Rushed sealant from a window installation
What we are called out for in Sandwick
Plenty of failed mastic was poorly applied in the first place. Sealant run over dust, wet brick or loose mortar didn’t grip properly, so it comes away long before its time.
The most common problems we see are:
- Mastic that has split away from the wall
- Untidy mastic left by window fitters
- Draughts coming in around windows and doors
- Water coming in at the bottom corners of a door
In and around Sandwick, as anywhere, good window mastic starts with a clean, dry, properly prepared joint.
Comparing quotes
- Whether all the old sealant comes out first
- What preparation is included
- Whether the sealant suits the joint
- Whether VAT is included
Window mastic in Sandwick
Most frames have an outside joint and an inside one. Outside, the mastic keeps rain out; the internal joint closes the gap to the plaster and stops draughts. Either or both can be done. Common call-outs are for draughty joints inside around the window and cracked sealant at the sill ends, across timber windows & doors, uPVC windows and window sills.
Across smaller places in Scotland, homes range from stone and harled cottages to newer houses, many standing in the open. Exposed frames and sills take the full force of wind-driven rain.
We stand behind the work with a one-year guarantee.
- Location
- Sandwick (ZE2)
- Region
- Shetland Islands
- Cover
- A year, on every job
- Quote
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
What we do, step by step
There’s no need to move everything out, only the area right around the joints. We protect the rest, and the job takes most of a day for a typical house, less for a few frames in most cases. Around Sandwick, distance and access matter more than parking. Tell us how to find the property and how to reach the work, and the visit is planned around that.
- Each frame is looked over and we agree which ones need resealing.
- The old mastic is cut out and scraped back to clean surfaces.
- Deep gaps get closed-cell backing rod to set the depth.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- We tool each bead neatly and check every joint is closed.
Before we arrive
- Keep children and pets away from the work area
- Let us know about stairs, lifts or work at height
- Tell us about any water getting in
How to get a quote
Call for a quick quote, or email us if that is easier. Describe what needs sealing and we will explain what’s involved.
Advice
Sandwick: your questions answered
Is Sandwick within the area you cover?
Yes, Sandwick is covered. Our work covers the whole of Scotland, islands included, from towns to the smallest places. Longer journeys are simply planned in advance.
Is window mastic in a coastal place like Sandwick any different?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. The right product, a clean joint and the right depth all help it cope.
How do I get a quote for window mastic in Sandwick?
There’s no set price, as it depends on the job: its size, the old material, access and the product needed. You will get a clear quote before work begins.
Do you take out the old sealant first?
Yes. All of the old material is cut out and the joint cleaned before resealing.
Can you match the sealant to my frames?
Yes. Anthracite grey, black, brown and white cover most frames, with clear as an option.
Can tenants book the work?
Yes. Ask your landlord first, and we can send them the quote if that helps.
Can resealing stop a draught around my window?
Yes, if the air is getting in around the frame. If it’s through the window’s own seals or a hinge, that’s a different fix, and we will say so.
Do you work for landlords and businesses?
Yes. As well as homeowners, we work for landlords, agents, businesses and hotels across the Shetland Islands.
What we cannot put right
To be straight with you, there are a few things sealant will not fix:
- Worn gaskets, brush seals or a door that has dropped
- Soft or decayed wood in the frame
- Damp coming through the wall itself rather than the frame joint
If you are not sure, just drop us a line at info@mrmastic.co.uk and we’ll give you a straight answer before you book.
Where we work in Sandwick
- Patio & French doors
- Aluminium frames
- Composite doors
- Timber windows & doors
- Window sills
- uPVC windows
Sandwick homes and the weather
Sandwick 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. Island weather, with its wind and salt spray, is tough on the mastic around window and door frames.
For jobs in and around Sandwick, choosing the right material for each joint is as important as a tidy finish.
Sandwick is about 14 miles north of Lerwick, in the Shetland Islands. Homes, rented property, offices and hotels in Sandwick can book us for window mastic. The work is guaranteed for a year. Our the Shetland Islands coverage runs to 63 places, Sandwick among them.
Postcode districts we cover here for window mastic: ZE2. You will find streets such as Rocky Road, Saeter and Harlsdale, all of which we cover. Neighbouring places we cover for window mastic include Clate (1 mile south), Symbister (1 mile north-east), Hamister (1 mile north), Huxter (1 mile east) and Tripwell (2 miles north-east). Within a short drive, we also cover Lerwick (14 miles south), Sound (14 miles south) and Brae (12 miles west). Island and remote addresses take a little more planning, so please mention your location when you email us at info@mrmastic.co.uk.
What’s near Sandwick
Green spaces nearby include Ward of Clett and Loch of Sandwick.
For landlords and businesses
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance that we can handle for you.
Landlords and agents in Sandwick can book us as well as householders. Resealing between tenancies keeps a property looking cared for before the next move-in.
How the job changes by surface
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.
Patio & French doors
Door frames take knocks and movement every time the doors are used. A flexible sealant copes with that without cracking.
Quotes for window mastic in Sandwick
You will get a clear quote before we start. It takes into account:
- How easy the joints are to reach
- The number and length of the joints
- Working hours on commercial sites
- Whether old sealant or filler has to be cut out
A few things move the cost up or down: how much old sealant there is and how stubborn it is, any mould to treat, and whether the work is at height. Your quote takes all of that into account.
Helping us quote
When you call or email, it’s useful to know:
- The rough size of the job
- If it’s domestic, commercial or a hotel
- What the problem is, such as mould, gaps, leaks or cracking
- Where the job is, and your postcode
There’s no standard price list. Instead, we send you a clear quote for your job. To arrange one, send an email to info@mrmastic.co.uk.
What else we do in Sandwick
DIY versus a professional finish
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.